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Below is points of caution when using the "SGLI Map projection & GeoTIFF conversion Tool" provided from G-Portal

1. There are gaps between the neighboring tile products converted to GeoTIFF.
When using the tool to convert L2 tile products to GeoTIFF, gaps may be seen between the tile products.
If you want to display the neighboring L2 tiles converted to GeoTIFF without gaps, you need to specify the option (resampling: NN) during conversion. For detail of including operation methods, please refer following.

To display the neighboring L2 tiles converted to GeoTIFF without gaps
2. When converting L2 tile products, the pixel count in the output may differ depending on the input image, even for the same tile.
When converting L2 tile products, the number of pixels in the resulting image may differ depending on the input image, even for the same tile. While the coordinate range and the number of pixels of the source tile product remain fixed(4800x4800 pixels for 250m resolution and 1200x1200 pixels for 1km resolution), the projected extent after conversion is determined based on the effective pixel range of the source. As a result, the number of pixels in the output files can vary.

Both contents are described in the tool's instruction manual.

Last update: 2024/04/12