Present Methods of Data Assimilation in the U.S. Navy's Sea Ice Forecasting Models
The U.S. Navy presently has two sea ice forecasting systems running on a daily operational schedule at the Fleet Numerical Oceanography Center. The first forecast system, the Polar Ice Prediction System (PIPS), covers the Arctic basin, The Barents Sea and the Greenland Sea using 125 km grid resoluti...
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ftdtic:ADA231767 2023-05-15T14:29:14+02:00 Present Methods of Data Assimilation in the U.S. Navy's Sea Ice Forecasting Models Preller, Ruth H. Posey, Pamela G. NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS 1989-10 text/html http://www.dtic.mil/docs/citations/ADA231767 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA231767 en eng http://www.dtic.mil/docs/citations/ADA231767 Approved for public release; distribution is unlimited. DTIC AND NTIS Snow Ice and Permafrost *SEA ICE *ICE FORECASTING *OCEAN MODELS OCEAN CURRENTS PREDICTIONS MODELS FORECASTING ACCURACY DRIFT ICE SCHEDULING CONCENTRATION(COMPOSITION) MEAN TIMELINESS ASSIMILATION HEAT FLUX BARENTS SEA GEOSTROPHIC CURRENTS DAILY OCCURRENCE OCEAN BASINS DEEP OCEANS GREENLAND SEA ARCTIC OCEAN THICKNESS KARA SEA DIGITAL SYSTEMS POLAR REGIONS PE63207N WUDN894428 PIPS(POLAR ICE PREDICTION SYSTEM) RPIPS-B(REGIONAL POLAR ICE PREDICTION SYSTEM- BARENTS) Text 1989 ftdtic 2016-02-22T23:30:24Z The U.S. Navy presently has two sea ice forecasting systems running on a daily operational schedule at the Fleet Numerical Oceanography Center. The first forecast system, the Polar Ice Prediction System (PIPS), covers the Arctic basin, The Barents Sea and the Greenland Sea using 125 km grid resolution. The second model, the Regional Polar Ice Prediction System-Barents (RPIPS-B), cover the Barents Sea and western have of the Kara Sea using 23 km grid resolution. Both models are forced by atmospheric forcing from the Naval Operational Global Atmospheric Prediction System and monthly mean geostrophic ocean currents and deep ocean heat fluxes. The models are run daily making 120 hour forecasts of drift, ice thickness and ice concentration. Both models are updated, once per week, by assimilating digitized concentration data from the Naval Polar Oceanography Center. Accuracy in the digitized data as well as the timeliness of the data shown to have a serious impact on the model forecasts. Text Arctic Basin Arctic Arctic Ocean Barents Sea Greenland Greenland Sea Ice Kara Sea permafrost Sea ice Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean Barents Sea Kara Sea Greenland |
institution |
Open Polar |
collection |
Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Snow Ice and Permafrost *SEA ICE *ICE FORECASTING *OCEAN MODELS OCEAN CURRENTS PREDICTIONS MODELS FORECASTING ACCURACY DRIFT ICE SCHEDULING CONCENTRATION(COMPOSITION) MEAN TIMELINESS ASSIMILATION HEAT FLUX BARENTS SEA GEOSTROPHIC CURRENTS DAILY OCCURRENCE OCEAN BASINS DEEP OCEANS GREENLAND SEA ARCTIC OCEAN THICKNESS KARA SEA DIGITAL SYSTEMS POLAR REGIONS PE63207N WUDN894428 PIPS(POLAR ICE PREDICTION SYSTEM) RPIPS-B(REGIONAL POLAR ICE PREDICTION SYSTEM- BARENTS) |
spellingShingle |
Snow Ice and Permafrost *SEA ICE *ICE FORECASTING *OCEAN MODELS OCEAN CURRENTS PREDICTIONS MODELS FORECASTING ACCURACY DRIFT ICE SCHEDULING CONCENTRATION(COMPOSITION) MEAN TIMELINESS ASSIMILATION HEAT FLUX BARENTS SEA GEOSTROPHIC CURRENTS DAILY OCCURRENCE OCEAN BASINS DEEP OCEANS GREENLAND SEA ARCTIC OCEAN THICKNESS KARA SEA DIGITAL SYSTEMS POLAR REGIONS PE63207N WUDN894428 PIPS(POLAR ICE PREDICTION SYSTEM) RPIPS-B(REGIONAL POLAR ICE PREDICTION SYSTEM- BARENTS) Preller, Ruth H. Posey, Pamela G. Present Methods of Data Assimilation in the U.S. Navy's Sea Ice Forecasting Models |
topic_facet |
Snow Ice and Permafrost *SEA ICE *ICE FORECASTING *OCEAN MODELS OCEAN CURRENTS PREDICTIONS MODELS FORECASTING ACCURACY DRIFT ICE SCHEDULING CONCENTRATION(COMPOSITION) MEAN TIMELINESS ASSIMILATION HEAT FLUX BARENTS SEA GEOSTROPHIC CURRENTS DAILY OCCURRENCE OCEAN BASINS DEEP OCEANS GREENLAND SEA ARCTIC OCEAN THICKNESS KARA SEA DIGITAL SYSTEMS POLAR REGIONS PE63207N WUDN894428 PIPS(POLAR ICE PREDICTION SYSTEM) RPIPS-B(REGIONAL POLAR ICE PREDICTION SYSTEM- BARENTS) |
description |
The U.S. Navy presently has two sea ice forecasting systems running on a daily operational schedule at the Fleet Numerical Oceanography Center. The first forecast system, the Polar Ice Prediction System (PIPS), covers the Arctic basin, The Barents Sea and the Greenland Sea using 125 km grid resolution. The second model, the Regional Polar Ice Prediction System-Barents (RPIPS-B), cover the Barents Sea and western have of the Kara Sea using 23 km grid resolution. Both models are forced by atmospheric forcing from the Naval Operational Global Atmospheric Prediction System and monthly mean geostrophic ocean currents and deep ocean heat fluxes. The models are run daily making 120 hour forecasts of drift, ice thickness and ice concentration. Both models are updated, once per week, by assimilating digitized concentration data from the Naval Polar Oceanography Center. Accuracy in the digitized data as well as the timeliness of the data shown to have a serious impact on the model forecasts. |
author2 |
NAVAL OCEANOGRAPHIC AND ATMOSPHERIC RESEARCH LAB STENNIS SPACE CENTER MS |
format |
Text |
author |
Preller, Ruth H. Posey, Pamela G. |
author_facet |
Preller, Ruth H. Posey, Pamela G. |
author_sort |
Preller, Ruth H. |
title |
Present Methods of Data Assimilation in the U.S. Navy's Sea Ice Forecasting Models |
title_short |
Present Methods of Data Assimilation in the U.S. Navy's Sea Ice Forecasting Models |
title_full |
Present Methods of Data Assimilation in the U.S. Navy's Sea Ice Forecasting Models |
title_fullStr |
Present Methods of Data Assimilation in the U.S. Navy's Sea Ice Forecasting Models |
title_full_unstemmed |
Present Methods of Data Assimilation in the U.S. Navy's Sea Ice Forecasting Models |
title_sort |
present methods of data assimilation in the u.s. navy's sea ice forecasting models |
publishDate |
1989 |
url |
http://www.dtic.mil/docs/citations/ADA231767 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA231767 |
geographic |
Arctic Arctic Ocean Barents Sea Kara Sea Greenland |
geographic_facet |
Arctic Arctic Ocean Barents Sea Kara Sea Greenland |
genre |
Arctic Basin Arctic Arctic Ocean Barents Sea Greenland Greenland Sea Ice Kara Sea permafrost Sea ice |
genre_facet |
Arctic Basin Arctic Arctic Ocean Barents Sea Greenland Greenland Sea Ice Kara Sea permafrost Sea ice |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA231767 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766303301098274816 |