Table 4 Quantitative evaluation of the real experiment. Compared with the LST, there is an inherent error of 2–3 K in the air temperature at the station.

From: Downscaling of ERA5 reanalysis land surface temperature based on attention mechanism and Google Earth Engine

Method

Image-based evaluation

Station-based evaluation

R2

MAE(K)

RMSE(K)

R2

MAE(K)

RMSE(K)

Original

–

–

–

0.878

2.776

4.625

RF

0.941

0.956

1.444

0.861

2.927

4.933

AMUN

0.973

0.613

0.989

0.894

2.848

4.307

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