rain gauging network Articles
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Assessment of rain-gauge networks using a probabilistic GIS based approach
Rain-gauge networks provide estimates of areal rainfall as a crucial input for hydrological applications. Hence, it is important to quantify the performance of a rain-gauge network and evaluate the contribution of each rain-gauge to the overall accuracy of areal rainfall estimation at basin scale. This paper evaluates the performance and augmentation of a rain-gauge network in a large basin in ...
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Geographic segmentation, spatial dependencies, and evaluation of the relative position of rain-gauges based on gridded data of mean monthly precipitation: application in Nigeria
The aim of the study is to present a combination of techniques for (a) the spatiotemporal analysis of mean monthly gridded precipitation datasets and (b) the evaluation of the relative position of the existing rain-gauge network. The mean monthly precipitation (P) patterns of Nigeria using ∼1 km2 grids for the period 1950–2000 were analyzed and the position of existing rain-gauges was ...
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Greece: Telemetric rain gauge network in Athens - Case Study
Case Study Summary Application Meteorology Location Athens, Greece Products deployed A757 addPULSE GPRS RTU RG1 Rain Gauge 540mA Solar Panel Contributors ScientAct AE Participating Organizations EYDAP (Athens Water Supply and Sewerage Company) Parameters recorded Rain Quantity Rain Intensity Start and end of rain events Duration of each rain event Total rain duration in daily/monthly ...
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Exploration of an adaptive merging scheme for optimal precipitation estimation over ungauged urban catchment
Merging rain gauge and radar data improves the accuracy of precipitation estimation for urban areas. Since the rain gauge network around the ungauged urban catchment is fixed, the relevant question relates to the optimal merging area that produces the best rainfall estimation inside the catchment. Thus, an incremental radar-gauge merging was performed by gradually increasing the distance from ...
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Evaluation of CMPA precipitation estimate in the evolution of typhoon-related storm rainfall in Guangdong, China
The merged precipitation data of Climate Prediction Center Morphing Technique and gauge observations (CMPA) generated for continental China has relatively high spatial and temporal resolution (hourly and 0.1°), while few studies have applied it to investigate the typhoon-related extreme rainfall. This study evaluates the CMPA estimate in quantifying the typhoon-related extreme rainfall using ...
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Optimal sampling network for monitoring the representative water quality of an entire reservoir on the basis of information theory
This study presents a method for optimal selection of sampling stations for representative and effective water quality monitoring of a reservoir on the basis of information theory. We adopt an objective function used for the design of other hydrological monitoring networks such as rain gauge networks. Unlike rain gauges, in which only a single variable of rainfall is of interest, water quality ...
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Automated convective and stratiform precipitation estimation in a small mountainous catchment using X-band radar data in Central Spain
For the purposes of weather nowcasting, flood risk monitoring and water resources assessment, it is often difficult to achieve a reliable spatio-temporal representation of rainfall due to a low rain gauge network density. However, quantitative precipitation estimation (QPE) has acquired new prospects with the introduction of weather radars, thanks to their higher spatio-temporal resolution. ...
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Proportional coefficient method applied to TRMM rainfall data: case study of hydrological simulations of the Hotan River Basin (China)
A low-density rain gauge network is always a major obstacle for hydrological modelling, particularly for alpine and remote regions. The availability of the Tropical Rainfall Measuring Mission (TRMM) rainfall products provides an opportunity for hydrological modelling, although the results must be validated and corrected before they can be used in further applications. In this paper, the ...
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Scottish Borders Council case study
Scottish Borders Council, Scotland Supply of a Trash Screen monitoring and flood warning system, April 2007 Hydro-Logic was appointed to supply 4 trash screen monitors to the Scottish Borders Council. They were installed to monitor the level upstream of the screens and to provide alarms when the level reached a set threshold. This alarm was to be used by the council to indicate a build up of ...
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Multivariate models for rainfall based on Markov modulated Poisson processes
Point process models for rainfall are constructed generally based on Poisson cluster processes. Most commonly used point process models in the literature were constructed either based on Bartlett–Lewis or Neyman–Scott cluster processes. In this paper, we utilize a class of Cox process models, termed the Markov modulated Poisson process (MMPP), to model rainfall intensity. We use ...
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Regional frequency analysis of short duration rainfall extremes using gridded daily rainfall data as co-variate
A regional partial duration series (PDS) model is applied for estimation of intensity duration frequency relationships of extreme rainfalls in Denmark. The model uses generalised least squares regression to relate the PDS parameters to gridded rainfall statistics from a dense network of rain gauges with daily measurements. The Poisson rate is positively correlated to the mean annual ...
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Monitoring effect of tunnel construction on tree stock at Driebergen-Zeist station - Case Study
Project Monitoring network, Driebergen-Zeist station Client Copijn (designs, advises, realises and manages green living environments) Implemented by Eijkelkamp Soil & Water Country The Netherlands Background to installing the monitoring network The railway crossing near Driebergen-Zeist station causes great delays in general traffic flow. To improve this flow, Prorail and the ...
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