Table 2 Summary of auxiliary datasets used in the study.

From: The HANTS-fitted RSEI constructed in the vegetation growing season reveals the spatiotemporal patterns of ecological quality

Data

Products and source

Resolution

Pre-processing

Digital Elevation Model (DEM)

Advanced land observing satellite global digital surface mode (ALOS DSM): Global 30m v3.2 (https://www.eorc.jaxa.jp)

30 m

Calculate elevation, slope, and aspect

Temperature data

China 1 km resolution monthly average temperature dataset37

1000 m

Resample to 30 m and filter for the specified year

Precipitation data

China 1 km resolution monthly average precipitation dataset37

1000 m

Resample to 30 m and filter for the specified year

Land use type data

China land cover dataset (CLCD) dataset38

30 m

Calculate the proportion of land classes

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