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A comparison of GCM sensitivity to changes in CO 2 and solar luminosity
Author(s) -
Marshall Susan,
Oglesby Robert J.,
Larson Jay W.,
Saltzman Barry
Publication year - 1994
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/94gl02619
Subject(s) - gcm transcription factors , environmental science , climatology , climate change , sensitivity (control systems) , climate sensitivity , atmospheric sciences , range (aeronautics) , climate model , general circulation model , meteorology , geology , physics , materials science , electronic engineering , engineering , composite material , oceanography
We evaluate the equilibrium response of the atmospheric climate to a wide range of systematic variations in carbon dioxide (100 to 1000 ppm) and solar luminosity (±5% of today's value) using the NCAR CCM1. The quantitative responses of each set of simulations are compared using a formal sensitivity analysis. Although the forcings on the climate are different, both temporally and spatially, similarities appear in the climatic response. The results of this analysis have broader implications for the use of simulations of past climates as a guide for possible future climatic change.