搜索结果: 1-15 共查到“水文学 Trends”相关记录24条 . 查询时间(0.246 秒)
Hydrological influences on long-term gas flow trends at locations in the Vogtland/NW Bohemian seismic region (German-Czech border)
seismo-hydrology gas flow groundwater level mineral springs mofettes
2015/9/2
One of the typical methods for the identification of seismo-hydrological effects is to monitor changes in the free
gas flow throughout springs or mofettes. For several years, the gas flow regime of m...
Runoff trends analysis and future projections of hydrological patterns in small forested catchments
climate change flow pattern headwater catchments hydrological modelling
2015/3/10
The aims of the present study were (i) to evaluate trends in runoff from small forested catchments of the GEOMON (GEOchemical MONitoring) network during the period 1994–2011, and (ii) to estimate the ...
Long-term trends of rainfall and runoff regime in upper Otava River basin
trend analysis rainfall runoff climate change human impact the Otava River basin Czech Republic
2015/2/4
The floods experienced recently in the Czech Republic gave rise to numerous discussions over the changed environment and related potential impacts on the rainfall and runoff processes. The main aim of...
Streamflow trends in Europe: evidence from a dataset of near-natural catchments
Streamflow trends Europe dataset
2010/12/22
Streamflow observations from near-natural catchments are of paramount importance for detection and attribution studies, evaluation of large-scale model simulations, and assessment of water management,...
Annual maximum discharge is analyzed in the Mekong river in Southeast Asia with regard to trends in average flood and trends in variability during the 20th century. Data from four gauging stations dow...
Trends in Nitrate Pollution of Groundwater in Denmark
Trends Nitrate Pollution Groundwater in Denmark
2009/10/28
A nation-wide investigation of nitrate concentrations in groundwater in
Denmark has been carried out. The investigation is based on analyses of
groundwater samples from app. 11,000 wells and drinkin...
Soil Moisture Deficits in South-Central Sweden II-Trends and Fluctuations
Soil Moisture Deficits South-Central Sweden Trends and Fluctuations
2009/10/27
Soil moisture fluxes in forest and grassland soils were analyzed for a rather dry region in south-central Sweden in order to assess climatologically induced dryness variability. Time series were const...
The Effect of Climate Change on Rainfall Trends and Flooding Risk in the West of Scotland
Climate Change Rainfall Trends Flooding Risk
2009/10/23
Evidence is presented of a general increase in river flows in four catchments in
the West of Scotland in the last 30 years. The increase has been significantly
higher than the increase in rainfall o...
Estimating Regional Precipitation Trends Comparison of two Methods
Regional Precipitation Trends Comparison two Methods
2009/10/23
Two different methods werc applied to estimate long-term precipitation trends
representativ'e for regions in Norway. A new method, comparative trend analysis
(CTA), was applied on 142 homogeneous pr...
Trends and Characteristics of Hydrological Time Series in Finland
Trends Characteristics Hydrological Time Series Finland
2009/10/22
Hydrological time series analyses made in Finland up to 2001 show the following:
1) Precipitation has been increasing in southern and central Finland, and
also in the north in winter, during the per...
A STOCHASTIC MODEL FOR IDENTIFICATION OF TRENDS IN OBSERVED HYDROLOGICAL AND METEOROLOGICAL DATA DUE TO CLIMATE CHANGE IN WATERSHEDS
climate change STOCHASTIC MODEL natural processes
2009/10/12
The development of appropriate public policy responses to the impact of climate change on the overall ecosystem would require knowledge of future trends in the natural processes affecting the ecosyste...
Observed drought and wetness trends in Europe:an update
www.hydrol-earth-syst-sci.net www.hydrol-earth-syst-sci.net www.hydrol-earth-syst-sci.net www.hydrol-earth-syst-sci.net www.hydrol-earth-syst-sci.netObserved drought wetness trends
2009/9/11
Linear and nonlinear trends of drought and wetness are analysed in terms of the gridded Standardized Precipitation Index (SPI) determined from monthly precipitation in Europe (NCEP/NCAR). In character...
Predicting soil acidification trends at Plynlimon using the SAFE model
soil acidification trends Plynlimon SAFE model
2009/6/8
The SAFE model has been applied to an acid grassland site, located on base-poor stagnopodzol soils derived from Lower Palaeozoic greywackes. The model predicts that acidification of the soil has occur...
Trends and seasonality in stream water chemistry in two moorland catchments of the Upper River Wye, Plynlimon
stream water chemistry Upper River Wye moorland catchments
2009/6/8
Stream water chemistry in the Cyff and Gwy subcatchments within the headwaters of the River Wye has been monitored regularly since 1980. In the Gwy, which is a predominantly semi-natural grassland ca...
Acidification in Three Lake District Tarns：Historical Iong term trends and modelled future behaviour under changing sulphate and nitrate deposition
Acidification nitrate deposition sulphate
2009/6/8
Three upland Lake District Tarns, Scoat, Greendale and Burnmoor, have been evaluated using MAGIC (Model of Acidification of Groundwater In Catchments) to reconstruct past, present and future chemical ...