A high-resolution satellite-based solar-induced chlorophyll fluorescence dataset for China from 2000 to 2022.

ABSTRACT: Solar-induced chlorophyll fluorescence (SIF) serves as a valuable proxy for photosynthesis. The TROPOspheric Monitoring Instrument (TROPOMI) aboard the Copernicus Sentinel-5P mission offers nearly global coverage with a fine spectral resolution for reliable SIF retrieval. However, the present satellite-derived SIF datasets are accessible only at coarse spatial resolutions, constraining its applications at fine scales. Here, we utilized a weighted stacking algorithm to generate a high spatial resolution SIF dataset (500 m, 8-day) in China (HCSIF) from 2000 to 2022 from the TROPOMI with a spatial resolution at a nadir of 3.5 km by 5.6-7 km. Our algorithm demonstrated high accuracy on validation datasets (R² = 0.87, RMSE = 0.057 mW/m²/nm/sr). The HCSIF dataset was evalua

SUBMITTER: Tao S 

PROVIDER: S-EPMC11599385 | biostudies-literature | 2024 Nov

REPOSITORIES: biostudies-literature