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Measuring and Sampling Runoff from Flat Lands
Author(s) -
Willis G. H.,
Laflen J. M.
Publication year - 1968
Publication title -
water resources research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.863
H-Index - 217
eISSN - 1944-7973
pISSN - 0043-1397
DOI - 10.1029/wr004i006p01347
Subject(s) - surface runoff , hydrology (agriculture) , environmental science , sump (aquarium) , flume , sampling (signal processing) , drainage , silt , geology , flow (mathematics) , geotechnical engineering , engineering , ecology , paleontology , oceanography , geometry , mathematics , filter (signal processing) , electrical engineering , biology
A system for measuring and sampling runoff was devised for use on nearly level lands by joining a Parshall flume and a Geib multislot divisor in series. The collected sample is pumped from a sump into above‐ground storage tanks that have a capacity of 12 inches of runoff. The system remains functional even with drainage ditches at near capacity. Samples collected by the system were representative of the runoff water entering the system with regard to their silt and clay content and the concentration of added nitrate and endrin during the various flow rates and sediment concentrations tested.