Title
Hydrological cycle in the upper Mississippi River basin: 20th century simulations by multiple GCMs
Campus Units
Geological and Atmospheric Sciences, Agronomy, Aerospace Engineering, Ames Laboratory
Document Type
Article
Publication Version
Published Version
Publication Date
9-28-2005
Journal or Book Title
Geophysical Research Letters
Volume
32
Issue
18
First Page
L18407
DOI
10.1029/2005GL023630
Abstract
We used 20th century simulations by nine global climate models (GCMs) to provide input for a streamflow model to simulate baseline hydrologic conditions in the Upper Mississippi River Basin (UMRB). Statistical tests revealed that streamflow data produced by members of the GCM multi-model ensemble were serially uncorrelated at all lags and formed unimodal distributions and that GCM multi-model results may be used to assess annual streamflow in the UMRB. Although all low-resolution GCMs produced large differences from observations of streamflow and hydrological components simulated by the streamflow model, the nine-member ensemble performed quite well. Results of statistical tests indicate that, of all models used, the high-resolution GCM – the only high-resolution model tested – gives simulated streamflows much closer to observed values, despite the fact that its low-resolution sister model has no advantage over the other seven low-resolution models.
Copyright Owner
American Geophysical Union
Copyright Date
2005
Language
en
File Format
application/pdf
Recommended Citation
Takle, Eugene S.; Jha, Manoj; and Anderson, Christopher J., "Hydrological cycle in the upper Mississippi River basin: 20th century simulations by multiple GCMs" (2005). Geological and Atmospheric Sciences Publications. 172.
https://lib.dr.iastate.edu/ge_at_pubs/172
Included in
Environmental Indicators and Impact Assessment Commons, Environmental Monitoring Commons, Hydrology Commons, Water Resource Management Commons
Comments
This article is published as Takle, Eugene S., Manoj Jha, and Christopher J. Anderson. "Hydrological cycle in the upper Mississippi River basin: 20th century simulations by multiple GCMs." Geophysical research letters 32, no. 18 (2005). DOI:10.1029/2005GL023630. Posted with permission.