12 112 1.0 :NSTA NOBC DELT
Section 1: NWLON TIDE GUAGE INFORMATION
SID NOS_ID NWS_ID AGENCY_ID DATUM FLAG TS_FLAG BACKUP_SID GRIDID_STA As GAUGE NAME
1 8651370 DUKN7 NOAA 0.539 0 0 2 1 1.0 Duck, NC
2 8652587 ORIN7 NOAA 0.176 1 0 3 0 1.0 Oregon Inlet Marina, NC
3 8656483 XXXXX NOAA 0.521 1 0 0 0 1.0 Beaufort, NC
4 8570283 OCIM2 NOAA 0.396 0 0 5 106 1.0 Ocean City Inlet, MD
5 8534720 ACYN4 NOAA 0.675 1 0 6 0 1.0 Atlantic City, NJ
6 8531680 XXXXX NOAA 0.785 1 0 0 0 1.0 Sandy Hook, NJ
7 8551910 RDYD1 NOAA 0.890 0 0 8 109 1.0 Reedy Point, DE
8 8551762 DELD1 NOAA 0.877 1 0 9 0 1.0 Delaware City, DE
9 8573927 CHCM2 NOAA 0.487 1 0 0 0 1.0 Chesapeake City, MD
10 01482800 XXXXX USGS 0.0 1 1 11 109 1.0 USGS DE River at Reedy Island Jetty, DE
11 01480065 XXXXX USGS 0.0 1 0 12 0 1.0 USGS Christina River at Newport, DE
12 01481500 XXXXX USGS 0.0 1 0 0 0 1.0 USGS Brandywind Creek at Wilmington, DE
SECTION 2: CONFIGURATION OF LATERAL OPEN BOUNDARY
GRIDID IROMS JROMS WL_STA WL_SID_1 WL_S_1 WL_SID_2 WL_S_2 TS_STA T_SID_1 TS_S_1 TS_SID_2 TS_S_2 OBC_ID
1 164 1 2 1 1.000 4 0.000 0 1 1.000 4 1.000 S
2 165 1 2 1 0.991 4 0.009 0 1 1.000 4 1.000 S
3 166 1 2 1 0.976 4 0.024 0 1 1.000 4 1.000 S
4 167 1 2 1 0.957 4 0.043 0 1 1.000 4 1.000 S
5 168 1 2 1 0.939 4 0.061 0 1 1.000 4 1.000 S
6 169 1 2 1 0.920 4 0.080 0 1 1.000 4 1.000 S
7 170 1 2 1 0.902 4 0.098 0 1 1.000 4 1.000 S
8 171 1 2 1 0.884 4 0.116 0 1 1.000 4 1.000 S
9 172 1 2 1 0.865 4 0.135 0 1 1.000 4 1.000 S
10 173 1 2 1 0.850 4 0.150 0 1 1.000 4 1.000 S
11 174 1 2 1 0.839 4 0.161 0 1 1.000 4 1.000 S
12 175 1 2 1 0.829 4 0.171 0 1 1.000 4 1.000 S
13 176 1 2 1 0.819 4 0.181 0 1 1.000 4 1.000 S
14 177 1 2 1 0.811 4 0.189 0 1 1.000 4 1.000 S
15 178 1 2 1 0.803 4 0.197 0 1 1.000 4 1.000 S
16 179 1 2 1 0.796 4 0.204 0 1 1.000 4 1.000 S
17 180 1 2 1 0.790 4 0.210 0 1 1.000 4 1.000 S
18 181 1 2 1 0.783 4 0.217 0 1 1.000 4 1.000 S
19 182 1 2 1 0.777 4 0.223 0 1 1.000 4 1.000 S
20 183 1 2 1 0.771 4 0.229 0 1 1.000 4 1.000 S
21 184 1 2 1 0.765 4 0.235 0 1 1.000 4 1.000 S
22 185 1 2 1 0.758 4 0.242 0 1 1.000 4 1.000 S
23 186 1 2 1 0.751 4 0.249 0 1 1.000 4 1.000 S
24 187 1 2 1 0.743 4 0.257 0 1 1.000 4 1.000 S
25 188 1 2 1 0.735 4 0.265 0 1 1.000 4 1.000 S
26 189 1 2 1 0.726 4 0.274 0 1 1.000 4 1.000 S
27 190 1 2 1 0.716 4 0.284 0 1 1.000 4 1.000 S
28 191 1 2 1 0.707 4 0.293 0 1 1.000 4 1.000 S
29 192 1 2 1 0.699 4 0.301 0 1 1.000 4 1.000 S
30 193 1 2 1 0.692 4 0.308 0 1 1.000 4 1.000 S
31 194 1 2 1 0.684 4 0.316 0 1 1.000 4 1.000 S
32 195 1 2 1 0.673 4 0.327 0 1 1.000 4 1.000 S
33 196 1 2 1 0.662 4 0.338 0 1 1.000 4 1.000 S
34 197 1 2 1 0.655 4 0.345 0 1 1.000 4 1.000 S
35 198 1 2 1 0.643 4 0.357 0 1 1.000 4 1.000 S
36 199 1 2 1 0.625 4 0.375 0 1 1.000 4 1.000 S
37 200 1 2 1 0.607 4 0.393 0 1 1.000 4 1.000 S
38 201 1 2 1 0.590 4 0.410 0 1 1.000 4 1.000 S
39 202 1 2 1 0.574 4 0.426 0 1 1.000 4 1.000 S
40 203 1 2 1 0.561 4 0.439 0 1 1.000 4 1.000 S
41 204 1 2 1 0.552 4 0.448 0 1 1.000 4 1.000 S
42 205 1 2 1 0.544 4 0.456 0 1 1.000 4 1.000 S
43 206 1 2 1 0.537 4 0.463 0 1 1.000 4 1.000 S
44 207 1 2 1 0.531 4 0.469 0 1 1.000 4 1.000 S
45 208 1 2 1 0.526 4 0.474 0 1 1.000 4 1.000 S
46 209 1 2 1 0.521 4 0.479 0 1 1.000 4 1.000 S
47 210 1 2 1 0.517 4 0.483 0 1 1.000 4 1.000 S
48 211 1 2 1 0.512 4 0.488 0 1 1.000 4 1.000 S
49 212 1 2 1 0.508 4 0.492 0 1 1.000 4 1.000 S
50 213 1 2 1 0.504 4 0.496 0 1 1.000 4 1.000 S
51 214 1 2 1 0.500 4 0.500 0 1 1.000 4 1.000 S
52 215 1 2 1 0.496 4 0.504 0 1 1.000 4 1.000 S
53 216 1 2 1 0.493 4 0.507 0 1 1.000 4 1.000 S
54 217 1 2 1 0.489 4 0.511 0 1 1.000 4 1.000 S
55 218 1 2 1 0.485 4 0.515 0 1 1.000 4 1.000 S
56 219 1 2 1 0.481 4 0.519 0 1 1.000 4 1.000 S
57 220 1 2 1 0.478 4 0.522 0 1 1.000 4 1.000 S
58 221 1 2 1 0.474 4 0.526 0 1 1.000 4 1.000 S
59 222 1 2 1 0.470 4 0.530 0 1 1.000 4 1.000 S
60 223 1 2 1 0.466 4 0.534 0 1 1.000 4 1.000 S
61 224 1 2 1 0.463 4 0.537 0 1 1.000 4 1.000 S
62 225 1 2 1 0.459 4 0.541 0 1 1.000 4 1.000 S
63 226 1 2 1 0.455 4 0.545 0 1 1.000 4 1.000 S
64 227 1 2 1 0.451 4 0.549 0 1 1.000 4 1.000 S
65 228 1 2 1 0.447 4 0.553 0 1 1.000 4 1.000 S
66 229 1 2 1 0.443 4 0.557 0 1 1.000 4 1.000 S
67 230 1 2 1 0.438 4 0.562 0 1 1.000 4 1.000 S
68 231 1 2 1 0.433 4 0.567 0 1 1.000 4 1.000 S
69 232 1 2 1 0.427 4 0.573 0 1 1.000 4 1.000 S
70 233 1 2 1 0.420 4 0.580 0 1 1.000 4 1.000 S
71 234 1 2 1 0.414 4 0.586 0 1 1.000 4 1.000 S
72 235 1 2 1 0.410 4 0.590 0 1 1.000 4 1.000 S
73 236 1 2 1 0.405 4 0.595 0 1 1.000 4 1.000 S
74 237 1 2 1 0.399 4 0.601 0 1 1.000 4 1.000 S
75 238 1 2 1 0.391 4 0.609 0 1 1.000 4 1.000 S
76 239 1 2 1 0.383 4 0.617 0 1 1.000 4 1.000 S
77 240 1 2 1 0.370 4 0.630 0 1 1.000 4 1.000 S
78 241 1 2 1 0.352 4 0.648 0 1 1.000 4 1.000 S
79 242 1 2 1 0.336 4 0.664 0 1 1.000 4 1.000 S
80 243 1 2 1 0.320 4 0.680 0 1 1.000 4 1.000 S
81 244 1 2 1 0.306 4 0.694 0 1 1.000 4 1.000 S
82 245 1 2 1 0.292 4 0.708 0 1 1.000 4 1.000 S
83 246 1 2 1 0.278 4 0.722 0 1 1.000 4 1.000 S
84 247 1 2 1 0.265 4 0.735 0 1 1.000 4 1.000 S
85 248 1 2 1 0.251 4 0.749 0 1 1.000 4 1.000 S
86 249 1 2 1 0.238 4 0.762 0 1 1.000 4 1.000 S
87 250 1 2 1 0.225 4 0.775 0 1 1.000 4 1.000 S
88 251 1 2 1 0.212 4 0.788 0 1 1.000 4 1.000 S
89 252 1 2 1 0.199 4 0.801 0 1 1.000 4 1.000 S
90 253 1 2 1 0.186 4 0.814 0 1 1.000 4 1.000 S
91 254 1 2 1 0.173 4 0.827 0 1 1.000 4 1.000 S
92 255 1 2 1 0.159 4 0.841 0 1 1.000 4 1.000 S
93 256 1 2 1 0.146 4 0.854 0 1 1.000 4 1.000 S
94 257 1 2 1 0.134 4 0.866 0 1 1.000 4 1.000 S
95 258 1 2 1 0.121 4 0.879 0 1 1.000 4 1.000 S
96 259 1 2 1 0.109 4 0.891 0 1 1.000 4 1.000 S
97 260 1 2 1 0.097 4 0.903 0 1 1.000 4 1.000 S
98 261 1 2 1 0.086 4 0.914 0 1 1.000 4 1.000 S
99 262 1 2 1 0.076 4 0.924 0 1 1.000 4 1.000 S
100 263 1 2 1 0.062 4 0.938 0 1 1.000 4 1.000 S
101 264 1 2 1 0.047 4 0.953 0 1 1.000 4 1.000 S
102 265 1 2 1 0.034 4 0.966 0 1 1.000 4 1.000 S
103 266 1 2 1 0.022 4 0.978 0 1 1.000 4 1.000 S
104 267 1 2 1 0.013 4 0.987 0 1 1.000 4 1.000 S
105 268 1 2 1 0.006 4 0.994 0 1 1.000 4 1.000 S
106 269 1 2 1 0.000 4 1.000 0 1 1.000 4 1.000 S
107 332 280 1 7 1.000 7 1.000 1 10 1.000 7 1.000 E
108 332 281 1 7 1.000 7 1.000 1 10 1.000 7 1.000 E
109 332 282 1 7 1.000 7 1.000 1 10 1.000 7 1.000 E
110 332 283 1 7 1.000 7 1.000 1 10 1.000 7 1.000 E
111 332 284 1 7 1.000 7 1.000 1 10 1.000 7 1.000 E
112 332 285 1 7 1.000 7 1.000 1 10 1.000 7 1.000 E
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GLOSSARY:
NSTA : Total number of observation/climatology stations
NOBC : Total number of ocean model open boundary grid points
DELT : Time interval to final open boundary condition time series
SECTION 1: NWLON TIDE GUAGE INFORMATION
SID : sequential number of observational station
NWLON_ID : NWLON/PORTS tide gauge ID(NWLON, BUOY, CMAN, USGS,etc.)
NWS_ID : NWS SHEF ID which is used to extract real time data from NWS BUFR files
DATUM : Datum to convert water level from MLLW to MSL
FLAG : indicator of it is a primary or backup station,
=0, used as a primary station for WL OBC correction using real time observations
=1, used as a backup station for WL OBC correction using real time observations
TS_FLAG : indicator of whether it is used for T/S boundary condition,
=0, no T/S data are used;
=1, real time T/S obs are used to specify T/S open boundary conditions;
climatology is automatically used if no real time is available;
=2, use static historical data set to specify T/S open boundary conditions.
if TS_FLAG > 0, T/S climatology have to be specified.
BACKUP_SID: SID of backup station for this station. The real time obs at BACKUP_SID
is used to this station. If BACKUP_SID <=0, there is no backup for this station.
For instance for DBOFS, Atlantic City's backup station is Cape May (BACKUP_SID=4)
GRIDID_STA : GRIDID of open boundary grid point in Section 2 which the observation gauge
corresponds to. From GRIDID_STA, IROMS and JROMS can be found in Section 2
GRIDID_STA <= 0 means the station is out of model domain.
For a primary station, GRIDID_STA must be a GRIDID listed in Section 2.
For a backup station, GRIDID_STA can be same as its primary station, and
may not be used.
Then the difference between obs and ETSS is computed as,
diff (error) = Observed SWL (SID) - ETSS(GRIDID_STA)
Currently, Harmonic constants from COOPS (in "fix" directory) are used for tide prediction
IMODEL and JMODEL might be used to extract Harmonic constants from tidal forcing file
of ROMS for purpose of detide.
As : correlation coefficient between primary and backup stations, or scaling factor to project SWL
from backup station to primary station.
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SECTION 2: CONFIGURATION OF LATERAL OPEN BOUNDARY
GRIDID : sequential number of open boundary grid
IROMS : grid index along XI direction of ROMS
JROMS : grid index along ETA direction of ROMS
WL_STA : Number of observed stations used for correction of water level OBC,
=0, no correction by observations, use data source of DBASE_WL
=1, correct OBC generated from data source DBASE_WL by observations
from one guage station,therefore,the correction at this grid is,
correction=obs_1 * WL_S_1
=2, correct OBC generated from data source DBASE_WL by observations from
two guage stations,therefore,the correction at this grid is,
correction=obs_1 * WL_S_1 + obs_2 * WL_S_2
WL_SID_1 : SID (first column in Section 1) of first gauge station
WL_SID_2 : SID (first column in Section 1) of second gauge station, it is dummy if WL_STA=1
WL_S_1 : scale factor to multiple observation at first gauge
WL_S_2 : scale factor to multiple observation at second gauge
TS_STA : Number of observed stations used for correction of T & S OBC,
=0, use data source of DBASE_TS, no correction by observations
=1, use data source of DBASE_TS, but corrected by observations from
one guage station,therefore,the correction at this grid is,
correction=obs_1 * T_S_1
=2, use data source of DBASE_TS, but corrected by observations from
two guage stations,therefore,the correction at this grid is,
correction=obs_1 * T_S_1 + obs_2 * T_S_2
TS_SID_1 : SID (first column in Section 1) of first gauge station
TS_SID_2 : SID (first column in Section 1) of second gauge station
TS_S_1 : scale factor to multiple observation at first gauge
TS_S_2 : scale factor to multiple observation at second gauge
OBC_ID : indicate which side of OB: "S" for southern open boundary; "N" for northern
open boundary; "W" for western open boundary; "E" for eastern open boundary.
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NOTES
1. For interpolation, all open points are treated in same way no mater whichever boundary the point is on.
Then using OBC_ID assign to corresponding boundary variables (e.g. zeta_south, temp_south, and so on)
2. Then the difference between observation and ETSS is computed as,
diff (error) = Observed SWL (SID) - ETSS(GRIDID_STA)