Oceans
GOSAT-GW/AMSR3 L3 Sea Ice Concentration (EQR, 0.10 deg, 1-Day) dataset is obtained from the AMSR3 sensor onboard GOSAT-GW and produced by the Japan Aerospace Exploration Agency (JAXA).GOSAT-GW was launched by the H-IIA Launch Vehicle No. 50 (H-IIA 50) at 01:33 a.m. on Jun 29th, 2025 (Japan Standard Time, JST). GOSAT-GW equipped with AMSR3 takes measurements at multiple microwave frequencies and multiple polarizations of weak electromagnetic waves in the microwave band radiated from the Earthâs surface and the atmosphere. AMSR3 has swath of 1535 km and 11 microwave bands. The observation data will enable the creation of long-term trustworthy data sets of global physical amount.Level 3 products are gridded data. They store the brightness tempreture or physical parameters data converted using grid processing and temporally statical processing.This product includes averaged Sea Ice Concentration (SIC). SIC product stores percentage of sea ice coverage within target ocean area. There is no sea ice within pixel area when sea ice concentration is 0%, and all pixel area is covered by sea ice when it shows 100%. We can learn distribution of sea ice immediately using this product, and it become more and more important because of recent decrease of Arctic sea ice cover.The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is [%]. The generation unit is global. The sampling resolution is 0.10 deg. The projection method is EQR.
GOSAT-GW/AMSR3 L3 Sea Ice Concentration (1-Day,0.10deg,EQR)
The users are entitled to use, reprocess and redistribute G-Portal data including commercial use for free except for the condition about acknowledgement of data credit as stipulated in G-Portal terms of use 7.(2). Click [here](https://gportal.jaxa.jp/gpr/index/eula?lang=en) for detailed G-Portal data usage constrains.
EARTH SCIENCE>OCEANS
EARTH SCIENCE>CRYOSPHERE>SEA ICE
EARTH SCIENCE>CRYOSPHERE
EARTH SCIENCE>OCEANS>SEA ICE>SEA ICE CONCENTRATION
No constraints but users need to be registered with [the G-Portal User Registration system](https://gportal.jaxa.jp/gpr/user/regist1?lang=en) to download files.
EARTH SCIENCE
OCEANS
SEA ICE
CRYOSPHERE
SEA ICE CONCENTRATION
GOSAT-GW
Japan Aerospace Exploration Agency (JAXA)
JAPAN
JP/JAXA/SAOC

Climatology Meteorology Atmosphere
GOSAT-GW/AMSR3 L3 Precipitation (EQR, 0.25 deg, 1-Day) dataset is obtained from the AMSR3 sensor onboard GOSAT-GW and produced by the Japan Aerospace Exploration Agency (JAXA).GOSAT-GW was launched by the H-IIA Launch Vehicle No. 50 (H-IIA 50) at 01:33 a.m. on Jun 29th, 2025 (Japan Standard Time, JST). GOSAT-GW equipped with AMSR3 takes measurements at multiple microwave frequencies and multiple polarizations of weak electromagnetic waves in the microwave band radiated from the Earthâs surface and the atmosphere. AMSR3 has swath of 1535 km and 11 microwave bands. The observation data will enable the creation of long-term trustworthy data sets of global physical amount.Level 3 products are gridded data. They store the brightness tempreture or physical parameters data converted using grid processing and temporally statical processing.This product includes Precipitation (PRC) overwritten by latest data. Although "precipitation" is usually defined as amount of water, which reaches the surface of the earth from atmosphere as rain and/or snow, microwave imager's precipitation products provide amount of rain (surface rainfall). Accuracy of rainfall estimate over land, however, tends to be lower than that over the ocean. Method of rainfall estimate used in AMSR3 precipitation product is also applied to "Global Rainfall Watch" system, which distributes global rainfall map in near-real-time.The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is [mm/h]. The generation unit is global. The sampling resolution is 0.25 deg. The projection method is EQR.
GOSAT-GW/AMSR3 L3 Precipitation (1-Day,0.25deg,EQR)
The users are entitled to use, reprocess and redistribute G-Portal data including commercial use for free except for the condition about acknowledgement of data credit as stipulated in G-Portal terms of use 7.(2). Click [here](https://gportal.jaxa.jp/gpr/index/eula?lang=en) for detailed G-Portal data usage constrains.
EARTH SCIENCE>ATMOSPHERE
EARTH SCIENCE>ATMOSPHERE>PRECIPITATION
EARTH SCIENCE>ATMOSPHERE>PRECIPITATION>PRECIPITATION AMOUNT
No constraints but users need to be registered with [the G-Portal User Registration system](https://gportal.jaxa.jp/gpr/user/regist1?lang=en) to download files.
EARTH SCIENCE
ATMOSPHERE
PRECIPITATION
PRECIPITATION AMOUNT
GOSAT-GW
Japan Aerospace Exploration Agency (JAXA)
JAPAN
JP/JAXA/SAOC

Oceans
GOSAT-GW/AMSR3 L3 Sea Ice Concentration (EG, 25 km, 1-Month) dataset is obtained from the AMSR3 sensor onboard GOSAT-GW and produced by the Japan Aerospace Exploration Agency (JAXA).GOSAT-GW was launched by the H-IIA Launch Vehicle No. 50 (H-IIA 50) at 01:33 a.m. on Jun 29th, 2025 (Japan Standard Time, JST). GOSAT-GW equipped with AMSR3 takes measurements at multiple microwave frequencies and multiple polarizations of weak electromagnetic waves in the microwave band radiated from the Earthâs surface and the atmosphere. AMSR3 has swath of 1535 km and 11 microwave bands. The observation data will enable the creation of long-term trustworthy data sets of global physical amount.Level 3 products are gridded data. They store the brightness tempreture or physical parameters data converted using grid processing and temporally statical processing.This product includes monthly mean Sea Ice Concentration (SIC). SIC product stores percentage of sea ice coverage within target ocean area. There is no sea ice within pixel area when sea ice concentration is 0%, and all pixel area is covered by sea ice when it shows 100%. We can learn distribution of sea ice immediately using this product, and it become more and more important because of recent decrease of Arctic sea ice cover.The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is [%]. The generation unit is global. The sampling resolution is 25 km. The projection method is EG.
GOSAT-GW/AMSR3 L3 Sea Ice Concentration (1-Month,25km,EG)
The users are entitled to use, reprocess and redistribute G-Portal data including commercial use for free except for the condition about acknowledgement of data credit as stipulated in G-Portal terms of use 7.(2). Click [here](https://gportal.jaxa.jp/gpr/index/eula?lang=en) for detailed G-Portal data usage constrains.
EARTH SCIENCE>OCEANS
EARTH SCIENCE>CRYOSPHERE>SEA ICE
EARTH SCIENCE>CRYOSPHERE
EARTH SCIENCE>OCEANS>SEA ICE>SEA ICE CONCENTRATION
No constraints but users need to be registered with [the G-Portal User Registration system](https://gportal.jaxa.jp/gpr/user/regist1?lang=en) to download files.
EARTH SCIENCE
OCEANS
SEA ICE
CRYOSPHERE
SEA ICE CONCENTRATION
GOSAT-GW
Japan Aerospace Exploration Agency (JAXA)
JAPAN
JP/JAXA/SAOC

Geoscientific Information
GOSAT-GW/AMSR3 L3 Soil Moisture Content (PS, 25 km, 1-Day) dataset is obtained from the AMSR3 sensor onboard GOSAT-GW and produced by the Japan Aerospace Exploration Agency (JAXA).GOSAT-GW was launched by the H-IIA Launch Vehicle No. 50 (H-IIA 50) at 01:33 a.m. on Jun 29th, 2025 (Japan Standard Time, JST). GOSAT-GW equipped with AMSR3 takes measurements at multiple microwave frequencies and multiple polarizations of weak electromagnetic waves in the microwave band radiated from the Earthâs surface and the atmosphere. AMSR3 has swath of 1535 km and 11 microwave bands. The observation data will enable the creation of long-term trustworthy data sets of global physical amount.Level 3 products are gridded data. They store the brightness tempreture or physical parameters data converted using grid processing and temporally statical processing.This product includes averaged Soil Moisture Content (SMC). SMC product represents the wetness of the soil near the ground surface. Soil moisture near the coastline, around large lakes and marshes, and in areas with large areas of dense forest cannot be estimated. Because microwave radiometers can acquire data at a high frequency and on a regular basis, this product is being used for monitoring large cultivated areas on continents.The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is [%]. The generation unit is global. The sampling resolution is 25 km. The projection method is PS.
GOSAT-GW/AMSR3 L3 Soil Moisture Content (1-Day,25km,PS)
EARTH SCIENCE>LAND SURFACE
EARTH SCIENCE>AGRICULTURE>SOILS
EARTH SCIENCE>LAND SURFACE>SOILS>SOIL MOISTURE/WATER CONTENT
LAND SURFACE
SOILS
SOIL MOISTURE/WATER CONTENT

Climatology Meteorology Atmosphere
GOSAT-GW/AMSR3 L3 Snow Depth (PS, 25 km, 1-Day) dataset is obtained from the AMSR3 sensor onboard GOSAT-GW and produced by the Japan Aerospace Exploration Agency (JAXA).GOSAT-GW was launched by the H-IIA Launch Vehicle No. 50 (H-IIA 50) at 01:33 a.m. on Jun 29th, 2025 (Japan Standard Time, JST). GOSAT-GW equipped with AMSR3 takes measurements at multiple microwave frequencies and multiple polarizations of weak electromagnetic waves in the microwave band radiated from the Earthâs surface and the atmosphere. AMSR3 has swath of 1535 km and 11 microwave bands. The observation data will enable the creation of long-term trustworthy data sets of global physical amount.Level 3 products are gridded data. They store the brightness tempreture or physical parameters data converted using grid processing and temporally statical processing.This product includes averaged Snow Depth (SND). SND product stores depth of snow cover over land surface.We do not provide snow cover over the sea ice surface. Snow depth parameter is closely related to climate variation, and this product enables us to figure out changes in distribution of global snow cover.The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is [cm]. The generation unit is global. The sampling resolution is 25 km. The projection method is PS.
GOSAT-GW/AMSR3 L3 Snow Depth (1-Day,25km,PS)
EARTH SCIENCE>CRYOSPHERE
EARTH SCIENCE>TERRESTRIAL HYDROSPHERE>SNOW/ICE
EARTH SCIENCE>LAND SURFACE
EARTH SCIENCE>OCEANS>SEA ICE>SNOW DEPTH
CRYOSPHERE
SNOW/ICE
LAND SURFACE
SNOW DEPTH

Climatology Meteorology Atmosphere
GOSAT-GW/AMSR3 L3 All-weather Sea Surface Wind Speed (EQR, 0.10 deg, 1-Day) dataset is obtained from the AMSR3 sensor onboard GOSAT-GW and produced by the Japan Aerospace Exploration Agency (JAXA).GOSAT-GW was launched by the H-IIA Launch Vehicle No. 50 (H-IIA 50) at 01:33 a.m. on Jun 29th, 2025 (Japan Standard Time, JST). GOSAT-GW equipped with AMSR3 takes measurements at multiple microwave frequencies and multiple polarizations of weak electromagnetic waves in the microwave band radiated from the Earthâs surface and the atmosphere. AMSR3 has swath of 1535 km and 11 microwave bands. The observation data will enable the creation of long-term trustworthy data sets of global physical amount.Level 3 products are gridded data. They store the brightness tempreture or physical parameters data converted using grid processing and temporally statical processing.This product includes All-weather Sea Surface Wind Speed (ASW) overwritten by latest data. ASW product compliments Sea Surface Wind speed (SSW) product and can estimate wind speed under tropical cyclones (typhoons, hurricanes, cyclones) or heavy rainfall regions where SSW product cannot estimate by using 6- and 10-GHz horizontal polarization channels.The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is [m/s]. The generation unit is global. The sampling resolution is 0.10 deg. The projection method is EQR.
GOSAT-GW/AMSR3 L3 All-weather Sea Surface Wind (1-Day,0.10deg,EQR)
EARTH SCIENCE>OCEANS
EARTH SCIENCE>OCEANS>OCEAN WINDS
EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC WINDS>SURFACE WINDS
OCEANS
OCEAN WINDS
SURFACE WINDS

GOSAT-GW/AMSR3 L3 All-weather Sea Surface Wind Speed (EG, 12.5 km, 1-Month) dataset is obtained from the AMSR3 sensor onboard GOSAT-GW and produced by the Japan Aerospace Exploration Agency (JAXA).GOSAT-GW was launched by the H-IIA Launch Vehicle No. 50 (H-IIA 50) at 01:33 a.m. on Jun 29th, 2025 (Japan Standard Time, JST). GOSAT-GW equipped with AMSR3 takes measurements at multiple microwave frequencies and multiple polarizations of weak electromagnetic waves in the microwave band radiated from the Earthâs surface and the atmosphere. AMSR3 has swath of 1535 km and 11 microwave bands. The observation data will enable the creation of long-term trustworthy data sets of global physical amount.Level 3 products are gridded data. They store the brightness tempreture or physical parameters data converted using grid processing and temporally statical processing.This product includes monthly mean All-weather Sea Surface Wind Speed (ASW). ASW product compliments Sea Surface Wind speed (SSW) product and can estimate wind speed under tropical cyclones (typhoons, hurricanes, cyclones) or heavy rainfall regions where SSW product cannot estimate by using 6- and 10-GHz horizontal polarization channels.The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is [m/s]. The generation unit is global. The sampling resolution is 12.5 km. The projection method is EG.
GOSAT-GW/AMSR3 L3 All-weather Sea Surface Wind (1-Month,12.5km,EG)
EARTH SCIENCE>OCEANS>OCEAN WINDS
EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC WINDS>SURFACE WINDS
OCEAN WINDS
SURFACE WINDS

Oceans
GOSAT-GW/AMSR3 L3 High-resolution Sea Ice Concentration (EQR, 0.10 deg, 1-Month) dataset is obtained from the AMSR3 sensor onboard GOSAT-GW and produced by the Japan Aerospace Exploration Agency (JAXA).GOSAT-GW was launched by the H-IIA Launch Vehicle No. 50 (H-IIA 50) at 01:33 a.m. on Jun 29th, 2025 (Japan Standard Time, JST). GOSAT-GW equipped with AMSR3 takes measurements at multiple microwave frequencies and multiple polarizations of weak electromagnetic waves in the microwave band radiated from the Earthâs surface and the atmosphere. AMSR3 has swath of 1535 km and 11 microwave bands. The observation data will enable the creation of long-term trustworthy data sets of global physical amount.Level 3 products are gridded data. They store the brightness tempreture or physical parameters data converted using grid processing and temporally statical processing.This product includes monthly mean High-resolution Sea Ice Concentration (HSI). HSI product stores percentage of sea ice coverage within target ocean area. There is no sea ice within pixel area when sea ice concentration is 0%, and all pixel area is covered by sea ice when it shows 100%. Sea Ice Concentration (SIC) product also detects the ratio of the sea ice area in each pixel with 15 km spatial resolution. By the limitation of the spatial resolution, it is sometimes difficult for SIC product to monitor detail distribution of the sea ice. HSI product detects the ratio of the sea ice area in each pixel with 5 km spatial resolution mainly using the 89GHz vertical and horizontal polarization Brightness Temperature based on the characteristics of the Brightness Temperature and its polarization difference.The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is [%]. The generation unit is global. The sampling resolution is 0.10 deg. The projection method is EQR.
GOSAT-GW/AMSR3 L3 High-resolution Sea Ice Concentration (1-Month,0.10deg,EQR)
EARTH SCIENCE>CRYOSPHERE>SEA ICE
EARTH SCIENCE>OCEANS>SEA ICE>SEA ICE CONCENTRATION
SEA ICE
SEA ICE CONCENTRATION

GOSAT-GW/AMSR3 L3 Total Precipitable Water (EQR, 0.10 deg, 1-Month) dataset is obtained from the AMSR3 sensor onboard GOSAT-GW and produced by the Japan Aerospace Exploration Agency (JAXA).GOSAT-GW was launched by the H-IIA Launch Vehicle No. 50 (H-IIA 50) at 01:33 a.m. on Jun 29th, 2025 (Japan Standard Time, JST). GOSAT-GW equipped with AMSR3 takes measurements at multiple microwave frequencies and multiple polarizations of weak electromagnetic waves in the microwave band radiated from the Earthâs surface and the atmosphere. AMSR3 has swath of 1535 km and 11 microwave bands. The observation data will enable the creation of long-term trustworthy data sets of global physical amount.Level 3 products are gridded data. They store the brightness tempreture or physical parameters data converted using grid processing and temporally statical processing.This product includes monthly mean Total Precipitable Water (TPW). TPW product represents amount of vertically accumulated water vapor (H2O in gaseous state) in the atmosphere, and defined as amount of water per unit area. Total precipitable water is one of essential hydrological parameters describing state of the atmosphere along with precipitation and cloud liquid water.The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is [kg/m2]. The generation unit is global. The sampling resolution is 0.10 deg. The projection method is EQR.
GOSAT-GW/AMSR3 L3 Total Precipitable Water (1-Month,0.10deg,EQR)
EARTH SCIENCE>ATMOSPHERE
EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC WATER VAPOR
EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC WATER VAPOR>WATER VAPOR INDICATORS
EARTH SCIENCE>ATMOSPHERE>ATMOSPHERIC WATER VAPOR>WATER VAPOR INDICATORS>TOTAL PRECIPITABLE WATER
ATMOSPHERE
ATMOSPHERIC WATER VAPOR
WATER VAPOR INDICATORS
TOTAL PRECIPITABLE WATER

GOSAT-GW/AMSR3 L3 Precipitation (EG, 12.5 km, 1-Day) dataset is obtained from the AMSR3 sensor onboard GOSAT-GW and produced by the Japan Aerospace Exploration Agency (JAXA).GOSAT-GW was launched by the H-IIA Launch Vehicle No. 50 (H-IIA 50) at 01:33 a.m. on Jun 29th, 2025 (Japan Standard Time, JST). GOSAT-GW equipped with AMSR3 takes measurements at multiple microwave frequencies and multiple polarizations of weak electromagnetic waves in the microwave band radiated from the Earthâs surface and the atmosphere. AMSR3 has swath of 1535 km and 11 microwave bands. The observation data will enable the creation of long-term trustworthy data sets of global physical amount.Level 3 products are gridded data. They store the brightness tempreture or physical parameters data converted using grid processing and temporally statical processing.This product includes Precipitation (PRC) overwritten by latest data. Although "precipitation" is usually defined as amount of water, which reaches the surface of the earth from atmosphere as rain and/or snow, microwave imager's precipitation products provide amount of rain (surface rainfall). Accuracy of rainfall estimate over land, however, tends to be lower than that over the ocean. Method of rainfall estimate used in AMSR3 precipitation product is also applied to "Global Rainfall Watch" system, which distributes global rainfall map in near-real-time.The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is [mm/h]. The generation unit is global. The sampling resolution is 12.5 km. The projection method is EG.
GOSAT-GW/AMSR3 L3 Precipitation (1-Day,12.5km,EG)
EARTH SCIENCE>ATMOSPHERE
EARTH SCIENCE>ATMOSPHERE>PRECIPITATION
EARTH SCIENCE>ATMOSPHERE>PRECIPITATION>PRECIPITATION AMOUNT
ATMOSPHERE
PRECIPITATION
PRECIPITATION AMOUNT