Table 3 Seasonal PD values of the hotspot regions in China (the calculation of the influence factors is based on the DAM datasets, the numbers 1–8 represent different hotspots).

From: Evaluation of Reanalysis Surface Incident Solar Radiation Data in China

 

ERA-Interim

MERRA-2

Hotspots

Cloud Coverage

Water Vapor

Hotspots

AOD

Cloud Coverage

Water Vapor

Summer

1

0.4241

0.1624

5

0.2452

0.1342

0.1244

 

2

0.2410

0.0912

6

0.2124

0.1623

0.1398

Winter

3

0.3057

0.0895

7

0.4735

0.3823

0.1579

 

4

0.2125

0.0631

8

0.2699

0.4322

0.1001