NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Global Water Cycle Agreement in the Climate Models Assessed in the IPCC AR4This study examines the fidelity of the global water cycle in the climate model simulations assessed in the IPCC Fourth Assessment Report. The results demonstrate good model agreement in quantities that have had a robust global observational basis and that are physically unambiguous. The worst agreement occurs for quantities that have both poor observational constraints and whose model representations can be physically ambiguous. In addition, components involving water vapor (frozen water) typically exhibit the best (worst) agreement, and fluxes typically exhibit better agreement than reservoirs. These results are discussed in relation to the importance of obtaining accurate model representation of the water cycle and its role in climate change. Recommendations are also given for facilitating the needed model improvements.
Document ID
20080044774
Document Type
Reprint (Version printed in journal)
Authors
Waliser, D. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Seo, K. -W. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Schubert, S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Njoku, E. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Date Acquired
August 24, 2013
Publication Date
August 18, 2007
Publication Information
Publication: Geophysical Research Letters
Volume: 34
Subject Category
Meteorology and Climatology
Distribution Limits
Public
Copyright
Other
Keywords
climate change
water vapor
global water cycles