Images generated courtesy of
University of Colorado Center for the Study of Earth from Space (CSES)/CIRES |
||
---|---|---|
Alex Goetz CSES Director goetz@cses |
Leanne Lestak GIS Project Manager lestak@cses.colorado.edu |
Dave Hulslander Project Technician deh@cses.colorado.edu |
Credits:
The cities were obtained from Patricia A. Berger at Oregan State
University Biosystems Analysis Group in Bioresource Engineering
(
bergerp@alecto.bre.orst.edu).
The road network and railways are from the 1:1,000,000 scale Digital Chart
of the World (DCW) which was mapped by the Defense Mapping Agency. ESRI
(Environmental Systems Research Institute) digitized the DCW and converted
it into ARC/INFO format.
The USGS 1:250,000 DEM data has some inherent problems. When the data is
scanned, stripes or terraced features are created. A low-pass filter was
used to smooth these features. The filter creates a more realistic model.
The filtered DEM was used to create the aspect map and one of the hillshaded
graphics.
The maps are not final. They need scalebars. Some have a UTM grid overlaid
such as the slope and aspect maps. The shaded relief maps don't have grids
or north arrows at this point: north is in the upwards direction.
All watershed boundaries, the drainage network and the 1:250,000 DEM
(Digital Elevation Model) data (which was originally created by the USGS)
was downloaded from the State of Kansas Geographic Information Systems
Initiative's Data Access
and Support Center (DASC).
GIF file | PS file | Map Description | |
---|---|---|---|
CASES related maps: | |||
cases.gif | cases.ps.gz | Shaded relief location map of study area with overlay of rivers in blue, watershed boundary in red and roads and rails in black. | |
cities.gif | cities.ps.gz | B/W map of the cites and watershed boundary. | |
watershed.gif | watershed.ps.gz | Walnut watershed and sub-watersheds in red, rivers in blue and roads and rails in black. | |
aspect.gif | aspect.ps.gz | Aspect relief using low-pass filter on DEM. | |
slope.gif | slope.ps.gz | Degree slope generated from non-filtered DEM. | |
fre4.gif | fre4.ps.gz | Four highest frequency distributions of slope vs. aspect. | |
freq11.gif | freq11.ps.gz | Eleven highest frequency distributions of slope vs. aspect. | |
hillshd.gif | hillshd.ps.gz | Non-filtered shaded relief from DEM. | |
flthillshd.gif | flthillshd.ps.gz | Low-pass filtered shaded relief from DEM. |