Campus Units

Geological and Atmospheric Sciences, Agronomy, Aerospace Engineering, Ames Laboratory

Document Type

Article

Publication Version

Published Version

Publication Date

8-2010

Journal or Book Title

Meteorologische Zeitschrift

Volume

19

Issue

4

First Page

341

Last Page

346

DOI

10.1127/0941-2948/2010/0464

Abstract

We use Soil and Water Assessment Tool (SWAT) when driven by observations and results of climate models to evaluate hydrological quantities, including streamflow, in the Upper Mississippi River Basin (UMRB) for 1981–2003 in comparison to observed streamflow. Daily meteorological conditions used as input to SWAT are taken from (1) observations at weather stations in the basin, (2) daily meteorological conditions simulated by a collection of regional climate models (RCMs) driven by reanalysis boundary conditions, and (3) daily meteorological conditions simulated by a collection of global climate models (GCMs). Regional models used are those whose data are archived by the North American Regional Climate Change Assessment Program (NARCCAP). Results show that regional models correctly simulate the seasonal cycle of precipitation, temperature, and streamflow within the basin. Regional models also capture interannual extremes represented by the flood of 1993 and the dry conditions of 2000. The ensemble means of both the GCM-driven and RCMdriven simulations by SWAT capture both the timing and amplitude of the seasonal cycle of streamflow with neither demonstrating significant superiority at the basin level.

Comments

This article is published as Takle, Eugene S., Manoj Jha, Er Lu, Raymond W. Arritt, and William J. Gutowski. "Streamflow in the upper Mississippi river basin as simulated by SWAT driven by 20th Century contemporary results of global climate models and NARCCAP regional climate models." Meteorologische Zeitschrift 19, no. 4 (2010): 341-346. DOI:10.1127/0941-2948/2010/0464. Posted with permission.

Creative Commons License

Creative Commons Attribution-Noncommercial 4.0 License
This work is licensed under a Creative Commons Attribution-Noncommercial 4.0 License

Copyright Owner

Gebrüder Borntraeger, Stuttgart

Language

en

File Format

application/pdf