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Physically based retrieval of crop characteristics for improved water use estimates
leaf area index two-source energy balance model look-up table
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2009/7/22
The increasing scarcity of water from local to global scales requires the efficient monitoring of this valuable resource, especially in the context of a sustainable management in irrigated agricultur...
Circulation and mixing of lake water
circulation mixing lake water dissolved oxygen
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2009/7/14
The results of the research on the circulation and the mixing of lake water were organized, and the perspective of the research was considered. The flow of lake water is divided into a horizontal flow...
Relationship between stream water quality and mean basin angle in mountainous drainage basins
mountainous area stream water quality mean basin slope
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2009/7/14
The relationship between the stream water quality and mean basin slope was examined in the mountainous region of the Azusa River and Tama River basin. The ionic compositions of stream water are of Ca-...
The effect of surrounding topography on the thermal water circulation in moraine-dammed glacial lakes：Imja and Tsho Rolpa Lakes in the Himalayas
Himalayan glacial lake wind system screening effect barrier effect airflow simulation
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2009/7/14
The observations in the pre-monsoon seasons of 1996 and 1997 indicated that two moraine-dammed glacial lakes, Tsho Rolpa and Imja, in the Nepal Himalayas have the different thermal structure in spite ...
The formation mechanisms and regional characteristics of spring water temperature on the northern foot of Mt. Asama
Mt. Asama Spring water temperature Volcanic activity Wind-hole circulation Groundwater flow system
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2009/7/14
It can be recognized that water temperature of springs distributed on the northern foot of Mt. Asama has remarkable regional variations. The purposes of this study are to discuss the various formation...
Preferential transport of water and 131Iodide in a clay loam assessed with TDR-techniques and boundary-layer flow theory
clay loam soil moisture variations boundary-layer flow
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2009/6/8
Rapid soil moisture variations were measured with TDR equipment at five depths ranging from 0.1 to 0.9 m during five consecutive infiltration experiments under ponding. Each time, 27 mm of water were ...
Sources and controls of calcium and magnesium in storm runoff：the role of groundwater and ion exchange reactions along water flowpaths
calcium magnesium groundwater ion exchange reactions
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2009/6/8
A combined hydrological and chemical investigation was undertaken in a small moorland catchment at Plynlimon to determine the processes controlling storm runoff chemistry. Flow from natural soil pipe...
Water temperature of Plynlimon streams
Water temperature Plynlimon streams
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2009/6/8
Water temperature data were collected from five stations in the upper Severn system. Temperatures were compared between a stream with a 335 ha catchment after it had flowed for c. 1.5 km through clea...
Determination of evaporation from a catchment water balance at a monthly time scale
evaporation monthly time scale catchment water
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2009/6/8
A method is presented to determine total evaporation from the earth's surface at a spatial scale that is adequate for linkage with climate models. The method is based on the water balance of catchment...
An analytical solution for the estimation of the critical available soil water fraction for a single layer water balance model under growing crops
soil water single layer water balance model growing crops
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2009/6/5
In the framework of simplified water balance models devoted to irrigation scheduling or crop modelling, the relative transpiration rate (the ratio of actual to maximal transpiration) is assumed to dec...
Analysis of soil water dynamics in an agroforestry system based on detailed soil water records from time-domain reflectometry
soil water dynamics time-domain reflectometry agroforestry system
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2009/5/27
Time domain reflectometry [TDR] was used to investigate the spatial and temporal variation in surface soil water dynamics under a number of types of vegetation, including both trees and crops grown in...
Groundwater-surface water interaction and the climatic spatial patterns of hillslope hydrological response
Groundwater-surface water interaction climatic spatial patterns
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2009/5/26
A transient, mixed analytical-numerical model of hillslope hydrological behaviour is used to study the patterns of infiltration, evapotranspiration, recharge and lateral flow across hillslopes. Comput...
Characterization of spatial heterogeneity of groundwater-stream water interactions using multiple depth streambed temperature measurements at the reach scale
water fluxes heat conduction-advection streambed temperature
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2009/5/15
Streambed temperatures can be easily, accurately and inexpensively measured at many locations. To characterize patterns of groundwater-stream water interaction with a high spatial resolution, we measu...
Detecting the long-term impacts from climate variability and increasing water consumption on runoff in the Krishna river basin (India)
long-term impacts runoff climate variability Krishna river basin
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2009/5/15
Variations in climate, land-use and water consumption can have profound effects on river runoff. There is an increasing demand to study these factors at the regional to river basin-scale since these e...
Assessing residence times of hyporheic ground water in two alluvial flood plains of the Southern Alps using water temperature and tracers
river water groundwater Water temperature
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2009/5/13
Water temperature can be used as a tracer for the interaction between river water and groundwater, interpreting time shifts in temperature signals as retarded travel times. The water temperature fluc...