搜索结果: 136-150 共查到“知识库 水文气象学”相关记录393条 . 查询时间(1.125 秒)
The progress of snow albedo for the 1991 winter from Helligdagshaugen research
site, Norway, is presented. The temporal reduction of albedo decreases
as the snow undergoes a process of metamorphosis...
Analysing Hydrometeorological Time Series for Evidence of Climatic Change
Hydrometeorological Time Series Evidence of Climatic Change
2009/10/26
Considerable scientific attention has been focused on a measured increase in
atmospheric C02 and a suspected corresponding change in climate. Such a
change in climate, if it occurred, might be expec...
Areal Extent of Seasonal Snow Cover in a Changed Climate
Areal Extent Seasonal Snow Cover Changed Climate
2009/10/26
In mountain snow basins, a change in climate will likely cause a change in the basin snow cover extent. A procedure for evaluating whether a given climate change scenario will speed up or slow down th...
Topographical Influence on Precipitation Distribution in Different Ranges of Western Himalayas
Topographical Influence Precipitation Distribution Western Himalayas
2009/10/26
Seasonal and annual distribution of rainfall and snowfall with elevation has been
studied for outer, middle and greater Himalayan ranges of Chenab basin in the
western Himalayas. Rainfall and snowfa...
Open-Water and Ice-Jam Flooding of a Northern Delta
Open-Water Ice-Jam Flooding Northern Delta
2009/10/26
Flooding is critical to the ecosystem health of many river-delta environments,
particularly to perched-ponds and lakcs that are vertically separated from the
open-water llow system. This is the case...
Predicting Sedimentgraphs for a Small Agricultural Catchment
Predicting Sedimentgraphs Small Agricultural Catchment
2009/10/23
The key components of a sedimentgraph prediction procedure for small agricultural
catchments are outlined in the paper. An instantaneous unit sedimentgraph
(IUSG) based on the IUH and on a dimension...
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...
How Extreme was the Drought?
Extreme Drought slxeamflow
2009/10/23
In 1993194 a severe drought on the North Island of New Zealand caused water
shortage in the Auckland metropolis. How extreme was the drought? This paper
presents comparisons of frequencies of the 19...
The Effect of Climate Change on River Flow and Snow Cover in the NOPEX Area Simulated by a Simple Water Balance Model
Climate Change River Flow Snow Cover NOPEX Area
2009/10/23
Within the next few decades, changes in global temperature and precipitation
patterns may appear, especially at high latitudes. A simple monthly water-balance
model of the NOPEX basins was developed...
Contributions of Snow to the Annual Water Balance in Moshiri Watershed,Northern Hokkaido,Japan
Contributions of Snow Annual Water Balance Moshiri Watershed
2009/10/23
Characteristics of the water balance were investigated in an experimental watershed
where there is a seasonal snow cover. To estimate the basin-wide snowmelt
by the heat balance method, seven observ...
Snowmelt Hydrology of Two Subarctic Slopes,Southern Yukon,Canada
Snowmelt Hydrology Subarctic Slopes
2009/10/23
Large quantities of water are discharged from subarctic basins during snowmelt
season. Runoff contributing areas as well as timing and magnitude of meltwater
generation from different slopes are hig...
Impacts of urbanisation on hydrological processes are different for snowmelt
and rainfall events. Furthermore, snowmelt and runoff generation differ between
rural and urban areas. Within an urban ar...
Fluxes of Water and Energy from Three High Latitude Tundra Sites in Svalbard
Fluxes of Water Three High Latitude Tundra Sites Svalbard
2009/10/23
Measurements of the surface fluxes of radiation, heat and water vapour were
made at three tundra sites near N~-Alesund, Svalbard for the active seasons
(June to September) of 1995 and 1996. In 1995 ...
Arctic Snow Cover Information for Hydrological Investigations at Various Scales
Arctic Snow Cover Information Hydrological Investigations Various Scales
2009/10/23
Routine snow survey and snow gauge data provided by weather stations establish
snow-on-the-ground and snowfall time series but they lack a spatial dimension.
Of particular importance to arctic hydro...
Wind-induced Precipitation Undercatch of the Hellmann Gauges
Wind-induced Precipitation Hellmann Gauges
2009/10/23
The Hellmann gauges have been widely used as the official precipitation measurement
instruments in 30 countries. From 1986 to 1993, the accuracy and performance
of the Hellmann gauges were evaluated...