The ARS Water Database is a collection of precipitation and streamflow
data from small agricultural watersheds in the United States. This national
archive of variable time-series readings for precipitation and runoff contains
sufficient detail to reconstruct storm hydrographs and hyetographs. There
are currently about 16,600 station years of data stored in the data base.
Watersheds used as study areas range from .2 hectare (0.5 acres) to 12,400
square kilometers (4,786 square miles).
Raingauge networks range from one station per watershed to over 200 stations.
The period of record for individual watersheds vary from 1 to 50 years.
Some watersheds have been in continuous operation since the mid 1930's.
Various types of ancillary data are also maintained with the precipitation
and streamflow. These include air temperature, land management practices,
topography and soils information. Click on highlighted states on the map
below to view available information concerning the individual research
areas in that state.
Click on a state to go to data files
Where to go next
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Map files on this web site require the
free Adobe Acrobat ReaderĀ®.
AdobeĀ® also provides
free PDF tools for the visually impaired.
ARS Watershed Research Center Web Sites
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USDA-ARS Southwest Watershed Research Center, Tucson, AZ
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USDA-ARS Southeast Watershed Research Lab., Tifton, GA
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USDA-ARS J. P. Campbell, Sr. Natural Resource Ctr, Watkinsville, GA
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USDA-ARS Northwest Watershed Research Center, Boise, ID
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USDA-ARS National Sedimentation Lab, Oxford, MS
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USDA-ARS Cropping Systems & Water Quality Research, Columbia, MO
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USDA-ARS North Appalachian Experimental Watershed, Coshocton, OH
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USDA-ARS Grazinglands Research Lab, El Reno, OK
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USDA-ARS Pasture Systems & Watershed Mgmt Res, University Park, PA
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USDA-ARS Grassland, Soil/Water Research Lab., Temple, TX
Using ARS Data for Publications
The Agricultural Research Service (ARS) is a research organization. There
are no legal mandates for the agency to collect or to distribute data collected
for specific research projects. These data are being made available to
the research community to promote the general knowledge of the processes
relating to our country's natural resources. ANY PUBLICATIONS WHICH ARE GENERATED FROM THESE DATA SHOULD ACKNOWLEDGE
THE ARS AS THE SOURCE.In addition we request that you notify the Water Data Center of all publications,
including dissertations, which use or refer to these data. Citations may
be sent by email to:
rroberts@hydrolab.arsusda.govor by mail to:
Water Data Center, USDA-ARS Hydrology & Remote Sensing Lab, Rm. 104,
Bg. 007, BARC-West, 10300 Baltimore Ave., Beltsville, MD 20705-2350
Your cooperation in this matter will promote further research and cooperation,
help to validate the usefulness of the ARS data collection activities and
influence agency policy regarding future data collection.
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