NWW3 Wave Model Changes
The content provided on this page supports model
development. These are not official NWS products and
should not be relied upon for operational purposes. This
web site is not subject to 24/7 support, and thus may be
unavailable during system outages.
Operationally generated graphics of the wave fields (no
spectra or source terms) are available from
Model Analyses and Guidance.
Bulletin files are available from the
Production FTP/HTTPS server.
Look for gfs.YYYYMMDD/CC/wave/station/bulls.tCCz/gfswave.stationID.bull
2007
2006
2005
2004
2003
2002
2001
2000
1999
1998
1997
2007
- September 18, 2007
- Operational implementation of the multigrid version of the
WAVEWATCH III® model. Changes to the model are documented in the
NOAA Technical Implementation Notice 07-51.
Major overhaul of the WAVEWATCH III® website to support the new model.
2006
- August 21, 2006
- Operational implementation of Great Lakes (GRL) waves model.
- August 1, 2006
- Adding buoy 44027 to WNA and NAH models.
- July 25, 2006
-
Added points MFR51 through MFR63 to ENP and NPH models (ftp site only).
- June 30, 2006
-
Experimental Great Lakes Waves web site opened to the public.
- May 30, 2006
-
Capping the drag coeffcient to 0.0025 for more realistic stresses and wave
growth in extreme wind conditions. This impacts wave growth in Hurricane
conditions only.
- April 14, 2006
- First EGOWaFS web page openend to the public.
- March 28, 2006
-
Operational implementation of the Ensemble GLobal Operational Wave Forecast
System (EGOWaFS).
2005
- November 15, 2005
-
Time resolution of NAH model GRIB files set to 1h (was 3h).
- August 10, 2005
-
Adding point 46089 to the ENP and NPH models. Adding points 41040, 41041,
41100, 41101, 42055, 42056, 42057 and 42058 to WNA and NAH models.
- June 2, 2005
- Adding point WRB07 to the WNA and NAH models.
- May 31, 2005
-
Adaptation of NOAA WAVEWATCH III® wave model suite to new GFS atmospheric model resolution
of T382.
2004
- November 3, 2004
-
Data added to AWIPS for output points: 46087, NEWGUINE_S, GYX01, MIA01,
MIA02, MLB01, OPCP01 through OPCP13 and OPCA01 through OPCA09.
- September 15, 2004
-
Inclusion of links to grid preprocessor input files, bathymetric grids and
obstructions grids via the implementations page in the NOAA WAVEWATCH III® web site.
- September 9, 2004
-
Buoy/output point changes/updates: Buoy 42001 repositioned according to NDBC
specifications for redeployment. New output points added: buoy 46087 (Juan de
Fuca strait: ENP/NPH), NEWGUINE_S (South of New Guinea: GLOBAL), GYX01
(Portland/Gray, ME: WNA/NAH).
- September 9, 2004
-
Forecast range of hurricane-generated wave models (NAH and NPH) extended to
126h. Affects field outputs on web only and point outputs on web and AWIPS.
- September 1, 2004
-
Blending package in NAH and NPH hurricane-generated wave models upgraded to
improve/correct blending of multiple simultaneous GFDL model runs to GFS
winds.
- July 13, 2004
-
Forecast range of model data available on AWIPS extended to 180h. All models
except hurricane-generated wave models NAH and NPH.
- June 21, 2004
-
Web-browser access to point output bulletins changed from ftp to http
protocol on text and tabular data interfaces.
- June 8, 2004
-
Buoy 44141 repositioned according to Environment Canada specifications for
redeployment.
- June 1, 2004
-
Changes to hurricane-generated wave models (NAH and NPH): refraction time
step reduced from 3600 to 1800 sec (corrects numerical noise in nearshore
areas); averaging parameter for aleviation of garden sprinkler effect
increased from 2.0 to 4.0.
- April 28, 2004
-
Adding output points MIA01, MIA02, MLB01 and JAX02 to WNA and NAH models.
- April 28, 2004
-
Adding 13 output points OPCP01 through OPCP13 to ENP and NPH models.
- April 28, 2004
-
Adding 9 output points OPCA01 through OPCA09 to WNA and NAH models.
- March 12, 2004
-
Implementation of new look onto NOAA WAVEWATCH III® web site.
- March 2, 2004
-
adding data assimilation of buoy and ERS2 altimeter data into global model.
- March 2, 2004
-
Extending forecast horizon of NOAA WAVEWATCH III®, AKW WNA and ENP models to 180h. (March 10, 2004: on web site)
- Feb. 24, 2004
-
Adding buoy 46086 to ENP and NPH models. Adding buoys 42041 and 41013 and
output points EYW01 and EYW02 to WNA and NAH models. (Web site only.)
2003
- Sep. 22, 2003
-
Placed WNA and NAH data for 44018 , BOX01 and CAR01 back on AWIPS. These
data points had accidentally been dropped from AWIPS on July 29. The data were
available on the web site for this period.
- Aug. 12, 2003
-
Operational implementation of NPH model. NPH data has been added to the
operational web page on Aug. 13, and is scheduled for removal from the
experimental page in the middle of September.
- July 29, 2003
-
Replacing defunct station DSLN7 with its NDBC replacement 41025 in WNA and
NAH models (web and AWIPS). Adding buoy 46015 to ENP model (web site only).
- July 8, 2003
-
Adding output point 62001 to global model (web only)
- June 10, 2003
-
Add point SGX01 to ENP model, replacing old SAN_DIEGO point from global model.
- May 12, 2003
-
Making four cycles per day official by adding 06z and 18z product generation
to SBN data stream. Extending forecast horizon of all models except NAH to 7
days. Removing temporary output points at west coast from global model
(SAN_DIEGO, SM_BASIN, CONCEPTION, SAN_MARTIN, MONTEREY, PT_REYES, PT_ARENA,
MENDOCINO, BLANCO, COLUMBIA and FLATTERY). All these output points are
superseded by NDBC buoy locations resolved by the ENP model. Adding SBN GRIB
transmission for ENP model. Updating SBN headers for bulletins in AWIPS.
Removing typographical error from bulletins.
- April 29, 2003
-
Reopen experimental pages with NPH model and global model with data assimilation.
- Feb. 18, 2003
-
Add new NDBC buoy location 46080 and 46082 to AKW and ENP models. Add point
CAR01 to NAH and WNA models (web site only as of Feb. 19).
2002
- Nov. 20, 2002
-
Replace WFO output point OKX01 with new NDBC buoy location 44017. Buoy
44017 will replace OKX01 on AWIPS directly, using the same header.
- Oct. 29, 2002
-
Upgrade of atmospheric model to higher resolution of T254L64. This system
is now called the Global Forecast System or GFS.
- Oct. 8, 2002
-
Adding buoy 44018 and point BOX01 to WNA and NAH model. Adding point HNL12 to
ENP model. Adding points MIDWAY, FF_SHOALS, JOHNSTON, NAURU, TARAWA,
FUNAFUTI, NUKUNONO, PAPEETE, RAROTONGA, NIUE, TONGATAPU, NADI, PORT_VILA and
NOUMEA to NOAA WAVEWATCH III® model. Position of buoy 42002 updated in NOAA WAVEWATCH III®, WNA and NAH
models.
- Sept. 25 through Oct. 7, 2002
-
Updating historical data with results of
WAVEWATCH III version 2.22.
Adding ENP model to historical data site.
- Sept. 24, 2002
-
Going to running the model four times per day (00z, 06z, 12z and 18z
cycles). Hindcasts in text products and maps now only go back 6 hours previous
to hindcast. GRIB output interval remains at 3 hours.
- Aug. 13, 2002
-
Changing to WAVEWATCH III version 2.22 for
all models and extendig ENP domain to 60.5°N,
with following changes to output points:
-
Point JAX01 in the WNA and NAH model replaced by NDBC buoy 41012 (same AWIPS
header). Point 46003 in NOAA WAVEWATCH III® and AKW model removed (replacement point 46066
introduced earlier). Point OAHU in NOAA WAVEWATCH III® removed (replaced by HNL points in
ENP as introduced earlier). Added buoy 46072 to AKW model and buoy 46084 to
AKW and ENP models.
-
Changed some island output points in Pacific. These points were all centered
at non-resolved islands. Because these islands are now treated at a sub-grid
level, some output points need to be moved, if the obstruction at the
surrounding grid points is notable. These changes are considered to be
temporarily, and final changes to the output points will be addressed after
further discussion with the regional WFOs.
- GUAM: Moved to 143.75°E 12.00°N
- SAIPAN: Moved to 147.50°E 16.00°N
- PALAU: Moved to 136.25°E 9.00°N
- CHUUK: Moved to 152.50°E 8.00°N
- POHNPEI: Moved to 157.50°E 7.00°N
- MAJURO: Moved to 171.25°E 8.00°N
- ENEWETAK: Moved to 163.75°E 13.00°N
- PAGO_PAGO: Moved to 168.75°W 15.00°S
- June 26, 2002
-
Start of display of the model results with the WAVEWATCH III version 2.22 on
the experimental page.
- June 25, 2002
-
Restart NAH model with hourly GFDL wind fields and modified blending scheme.
- June 25, 2002
-
Update all AWIPS bulletin headers, including bulletins for locations
previously not send .
- June 20, 2002
-
ENP model moved to operational web page. Experimental web page disabled for
rebuilding.
- April 30, 2002
-
Operational implementation of ENP model (except for SBN transmissions).
Until further notice, this model will remain on the experimental page.
- March 19, 2002
-
Add output point 46066 to NOAA WAVEWATCH III® and AKW to replace 46003.
- Feb. 26, 2002
-
Add TPC output points to NOAA WAVEWATCH III® model, buoy 46083 to AKW model, and TPC
output points to WNA/NAH model (web site only).
2001
- Oct. 30, 2001
-
Modified array sizes in several executables and added output of additional
boundary data in preparation for internal implementation of ENP model.
- Sept. 17, 2001
-
ENP experimental model made available to public.
- Aug. 30, 2001
-
NAH model completely removed from experimental page, start of testing ENP
model on experimental page as inhouse model.
- Aug. 30, 2001
-
OKX01 and CHS01 output points added to WNA and NAH model (web site only).
- July 30, 2001
-
NAH model moved from experimental to operational web pages.
- June 20, 2001
-
Addition of output points JAX01, ILM01 and ILM02 to WNA model and web page.
Addition to SBN/AWIPS will follow later.
- June 20, 2001
-
Operational implementation of NAH model. Includes AWIPS GRIB messages,(to be
available in AWIPS build 5.2.1). Text bulletins for AWIPS will follow later.
- June 5, 2001
-
Add 72-120h GRIB fields for NOAA WAVEWATCH III®, AKW and WNA model to SBN transmissions
(to be available in AWIPS 5.1.2).
- May 29, 2001
-
Add bulletin files of all models to SBN / AWIPS (to be available in AWIPS 5.1.1).
- May 24, 2001
-
North Atlantic Hurricane (NAH) wave model approved for operational implementation.
- Feb. 28, 2001
-
Added selected hurricane model results (NAH) to historical archive.
- Feb. 13, 2001
-
Start producing compressed format bulletins for future inclusion in AWIPS
(now internal NCEP use only).
- Jan. 10, 2001
-
Moved output locations 42039 and 42040 in WNA model.
2000
- Dec. 28, 2000
-
Fixed year 2001 rollover bug.
- Dec. 5, 2000
-
Operations shifted from phase 1 IBM RS6000 SP to phase 2 IBM RS6000 SP.
- Nov. 1, 2000
-
Added output point AGULHAS_FA to NOAA WAVEWATCH III® model.
- Aug. 22, 2000
-
CGI version of interactive data page replaced by JavaScript version to
reduce work loads on our web server.
- Aug. 21, 2000
-
Experimental hurricane wave model web
pages opened to public.
- Aug. 20, 2000
-
Validation pages for AKW and WNA
model, and historical data archive added to web pages.
- Aug. 8, 2000
-
Shifted output location 42019 in WNA model from 95.0W to 95.4W after
similar change in buoy location after buoy was redeployed by NDBC.
- July 31, 2000
-
Compressed postscript graphics removed from web page (large resource sink,
negligible usage).
- July 3, 2000
-
Addition of output points for Puerto Rico in WNA model, and for Brazilian
coast in NOAA WAVEWATCH III® model.
- May 31, 2000
-
Extend forecast for all models to 126h, increase time resolution of GRIB
files to 3h.
- May 10, 2000
-
Bug fix for re-initializing wave field after prolonged calm
(seeding algorithm). Reduction of
bottom friction by factor 2 for NOAA WAVEWATCH III® and AKW and by a
factor 4 for WNA.
- March 31, 2000
-
Wind field plots added to all views on web page.
- March 9, 2000
-
OSO / SBN data transmision switched from old WAM models to new NOAA WAVEWATCH III® models.
- Jan. 28-31, 2000
-
The old experimental web page has been shut down, and now is fully replaced
by the present web page.
- Jan. 24, 2000
-
Spectral resolution of GDAS and AVN wind fields increased to T170.
- Jan. 18, 2000
-
IBM computer on which this model has been running accepted for operational use.
1999
Dec. 20, 1999
Added several Tropical Pacific output points to the global model, removed
error in boundary data transfer to regional models.
Sep. 27 - Oct. 26 1999
No model results and/or validation results available .
All models are temporarily shut down due to physical move of computer to new facility.
Aug. 18, 1999
Western North Atlantic (WNA) regional model approved for operational implementation.
Aug. 9, 1999
Present web pages made available to public.
June 1999
Global and regional wave models (AKW, WNA) internally implemented on the
IBM RS6000 SP.
May 23, 1999
Alaskan Waters (AKW) regional model approved for operational implementation.
1998
- July 1, 1998
-
Global model approved for operational implementation on new class VIII
computer system.
1997
- Jan. 27, 1997
-
Start of continuous forecasts with parallel version of the global model.
Validation results for the global model are available from this date.
Notes
Changes implemented at 12z cycles
NCO: NCEP Central Operations