A

Shikisai netCDF data can be obtained from JASMES (user registration is required).
For details on the data specifications, please refer to the following document.
The following two methods are introduced for converting SGLI netCDF data to GeoTIFF:

• Using GDAL
• Using Python

*For information on converting HDF data to GeoTIFF, please see here.

• GeoTIFF Conversion Using GDAL
The following two examples are provided:
【Example 1】Area around Japan (250 m)

• Conversion example for an ocean chlorophyll-a concentration (CHLA) image
【Example 2】Global (5 km)

• Conversion example for an ocean sea surface temperature (SST) image
GeoTIFF Conversion and Display of Data Obtained from JASMES
• GeoTIFF Conversion Using Python
Sample code is available on JASMES.

Converting JASMES GCOM-C/SGLI and VIIRS Data (netCDF) to GeoTIFF Using Python

Last update: 2026/09/25