The atmospheric response to projected terrestrial snow changes in the late twenty-first century

AMS Citation:
Alexander, M. A., R. Tomas, C. Deser, and D. M. Lawrence, 2010: The atmospheric response to projected terrestrial snow changes in the late twenty-first century. Journal of Climate, 23, 6430-6437, doi:10.1175/2010JCLI3899.1.
Resource Type:article
Title:The atmospheric response to projected terrestrial snow changes in the late twenty-first century
Abstract: Two atmospheric general circulation model experiments are conducted with specified terrestrial snow conditions representative of 1980-99 and 2080-99 The snow states are obtained from twentieth century and twenty first century coupled climate model integrations under increasing greenhouse gas concentrations Sea surface temperatures sea ice and greenhouse gas concentrations are set to 1980-99 values in both atmospheric model experiments to isolate the effect of the snow changes The reduction in snow cover in the twenty first century relative to the twentieth century increases the solar radiation absorbed by the surface, and It enhances the upward longwave radiation and latent and sensible fluxes that warm the overlying atmosphere The maximum twenty first century minus twentieth century surface air temperature (SAT) differences are relatively small (<3°C) compared with those due to Arctic sea ice changes (∼10°C) However they are continental in scale and are largest in fall and spring, when they make a significant contribution to the overall warming over Eurasia and North America in the twenty first century The circulation response to the snow changes while of modest amplitude Involves multiple components including a local low level trough remote Rossby wave trains an annular pattern that is strongest in the stratosphere and a hemispheric increase in geopotential height.
Peer Review:Refereed
Copyright Information:Copyright 2010 American Meteorological Society (AMS). Permission to use figures, tables, and brief excerpts from this work in scientific and educational works is hereby granted provided that the source is acknowledged. Any use of material in this work that is determined to be "fair use" under Section 107 or that satisfies the conditions specified in Section 108 of the U.S. Copyright Law (17 USC, as revised by P.L. 94-553) does not require the Society's permission. Republication, systematic reproduction, posting in electronic form on servers, or other uses of this material, except as exempted by the above statements, requires written permission or license from the AMS. Additional details are provided in the AMS Copyright Policies, available from the AMS at 617-227-2425 or Permission to place a copy of this work on this server has been provided by the AMS. The AMS does not guarantee that the copy provided here is an accurate copy of the published work.
OpenSky citable URL: ark:/85065/d7fj2h9p
Publisher's Version: 10.1175/2010JCLI3899.1
  • Michael Alexander
  • Robert Tomas - NCAR/UCAR
  • Clara Deser - NCAR/UCAR
  • David Lawrence - NCAR/UCAR
  • Random Profile


    Recent & Upcoming Visitors