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Open-File Report 2007–1441

Prepared in cooperation with the U.S. Agency for International Development, Office of Foreign Disaster Assistance (USAID/OFDA)

Technical Manual for the Geospatial Stream Flow Model (GeoSFM)

By Kwabena O. Asante1, Guleid A. Artan1, Shahriar Pervez1, Christina Bandaragoda2, and James P. Verdin3

1Science Applications International Corporation, Contractor to the U.S. Geological Survey (USGS) Earth Resources Observation and Science (EROS) Center, Sioux Falls, SD, work performed under USGS contract 03CRCN0001
2Water Resource Research Institute, Utah State University, Logan, UT
3U.S. Geological Survey

Abstract

Thumbnail of and link to report PDF (635 kB)

The monitoring of wide-area hydrologic events requires the use of geospatial and time series data available in near-real time. These data sets must be manipulated into information products that speak to the location and magnitude of the event. Scientists at the U.S. Geological Survey Earth Resources Observation and Science (USGS EROS) Center have implemented a hydrologic modeling system which consists of an operational data processing system and the Geospatial Stream Flow Model (GeoSFM). The data processing system generates daily forcing evapotranspiration and precipitation data from various remotely sensed and ground-based data sources. To allow for rapid implementation in data scarce environments, widely available terrain, soil, and land cover data sets are used for model setup and initial parameter estimation. GeoSFM performs geospatial preprocessing and postprocessing tasks as well as hydrologic modeling tasks within an ArcView GIS environment. The integration of GIS routines and time series processing routines is achieved seamlessly through the use of dynamically linked libraries (DLLs) embedded within Avenue scripts. GeoSFM is run operationally to identify and map wide-area streamflow anomalies. Daily model results including daily streamflow and soil water maps are disseminated through Internet map servers, flood hazard bulletins and other media.

Version 1.0

Posted September 2008

For additional information contact:
U.S. Geological Survey Earth Resources Observation and Science (EROS) Center
Sioux Falls, South Dakota
(605) 594-6151
World Wide Web: http://eros.usgs.gov/

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Suggested citation:

Asante, K.O., Artan, G.A., Pervez, S., Bandaragoda, C., and Verdin, J.P., 2008, Technical Manual for the Geospatial Stream Flow Model (GeoSFM): U.S. Geological Survey Open-File Report 2007–1441, 65 p.



Contents

Abstract

Introduction

GeoSFM Architecture

Preprocessing Module

Terrain Analysis Routine

Basin Characterization Routine

Unit Hydrograph Generation Routine

Weather Data Processing Routine

Soil Moisture Accounting Module

Linear Soil Moisture Accounting (LSMA) Routine

Nonlinear Soil Moisture Accounting (NSMA) Routine

River Transport Module

Pure Lag Flow Routine

Diffusion Analog Routine

Muskingum Cunge Routine

Calibration Module

One-At-a-Time (OAT) Sensitivity Analysis

The Multi-Objective Shuffled Complex Evolution Metropolis (MOSCEM) Algorithm

Postprocessing of Calibration Results

Postprocessing Utilities

Conclusions

References Cited

Appendix 1: GeoSFM Data Specifications


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Last modified: Wednesday, 07-Dec-2016 20:59:57 EST