搜索结果: 1-14 共查到“水文测量 moisture”相关记录14条 . 查询时间(0.049 秒)
A comparison of ASCAT and modelled soil moisture over South Africa，using TOPKAPI in land surface mode
ASCAT modelled soil moisture South Africa TOPKAPI land surface mode
2010/4/7
In this paper we compare two independent soil moisture estimates over South Africa. The first estimate is a Soil Saturation Index (SSI) provided by automated real-time computations of the TOPKAPI hydr...
Relating surface backscatter response from TRMM precipitation radar to soil moisture:results over a semi-arid region
surface backscatter response TRMM precipitation radar soil moisture
2010/2/20
The Tropical Rainfall Measuring Mission (TRMM) carries aboard the Precipitation Radar (TRMMPR) that measures the backscatter (σ°) of the surface. σ° is sensitive to surface soil moisture and vegetatio...
Soil moisture active and passive microwave products:intercomparison and evaluation over a Sahelian site
Soil moisture active passive microwave products intercomparison evaluation Sahelian site
2010/2/1
This paper presents a comparison and an evaluation of five soil moisture products based on satellite-based passive and active microwave measurements. Products are evaluated for 2005–2006 against groun...
On the scaling characteristics of observed and simulated spatial soil moisture fields
scaling characteristics observed simulated spatial soil moisture fields
2009/10/30
By providing continuous high-resolution simulations of soil moisture fields, distributed hydrologic models could be powerful tools to advance the scientific community's understanding of the space-time...
DEPTH INTERVALS AND TOPSOIL MOISTURE MEASUREMENT WITH THE NEUTRON DEPTH PROBE
DEPTH INTERVALS TOPSOIL MOISTURE MEASUREMENT NEUTRON DEPTH PROBE
2009/10/29
From measurements and calculations using a depth probe, the relative
response is estimated for soil layers of different thicknesses. For a 10 cm
thick layer of soil with the instrument centre in the...
The Role of Soil Moisture in the Water-Balance of a Small-Clay Catchment,1967-75
Soil Moisture Water-Balance Small-Clay Catchment
2009/10/27
An eight year run of detailed soil moisture data has been incorporated into
simple water balance calculations in an attempt to estimate actual evapotranspiration.
The value of this data is shown whe...
Hydrological Analysis of Basin Behaviour from Soil Moisture Data
Hydrological Analysis Basin Behaviour Soil Moisture Data
2009/10/27
Soil moisture dynamics in the Velen drainage basin (Sweden) were analyzed in
order to assess the degree of and the reasons for spatial variation in basin
behaviour. The main tool was a modified vers...
Soil Moisture Deficits in South-Central Sweden I-Seasonal and Regional Distributions
Soil Moisture Deficits South-Central Sweden Seasonal and Regional Distributions
2009/10/27
Some commonly used assumptions about climatically induced soil moisture
fluxes within years and between different parts of a region were challenged
with the help of a conceptual soil moisture model....
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...
Response of Soil Moisture Change to Hydrological Processes in a Continuous Permafrost Environment
Soil Moisture Change Hydrological Processes Continuous Permafrost Environment
2009/10/26
The moisture content of the active layer at three sites in a continuous permafrost
area was measured using a twin-probe gamma density meter. The moisture
storage status at these sites were related t...
The Use of SAR Satellite Imagery to Measure Active Layer Moisture Contents in Arctic Alaska
SAR Satellite Imagery Active Layer Moisture Contents Arctic Alaska
2009/10/23
Synthetic aperture radar (SAR) has the potential for measuring near surface soil
moisture contents for very largc areas. The polar orbiting European Remote
Sensing satellitc (ERS-I) of the European ...
The spatial distribution of soil moisture defines preferential flow paths in the unsaturated
zone. Hence, three dimensional (3D) estimates of soil moisture are of
great importance to understand tran...
Variability of Snowmelt Runoff and Soil Moisture Recharge
Variability of Snowmelt Runoff Soil Moisture Recharge
2009/10/23
The spatial and temporal variability of snowmelt runoff and soil moisture recharge
within small watersheds must be quantified for use in distributed parameter
snowmelt models. Snowmelt runoff, over-...
Estimating Soil Moisture in Small Watersheds,Using a Water Balance Approach
Soil Moisture Small Watersheds Water Balance Approach
2009/10/22
Soil moisture content was estimated daily by a energy balance and water budget
(EBWB) analysis of two small subwatersheds in the Walnut Gulch Experimental
Watershed near Tombstone, Arizona. One wate...