Alternative measures due to G-Portal service restrictions : JASMES (FTP server)

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

JASMES

1. Overview

GCOM-C/SGLI Standard data and GCOM-C/SGLI Near-realtime data are available on the FTP site in netCDF format.
JASMES user registration is required to use the FTP site.

2. Publicly available data

Some products of GCOM-C/SGLI are available on the FTP site in netCDF format.

Product Name	Product List	Format	Period
GCOM-C/SGLI Standard	Please click here.	netCDF	2018/1〜
GCOM-C/SGLI Near-realtime	Please click here.	netCDF	2018/1〜

Some data of MODIS and VIIRS are also available.
For list of JASMES products, please check here.

3. Data access

Please register as a user from the JASMES Data Access page, and please follow the instructions in the e-mail you will receive after registration to get data from the FTP site.
Click here for the data aquisition procedure.(Japanese page)

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.
Outiside Japan	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 Data access for the data aquisition procedure.

4-4. File display and analysys

Please refer to the following pages.

Contents	remarks
Sample program to read data
How to convert to GeoTiFF data
Please tell us the display setting of the Shikisai images published on JASMES
How to convert DN value to physical quantity ?
About flag and mask processing