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Read Full Article (file size: 1111360 bytes) Cited by
WATER RESOURCES RESEARCH,
VOL. 43,
W10406,
doi:10.1029/2006WR005364,
2007
A weather generator for hydrological, ecological, and agricultural applications
Valeriy Y. Ivanov
Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA Center for the Environment, Harvard University, Cambridge, Massachusetts, USA Department of Civil and Environmental Engineering, University of Michigan, Ann Arbor, Michigan, USA
Rafael L. Bras
Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts, USA
David C. Curtis
Carlton Engineering, Inc., Shingle Springs, California, USA
Abstract
This paper presents a weather generator that allows simulation of hydrometeorological variables representative of a given
geographic location: precipitation, total cloud cover, incoming shortwave radiation, air temperature, humidity, and wind speed.
The approach captures the essential relationships among the quantities of interest, while modeling the diurnal variation of
weather conditions at the hourly scale. Precipitation is considered to be the key driver of simulated hydrometeorological
conditions, which leads to a consistent covariation of the weather variables. The generator was calibrated and validated with
data from three meteorological stations located in New Mexico, Arizona, and Oklahoma. The set of variables reproduced by the
weather generator can serve as input to a number of models of environmental systems, involving hydrological, ecological, water
resources, and agricultural applications. The model is also suitable for creating scenarios of climate regimes (e.g., dry
versus wet climates) useful in sensitivity studies. The source codes of the weather generator, manual, and test applications
are publicly available.
Received 2
August
2006;
accepted 14
June
2007;
published 4
October
2007.
Keywords: climate simulator;
weather generator;
synthetic hydrometeorological series;
hydrologic modeling.
Index Terms: 1847 Hydrology: Modeling; 1816 Hydrology: Estimation and forecasting; 1840 Hydrology: Hydrometeorology; 1873 Hydrology: Uncertainty assessment (3275).
Read Full Article (file size: 1111360 bytes) Cited by
Citation: Ivanov, V. Y., R. L. Bras, and D. C. Curtis
(2007),
A weather generator for hydrological, ecological, and agricultural applications,
Water Resour. Res.,
43,
W10406,
doi:10.1029/2006WR005364.
Copyright 2007 by the American Geophysical Union.
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