GOSAT-GW TANSO-3 Product Archive

About This Site

This site provides products processed from data observed using the Anthropogenic and Natural Emissions Mapping Spectrometer-3 (TANSO-3) onboard the Greenhouse Gases and Water Cycle Observation Satellite (GOSAT-GW, "IBUKI GW") and accepts observation requests from authorized users. The GOSAT-GW project is jointly promoted by the Ministry of the Environment (MOE)*, the Japan Aerospace Exploration Agency (JAXA)*, and the National Institute for Environmental Studies (NIES)*, and the satellite was launched on June 29, 2025, aboard the H-IIA Launch Vehicle No. 50 from the Tanegashima Space Center.
* Link is external website, it opens in a separate window.

About data usage user classification

The data categories in using the Services are listed below.It is necessary to register for a user account of the Services either as a General User or an Authorized User in order to download GOSAT-GW products. Registration to "General Users" can be done by the users themselves on the Web. On the other hand, registration to "Authorized User" is performed via the operator.
Note that MOE and NIES shall hereinafter collectively be referred to as the “Two Parties”.

Usage classification Available contents
Guest Users A user who has not registered for an account. A Guest can browse TANSO-3 product images and search for public information, however, cannot order and obtain products.
General Users A user who has completed the user registration. A General User can browse TANSO-3 product images and also order to download and obtain products.
Authorized Users No observation requests Users who fall into the qualification criteria 1 (right column). This type of Authorized User is eligible to receive standard products prior to public release as needed.
  • Qualification Criteria 1:
  • Category (1-1): NIES or those who have concluded Memorandums of Understanding (MOUs) regarding research and development or joint research agreements with NIES and cooperated in the validation of TANSO-3 observational data, retrieval calculations, or data utilization such as emission estimation
  • Category (1-2): MOE, organizations which have concluded LOIs regarding climate change observations or other agreements with MOE, or those who undertake business or operations commissioned by MOE and cooperate in the utilization of TANSO-3 data
  • Category (1-3): Those who have research or business plans for utilizing TANSO-3 data and are authorized by the Two Parties
  • Qualification Criteria 2:
  • Category (2-1): Those who have concluded MOUs, LOIs, or joint research agreements with either of the Two Parties and conducted observations of cities, regions, and point sources in Japan and abroad based on the Plan for Global Warming Countermeasures, the Climate Change Adaptation Plan, the Basic Plan on Space Policy and Schedule, or NIES’s research plan
  • Category (2-2): Those who belong to research institutes submitting observation requests for academic research purposes, foreign government agencies submitting observation requests for use in climate change policies such as estimating their own country’s emissions, or private companies submitting observation requests which may lead to emission reductions in Japan through emission reduction measures, credit generation, etc.
  • Category (2-3): Others who submit observation requests deemed necessary through consultation between the Two Parties
Observation requests available Users who fall into the qualification criteria 1 and 2 (right column). This type of Authorized User is eligible to receive standard products prior to public release as needed, and can apply requests of the Focus Mode observation.
About service contents

The contents of the service to be provided to the data utilizing user are shown below. The service contents that can be used are different according to the user category.

✓ indicates that the service is available.

Service Service availability
Guest Users General Users Authorized Users
No observation requests Observation requests available
Home
Home ✓ ✓ ✓ ✓
News
News ✓ ✓ ✓ ✓
User Registration
User Registration (General User) ✓ - - -
User Registration (Authorized User) ✓ ✓ - -
Login / Logout
Login - ✓ ✓ ✓
Logout - ✓ ✓ ✓
Reissue of password - ✓ ✓ ✓
Change User Profile - ✓ ✓ ✓
Suspend Service Use - ✓ ✓ ✓
Product Search
Search & Download - ✓ ✓ ✓
Browser Search Method ✓ ✓ ✓ ✓
Command Search Method ✓ ✓ ✓ ✓
About Data ✓ ✓ ✓ ✓
Observation Request
Request Application - - - ✓
Request History - - - ✓
Application Method - - - ✓
Documents
User Manual ✓ ✓ ✓ ✓
Technical Docs ✓ ✓ ✓ ✓
Support
Terms of Use ✓ ✓ ✓ ✓
FAQ ✓ ✓ ✓ ✓
Contact Us ✓ ✓ ✓ ✓
About This Site ✓ ✓ ✓ ✓
Site Policy ✓ ✓ ✓ ✓
Privacy Policy ✓ ✓ ✓ ✓
GDPR Privacy Policy ✓ ✓ ✓ ✓