Notes:

• The WMO/AWIPS headers follow the form given for oceanographic data, i.e., AGA₁A₂i₁i₂, where i₁ is 4 and always means spectral wave data.
  

• i₂ is the geographic location, where:

0 - means Pacific Ocean, particularly in proximity to U.S. held islands (Hawaii and Guam's areas of responsibility)
1 - means proximity to NE Atlantic States from Virginia northward
2 - means proximity to SE Atlantic States from North Carolina southward and Puerto Rico
4 - means proximity to southern Gulf of Mexico states
6 - means proximity to Pacific States and southern British Columbia
7 - means proximity to Panhandle of Alaska and northern British Columbia (Juneau's areas of responsibility)
8 - means proximity to southern and southwestern Alaska (Anchorage's areas of responsibility)

• A₁A₂ is used by the originating office (NCEP/NCO) to identify the oceanic area of the point, where:

NT - Western Atlantic
GX - Gulf of Mexico
CA - Caribbean Sea
PZ - Eastern Pacific
GA - Gulf of Alaska
PN - North Pacific including Bering Sea
AC - Arctic Ocean
HW - Hawaiian Waters
PW - Western Pacific
XT - Tropical Belt
PS - South Pacific

• The AWIPS identifier form is NNNxxx: where NNN is OSB - Oceanographic Spectral Bulletin, and xxx takes the form: mnn - where m is the wave model and nn is the number of the point in a given geographic location according to note 2 above. nn can range from 01 - 99.
  

• m is the wave model where:

N is the NOAA WAVEWATCH III global wave model
A is the Alaska Waters regional wave model
W is the Western North Atlantic regional wave model
H is the North Atlantic Hurricane regional wave model
E is the Eastern North Pacific regional wave model
P is the Eastern Pacific Hurricane regional wave model
X is the Western North Pacific regional wave model
T is the Western Pacific Typhoon regional wave model