搜索结果: 1-15 共查到“水文学 Measurements”相关记录44条 . 查询时间(0.087 秒)
VERSATILE MOBILE AND STATIONARY LOW-COST APPROACHES FOR HYDROLOGICAL MEASUREMENTS
flood monitoring geo-crowd sourcing image-to-geometry intersection time lapse image analysis smartphone application low-cost camera system Raspberry Pi
2018/6/4
In the last decades, an increase in the number of extreme precipitation events has been observed, which leads to increasing risks for flash floods and landslides. Thereby, conventional gauging station...
A NEW SIMPLIFIED INSTRUMENT FOR WATER TEMPERATURE MEASUREMENTS
NEW SIMPLIFIED INSTRUMENT WATER TEMPERATURE MEASUREMENTS
2009/10/30
Through the rapid development in the field of electrotechniques and the
development ot highly sophisticated recision components it has been possible
to design a new simplified electrical instrumcnt ...
PRECIPITATION MEASUREMENTS WITH VARIOUS PRECIPITATION GAUGE INSTALLATIONS
PRECIPITATION MEASUREMENTS PRECIPITATION GAUGE INSTALLATIONS
2009/10/29
An account is given of precipitation measurements taken with various precipitation
gauge installations at Ultuna, Sweden during 1957-1960. A new
gauge constructed to measure small spatial variations...
EVAPORATION-CONDENSATION AND SNOWMELT MEASUREMENTS IN FINLAND
EVAPORATION-CONDENSATION SNOWMELT MEASUREMENTS FINLAND
2009/10/29
Measurcmcnts on evaporation and the melting of snow cover are presented,
followed by .an explanation of how the measured values depend on
mctcorological factors and thc structure of the snow. The ob...
The effect of gauge height, exposure and screening on systematic errors in
rainfall estimation is investigated. Adhesion losses are found to be more than
2% of the annual precipitation, but for summ...
The normal-exposed Hellmann raingauge only catches about 85% of the true
precipitation on yearly basis. This is mainly due to aerodynamic effects. A
statistical model analysing the ratio of the dail...
Discharge Measurements by a New-Formed Relative Salt-Dilution Method in Small Turbulent Streams
Discharge Measurements New-Formed Relative Salt-Dilution Method Turbulent Streams
2009/10/28
Water discharges in small turbulent streams are determined by injecting concentrated
salt solutions at constant feed-rate and measuring the dilution level
downstream by conductivity readings in situ...
Evaporation from a Snow Cover Review and Discussion of Measurements
Evaporation Snow Cover Review Discussion of Measurements
2009/10/28
Possible evaporation rates from a snow surface with respect to available energy
and vapour pressure deficit in the air are discussed. In literature reported
measurements and measurements carried out...
Prior microwave measurements of snow water equivalent and liquid water
content and conceptualizations of emission and backscattering models are
reviewed. The results of an experiment designed to col...
Snow Surface Measurements from Digital Landsat MSS Data
Snow Surface Measurements Digital Landsat MSS Data
2009/10/28
The snow cover is an important parameter for water run-off prediction in high
mountain areas. At present its seasonal changes can be monitored regularly by
satellite. The paper presents a new method...
Extrapolating Snow Measurements on the Marmot Creek Experimental Basin
Snow Measurements Marmot Creek Experimental Basin
2009/10/27
From 1969 to 1980, each March, snow depth and water equivalent were sampled
around 249 pins of a grid covering the forested portion of Marmot Creek
basin. Continuous record from four snow pillows an...
A Neural Network Approach to Inversion of Snow Water Equivalent from Passive Microwave Measurements
Neural Network Approach Snow Water Equivalent Passive Microwave Measurements
2009/10/26
The inversion of snow water equivalent, SWE, from passive microwave remote
sensing measurements may be accomplished by using a neural network trained
with a dense media multiple scattering model. Br...
High Resolution Measurements of Pollution Wash-Off from an Asphalt Surface
Resolution Measurements Wash-Off Asphalt Surface
2009/10/26
The paper describes a measurement project aiming at delivering water quality
data with the very fine time resolution necessary to discover deterministic
elements of the complex process of pollution ...
Calculation of the Discharge through Øresund at the Drogden Sill by Measurements at two Fixed Stations
Discharge Ø resund Drogden Sill two Fixed Stations
2009/10/26
The paper aims at relating the discharge through 0resund (the sound between
Denmark and Sweden) to measured current and stratification at the two fixed
stations Nordre Rese (St. 24) and Flinten SW (...
Reconstructed Runoff from the High Arctic Basin Bayelva based on Mass-Balance Measurements
High Arctic Basin Bayelva Mass-Balance Measurements
2009/10/26
The river Bayelva drains a catchment area of 31.5 km2 in the Kongsfjord area close to the research station Ny-Ålesund (79° N 12°E) on the northwest coast of Spitsbergen. The basin is 54% glacier...