GRIB2 - PRODUCT DEFINITION TEMPLATE 4.52

Analysis or Forecast of Wave Parameters
at the Sea Surface at a point in time

Created 02/15/2012
VALIDATION

Notes:  VALIDATION means the corresponding entry is not yet
official and could change at any time, so it should not be used for any official products.


Octet No. Contents
10
Parameter category (see Code Table 4.1)
11
Parameter number (see Code Table 4.2)
12 Wind-generated wave spectral description (see Code Table 4.235)
13 Total number of partions (p)
14 Number of current partion (N, where N=1,2,...,P)
15 Type of generating process (see Code Table 4.3)
16 Background generating process identifier (defined by originating centre)
17 Forecast generating process identifier (see Code ON388 Table A)
18-19
Hours after reference time data cutoff (see Note 1)
20 Minutes after reference time data cutoff
21 Indicator of unit of time range (see Code Table 4.4)
22-25 Forecast time in units defined by octet 21
26 Type of fixed surface (see Code table 4.5)
27 Scale factor of fixed surface
28-31 Scaled value of fixed surface


Notes:

(1) Hours greater than 65534 will be coded as 65534.
(2) If the value of octet 12 is set to 0,then the value of octet 13 should be set to 1.



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