نتایج جستجو برای: hydrological and ecological needs

تعداد نتایج: 16856274  

2012
Michael Butts Maria Loinaz Peter Bauer-Gottwein Robert Unnasch Dayna Gross

Two of the key objectives of the European Water Framework Directive (WFD) are: 1) to protect and enhance the status of aquatic ecosystems (and terrestrial ecosystems and wetlands directly dependent on aquatic ecosystems) and 2) to provide for sufficient supply of good quality surface water and groundwater as needed for sustainable, balanced and equitable water use. These requirements, together ...

2014
David M. Martin Dylan Harrison-Atlas LeRoy Poff

“Environmental flows” is a research discipline that emphasizes freshwater allocation in rivers to sustain desired ecological conditions and human well-being. The basis for environmental flow requirements has traditionally relied on hydrological and ecological data. Contemporary methods focus on detailed hydro-ecological relationships within river ecosystems; however, there is currently no struc...

2013
Sakina-Dorothée Ayata Thierry Comtet Éric Thiébaut

19 The relationship between meroplankton distribution and spatio-temporal variability of coastal 20 mesoscale hydrological structure was investigated in the northern Bay of Biscay, NorthEast 21 Atlantic. For the three coastal polychaetes studied, i.e., Pectinaria koreni, Owenia fusiformis, 22 Sabellaria alveolata, the highest larval abundances were sampled in low salinity, low density and 23 hi...

2017
Robert J Rolls Brian Hayden Kimmo K Kahilainen

Climate change and species invasions represent key threats to global biodiversity. Subarctic freshwaters are sentinels for understanding both stressors because the effects of climate change are disproportionately strong at high latitudes and invasion of temperate species is prevalent. Here, we summarize the environmental effects of climate change and illustrate the ecological responses of fresh...

2010
Ajit Govind Jing Ming Chen Jeffery McDonnell Jyothi Kumari Oliver Sonnentag

Landscape-scale hydrological processes can greatly alter the local-scale water balance and many ecological processes linked to it. We hypothesized that in humid forest ecosystems, topographically driven lateral subsurface flow (SSF) has significant influence on ecophysiological processes such as gross primary productivity (GPP) and evapotranspiration (ET). To investigate how simplified hydrolog...

Groundwater, a special hydrological variable and freshwater resource is completely inter-reliant with hydro-metorological, topographic, land use and hydro-geological components of hydrologic cycle. Trend of hydrologic componentsfor future prediction is attempted to confer in this study using Man-Kendall test, linear regression and geometric progression analysis on recorded data collected from r...

2006
Daniel Michelson

Over the last few years, the way data and products from the Swedish weather radar network (SWERAD) have been generated and mananged has undergone a significant transformation, from distributed to centralized configuration. New systems have been introduced for these purposes, along with a number of quality enhancements. This contribution attempts to summarize these recent developments, and it al...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید