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Use of aerial photography in determining land use and streamflow relationships on small developing watershedsUsing aerial photographs dating back to 1937, the historical trends of five land use classes (crop, forest, open field, urban and suburban) are determined. The relationships between these and various flow regime parameters are investigated. Annual runoff is found to be 7.5 inches greater now than in the year 1932. It is also found that growing season runoff increased by 3.5 inches during the same period. This increase is approximately equivalent to 160 area inches of excess runoff during the 45-year period of observation. The increase in runoff is found to be positively correlated with the percent basin area in the urban, suburban and open field land use classes. A negative correlation is established with forest and crop land. Although poor correlations are found with high flow, low flow, flow interval and flow date data, it is thought that a more precise quantification of land use or a smaller basin area may possibly have yielded more positive results for streamflow timing data.
Document ID
19820051201
Acquisition Source
Legacy CDMS
Document Type
Conference Proceedings
Authors
Owe, M.
(NASA Goddard Space Flight Center Hydrological Sciences Branch, Greenbelt, MD, United States)
Date Acquired
August 10, 2013
Publication Date
January 1, 1981
Subject Category
Earth Resources And Remote Sensing
Meeting Information
Meeting: Annual Meeting
Location: Washington, DC
Start Date: February 22, 1981
End Date: February 27, 1981
Sponsors: American Society of Photogrammetry
Accession Number
82A34736
Distribution Limits
Public
Copyright
Other

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