GOSAT-GW/AMSR3 L3 Sea Ice Motion Vector (1-Day,10km,PS)

  • DOI: 10.57746/EO.01hn25gvnwh5d69yayy509xaft
  • Last Updated: 2026-07-01
Data Progress: In Work
G-Portal

Product Summary

GOSAT-GW/AMSR3 L3 Sea Ice Motion Vector (PS, 10 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 Earth’s 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 Motion Vector (SIM). SIM product can monitor daily sea ice circulations in polar oceans. This product is an essential physical parameter to quantify air-ocean momentum exchanges in polar oceans and is detected by calculating spatial lag correlations between pixel arrays on successive Brightness Temperature imageries.
The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is [cm/s]. The generation unit is global. The sampling resolution is 10 km. The projection method is PS. However, although the resolution of the dataset is 10 km, the data are stored only at overlapping grid points corresponding to the GOSAT-GW/AMSR3 L3 Sea Ice Motion Vector (PS, 50 km, 1-Day).

Platform
GOSAT-GW
Sensor
AMSR3

Coverage

Temporal Coverage

2025-08-11 to Present

Spatial Coverage

Bounding Rectangle

Resolution

10 km

Location

  • GEOGRAPHIC REGION > GLOBAL OCEAN
  • GEOGRAPHIC REGION > POLAR
Dataset Short Name
GOSAT-GW_AMSR3_L3_SIM_1Day_10km_PS
Platform / Sensor
GOSAT-GW / AMSR3
Coverage
Spatial Coverage
Bounding Rectangle
Temporal Coverage
2025-08-11 to Present
Product Level ID
L3
Version Description

Version 01A, 2026-06-30, Available

File Format
NetCDF4
Dataset Type
Daily / Global
Resolution
Spatial Resolution
10 km
Temporal Resolution
Daily
Dataset Progress
In Work
Projection
PS
Collection Data Type
SCIENCE_QUALITY
Get Data
https://gportal.jaxa.jp/gpr/?lang=en
Dataset Title
GOSAT-GW/AMSR3 L3 Sea Ice Motion Vector (1-Day,10km,PS)
Distribution Format
NetCDF4
Fees
Free
Citation
Japan Aerospace Exploration Agency. 2025. GOSAT-GW/AMSR3 L3 Sea Ice Motion Vector (1-Day,10km,PS). https://doi.org/10.57746/EO.01hn25gvnwh5d69yayy509xaft
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G-Portal Terms of service
https://gportal.jaxa.jp/gpr/index/eula?lang=en
ISO Topic Categories
  • OCEANS
Science Keywords
  • EARTH SCIENCE > CRYOSPHERE > SEA ICE > SEA ICE MOTION
Location Keywords
  • GEOGRAPHIC REGION > GLOBAL OCEAN
  • GEOGRAPHIC REGION > POLAR
ECV and other Keywords
  • OCEANS
  • CRYOSPHERE
  • SEA ICE
  • SEA ICE MOTION

ISO Topic Categories is the keywords in the ISO 19115 - Geographic Information Metadata.

Science Keywords hosts Global Change Master Directory (GCMD) Keywords which are a hierarchical set of controlled Earth Science vocabularies that help ensure Earth science data, services, and variables are described in a consistent and comprehensive manner and allow for the precise searching of metadata and subsequent retrieval of data, services, and variables.

ECV Keywords hosts a physical, chemical or biological variable or a group of linked variables that critically contributes to the characterization of Earth's climate.

Date Description of Change
2026-06-30 Published and assigned a DOI.