Table 5 Number of in situ sites and comparison metrics between in situ (snow pillow) peak SWE and collocated grid-averaged snow reanalysis prior and posterior (post.) peak SWE grouped by HUC2 basins.

From: A western United States snow reanalysis dataset over the Landsat era from water years 1985 to 2021

HUC2

# Sites

# Site-years

R

MD (m)

RMSD (m)

Prior

Post.

Prior

Post.

Prior

Post.

CA

183

4911

0.75

0.82

−0.19

−0.15

0.36

0.30

PN

280

8566

0.76

0.76

−0.11

−0.22

0.31

0.36

GB

114

2776

0.49

0.65

−0.25

−0.10

0.34

0.23

UCRB

134

3823

0.51

0.70

−0.16

−0.06

0.26

0.19

MO

139

4114

0.47

0.70

−0.15

−0.14

0.27

0.23

Others

78

1736

0.59

0.72

0.19

0.08

0.25

0.16

WUS Total

928

25926

0.74

0.77

−0.16

−0.15

0.31

0.28

  1. Comparison statistics including correlation coefficient (R), mean difference (MD), and root mean square difference (RMSD). MD is computed by subtracting snow reanalysis SWE from in situ SWE. A negative MD represents that the snow reanalysis peak SWE is less than mean of in situ peak SWE.
Back to article page