Click on the following links for more information.
Roughness Clinometer
A device and software application for measuring depression
storage, surface roughness and % slope in the field. Contact
me if you would like to borrow this device.
Stream Gaging Sensor EnclosureAn inexpensive, easy to install, tamper proof sensor enclosure
for gaging streams, lakes and wetlands. We have also adapted the
design for monitoring waterlevel in a sinkhole know for its flashy
and extreme (> 20 meter) water table response. This device is
currently in use by several research institutions including:
University of Michigan, Annis Water Institute and the Huron River
Watershed Council. Contact me if you would like us to build you
one.
PCSA algorithm
A software application for mapping directly connected andinternally drained areas from digital elevation models. Useful
for delineating catchments of lakes and streams in depressional
areas and watersheds in urban areas where linework are
available for storm sewers and tile drains. It is a
complimentary and alternative approach to the Jensen and
Dominigue algorithm that forms the basis of the ArcGIS
watershed delineation tool. PCSA's flow direction
parameterization is based on the D8 multiple direction
concept. It does NOT rely on lookup tables for situations
where flow direction cannot be calculated from elevation data.
Consequently it does not produce erraneous and misleading flow
directions that plague output of the ArcGIS flow direction tool when used in low relief situations. Details of the algorithm can be found in: Richards and Brenner(2004); Journal of Great Lakes Research 30(1), p9-21.