Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
AN ANALYSIS OF STREAMFLOW HYDROLOGY IN THE KUPARUK RIVER BASIN, ARCTIC ALASKA - A NESTED WATERSHED APPROACH
Autore:
MCNAMARA JP; KANE DL; HINZMAN LD;
Indirizzi:
BOISE STATE UNIV,DEPT GEOSCI BOISE ID 83725 UNIV ALASKA,WATER & ENVIRONM RES CTR FAIRBANKS AK 99775
Titolo Testata:
Journal of hydrology
fascicolo: 1-2, volume: 206, anno: 1998,
pagine: 39 - 57
SICI:
0022-1694(1998)206:1-2<39:AAOSHI>2.0.ZU;2-G
Fonte:
ISI
Lingua:
ENG
Soggetto:
ACTIVE LAYER;
Keywords:
ALASKA; ARCTIC; PERMAFROST; RUNOFF; STREAMFLOW;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
35
Recensione:
Indirizzi per estratti:
Citazione:
J.P. Mcnamara et al., "AN ANALYSIS OF STREAMFLOW HYDROLOGY IN THE KUPARUK RIVER BASIN, ARCTIC ALASKA - A NESTED WATERSHED APPROACH", Journal of hydrology, 206(1-2), 1998, pp. 39-57

Abstract

A hydrologic monitoring program was implemented in a nest of watersheds within the Kuparuk River basin in northern Alaska as part of an interdisciplinary effort to quantify the flux of mass and energy from a large arctic area. Described here are characteristics of annual hydrographs and individual storm hydrographs of four basins draining areas of0.026 km(2), 2.2 km(2), 142 km(2), and 8140 km(2); an assessment of the influence that permafrost has on those characteristics; and comparisons to rivers in regions without permafrost. Snowmelt runoff dominated the annual runoff in each basin. A typical storm hydrograph in the Kuparuk River basin had a fast initial response time, long time lags between the hyetograph and hydrograph centroids, an extended recession, and a high runoff/precipitation ratio due to the diminished storage caused by permafrost. The seemingly contradictory results of fast response times and extended recessions can be explained by the presence of alarge saturated area occupied by hillslope water tracks. This saturated area provides a partial-source area for fast runoff generation thatbypasses the storage capacity of organic soils and tundra vegetation. (C) 1998 Elsevier Science B.V. All rights reserved.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 22/09/20 alle ore 19:08:51