GOSAT-GW/AMSR3 L3 Brightness Temperature (1-Day,0.25deg,EQR)

  • DOI: 10.57746/EO.01hna12n9cqejphkcjw6gk1ccs
  • Last Updated: 2026-06-30
Data Progress: In Work
G-Portal

Product Summary

GOSAT-GW/AMSR3 L3 Brightness Temperature (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 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 Brightness Temperature. Brightness Temperature is calculated from sensor counts and is proportional to the power of observed electromagnetic wave. They are expressed by the physical temperature of blackbody, which can emit the electromagnetic wave with the same power. Horizontal polarized wave and vertical polarized wave are stored separately.
The provided format is NetCDF4. The current version of the product is Version 01A. The physical quantity unit is Kelvin. The generation unit is global. The sampling resolution is 0.25 deg. The projection method is EQR.

Platform
GOSAT-GW
Sensor
AMSR3

Coverage

Temporal Coverage

2025-08-11 to Present

Spatial Coverage

Bounding Rectangle

Resolution

0.25 deg

Location

  • GEOGRAPHIC REGION > GLOBAL
Dataset Short Name
GOSAT-GW_AMSR3_L3_TB_1Day_0.25deg_EQR
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
0.25 deg
Temporal Resolution
Daily
Dataset Progress
In Work
Projection
EQR
Collection Data Type
SCIENCE_QUALITY
Get Data
https://gportal.jaxa.jp/gpr/?lang=en
Dataset Title
GOSAT-GW/AMSR3 L3 Brightness Temperature (1-Day,0.25deg,EQR)
Distribution Format
NetCDF4
Fees
Free
Citation
Japan Aerospace Exploration Agency. 2025. GOSAT-GW/AMSR3 L3 Brightness Temperature (1-Day,0.25deg,EQR). https://doi.org/10.57746/EO.01hna12n9cqejphkcjw6gk1ccs
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G-Portal Terms of service
https://gportal.jaxa.jp/gpr/index/eula?lang=en
ISO Topic Categories
  • IMAGERY/BASE MAPS/EARTH COVER
  • GEOSCIENTIFIC INFORMATION
Science Keywords
  • EARTH SCIENCE > SPECTRAL/ENGINEERING > MICROWAVE > BRIGHTNESS TEMPERATURE
Location Keywords
  • GEOGRAPHIC REGION > GLOBAL
ECV and other Keywords
  • SPECTRAL/ENGINEERING
  • MICROWAVE
  • BRIGHTNESS TEMPERATURE

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.