Tracer-aided hydrological models are increasingly used to reveal fundamentals of runoff generation processes and water travel times in catchments. Modelling studies integrating stable water isotopes as tracers are mostly based in temperate and warm climates, leaving catchments with strong snow influences underrepresented in the literature. Such catchments are challenging, as the isotopic tracer...

Urban nonpoint source pollution is a significant contributor to water quality degradation. Watershed planners need to be able to estimate nonpoint source loads to lakes and streams if they are to plan effective management strategies. To meet this need for the twin cities metropolitan area, a large database of urban and suburban runoff data was compiled. Stormwater runoff loads and concentration...

Runoff in glacierized alpine basins results from the seasonal snow cover and from the glacier melt. Due to high resolution satellite sensors, it is possible to map snow cover and glacier areas in the basin of Massa-Blatten, 196 km2, 1447 4191 m a.s.l. Depletion curves of snow covered areas were derived in six elevation zones. In addition, the date was determined when the glacierice became expos...

Comprehending the impacts of climate change on regional hydrology and future projections water supplies is great value to manage resources in Yarlung Zangbo River Basin (YZRB). However, large uncertainties from both input data model itself exert obstacles accurate projections. In this work, a hydrological modeling framework was established over YZRB linking Variable Infiltration Capacity (VIC) ...

introduction: snowmelt runoff plays an important role in providing water and agricultural resources, especially in mountainous areas. there are different methods to simulate the process of snowmelt. inter alia, degree-day model, based on temperature-index is more cited. snowmelt runoff model is a conceptual hydrological model to simulate and predict the daily flow of rivers in the mountainous b...

Wintering cattle directly in the field creates potential concerns with water quality, as nutrients added from urine and fecal material over the winter can end up in runoff water, ground water and soil. In 2008/2009 an experiment was conducted to observe the effect of in-field winter feeding of cows on the nutrients in spring snowmelt run-off water. Low temperatures give little opportunity for o...

Snow accumulation is critical for water availability in the northern hemisphere 1,2, raising concern that global warming could have important impacts on natural and human systems in snow-dependent regions 1,3. Although regional hydrologic changes have been observed (e.g., 1,3-5), the time of emergence of extreme changes in snow accumulation and melt remains a key unknown for assessing climate c...

Historical mining has left complex problems in catchments throughout the world. Land managers are faced with making cost-effective plans to remediate mine influences. Remediation plans are facilitated by spatial mass-loading profiles that indicate the locations of metal mass-loading, seasonal changes, and the extent of biogeochemical processes. Field-scale experiments during both lowand high-fl...

Situated in the Southern Alps, the Waitaki basin is the most important hydro catchment in New Zealand and provides approximately one-third of New Zealand’s hydro electricity production. Three sub-catchments receive most of the precipitation: Ohau, Pukaki, and Tekapo. In this alpine region an important fraction of the total precipitation falls as snow, which accumulates during winter months from...

Concentrations and loadings (output, number day-' km-2) of fecal coliform (FC) indicator bacteria were measured from 1979 through 1984 in streamflow from 13 forested watersheds under the following range management strategies: (A) no grazing; (B) grazing without management for livestock distribution; (C) grazing with management to obtain livestock distribution, and (ID) grazing with management t...