Projected average change in soil moisture for the middle of this century (2041–2070) and late this century (2071–2100) compared to 1971–2000, under two emissions scenarios.
Average change in soil moisture compared to 1971–2000, as projected for the middle of this century (2041–2070) and late this century (2071–2100) under two emissions scenarios, a lower scenario (B1) and a higher scenario (A2). The future drying of soils in most areas simulated by this sophisticated hydrologic model (the Variable Infiltration Capacity, or VIC, model) is consistent with the future drought increases using the simpler Palmer Drought Severity Index (PDSI) metric. Only the western U.S. is displayed because model simulations were only run for this area. (Figure source: NOAA NCEI/CICS-NC.)
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25 June 2015 - 11:11am