Gauge Record Hydrologic Statistics: Indicators for Lake Classification

Autor:	C. Price Robison, Robert J. Epting, Ravi C. Reddi
Rok vydání:	2008
Předmět:	geography Marsh geography.geographical_feature_category Ecology Soil morphology Wetland Water level Statistics Principal component analysis Environmental science Stage (hydrology) Surface water Ecology Evolution Behavior and Systematics Water use
Zdroj:	Environmental Bioindicators. 3:193-204
ISSN:	1555-5267 1555-5275
Popis:	Surface water structures and associated active stage management and water use have altered many lakes. Assessing the degree of alteration requires an indicator of hydrologic regime as a first step. Water level regime is an organizing principal of soil morphology and the structure and function of wetland vegetative communities in lakes, marshes, ponds, and wet prairies. Although lake classifications have included a wide variety of physical and biological indicators for various purposes, none is based on hydrologic statistics of water level regimes beyond frequency parameters and simple stage range. Statistical measures of exceedance and level change were derived from the gauge record for a sample of 135 lakes. These measures were used in a principal component analysis to derive independent indicators for lake classification. The first two principal components accounted for 88% of the variance of six original variables and identified two indicators of hydrologic regimes: stage range (50%) and stage rise/fal...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::d62ab6d6a2e40ea0fce73a17d5526a4c https://doi.org/10.1080/15555270802568531 Zobrazit plný text záznamu