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Global Surface Marine Monthly Statistics - Jan 2025

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Statistics on global surface marine meteorological and oceanographic data are compiled monthly by personnel of NOAA's
NWS/NCEP/Central Operations. These data include those which are observed/measured by ships (including those vessels that are part of the
U.S. Voluntary Observing Ship Project), moored and drifting buoys, Coastal Marine Automated Network (CMAN) stations, and tide gauge stations
(tide gauge data are provided by NOAA's National Ocean Service/Center for Operational Oceanographic Products and Services (NOS/CO-OPS)).
Separate statistics are compiled monthly for specified vessels in the Gulf of Alaska and for specificed member vessels of the
International SeaKeepers Society. The data for which these statistics are compiled include sea-level pressure, air temperature, and wind direction
and speed (for the surface meteorological data), and sea surface temperature (for the oceanographic data).

Only 1 year's worth of statistics will be available at any given time on this web site. Please note that the monthly statistics are updated on
the first business day of each month. I.e. if the 1st falls on a weekend or on a Federal Government holiday, the statistics are updated on the first
business day which follows the weekend the or holiday.

The global monthly statistics are sent to the UKMet Office in Bracknell, England each month (the UKMet Office has been designated by the
World Meteorological Organization (WMO) as the lead center for monitoring surface marine observations), where they are consolidated with
additional statistics and forwarded to platform managers. The platform managers may then investigate platforms listed in the statistics to see if
instrumentation needs to be corrected. Please note that the statistical files available via this web site are not indentical to those passed to
Bracknell, in that the ship/platform names are included in the files on this web site (they are not included in the Bracknell files).

The monthly statistics produced for the Gulf of Alaska vessels and for the International SeaKeepers Society vessels are made available to those
program managers via this web site, so that they may evaluate the performance of select vessels in their area of interest.

All of the monthly statistics are computed using differences between the observed data and first guess fields from one of 2 NWS numerical
models. This file explains the method of comparison between the data and first guess fields, and also provides the criteria used in determining
which platforms will be listed in the NCEP Central Operations (NCO) global marine statistics each month.

Standard of Comparison

Data from each platform (ships, moored (fixed) buoys, drifting buoys, CMAN platforms, and tide gauge stations) are compared to forecasts from
one of 2 NWS numerical models for each of 4 daily synoptic periods. Each synoptic period is a 6 hour window centered on the times given in the
table below. The first guess valid times are also given below. All data observed/measured during each synoptic period are compared to the first
guess valid for that synoptic period. The first guess is interpolated to the platform's location and differences between observation and first guess
are computed. Differences between observed data and forecasts are archived four times daily.

Synoptic Period Numerical Model Used First Guess Valid Time
0000 UTC 6-hour forecast from the 1800 UTC run of NWS's Global Data Assimilation System (GDAS) 0000 UTC
0600 UTC 6-hour forecast from the 0000 UTC run of GDAS 0600 UTC
1200 UTC 6-hour forecast from the 0600 UTC run of GDAS 1200 UTC
1800 UTC 6-hour forecast from the 1200 UTC run of GDAS 1800 UTC


If the GDAS is unavailable for a particular synoptic period, a 6-hour forecast from the previous run of NWS's Global Forecast System (GFS) is
used instead.

Each synoptic period includes data with observation times +/- 3 hours as follows:

Synoptic Period Observation Times of Data
0000 UTC 2100 UTC (previous day) through 0259 UTC
0600 UTC 0300 UTC through 0859 UTC
1200 UTC 0900 UTC through 1459 UTC
1800 UTC 1500 UTC through 2059 UTC


No time interpolation between observed data and first guess is done (i.e. an observation from 1000 UTC or 1400 UTC will be compared to a first
guess valid at 1200 UTC).

Criteria for specific parameters

  • Global monthly statistics:

    For each of the 5 parameters (sea-level pressure, air temperature, wind speed, wind direction, and sea surface temperature) included
    in the monthly statistics, the following criteria must be met in order for a particular platform to be listed in the NCO global monthly
    statistics

    Sea-level pressure (slp):

    • 20 or more slp observations for the month, and 1 or more of the following:
      • absolute value of bias (mean difference between observation and forecast) is at least 4.0 mb
      • standard deviation of difference is at least 6.0 mb
      • percentage of reports that were gross errors is at least 25% of the total number of reports received for this parameter (see Definition of gross errors, below).

    Air temperature:

    • 20 or more air temperature observations for the month, and 1 or more of the following:
      • absolute value of bias is at least 4.0 deg C
      • standard deviation of difference is at least 6.0 deg C
      • percentage of reports that were gross errors is at least 25% of the total number of reports received for this parameter.

    Wind direction:

    • 20 or more wind direction observations for the month, and 1 or more of the following:
      • absolute value of bias is at least 30.0 degrees
      • standard deviation of difference is at least 80.0 degrees
      • percentage of reports that were gross errors is at least 25% of the total number of reports received for this parameter.

    Wind speed:

    • 20 or more wind speed observations for the month, and 1 or more of the following:
      • absolute value of bias is at least 5.0 m/s
      • percentage of reports that were gross errors is at least 25% of the total number of reports received for this parameter.

    Sea surface temperature (sst):

    • 20 or more sst observations for the month, and 1 or more of the following:
      • absolute value of bias is at least 4.0 deg C
      • standard deviation of difference is at least 6.0 deg C
      • percentage of reports that were gross errors is at least 25% of the total number of reports received for this parameter.

  • Gulf of Alaska monthly statistics and International SeaKeepers Society monthly statistics:

    Specific callsigns were given to NCO to indicate those vessels which are to be included in these monthly statistics. No other criteria must
    be met, except that the vessels must have at least one observation during the desired month. If a vessel reports only once during a
    specific month, then the bias for any reported parameter is not a mean bias but is merely the difference between observed and first guess
    values for that parameter. Standard deviation is only computed when a vessel has 2 or more reports for any particular parameter in the
    month. As with the global monthly statistics, gross errors are not included in computations of bias or standard deviation (see Definition
    of gross errors
    below).

With the exception of wind direction, the bias for each parameter is always computed as (observed data - first guess). A mean difference bias for
slp of -4.8 mb would mean that the observed slp for that platform is, on average, 4.8 mb lower than the first guess slp. Also, a low standard
deviation (SD) of the difference would mean that the platform's bias is consistent (the closer to 0 the SD is, the more consistent that platform is
for that parameter). For example, if the slp bias was -4.8 mb and standard deviation of the difference was 1.0, that would imply that the platform
consistently was around 4.8 mb too low with its slp. If the SD is high, then the platform has a lot of variability for the parameter in question, with
with regards to its comparison with the first guess.

Calculation of bias and standard deviation for wind direction

For platforms reporting wind direction that is consistently close to 180 degrees off the first guess wind direction, using the regular algorithm of
(observed wind direction - first guess wind direction) would result in a very large SD and bias, which would make it difficult to detect the wind
direction error. The ideal for this situation would be to have a small SD with a bias on the order of 180 degrees. This is possible with the use of
the algorithm used by Meteo-France's Centre for Marine Meteorology (Centre de Meteorologie Marine (CMM)) in computation of wind direction
statistics for moored and drifting buoys. This algorithm computes bias and SD for the following series:

  • (Obs - FG)
  • (Obs + 90) - FG
  • (Obs - 90) - FG
  • (Obs + 180) - FG

where Obs = observed wind direction and FG = first guess wind direction.

The bias and SD are computed for each of the above 4 series. The smallest of the 4 SD values is selected and then (bias - i) (where i is 0, 90, -90,
and 180, respectively) is selected as the actual bias if the series ((Obs + i) - FG) was the series associated with the smallest SD. See the following
table for more details.

If smallest SD is computed for Bias used is
(Obs - FG) bias = ((bias of (obs - FG)) - 0)
((Obs + 90) - FG) bias = ((bias of ((obs + 90) - FG)) - 90)
((Obs - 90) - FG) bias = ((bias of ((obs - 90) - FG)) - (-90))
((Obs + 180) - FG) bias = ((bias of ((obs + 180) - FG)) - 180)


Using this algorithm for all wind direction bias and SD computations will ensure that the most accurate representation of the difference between
observed wind direction and first guess wind direction will be used and displayed in the monthly statistics.

Sample lines from global monthly statistics (and explanation)


          NCEP CENTRAL OPERATIONS (NCO) PLATFORM STATS
                         AUGUST 2024
                SEA-LEVEL PRESSURE FOR ALL HOURS

PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR

3FFA5      MSC DIVINA                SHP         50           11.9        2.1           3


The above lines were taken from the global monthly statistics produced for August 2024. The platform shown has the callsign 3FFA5. Its name
is MSC Divina. The letters SHP in the TYPE column indicate that the platform is a ship (see Platform types seen in monthly statistics below).
The number of reports used in calculation of the sea-level pressure statistics for ship 3FFA5 is 50. The mean difference is 11.9 mb and the
standard deviation of the difference is 2.1 mb. The number of gross errors for sea-level pressure from ship 3FFA5 is 3 (see Definition of gross
errors
below). Please note that the total number of sea-level pressure reports received from ship 3FFA5 for the month of August is 53
(the sum of the numbers listed under NO. REPORTS and # GROSS ERR as seen above).

Caveat

Please note that a platform's appearance in the monthly statistics does not necessarily mean that the platform's data are bad. A high bias can be
indicative of a persistent problem with the first guess at the platform's lcoation. While the model's grid resolution and topogoraphical resolution are
1 degree x 1 degree, this is still not fine enough to depict small-scale local meteorological and oceanographic effects. In addition, the first guess, in
general, performs more poorly in the Southern Hemisphere than in the Northern Hemisphere, due to lower data counts (much less land south of
the Equator, so not nearly as many land-based surface and upper air observations, plus major shipping lanes are primarily in the Northern
Hemisphere).

Definition of gross errors

An observation is considered to be a gross error if it differs from the first guess by the following values:

slp abs(obs - fcst) ≥ 15.0 mb
air temperature abs(obs - fcst) ≥ 15.0 deg C
wind direction abs(obs - fcst) ≥ 100 degrees
wind speed abs(obs - fcst) ≥ 15.0 m/s
sst abs(obs - fcst) ≥ 15.0 deg C



abs: absolute value
obs: observation
fcst: forecast (first guess)



By convention, gross errors are not used in the computation of the mean difference or standard deviation.

Platform types seen in monthly statistics

Abbreviation Type
SHP ship
DB drifting buoy
FB fixed (moored) buoy
CMN CMAN platform
TG tide gauge station



Statistics are not computed for platforms with the following callsigns: 'SHIP', 'BUOY', 'BBXX', 'PLAT', 'RIGG', or 'METEO'. These callsigns are not
unique (i.e. more than one platform may have the same callsign), so statistics for these callsigns would be meaningless.

Ship and Platform Names

The ship and platform names are obtained from several sources. Since callsigns and ship names change from time to time, a particular callsign
may be associated with 2 or more different names, or a ship name may be associated with several callsigns. Although we will update the names
file several times a year, we may not know which callsign/name is current.

A good web site for querying ship names and/or callsigns is that of the Ship-Of-Opportunity Programme (SOOP), which is a joint program of the
WMO and the Intergovernmental Oceanographic Commission (IOC). On the OceanOps dashboard, click "Enter Dashboard". In the upper left
"Search" bar, one may enter a full or partial ship name or callsign, and an attempt will be made to find a match on either.

Additional Marine Data/Information

If you are seeking climatological marine data such as average temperature, wave heights, or prevailing winds for a particular oceanographic
region, please contact NOAA's National Centers for Environmental Information (NCEI). For marine forecasts, please contact NOAA/NWS/NCEP's
Ocean Prediction Center (OPC).

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          NCEP CENTRAL OPERATIONS (NCO) PLATFORM STATS                                        
                         JANUARY   2025                                                       
                SEA-LEVEL PRESSURE FOR ALL HOURS                                              
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
2CYD8      UNKNOWN                   SHP         20           -5.3        0.6           0     
2EIF7      UNKNOWN                   SHP         33            4.8        0.6           0     
3E3566     UNKNOWN                   SHP         47            6.3        1.2           0     
3EBY2      UNKNOWN                   SHP         12           12.3        3.4          28     
3EJF3      MSC ORCHESTRA             SHP         49            6.1        1.8           0     
3EPL4      MSC POESIA                SHP        248            5.8        3.6           0     
3FFA5      MSC DIVINA                SHP         24           13.4        1.7          26     
3FOA6      MSC PREZIOSA              SHP        108            4.8        3.6           5     
3FON6      UNKNOWN                   SHP         44            4.5        2.0           0     
3FWH8      EVER LOTUS                SHP         58            7.0        4.5           0     
3FYP8      UNKNOWN                   SHP         31            4.3        0.7           0     
5LQA3      SPANACO ADVENTURE         SHP         27            4.4        1.4           0     
7JZY       UNKNOWN                   SHP         19            1.0        1.2          11     
7KAS       UNKNOWN                   SHP         29            5.1        1.6           0     
9HA3062    MEIN SCHIFF 3             SHP         38           -4.9        0.8           0     
9HA3793    CMA CGM LITANI            SHP          0            0.0        0.0          52     
9HA3973    CMA CGM ARKANSAS          SHP         22           -4.6        2.7           0     
9HA5209    MSC VIRTUOSA              SHP        452            8.8        4.5           5     
9HA5370    MSC SEASHORE              SHP        106           10.5        1.8           0     
9HA5682    MSC WORLD EUROPA          SHP         41           -5.2        3.0           0     
9HA5823    EXPLORA 1                 SHP         75            6.3        2.6           0     
9HJB9      CELEBRITY CONSTELLATION   SHP         74            4.3        1.2           0     
9HSJ7      DISHA                     SHP         27            6.0        2.0           0     
9V3736     UNKNOWN                   SHP         36            8.0        3.1           0     
9V3912     KN AMETHYST               SHP        459            4.1        1.4           0     
9V5247     MAERSK SOPHIA             SHP         30            5.3        1.0           0     
9V6459     MAERSK AMAZON             SHP         62            4.2        1.7           0     
9V7629     EVER MAST                 SHP         21            4.6        1.1           0     
9V7650     UNKNOWN                   SHP        188            8.2        2.2           3     
9V7980     EVER FRANK                SHP         43            6.3        1.6           0     
9V9399     APL SOUTHAMPTON           SHP         44            6.2        1.6           0     
9V9404     APL DUBLIN                SHP         48            4.4        2.1           0     
9VHF2      MAERSK BATAM              SHP         25            9.8        1.8           0     
A8VP8      TUBUL                     SHP         23            8.7        2.1           0     
A9LV       SEAPEAK BAHRAIN           SHP         16           13.7        0.9          16     
C6ED5      CARIBBEAN VOYAGER         SHP         20            4.2        1.9           1     
C6EO5      CANOPUS VOYAGER           SHP         29            7.3        1.0           0     
C6FJ9      NORWEGIAN VIVA            SHP         24           -5.5        1.6           0     
D5XC5      YM TOTALITY               SHP         41           -4.2        2.5           0     
H8EW       MSC ARMONIA               SHP         37            5.0        3.3           0     
HOPW       MSC LIRICA                SHP        102           -4.3        1.2           0     
JPTX       UNKNOWN                   SHP         86            6.4        1.8           0     
KUL7SEK    UNKNOWN                   SHP         44            4.8        0.9           0     
LAPE7      STAR LIMA                 SHP         69            5.7        1.2           2     
LAVD4      STAR HERDLA               SHP         46            6.4        0.7           0     
LAVN4      STAR HIDRA                SHP         24            5.6        1.9           0     
LOCW       UNKNOWN                   SHP         34           -5.0        1.5           1     
MRVWWQV    UNKNOWN                   SHP          6            3.9        5.3          27     
OBMT       UNKNOWN                   SHP         37            4.5        2.0           0     
ONKJ       LA SELVA                  SHP         21            4.1        2.0           0     
OXFU2      OLUF MAERSK               SHP         22            4.8        0.8           0     
OXSQ2      MAERSK ESSEX              SHP         28            7.9        1.4           0     
OZFW2      UNKNOWN                   SHP         30           -4.1        1.8           0     
OZHS2      SALLY MAERSK              SHP         97            6.3        1.3           0     
S6CH6      MAERSK SEMAKAU            SHP         41            5.3        1.1           0     
TNVXRHV    UNKNOWN                   SHP         20           -5.0        1.1           0     
V7A2148    MINERAL BRUSSEL           SHP         24            4.3        2.0           0     
V7A4788    MARLIN HESTIA             SHP         72            9.7        1.8           0     
V7A5254    MARLIN LA PLATA           SHP        517            4.3        5.6           0     
V7A6073    STI MIRACLE               SHP         21            5.6        0.6           0     
V7A6082    STI MODEST                SHP        461            6.1        2.1           0     
V7A6440    RICHMOND VOYAGER          SHP         56            6.0        2.0           0     
V7DJ7      STI CONNAUGHT             SHP        114            4.2        1.9           0     
V7HH2      STI GALLANTRY             SHP         20           -5.7        2.8           0     
V7QT7      UNKNOWN                   SHP         32            4.2        2.1           0     
VRCI9      UNKNOWN                   SHP         20            5.1        1.9           0     
VRCY7      UNKNOWN                   SHP         26            6.4        1.8           0     
VRDW2      UNKNOWN                   SHP         60           -4.3        0.8           0     
VRIB2      UNKNOWN                   SHP         28            7.4        1.3           0     
VRID6      COSCO PRINCE RUPERT       SHP         30           -5.2        1.6           0     
VRLT9      SAGA FANTASY              SHP         35            5.0        0.9           0     
VRTU5      NYSTED MAERSK             SHP         77           -5.7        1.1           0     
VRUN2      ZIM USA                   SHP         22            4.1        2.5           0     
VRVO3      GERNER MAERSK             SHP         41            8.6        0.9           0     
WNGW       TUSTUMENA                 SHP         29           -4.2        2.2           0     
WTDO       NOAA OREGON II (AWS)      SHP        310           -2.0        6.4           0     
YUTPB4M    UNKNOWN                   SHP         63            4.5        1.8           0     
ZGFY4      CAJUN SUN                 SHP         42           -8.4        1.8           0     
HHLO1      UNKNOWN                   CMN       2952           -4.3        1.4           0     
FRWL1      UNKNOWN                   TG         982            4.6        1.0           0     
41082                                FB        2952           -5.0        2.0           0     
                                                                                              
                                                                                              
                         JANUARY   2025                                                       
                 AIR TEMPERATURE FOR ALL HOURS                                                
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
3FAR9      UNKNOWN                   SHP         20            4.1        1.9           0     
7AZU3YW    UNKNOWN                   SHP         20            5.4        3.6           0     
AMOUK85    UNKNOWN                   SHP         55            3.0        1.0          22     
C6CN5      SEAPEAK VANCOUVER         SHP         25            4.5        2.3           0     
DBHNUYD    UNKNOWN                   SHP         24            4.7        6.2          21     
ONKJ       LA SELVA                  SHP         21            6.7        2.0           0     
V7HH2      STI GALLANTRY             SHP         20            4.7        2.6           0     
VRID6      COSCO PRINCE RUPERT       SHP         30            4.0        2.7           0     
VRWC8      UNKNOWN                   SHP         27            4.2        3.7           0     
WTDO       NOAA OREGON II (AWS)      SHP        232            3.3        4.5          78     
WTEG       NOAA REUBEN LASKER (AWS)  SHP        799           10.8        1.8         159     
WUR8857    LEE A. TREGURTHA (AWS)    SHP          0            0.0        0.0         154     
PSTL1      UNKNOWN                   TG         928           -7.3        3.7          54     
                                                                                              
                                                                                              
                         JANUARY   2025                                                       
                  WIND DIRECTION FOR ALL HOURS                                                
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
2GLI9      EVER LINKING              SHP         30           42.5       30.4           3     
2WDQB3E    UNKNOWN                   SHP         76         -151.1        9.5           4     
32ST0      UNKNOWN                   SHP        362           63.5       44.3          60     
3E3566     UNKNOWN                   SHP         46           92.6        9.8           1     
3EBY2      UNKNOWN                   SHP         35          -38.8       36.6           5     
3EWW7      EVER FORE                 SHP         15           -9.3       32.0           5     
3FAR9      UNKNOWN                   SHP         11          -11.7       43.0           9     
3FUY2      UNKNOWN                   SHP         27          165.3       16.2           4     
3FZI8      MSC SPLENDIDA             SHP         26           92.3       46.1          21     
4ANFBRL    UNKNOWN                   SHP         27          -92.2        5.6           0     
6YDVKBY    UNKNOWN                   SHP         32           49.8       52.7           8     
7KGK       UNKNOWN                   SHP         23          151.1       24.9           4     
8RJHNYQ    UNKNOWN                   SHP         36         -154.2        6.2           2     
9HA4902    MSC BELLISSIMA            SHP         67          -33.0       34.9           7     
9HA5370    MSC SEASHORE              SHP         87          -30.5       31.5          10     
9HJB9      CELEBRITY CONSTELLATION   SHP         70         -122.7       14.5           4     
9HSJ7      DISHA                     SHP         20          -72.0       54.9           7     
9SYU6TM    KMARIN RESOURCE           SHP         32          -39.5       44.1           5     
9V3913     KN ARCADIA                SHP        258            3.1       45.2         106     
9V5243     MAERSK SEVILLE            SHP         39         -143.0       12.4           3     
9V7625     EVER MAX                  SHP         23           97.7        7.4           1     
9V7648     UNKNOWN                   SHP          9          -31.3       35.0          16     
9V8839     UNKNOWN                   SHP         37         -108.4       19.9           1     
9V9288     EVER LAWFUL               SHP         16          176.7       20.4          11     
9V9404     APL DUBLIN                SHP         46         -113.6        0.0           2     
9V9574     MANIFESTO                 SHP         29          -38.1       44.3           6     
A9LV       SEAPEAK BAHRAIN           SHP         17         -172.8       43.9          15     
AHXS2YR    UNKNOWN                   SHP         31          -32.4       15.1           0     
AMOHK02    UNKNOWN                   SHP         87          -38.1       34.1          42     
BFHM5UQ    UNKNOWN                   SHP         45          113.2        0.6           2     
BFUGCQQ    UNKNOWN                   SHP         56         -167.9       10.5           4     
BJKUBKR    UNKNOWN                   SHP         33         -100.0       16.6           1     
C6CX3      NORWEGIAN JOY             SHP        347           -4.2       44.8         116     
C6DL4      NORWEGIAN BLISS           SHP         36          -94.0        3.4           0     
C6EI3      APOLLO VOYAGER            SHP         13           -8.5       48.0          13     
C6EI4      ARTEMIS VOYAGER           SHP         23          -56.0       42.3           5     
C6FB3      NORWEGIAN PRIMA           SHP         41          175.5        7.9           2     
C6WK7      NORWEGIAN JADE            SHP         28           -5.9       29.0          10     
C6ZI9      SEVEN SEAS NAVIGATOR      SHP         19          136.3        0.0           2     
CCAV       UNKNOWN                   SHP         18         -161.5       38.7           5     
CFN5517    ALGOMA MARINER (AWS)      SHP       1877          -32.1       37.6         126     
D5AD7      TOLTEN                    SHP         30          -50.8       28.1           5     
D5XC5      YM TOTALITY               SHP         38          133.7        1.2           3     
DDGR99J    UNKNOWN                   SHP         24          -98.7       53.9          20     
DUUBLZG    UNKNOWN                   SHP         39          141.4       21.2           3     
DUUFU3N    UNKNOWN                   SHP         79           32.1       35.1           6     
EUCFR07    UNKNOWN                   SHP         20           -3.0       32.5           7     
GGJP2GK    UNKNOWN                   SHP         29           31.8       35.9           3     
GKHEABF    UNKNOWN                   SHP         43         -159.1       23.6           2     
H3AJ       UNKNOWN                   SHP         13           29.5       47.1           7     
H8XH       MSC SINFONIA              SHP         24           -8.8       41.8           9     
JDWV7LP    UNKNOWN                   SHP         70          -51.6       47.6          18     
JKFA7QZ    UNKNOWN                   SHP         78          112.0       14.9           2     
JNSR       UNKNOWN                   SHP         67          -92.2        1.8           0     
KABP       MAERSK OHIO               SHP         29          154.7        9.5           2     
KAQP       ATLANTIS (AWS)            SHP         38           -9.9       50.7          17     
LAVN4      STAR HIDRA                SHP         24           88.4        3.9           0     
LOCU       UNKNOWN                   SHP         20            0.6       33.1           9     
LOCW       UNKNOWN                   SHP         24            7.0       37.1          11     
LVGC33T    UNKNOWN                   SHP         20          147.7        0.9           2     
MWAQ       UNKNOWN                   SHP         26          -39.5       27.9           1     
NBTM       USCGC POLAR STAR          SHP         62          -49.8       42.7           9     
OBMT       UNKNOWN                   SHP         23          -10.1       50.5          14     
OWWS2      CORNELIA MAERSK           SHP         31          -30.1       35.8           3     
OXSQ2      MAERSK ESSEX              SHP         18          163.8       46.0           6     
QQGABRT    UNKNOWN                   SHP         18          -46.2       31.7           5     
RULLM7N    UNKNOWN                   SHP         21         -144.9        0.2           2     
S6LT3      UNKNOWN                   SHP         40           17.2       46.2          14     
SWN8T6Y    UNKNOWN                   SHP         24          171.2       12.9           2     
TXQQQGX    UNKNOWN                   SHP         19         -165.9        0.4           2     
UBRI5      UNKNOWN                   SHP         17          -34.4       34.4           4     
UDAD       UNKNOWN                   SHP         34         -174.9        3.3           2     
V7A2148    MINERAL BRUSSEL           SHP         18           -7.2       29.6           6     
V7A4787    MARLIN HERA               SHP        295           -3.6       45.3         149     
V7A4788    MARLIN HESTIA             SHP         55           60.0       48.4          17     
V7A5099    MARLIN LORETO             SHP         40          153.6       14.9           3     
V7A6073    STI MIRACLE               SHP         20          105.5        8.3           1     
V7A6496    SINGAPORE VOYAGER         SHP         54           34.2       19.5           0     
V7DJ7      STI CONNAUGHT             SHP        105           33.1       26.0           9     
V7QJ3      TRINITY                   SHP         41           43.7       43.8           4     
VGWM       JOHN D. LEITCH (AWS)      SHP         38          -51.9       35.2           4     
VLMJ       UNKNOWN                   SHP         45           67.6       44.6          21     
VMIC       UNKNOWN                   SHP        418          -32.5       35.2          55     
VRBX7      UNKNOWN                   SHP         17           13.4       28.8           6     
VRCY7      UNKNOWN                   SHP         22           43.7       40.8           5     
VREM6      UNKNOWN                   SHP         26           -0.9       39.0          12     
VRFT7      UNKNOWN                   SHP         20          130.0       34.0          54     
VRNS2      UNKNOWN                   SHP         38           41.6       35.0           3     
VRVQ9      UNKNOWN                   SHP         17           33.6       36.1           3     
VRWC8      UNKNOWN                   SHP         25          -32.6       27.3           2     
WACW       POLAR DISCOVERY           SHP         35          111.2       10.2           2     
WC5932     WILFRED SYKES             SHP         47          179.8        4.4          30     
WDC3031    RICHARD BRUSCO            SHP         18           37.9       33.2           2     
WDE7804    KESTREL                   SHP        266           92.8       44.3         221     
WDK8035    STEADFAST                 SHP        430          -35.0       42.0          62     
WNGW       TUSTUMENA                 SHP         17          101.4       47.4          12     
WSAF       SALLY RIDE (AWS)          SHP        217            0.6       53.5         140     
WSQ2674    ROBERT GORDON SPROUL (AWS SHP        311          -10.4       49.0         180     
WTDO       NOAA OREGON II (AWS)      SHP        190          -20.0       42.1         120     
WTEB       NOAA FAIRWEATHER (AWS)    SHP        184          -18.0       47.8         100     
WTED       NOAA BELL M. SHIMADA (AWS SHP        133          -68.6       49.2          73     
WTEO       NOAA GORDON GUNTER (AWS)  SHP        384           49.9       26.6         108     
WTER       NOAA NANCY FOSTER (AWS)   SHP         48          108.9       33.5          39     
WYM9567    AURORA                    SHP        813          -12.3       48.7         311     
WZD2465    H. LEE WHITE              SHP         21          122.2        9.6           2     
XCCB4      UNKNOWN                   SHP         35         -111.9       18.0           2     
XPPQEVQ    UNKNOWN                   SHP         25          -32.9       30.9           1     
XSPQWLM    UNKNOWN                   SHP         33          -10.8       36.6          12     
YUTPB4M    UNKNOWN                   SHP         45            9.1       44.6          18     
ACXS1      UNKNOWN                   CMN       1425           -3.3       51.0         543     
ANMN6      UNKNOWN                   CMN       1273          -57.3       46.6         679     
BABT2      UNKNOWN                   CMN       2700          -34.1       31.6        1399     
CBLO1      UNKNOWN                   CMN       2798          -33.3       24.8          86     
CLKN7      UNKNOWN                   CMN         33          -10.5       43.6          14     
CPXC1      UNKNOWN                   CMN       3072          -64.9       45.5        2007     
CSPA2      UNKNOWN                   CMN        419           47.1       40.2          58     
DESW1      UNKNOWN                   CMN        351           -3.0       48.6         141     
ELXC1      UNKNOWN                   CMN       1422           56.5       50.4         546     
ERXA2      UNKNOWN                   CMN        927           46.6       39.8         153     
GUXA2      UNKNOWN                   CMN       2075          -21.4       45.1         864     
HAXA2      UNKNOWN                   CMN       1930          -11.6       45.8        1009     
HMRA2      UNKNOWN                   CMN       1659           56.9       35.5         267     
ILOH1      UNKNOWN                   CMN       2557           85.6       55.3        1544     
JCRN4      UNKNOWN                   CMN       1817          -59.9       23.7         151     
JLXA2      UNKNOWN                   CMN       2143          -27.5       43.8         794     
KEXA2      UNKNOWN                   CMN       1874            6.7       48.5        1064     
LJPC1      UNKNOWN                   CMN        371           52.1       50.3         120     
LMFS1      UNKNOWN                   CMN        884           -8.1       36.9         368     
LPNM4      UNKNOWN                   CMN       3546           30.8       21.3          63     
MCYI3      UNKNOWN                   CMN       2911          -91.2       10.1           7     
MRKA2      UNKNOWN                   CMN        706           -6.5       48.1         276     
MRNA2      UNKNOWN                   CMN       2120          -14.3       47.0         809     
MVXA2      UNKNOWN                   CMN       2489           43.4       46.5         451     
MXXA2      UNKNOWN                   CMN       2328          -67.7       36.7         498     
NAXR1      UNKNOWN                   CMN       1561           83.0       26.9         407     
NPDW3      UNKNOWN                   CMN        794          -54.1       30.9         174     
NWWH1      UNKNOWN                   CMN       2795          -25.6       38.3        1287     
OMHC1      UNKNOWN                   CMN       3393           -6.1       52.4        1498     
PAXA2      UNKNOWN                   CMN       1341           -4.6       37.4         483     
PBFW1      UNKNOWN                   CMN       1252            4.9       53.2         684     
PBPA2      UNKNOWN                   CMN        350           47.9       38.8         127     
PCNT2      UNKNOWN                   CMN       3645          -56.9       34.7         455     
PGXA2      UNKNOWN                   CMN       1840          -71.5       51.8        1076     
POTA2      UNKNOWN                   CMN        673           -9.6       43.4         309     
PTAT2      UNKNOWN                   CMN        467          -33.2       33.3          25     
PTLA2      UNKNOWN                   CMN       2359          -60.3       44.1         555     
RKXF1      UNKNOWN                   CMN       1834           45.4       33.9         134     
RSJT2      UNKNOWN                   CMN       2796          -14.0       38.8        1304     
RTAT2      UNKNOWN                   CMN       3824          -41.5       32.1         276     
SDIA2      UNKNOWN                   CMN       1070            4.9       42.4         367     
SFXC1      UNKNOWN                   CMN       1379          -75.3       51.0         589     
SHXA2      UNKNOWN                   CMN       2048           63.3       49.9         871     
SISW1      UNKNOWN                   CMN       1719           -2.4       56.9        1230     
SKXA2      UNKNOWN                   CMN       2101          -19.4       32.4         812     
SLVM5      UNKNOWN                   CMN       1611           53.3       23.4        1110     
SLXA2      UNKNOWN                   CMN       2099           -2.8       49.6         822     
STXA2      UNKNOWN                   CMN       1736         -140.6       47.0        1187     
TCMW1      UNKNOWN                   CMN       3314           65.0       49.7        1155     
TIXC1      UNKNOWN                   CMN       1355           -9.6       46.6         608     
TKEA2      UNKNOWN                   CMN       1425         -175.7       51.2        1496     
TPLM2      UNKNOWN                   CMN        432          -32.4       31.2          60     
WAXM3      UNKNOWN                   CMN          0            0.0        0.0          24     
WEXM1      UNKNOWN                   CMN       1782          -32.7       32.8         186     
WKXA1      UNKNOWN                   CMN       1357           -9.1       36.1         579     
WPOW1      UNKNOWN                   CMN        325          -90.3       52.8         167     
YGNN6      UNKNOWN                   CMN       2890          -41.1       24.2          53     
YRSV2      UNKNOWN                   CMN       1218          160.0       44.6         750     
AAMC1      UNKNOWN                   TG         639           76.1       54.0         343     
ANPT2      UNKNOWN                   TG         870          -60.1       32.5         112     
ANTA2      UNKNOWN                   TG         699           57.4       50.3         279     
ANVC1      UNKNOWN                   TG         654          176.5       48.0         328     
BABT2      UNKNOWN                   TG         651          -35.4       31.3         327     
BMTW1      UNKNOWN                   TG         581          -17.9       44.9         401     
CHAO3      UNKNOWN                   TG         845           45.0       43.6         137     
CKYF1      UNKNOWN                   TG         922          -34.6       33.4          60     
CPMW1      UNKNOWN                   TG         901          -36.6       37.1          81     
CPNW1      UNKNOWN                   TG         886          -38.2       34.7          81     
CRVA2      UNKNOWN                   TG         640          -32.4       46.3         342     
EMAT2      UNKNOWN                   TG         914          -34.6       29.5          68     
FRWL1      UNKNOWN                   TG         905          -32.7       27.0          77     
FTPC1      UNKNOWN                   TG         736          -10.4       45.1         246     
ILOH1      UNKNOWN                   TG         651            3.6       55.7         332     
JNEA2      UNKNOWN                   TG         727          -22.8       44.4         254     
KECA2      UNKNOWN                   TG         612           -5.2       48.0         370     
LJAC1      UNKNOWN                   TG         723          -12.7       51.5         259     
LNDC1      UNKNOWN                   TG         639           -9.3       51.6         344     
LPNM4      UNKNOWN                   TG         969           30.7       22.6          12     
MGZP4      UNKNOWN                   TG         733          -60.5       41.9         249     
MHBT2      UNKNOWN                   TG         867          -36.1       36.7         115     
NTBC1      UNKNOWN                   TG         453          -99.7       54.6         529     
NWWH1      UNKNOWN                   TG         669          -26.0       38.1         307     
OBGN6      UNKNOWN                   TG         866           36.4       31.1         114     
OKXC1      UNKNOWN                   TG         361           -8.6       49.1         188     
OMHC1      UNKNOWN                   TG         677           -4.2       52.0         304     
PACF1      UNKNOWN                   TG         107           90.0        5.0           0     
PACT2      UNKNOWN                   TG         696          -33.9       33.8         232     
PCLF1      UNKNOWN                   TG          82           -5.5       34.3          29     
PCNT2      UNKNOWN                   TG         834          -58.3       34.4         105     
PLXA2      UNKNOWN                   TG         671           -7.1       49.4         310     
PORO3      UNKNOWN                   TG         804          -30.7       36.7         177     
PRHH1      UNKNOWN                   TG         703          -38.8       40.3         278     
PSBC1      UNKNOWN                   TG         724           72.4       51.1         258     
PSLC1      UNKNOWN                   TG         631          -74.8       47.9         351     
PTIM4      UNKNOWN                   TG         850          -45.4       36.7         131     
PXOC1      UNKNOWN                   TG         641           -7.0       53.1         341     
RSJT2      UNKNOWN                   TG         659          -16.3       39.1         319     
RTAT2      UNKNOWN                   TG         917          -43.1       32.1          64     
RTYC1      UNKNOWN                   TG         589           -2.8       55.7         393     
TCMW1      UNKNOWN                   TG         695          -73.3       50.9         247     
VDZA2      UNKNOWN                   TG         449         -171.1       55.5         455     
44489                                FB         458           31.0       25.3          34     
46022                                FB        1894           -9.1       44.9        1054     
46027                                FB        2379          -57.0       44.7         571     
46053                                FB        2092            8.3       48.3         852     
46054                                FB        2410           50.9       43.7         531     
46060                                FB         342         -145.1       42.6         149     
46073                                FB         149          158.0       31.1        1102     
46078                                FB        2946          -85.5        0.0           0     
46087                                FB        2089            5.2       42.0         861     
46088                                FB        1186          174.9       48.6        1764     
46092                                FB         292          -84.9       40.7         199     
46121                                FB         267           55.1       31.9          38     
46146                                FB         200          179.8       50.1         287     
46181                                FB         366           13.9       47.3         125     
62124                                FB         480          -30.5       29.3          11     
62140                                FB          17          148.8       33.7          65     
63103                                FB          77           89.0        5.0           0     
23001                                DB         176           40.0       39.9          24     
23003                                DB           8          150.9       25.8         197     
23013                                DB         177           30.3       31.7          16     
23453                                DB         102           32.8       35.2          20     
23491                                DB          96          -86.2        3.7           0     
23497                                DB          86           -7.2       42.9          29     
51304                                DB         486         -173.7        4.7           6     
52003                                DB          50           80.3       10.7           2     
52321                                DB         492           93.3        0.0           0     
                                                                                              
                                                                                              
                         JANUARY   2025                                                       
                    WIND SPEED FOR ALL HOURS                                                  
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
3FZI8      MSC SPLENDIDA             SHP         45            5.2        5.3           2     
AMOHK02    UNKNOWN                   SHP          0            0.0        0.0         129     
C6ZJ3      NORWEGIAN BREAKAWAY       SHP         35            5.2        2.8           0     
GLLU3AN    UNKNOWN                   SHP         21            5.3        3.1           0     
WC5932     WILFRED SYKES             SHP         77           -7.1        2.3           0     
BIGM4      UNKNOWN                   CMN       2952           -6.4        2.5           0     
EROA2      UNKNOWN                   CMN        473            6.1        3.2           0     
ERXA2      UNKNOWN                   CMN       1080            5.9        3.6           0     
PGBP7      UNKNOWN                   CMN       4917           -5.1        1.8           0     
SLVM5      UNKNOWN                   CMN       2721           -6.6        2.5           0     
CHSV3      UNKNOWN                   TG         980           -5.3        2.5           0     
PGBP7      UNKNOWN                   TG         982           -5.2        1.7           0     
                                                                                              
                                                                                              
                         JANUARY   2025                                                       
                SEA SURFACE TEMP. FOR ALL HOURS                                               
                                                                                              
PLATFORM   SHIP/PLAT. NAME           TYPE   NO. REPORTS    MEAN DIFF    SD DIFF    # GROSS ERR
                                                                                              
32ST0      UNKNOWN                   SHP        422           -4.8        0.5           0     
6YDVKBY    UNKNOWN                   SHP         39            5.7        3.3           0     
7KEK       UNKNOWN                   SHP         28            4.5        0.7           0     
9HA4902    MSC BELLISSIMA            SHP         73           -5.7        4.0           1     
9V3912     KN AMETHYST               SHP        459            5.0        1.5           0     
ALGOM03    ALGOMA COMPASS            SHP         65            4.8        5.0           0     
DBHNUYD    UNKNOWN                   SHP         37            9.8        4.6           8     
OXVS2      MAERSK EVORA              SHP         75            4.5        1.1           0     
SBPR       UNKNOWN                   SHP         75            5.1        3.8           0     
SBPT       UNKNOWN                   SHP         79            4.2        3.9           1     
SDIA       UNKNOWN                   SHP         75            4.8        3.5           1     
V7A4788    MARLIN HESTIA             SHP         53           -6.3        2.6           0     
VRNS2      UNKNOWN                   SHP         38            5.0        3.6           3     
VRUZ9      SAGA HORIZON              SHP         31            5.2        1.5           0     
WDC6698    MARCUS G. LANGSETH (AWS)  SHP        443            3.6        6.5          48     
WL3972     HERBERT C. JACKSON (AWS)  SHP        236            5.8        4.1          21     
WTER       NOAA NANCY FOSTER (AWS)   SHP         87           -4.5        4.4           0     
WUR8857    LEE A. TREGURTHA (AWS)    SHP        150            4.4        3.7           4     
WYP8657    JAMES R. BARKER (AWS)     SHP        409            6.6        4.4          20     
ELFA2      UNKNOWN                   CMN       4425            7.2        1.9         137     
MACM4      UNKNOWN                   CMN       3436            7.3        3.9         535     
NWCL1      UNKNOWN                   CMN       4339            3.2        6.1         131     
RSJT2      UNKNOWN                   CMN       4198           -5.3        3.1           0     
AGCM4      UNKNOWN                   TG         959            6.5        4.0          23     
ALXN6      UNKNOWN                   TG         848            8.0        3.6         130     
APAM2      UNKNOWN                   TG         969            4.5        5.1          12     
BLTM2      UNKNOWN                   TG         919            5.3        5.5          43     
BUFN6      UNKNOWN                   TG         887            8.2        3.5          95     
BZST2      UNKNOWN                   TG         981           -5.2        1.4           0     
CASM1      UNKNOWN                   TG         981            5.2        3.7           0     
CAVN6      UNKNOWN                   TG         911            5.1        2.9          71     
CNDO1      UNKNOWN                   TG         686            8.3        2.8          80     
CRVA2      UNKNOWN                   TG         887            5.6        3.6          95     
DTLM4      UNKNOWN                   TG         719            8.0        3.9         262     
DULM5      UNKNOWN                   TG         184           10.9        2.8         397     
EINL1      UNKNOWN                   TG         971           -4.2        2.7           0     
ELFA2      UNKNOWN                   TG         954            7.1        1.8          27     
FPKG1      UNKNOWN                   TG         981            2.6        6.1           0     
HCGN7      UNKNOWN                   TG         870           -9.7        2.3         111     
HLNM4      UNKNOWN                   TG         979            4.1        3.9           0     
HRBM4      UNKNOWN                   TG         942            7.0        3.4          38     
ITKA2      UNKNOWN                   TG         981            6.3        1.8           0     
JNEA2      UNKNOWN                   TG         981            4.0        1.9           0     
KECA2      UNKNOWN                   TG         982            4.4        2.1           0     
LCLL1      UNKNOWN                   TG         950            0.5        6.5          31     
LOPW1      UNKNOWN                   TG         981            4.5        3.3           0     
MACM4      UNKNOWN                   TG         837            7.3        4.0         144     
MNMM4      UNKNOWN                   TG         923            6.8        4.2          60     
MNPV2      UNKNOWN                   TG         248            0.6        1.7         206     
MRCP1      UNKNOWN                   TG         979            4.2        4.6           0     
MRHO1      UNKNOWN                   TG         946            5.1        4.4          35     
NEAW1      UNKNOWN                   TG         982            4.6        1.7           0     
NLHC3      UNKNOWN                   TG         912            4.0        2.0           0     
NMTA2      UNKNOWN                   TG         623            6.1        5.1         359     
OBGN6      UNKNOWN                   TG         874            7.1        4.0         106     
ORIN7      UNKNOWN                   TG         982           -4.7        1.8           0     
PCGT2      UNKNOWN                   TG         975           -5.1        1.8           0     
PCLF1      UNKNOWN                   TG         112           -5.1        1.8           0     
PILL1      UNKNOWN                   TG         982          -10.8        1.2           0     
PNLM4      UNKNOWN                   TG         736            8.4        3.8         244     
PRDA2      UNKNOWN                   TG         413            8.5        4.4         558     
PSTL1      UNKNOWN                   TG         982           -9.8        1.4           0     
PTAW1      UNKNOWN                   TG         981            6.0        2.1           0     
PTIT2      UNKNOWN                   TG         981           -4.2        1.8           0     
PTWW1      UNKNOWN                   TG         982            5.1        1.9           0     
RDDA2      UNKNOWN                   TG         499            5.3        5.1         459     
RDYD1      UNKNOWN                   TG         982            4.2        4.7           0     
RLIT2      UNKNOWN                   TG         979           -4.8        3.4           3     
RSJT2      UNKNOWN                   TG         977           -5.5        3.1           0     
SEIM1      UNKNOWN                   TG         982            4.5        3.8           0     
SHBL1      UNKNOWN                   TG         974           -6.6        2.9           8     
SKTA2      UNKNOWN                   TG         766            9.9        2.2         216     
SWLA2      UNKNOWN                   TG         710            8.1        2.0         272     
TCNW1      UNKNOWN                   TG         982            7.8        2.7           0     
TKPN6      UNKNOWN                   TG         944            4.4        4.9          35     
VDZA2      UNKNOWN                   TG         755            8.6        2.7         226     
YATA2      UNKNOWN                   TG         982            6.2        2.8           0     
44007                                FB        2901            5.4        2.8           0     
44013                                FB        2917            6.2        3.6           0     
44030                                FB         480            5.1        2.8           0     
44041                                FB         881            4.6        3.5           0     
44062                                FB        1051            5.1        2.7           0     
44073                                FB        2515            4.3        2.6           0     
44095                                FB         973           -4.7        2.2           0     
44258                                FB         489            4.1        2.3           0     
45212                                FB          64            4.3        2.6           0     
45215                                FB         351            6.5        2.4           0     
46087                                FB        2880            5.1        1.7           0     
46088                                FB        2913            4.5        1.5           0     
46146                                FB         487            5.8        1.9           0     
46181                                FB         468            9.0        3.0          23     
46267                                FB         984            6.1        2.2           0     
                                                                                              
TOTAL NUMBER OF OBSERVATIONS FOR JANUARY   2025 (EXCLUDING DUPLICATES                         
AND THOSE FROM CALLSIGN 'SHIP') WAS  1259063.  TOTAL NUMBER OF                                
OBSERVATIONS FROM CALLSIGN 'SHIP' (EXCLUDING DUPLICATES) WAS      37.                         
TOTAL NUMBER OF IDS WAS    2395.                                                              
           

Page last modified: 06 March 2025.