Advisor

Daniel M. Johnson

Date of Award

1991

Document Type

Thesis

Degree Name

Master of Science (M.S.) in Geography

Department

Geography

Physical Description

1 online resource (153 p.)

Subjects

Contours (Cartography) -- Data processing, Cartography -- Automation, Runoff -- Northeastern States

DOI

10.15760/etd.6197

Abstract

Maps of runoff-depth have been found to be useful tools in a variety of water resource applications. Producing such maps can be a challenging and expensive task. One of the standard methods of producing these maps is to use a manual procedure based on gaged runoff data, topographic and past runoff-depth maps, and the expert opinion of hydrologists.

This thesis examined five new automated procedures for producing runoff-depth contour maps to see if the maps produced by these procedures had similar accuracy and characteristics when compared to the manual procedure. An uncertainty analysis was used to determine the accuracy of the automated procedure maps by withholding gaged runoff data from the creation of the contour maps and then interpolating estimated runoff back to these sites from the maps produced. Subtracting gaged runoff from estimated runoff produced interpolation error values. The mean interpolation error was used to define the accuracy of each map and was then compared to a similar study by Rochelle, et al., (1989) conducted on a manual procedure map.

Description

This thesis includes supplemental content available to download.

If you are the rightful copyright holder of this dissertation or thesis and wish to have it removed from the Open Access Collection, please submit a request to pdxscholar@pdx.edu and include clear identification of the work, preferably with URL

Persistent Identifier

http://archives.pdx.edu/ds/psu/25220

bishop1.jpg (1455 kB)
Plate 1. Long Term Runoff Depth, USGS Manual Map

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Plate 2. Water-Year 1984 Runoff-Depth, USGS Manual Map

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Plate 3. Water-Year 1984 Runoff-Depth (GAGE84)

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Plate 4. Water-Year 1984 Runoff-Depth (LTET)

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Plate 5. Water-Year 1984 Runoff-Depth (LTRP)

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Plate 6. Water-Year 1984 Runoff-Depth (MNLTET)

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Plate 7. Water-Year 1984 Runoff-Depth (MNLTRP)

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Plate 8. Water-Year 1984 Runoff-Depth (REG_R)

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Plate 9. Water-Year 1984 Runoff-Depth (REG_ET)

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Plate 10. Water-Year 1984 Runoff-Depth (MN84RP)

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