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Fig. 10 Drought indicator derived from (top left) MERRA and (bottom left) MERRA-Land root zone soil
moisture estimates for August 2002. Darker colors indicate more severe drought conditions. MERRA-Land
estimates are more consistent than MERRA estimates with an independent drought assessment from the US
Drought Monitor for August 13, 2002 (right)
Fig. 11 Skill (pentad anomaly
R; dimensionless) of MERRA,
MERRA-Land, and ERA-I
estimates (2002-2009) versus
SCAN in situ surface and root
zone soil moisture measurements
at 85 stations. Error bars indicate
approximate 95 % confidence
intervals. Adapted from Reichle
(
2012
)
