Slide2:
Data Flow of Sea Ice Monitoring in JMA GMS
NOAA DMSP SSM/I Coastal RADAR Coastal Observation Aircraft Observation Meteorological Satellite Center NOAA NESDIS Wakkanai, Kitamiesashi, Mombetsu, Abashiri, Nemuro, Kushiro Marine/Land Defense Force, Japan Coast Guard Hokkaido University Sea Ice Section
Japan Meteorological Agency Sea Ice Analysis
Sea Ice Forecast Sapporo District Observatory
Hakodate Marine Observatory Users Fishery
Sight Seeing
Other Nations
Slide3:
Numerical Sea Ice Model
Area ; Southwest edge is located 42N, 140E.
Number of the grid ; 71*71.
Resolution ; 12.5km
Parameters
SST ; Analyzed by NOAA AVHRR (MCSST method),
and GMS
Sea Surface Current ; statistical value
Weather Prediction data ;
RSM(Regional Spectral Model) and
GSM(Global Spectral Model) 6hourly
Equipment
3500/E540PS HITACHI
Slide4:
Sea Ice Monitoring System in JMA(Future Plan) Satellite Observation
GMS，NOAA
Near Real Time
Global Sea Ice Data Forecast of Sea Ice Conditions of Whole Okhotsk Forecast of Sea Ice Conditions near Hokkaido Boundary condition of Climate Prediction Model and Weather Prediction Model Sea Ice Information
Near Hokkaido, Okhotsk and, Global
Statistical Data Arcive Users Web in JMA Data Acquisition Whole Okhotsk Model Coastal Sea Ice Model Sea Ice Analysis in the Coastal Area of Hokkaido Sea Ice Analysis in the Sea of Okhotsk Global Analysis Observation by
Aircraft
Ship DMSP
RADARSAT
ADEOS-Ⅱ Coastal Observation
Slide5:
RADARSAT Data Utilization
1. Purpose
Sea Ice Analysis in detail in the Sea of Okhotsk
For the appropriate initial data for Coastal Sea Ice Model
and Whole Okhotsk Model
Estimation of Sea Ice Thickness ( if possible )
Estimation of Sea Surface Current ( if possible )
2. Requirement in JMA to for RADARSAT data
Every 5 day’s data
Ascending and Descending
ScanSAR Wide mode
4 Scenes a day from December to May
In a year, about 150 scenes are necessary for sea ice monitoring.
Slide6:
Process of Making the initial data for Sea Ice Model Numerical Sea Ice Model Numerical Weather Prediction Sea Surface Temperature
Sea Surface Current Initial Data Sea Ice Concentration/Extent Sea Ice Thickness Forecast Data Sea Ice Concentration/Extent Sea Ice Thickness Analysis At the first time of running the model, sea ice thickness is determined 20cm. Feedback