[Parameters: Topic='TERRESTRIAL HYDROSPHERE', Term='SURFACE WATER', Variable_Level_1='STAGE HEIGHT']
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Walnut Creek Watershed Database from the USDA National Soil Tilth Laboratory
Entry ID:
USDA_WALNUT_CREEK
Summary
Abstract:
The Walnut Creek Watershed is a 12,700-acre watershed located south of
Ames, IA. The watershed has been monitored since 1990 for the transport of herbicides (atrazine, alachlor, metribuzin, metolachlor) and nitrates (nitrate-N). Loss of the materials has been measured in tile drains from individual fields, subbasins within the watershed, and from the entire watershed. An extensive network of ...  Geographic Coverage
(Click for Interactive Map)
Spatial coordinates
Temporal Coverage
Start Date:
1992-03-15
Location Keywords
Data Resolution
Temporal Resolution:
annual
Temporal Resolution Range: Annual ISO Topic Category
Ancillary Keywords
Data Set Progress
COMPLETE
Originating Center
Data Center
Distribution
Distribution Media:
online ftp
Fees:
none
Personnel
Role:
INVESTIGATOR
Email:
juerg at giub.unibe.ch
Contact Address:
Institute of Geography, Climatology and Meteorology
University of Bern
City:
Bern
Postal Code:
CH-3012
Country:
Switzerland
Publications/References
Luterbacher, J., D. Dietrich, E. Xoplaki, M. Grosjean, and H. Wanner. 2004. European seasonal and annual temperature variability, trends and extremes since 1500. Science, 303, 1499-1503.
Creation and Review Dates
DIF Creation Date:
2006-06-29
Last DIF Revision Date:
2006-07-03
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