Sponsor
Portland State University. Department of Geography
First Advisor
Daniel M. Johnson
Date of Publication
1991
Document Type
Thesis
Degree Name
Master of Science (M.S.) in Geography
Department
Geography
Language
English
Subjects
Contours (Cartography) -- Data processing, Cartography -- Automation, Runoff -- Northeastern States
DOI
10.15760/etd.6197
Physical Description
1 online resource (153 p.)
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.
Rights
In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
Persistent Identifier
http://archives.pdx.edu/ds/psu/25220
Recommended Citation
Bishop, Gary D., "Uncertainty analysis of runoff estimates from runoff-depth contour maps produced by five automated procedures for the northeastern United States" (1991). Dissertations and Theses. Paper 4313.
https://doi.org/10.15760/etd.6197
Plate 1. Long Term Runoff Depth, USGS Manual Map
bishop2.jpg (5346 kB)
Plate 2. Water-Year 1984 Runoff-Depth, USGS Manual Map
bishop3.jpg (5295 kB)
Plate 3. Water-Year 1984 Runoff-Depth (GAGE84)
bishop4.jpg (5664 kB)
Plate 4. Water-Year 1984 Runoff-Depth (LTET)
bishop5.jpg (5608 kB)
Plate 5. Water-Year 1984 Runoff-Depth (LTRP)
bishop6.jpg (5554 kB)
Plate 6. Water-Year 1984 Runoff-Depth (MNLTET)
bishop7.jpg (5741 kB)
Plate 7. Water-Year 1984 Runoff-Depth (MNLTRP)
bishop8.jpg (5508 kB)
Plate 8. Water-Year 1984 Runoff-Depth (REG_R)
bishop9.jpg (5428 kB)
Plate 9. Water-Year 1984 Runoff-Depth (REG_ET)
bishop10.jpg (5184 kB)
Plate 10. Water-Year 1984 Runoff-Depth (MN84RP)
Comments
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