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Updated 12 October, 2003

US National Assessment of
the Potential Consequences
of Climate Variability and Change
Soil Moisture
 

 

 

Soil moisture deltas are differences in soil moisture between the future (2025-2034, designated as 2030; or 2090-2099, designated as 2095) and the modern baseline (1961-1990) within the GCM simulations.  S/N is signal to noise, which is the delta divided by the standard deviation of the 1961-1990 period.  Percent differences are the delta divided by the mean of the 1961-1990 period.  In CGCM1 soil moisture unites are fraction of field capacity.  In HADCM2 soil moisture units are cm/month.  DJF is winter (December, January, February) and JJA is summer (June, July, and August).  White grid cells represent grids where the soil moisture is saturated (e.g. ocean) in both the present-day and future time periods.  The historical soil moisture trend at the bottom is plotted from data supplied by the NCDC.


CGCM1

CGCM1 Soil Moisture Delta 2030 DJFCGCM1 Soil Moisture S/N 2030 DJF
 
 

CGCM1 Soil Moisture % Delta 2030 DJF
 

CGCM1 Soil Moisture Delta 2030 JJACGCM1 Soil Moisture S/N 2030 JJA
 

CGCM1 Soil Moisture % Delta 2030 JJA
 

CGCM1 Soil Moisture Delta 2095 DJFCGCM1 Soil Moisture S/N 2095 DJF
 
 

CGCM1 Soil Moisture % Delta 2095 DJFCGCM1 Soil Moisture % Delta 2095 DJF
 
Updated on 11/8/99 (Pseudo-trends are the previous images based on two decades only;
 Trends are the linear regression from 2000-2099)

CGCM1 Soil Moisture Delta 2095 DJFCGCM1 Soil Moisture Delta 2095 DJF
 

CGCM1 Soil Moisture Delta 2095 JJACGCM1 Soil Moisture S/N 2095 JJA
 
 

CGCM1 Soil Moisture Delta 2095 DJFCGCM1 Soil Moisture Delta 2095 DJF
 

Updated on 11/8/99
 

CGCM1 Soil Moisture trend JJACGCM1 Soil Moisture trend JJA
 
 











HADCM2


















HADCM2 Soil Moisture Delta 2030 DJFHADCM2 Soil Moisture S/N 2030 DJF
 
 

HADCM2 Soil Moisture % Delta 2030 DJF
 

HADCM2 Soil Moisture Delta 2030 JJAHADCM2 Soil Moisture S/N 2030 JJA
 
 

HADCM2 Soil Moisture % Delta 2030 JJA
 

HADCM2 Soil Moisture Delta 2095 DJFHADCM2 Soil Moisture S/N 2095 DJF
 
 

HADCM2 Soil Moisture % Delta 2095 DJFHADCM2 Soil Moisture % Delta 2095 DJF
 

Updated on 11/8/99 (I corrected an error in the previous pseudo-trend map which was JFM instead of DJF).

HADCM2 Soil Moisture % Delta 2095 DJFHADCM2 Soil Moisture % Delta 2095 DJF

HADCM2 Soil Moisture Delta 2095 JJAHADCM2 Soil Moisture S/N 2095 JJA
 
 

HADCM2 Soil Moisture % Delta 2095 JJAHADCM2 Soil Moisture % Delta 2095 JJA
 
 

Updated on 11/8/99 (I corrected an error in the previous pseudo-trend map which was JAS instead of JJA).
 

HADCM2 Soil Moisture % Delta 2095 JJAHADCM2 Soil Moisture % Delta 2095 JJA
 
 





OBSERVED and ANNUAL PROJECTED

Historical Figure Updated on 3/3/00



Historical Soil Moisture % Trend








CGCM1 Annual Soil Moisture % TrendHadCM2 Annual Soil Moisture % Trend
 
 
 

Updated on 11/8/99
 
 

CGCM1 Annual Soil Moisture % TrendHadCM2 Annual Soil Moisture % Trend
 
 
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