A global climate model (GENESIS) with a land-surface transfer scheme (LSX). Part II: CO2 sensitivity

S. L. Thompson, D. Pollard

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The sensitivity of the equilibrium climate to doubled atmospheric CO2 is investigated using the GENESIS global climate model version 1.02. The atmospheric general circulation model is a heavily modified version of the NAR CCM1 and is coupled to a multicanopy land-surface model (LSX); multilayer models of soil, snow, and sea ice; and a slab ocean mixed layer. Features that are relatively new in CO2 sensitivity studies include explicit subgrid convective plumes, PBL mixing, a diurnal cycle, a complex land-surface model, sea ice dynamics, and semi-Lagrangian transport of water vapor. The global annual surface-air warming in the model is 2.1°C, with global precipitation increasing by 3.3%. Over most land areas, most of the changes in precipitation are insignificant at the 5% level compared to interannual variability. -from Authors

Original languageEnglish (US)
Pages (from-to)1104-1121
Number of pages18
JournalJournal of Climate
Issue number5
StatePublished - Jan 1 1995

All Science Journal Classification (ASJC) codes

  • Atmospheric Science

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