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Heavy rainfall drives one-third of nitrogen runoff, according to new study（图）
Heavy rainfall drives one-third nitrogen runoff according new study
2020/11/13
Heavy rain events that occur only a few days a year can account for up to one-third of the annual nitrogen runoff from farmland in the Mississippi River basin, according to a new study by Iowa St...
When a chemical spills, it's important to know how quickly the spill will spread. When irrigating a crop, a farmer needs to know how fast water moves through soil for absorption by roots. In both case...
Verification of the new ECMWF ERA-Interim reanalysis over France
Verification new ECMWF ERA-Interim France
2011/3/15
An evaluation of the global ECMWF atmospheric reanalysis ERA-Interim (with a 0.5° grid) is performed over France, based on the high resolution (8 km) SAFRAN atmospheric reanalysis. The ERA-Interim pre...
Managing water quality in a New York City watershed
Managing water quality New York City watershed
2009/12/4
Currently economic growth in a New York City watershed is limited due to phosphorus concentrations exceeding standards. The phosphorus concentration in the Cannonsville reservoir in New York State mus...
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 ...
In rural areas the 100-year flood of smaller watersheds has a strong
dependence on the permeability of the geologic subsurface of the watershed
and on the point rainfall intensity.
Based on 70 000 ...
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...
Correction of Measured Precipitation in the Alps Using the Water Equivalent of New Snow
Measured Precipitation Alps Water Equivalent New Snow
2009/10/28
The Hellmann heated siphon pluviograph with wind shield shows 56 % less
winter precipitation than measured on a snow board at an altitude of 2,540 m
a.s.1. For the Swiss heated tipping bucket gauge ...
A New Technique for the Analysis of Extreme Rainfall with Application to Lagos Metropolis,Nigeria
New Technique Analysis of Extreme Rainfall Lagos Metropolis
2009/10/28
This paper focuses on the use of the principle of maximum entropy as an
alternative technique for the parameter estimation of the Extreme Value Type
- 1 (EVI) distribution or Gumbel distribution oft...
The paper describes the development of new procedures for flood estimation
for dam design in Norway. It summarizes the regulations and recommendations
for flood calculations set forth by "The Norweg...
A new Expression for the Uncertainty of a Current Meter Discharge Measurement
new Expression Uncertainty Meter Discharge Measurement
2009/10/27
A method for the conduction of routine current meter discharge measurements
practised in Denmark and Norway is described. Contrary to traditional
methods (ISO-recommendations) it incorporates inform...
Nitrogen Concentrations Simulated with HBV-N:New Response Function and Calibration Strategy
Nitrogen Concentrations HBV-N New Response Function Calibration Strategy
2009/10/23
HBV-N is a conceptual process-based model for simulation of transformation
and transport of nitrogen on the catchment scale. This paper presents further development
with focus on the response functi...
AQUIFER VULNERABILITY ASSESSMENT：IMPROVEMENT OF THE NEW PARAMETRIC MODEL W.A.T.ER.
parametric model aquifer pollution
2009/10/13
An improvement is proposed for the W.A.T.ER. model, a parametric model for the assessment of aquifer vulnerability to pollution developed within the National Group for Hydrogeological Hazard Preventio...
THE IMPACT OF LANDUSE ON SURFACE WATER QUALITY IN QUEENS COUNTY, NEW YORK
Queens County phosphate dissolved oxygen water bodies
2009/10/12
Community water supplies throughout the United States are under increasing threat of contamination from agricultural and urban use of fertilizers and pesticides. Water samples were collected and analy...
Semiarid watershed response in central New Mexico and its sensitivity to climate variability and change
Hydrologic processes temperature precipitation characteristics
2009/7/22
Hydrologic processes in the semiarid regions of the Southwest United States are considered to be highly susceptible to variations in temperature and precipitation characteristics due to the effects of...