Alternative measures due to G-Portal service restrictions::G-Portal Repo (HTTPS)

The following shows how to use G-Portal Repo as an alternative service during a G-Portal service restrictions.

G-Portal Repo

1. Overview
This is the alternative service during the maintenance period (scheduled from October 18, 2024, to March 31, 2025).
GCOM-C/SGLI Standard and GCOM-C/SGLI Near-realtime (HDF format) are available for download.
But product search using the GUI is not accessible.
Please Click here for G-Portal Repo Terms of Use.
2. Publicly available data
GCOM-C/SGLI Standard product and GCOM-C/SGLI Near-realtime products in HDF format are available.
Product Name Product List Format Period
GCOM-C/SGLI Standard Please click here. HDF 2018/1〜
GCOM-C/SGLI Near-realtime Please click here. HDF 2018/1〜
3. Data access
Please access G-Portal Repo using the HTTPS method to acquire data.
4. How to use data

4-1. Check for availability of observation data

Please refer to the image on the following web page to check if the observation data is available for the target date and area.

●Past observations

Area Product Web page How to check
Japan GCOM-C/SGLI
Near-realtime
SGLI Near-realtime Monitor Please specify the target year and month from the menu in the upper left corner and check the images displayed.
GCOM-C/SGLI Standard SGLI Standard Monitor Please select the Japan area from the left menu, then select the target date at the top of the image to see image displayed.
GCOM-C/SGLI
Near-Realtime
Standard
Shikisai Observation Calendar Please select the target date and the target area to see the images displayed.
Outiside Japan GCOM-C/SGLI Standard SGLI Standard Monitor Please select the Global from the left menu, then select the target date at the top of the image to see image displayed.
GCOM-C/SGLI
Near-Realtime
Standard
Observation plan Please select the target date from the calendar and check the image displayed.

●Future observations

Area Product Web page How to check
Japan GCOM-C/SGLI
Near-Realtime
Standard
Shikisai Observation Calendar Please select the target date and the target area to see the images displayed.
Outside Japan GCOM-C/SGLI
Near-Realtime
Standard
Observation plan Please select the target date from the calendar and check the image displayed.

4-2. How to identify the target file

Check the file name (granule ID) from below.
GCOM-C/SGLI Standard
GCOM-C/SGLI Near-Realtime


4-3. How to download files

Please refer to here for the data aquisition procedure.


4-4. File display and analysys

Please refer to the following pages.

Contents remarks
How to convert to GeoTIFF for Shikisai products
How to get a map projection product?
Tools and usage of map projection and GeoTIFF conversion
How to convert HDF to image format(PNG or JPEG)?
CSV output method using QGIS for Shikisai data
The programing method of the Shikisai product display
How to convert DN value to physical quantity ?
About flag and mask processing