Table 4 Correlations of wetland area between GIEMS-2 or SWAMPS and the corresponding simulations for global and three latitude zones.

From: Gridded maps of wetlands dynamics over mid-low latitudes for 1980–2020 based on TOPMODEL

Simulations

Soil moisture data

Correlation coefficient

Global

60°S–30°N

30°N–50°N

50°N–90°N

SGIEMS-2 (1992–2014)

NCEP-DOE

0.31

0.21

0.36*

0.59**

MERRA-Land

0.19

−0.13

0.65**

0.67**

MERRA-2

0.24

−0.02

0.53**

0.66**

ERA5

0.79**

0.63**

0.90**

0.88**

ERA5-Land

0.77**

0.60**

0.87**

0.86**

GLDAS-Noahv2.0

0.49**

0.17

0.73**

0.75**

GLDAS-Noahv2.1

0.65**

0.42

0.72**

0.71**

SWAD2M (2000–2014)

NCEP-DOE

0.60**

−0.20

0.39

0.58**

MERRA-Land

0.70**

−0.05

0.51*

0.75**

MERRA-2

0.66**

−0.08

0.45*

0.55**

ERA5

0.50*

−0.38

0.46*

0.86**

ERA5-Land

0.52**

−0.41

0.54**

0.80**

GLDAS-Noahv2.0

0.65**

−0.04

0.52**

0.69**

GLDAS-Noahv2.1

0.60**

−0.01

0.26

0.78**

  1. *p < 0.1, **p < 0.05.
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