From GCMs to river flow : a review of downscaling methods and hydrologic modelling approaches
Atmospheric circulation ; Climatic variation ; Global change ; Hydrology ; Impact ; Methodology ; Model ; Stream flow ; Water resources
This article reviews the current state of methodologies for simulating hydrological responses to global climate change, (global atmospheric general circulation models, GCMs). Emphasis is given to recent advances in climatic downscaling
and the problems related to the practical application of appropriate models in impact studies. Following a discussion of the advantages and deficiencies of the various approaches, challenges for the future study of the hydrological impacts of climate change
In this paper different types of hydrological triggering systems for debris flows, shallow and deeper landslides are described. The generation of surface run-off and high peak discharges in first order alpine catchments is an important triggering
mechanism for debris flows. The assessment of meteorological threshold conditions for shallow landslides needs more detailed meteorological information than for deeper landslides. In the analyses of the hydrological triggering systems of deeper landslides
Aeolian transport ; Aquifer ; Arid area ; Basalt ; Chronosequence ; Hydrology ; New Mexico ; Pedogenesis ; Soil properties ; Soil water ; Spatial variation ; United States of America
The spatial variability of swale soils results in part from the significant hydrologic variability of low-lying landscape positions. Depth profiles of chloride concentrations suggest that hydrologic variability systematically correlates
with the size and shape of depressions in which soils are forming. The infilling of depressions with aeolian material results in increasingly arid hydrologic conditions. The pre-burial high water flux evident in depressions suggests that basalt flows may play
Extreme rainfall and its hydrological impact in North-East Ireland, October 1990
and Cushendall, where flooding was widespread. The event acted as a cataclyst in promoting the recent inception of flood alleviation schemes in the area. It is now recognised that the hydrological characteristics of river catchments need to be closely monitored
The study basin selected is the catchment of the Kluda River situated in the central part of West Pomerania. The study is based on hydrological and hydrochemical data from the period 1990-1993. Variations in the physical and chemical parameters
of those waters reveal considerable differences in surface water properties in the catchment. Hydrological pathways in the slope system and their importance to the supply of solutes to the channel system provided a basis for distinguishing 4 morphodynamic
Strong annual variability and seasonal snow covers determine hydrological processes and related sediment displacements in high latitude regions. The most significant period for runoff and fluvial sediment transport is the snowmelt period in early
summer. Based on the discussion on general aspects of magnitude-frequency relations, atmospheric triggering and resulting hydrologic and geomorphic events in periglacial environments are analyzed with special focus on drainage basins in NW-Spitsbergen
Climatic variation ; Europe ; Hydrology ; Landslide ; Mass movement ; Model ; Precipitation ; Research programme ; Slope ; Slope dynamics
main objectives : developing criteria for the recognition of landslides; reconstructing past distributions of landslide incidents and their relationship to climatic change parameters; and developing a hydrological and slope stability modelling framework
Colorado ; Hydrochemistry ; Hydrology ; Isotope analysis ; Meltwater ; Mountain ; Rocky Mountains ; United States of America ; Water quality ; Watershed
The 35S activity of sulfate in water provides an estimate of the residence time of atmospherically deposited sulfate, and assuming conservative response of sulfate along the hydrologic flowpath, 35S activity can be used to approximate the residence
Climatic variation ; Discharge ; Don ; European part of Russia ; Fluvial hydrology ; Glacier flow ; Hydrological regime ; Scenario ; Seasonal variation ; Twenty-first century