ISSN:0020-6024    

DOI:10.1080/02626666109493198

出版商:Taylor & Francis Group    

年代:1961

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626666109493199

出版商:Taylor & Francis Group    

年代:1961

数据来源: Taylor

摘要:

The intrusion of seawater in a tidal river is treated as a diffusion problem, characterized by a coefficient of longitudinal diffusivity.

ISSN:0020-6024    

DOI:10.1080/02626666109493200

出版商:Taylor & Francis Group    

年代:1961

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626666109493201

出版商:Taylor & Francis Group    

年代:1961

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626666109493202

出版商:Taylor & Francis Group    

年代:1961

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626666109493203

出版商:Taylor & Francis Group    

年代:1961

数据来源: Taylor

摘要:

A watershed's seasonal streamflow fluctuations are caused by meteorological conditions as they are modified by the watershed's inherent characteristics such as size, shape, aspect, geology, and plant cover. Records from Halfway Creek watershed, a perennial tributary to Farmington Creek located on the Wasatch Mountains in northern Utah, show that winter streamflow comprises only a small portion of the total annual yield. The winter contribution, which is low but constant, originates as drainage from deep aquifers. A much greater portion of the water yield comes in the spring as seepage flow derived from melting snow and spring rains, although the highest instantaneous spring peak so far recorded is only 24 csm (cubic feet per second per square mile). Initial recession of the flow of Halfway Creek from its spring peak is rapid, but in a short time its decrease becomes so gradual that in late summer the hydrograph becomes an almost flat line. The summer recession ends when climatic conditions in the autumn cause cessation of plant growth. Rainstorms often interrupt the normal summer recession. Most of these interruptions are brief, but the height of the peak varies widely. For instance, in the 24-year period 1923–1947 when the vegetation cover was depleted, overland flow from short duration intense summer rainstorms caused mud-rock floods from Halfway Creek watershed that had instantaneous peaks 100 to 200 times greater than the spring peak. The relations presented in this report were determined for a small area and are based on specific records. They apply in a general way to a much greater area in northern Utah and the Intermountain West of which they are representative.

ISSN:0020-6024    

DOI:10.1080/02626666109493204

出版商:Taylor & Francis Group    

年代:1961

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626666109493205

出版商:Taylor & Francis Group    

年代:1961

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626666109493206

出版商:Taylor & Francis Group    

年代:1961

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626666109493207

出版商:Taylor & Francis Group    

年代:1961

数据来源: Taylor