|
Soil and Water Engineering
>
Information
>
Upland Watersheds
>
Watershed Data
>
Data Files
Erosion Data
Each watershed had a sediment catchment basin and
a flume constructed at its outlet. Instruments were installed at
each catchment to measure runoff. Sediment was removed and weighed
on site after any large events. Overall, sediment yield was very
low for all watersheds.
Erosion data are in Microsoft Excel (*.xls) format
and include precipitation (mm), runoff (mm) and sediment (Mg ha-1)
by day, week, month and year for each watershed.
Hermada erosion data
(223K Excel file)
Slate Point erosion data
(294K Excel file)
Round Up erosion data
(137K Excel file)
Climate Files
Climate variables were measured at a weather station installed
at each watershed.
The values in these files were corrected for instrument error
and were converted into the same format generated
by the CLIGEN weather generation model for use in WEPP.
The files include the data for all years that the watersheds were
monitored.
Periodic instrument malfunction resulted in
missing data.
For the thesis as with these files, the missing climate
dates were filled with climate data generated by
Rock:Clime
from the
FS WEPP
interface.
The climate files start on January 1 of the
first year that the instruments were installed. However, during
the times when no instruments were installed, the precipitation
was set to 10 mm or less so that no runoff was generated by the
model until the instuments were recording data.
The
thesis
explains this in more detail.
Hermada climate file
(115K text file)
Slate Point climate file
(81K text file)
Round Up climate file
(62K text file)
Spatial Data
Spatial data needed to run the GeoWEPP program were downloaded
from the
NRCS GeoSpatial Data Gateway.
These data included National Elevation Datasets (NEDs) with
30-m pixel resolution, and
Digital Raster Graphics (DRGs) for each watershed.
Data for the three watersheds
compressed into a single 72M ZIP file.
Product Disclaimer
The use of trade, firm, or corporation names in
these pages and linked publications is for the imformation and convenience
of the reader. Such use does not constitute an official endorsement
or approval by the USDA Forest Service of any product or service
to the exclusion of others that may be suitable.
Every effort is made to provide accurate and useful
information. However, the USDA Forest Service and their employees
assume no legal liability for the accuracy, completeness, or usefulness
of any information, apparatus, product, or process disclosed herein.
|