We evaluated several geomorphic characteristics of our stream. These were bed material, velocity & discharge, pool & riffle cross-sections, and the longitudinal profile.

The bed material is the rocks and sediment that make up the stream bed. Samples of this are typically done in riffle sections (areas where the water flows faster, the bed tends to be rockier, etc.) We took 50 samples of bed material in 5 different riffle sections of our stream.

Here are the results of a recent survey of the bed material type by location in our stream.

Bed_Material_type_be_location_survey.bmp

Here are some pictures of the bed material in our stream.

Location 1
bed_material_location1.JPG

Location 2
bed_material_location_2.JPG
Location 3
bed_material_location_3.JPG


Research Sources for Stream Sediment and Bed Material:
http://depts.washington.edu/ehuf473/ehuf473/rifflerunpool.htm
http://www.waterencyclopedia.com/En-Ge/Erosion-and-Sedimentation.html\
http://www.lgt.lt/geoin/doc.php?did=cl_streams
http://www.ask.com/bar?q=sediment+transportation&page=1&qsrc=2417&ab=4&u=http%3a52fwww.geographylwc.org.uk%2fa%2fas@fasriver%2fsed%2520dep.html