Monthly Maps of Global XCH4 Distribution Derived from
GOSAT-2 FTS-2 SWIR L2 Products (Spatial interpolation and extrapolation are applied)
These maps are derived from GOSAT-2 FTS-2 SWIR L2 product (GOSAT-2 TANSO-FTS-2 SWIR L2 Column-averaged Dry-air Mole Fraction Product V02.00) with spatial interpolation and extrapolation using the algorithm similar to that used for GOSAT FTS SWIR L3 product generation*.
*Watanabe, H., K. Hayashi, T. Saeki, S. Maksyutov, I. Nasuno, Y. Shimono, Y. Hirose, K. Takaichi, S. Kanekon, M. Ajiro, Y. Matsumoto, and T. Yokota (2015), Global mapping of greenhouse gases retrieved from GOSAT Level 2 products by using a kriging method, Int. J. Remote Sens., 36, 1509–1528.
Jan. 2019
Jan. 2020 (V02.00)
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Jan. 2022 (V02.00)
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Updated: March 3, 2023