Accession Number : AD0725845

Title :   The Two Dimensional Spatial Organization of Clear Creek and Old Man Creek, Iowa.

Descriptive Note : Interim rept.,

Corporate Author : HARVARD UNIV CAMBRIDGE MASS LAB FOR COMPUTER GRAPHICS AND SPATIAL ANALYSIS

Personal Author(s) : Woldenberg,Michael J.

Report Date : 23 JUN 1971

Pagination or Media Count : 37

Abstract : The spatial organization of Clear Creek and Old Man Creek, adjacent 6th and 7th order eastward flowing tributaries of the Iowa River was investigated at the 7th, 6th, and 5th order levels. When the number of basins per order was compared to a model based on mixed hexagonal hierarchies of drainage basin areas, evidence for spatial complementarity, incomplete and over-complete basins was found. It was possible to combine contiguous basins and interbasin areas to create equilibrium hierarchies. Both major basins are long and narrow, and the mainstreams flow asymmetrically near the southern sides of each valley. It is noted that the asymmetry allows the formation of more higher order streams than would be the case in a symmetrical basin. This, in turn, may allow the system to transport water and detritus with less frictional loss. (Author)

Descriptors :   (*GEOGRAPHY, *IOWA), (*RIVERS, MATHEMATICAL MODELS), HYDRAULIC MODELS, DRAINAGE, NETWORKS, FLUID FLOW, TRANSPORT PROPERTIES, FRICTION, GRAPHICS, MAPS, TABLES(DATA)

Subject Categories : Hydrology, Limnology and Potamology

Distribution Statement : APPROVED FOR PUBLIC RELEASE