Main Title |
Alterations in the Hydrologic Cycle Induced by Urbanization in Northern New Castle County, Delaware: Magnitudes and Projections. |
Author |
Albrecht., James C. ;
|
CORP Author |
Delaware Univ., Newark. |
Year Published |
1974 |
Report Number |
DI-14-31-0001-3508 ;DI-14-31-0001-3808; OWRR-A-017-DEL; W74-07729 ; OWRR-A-017-DEL(2) |
Stock Number |
PB-232 153 |
Additional Subjects |
Hydrologic cycle ;
Delaware ;
Surface water runoff ;
Urban areas ;
Mathematical models ;
Ground water ;
Evapotranspiration ;
Heat transfer ;
Soil water ;
Watersheds ;
Surface waters ;
Land use ;
Shellpot Creek ;
New Castle County(Delaware) ;
Wilmington Delaware ;
Storm water runoff
|
Holdings |
Library |
Call Number |
Additional Info |
Location |
Last Modified |
Checkout Status |
NTIS |
PB-232 153 |
Some EPA libraries have a fiche copy filed under the call number shown. |
|
07/26/2022 |
|
Collation |
26p |
Abstract |
A model of surface runoff as a function of land surface characteristics in an urban residential area was developed from measured land surface characteristics, precipitation, and runoff data. Surface runoff from impervious surfaces feeding directly into drainage ways began after an initial extraction for wetting the surface of .03 inches (.08 inches after hot, sunny summer weather). The model was used to evaluate the effects of urbanization on other components of the hydrologic cycle by incorporation into a standard daily water budget run for Shellpot Creek Watershed, Wilmington, DE for 1954 to 1968. The application revealed a tripling of surface runoff, a one-half increase in total runoff, and a halving of both percolate to ground water and actual evapotranspiration as urbanized surface (residential use, 54 percent impervious surface) increased from 20 to 100 percent of the watershed area. |
NTIS Title Notes |
Research project technical completion rept.. |
PUB Date Free Form |
1 Apr 74 |
Category Codes |
8H; 48G |
NTIS Prices |
PC A03/MF A01 |
Document Type |
NT |
Cataloging Source |
NTIS/MT |
Control Number |
326590513 |
Origin |
NTIS |
Type |
CAT |