weather radar Articles

  • Development of method for X-band weather radar calibration

    Calibration of the X-band LAWR (Local Area Weather Radar) is traditionally based on an assumed linear relation between the LAWR radar output and the rainfall intensity. However, closer inspection of the data reveal that the validity of this linear assumption is doubtful. Previous studies of this type of weather radar have also illustrated that the radar commonly has difficulties in estimating ...


    By IWA Publishing

  • Assimilation of weather radar and binary ubiquitous sensor measurements for quantitative precipitation estimation

    Assimilation of data from heterogeneous sensors and sensor networks is critical for achieving accurate measurements of environmental processes at the time and space scales necessary to improve forecasting and decision-making. Owing to different measurement accuracies and types of spatial and/or temporal measurement support of the component sensors, it is often unclear how best to combine these ...


    By IWA Publishing

  • Improved wet weather wastewater influent modelling at Viikinmäki WWTP by on-line weather radar information

    Municipal wastewater treatment plant (WWTP) influent is typically dependent on diurnal variation of urban production of liquid waste, infiltration of stormwater runoff and groundwater infiltration. During wet weather conditions the infiltration phenomenon typically increases the risk of overflows in the sewer system as well as the risk of having to bypass the WWTP. Combined sewer infrastructure ...


    By IWA Publishing

  • Rainfall observations and assessment using vertically pointing radar and X-band radar

    Two years of K-Band micro rain radar-2 (MRR) data are used to investigate the vertical variability of rain in an atmospheric column and assess MRR rainfall estimates accuracy from both direct rainfall measurement using the Mie Theory (i.e., MRR RR) and a Z-R relationship (Z = 300 R1.4) (i.e., MRR Rz). Two different height resolutions (HR) settings are used. A nearby Doppler weather radar KEWX ...


    By IWA Publishing

  • Evaluating the accuracy of C- and X-band weather radars and their application for stream flow simulation

    This paper investigates the accuracy of rainfall estimates from C- and X-band weather radars and their application for stream flow simulation. Different adjustment procedures are applied to raw radar estimates using gauge readings from a network of 12 raingauges. The stream flow is simulated for the 48.17 km2 Molenbeek/Parkbeek catchment located in the Flemish region of Belgium based on a lumped ...


    By IWA Publishing

  • Urban pluvial flood prediction: a case study evaluating radar rainfall nowcasts and numerical weather prediction models as model inputs

    Flooding produced by high-intensive local rainfall and drainage system capacity exceedance can have severe impacts in cities. In order to prepare cities for these types of flood events – especially in the future climate – it is valuable to be able to simulate these events numerically, both historically and in real-time. There is a rather untested potential in real-time prediction of urban ...


    By IWA Publishing

  • Radar-rainfall estimation algorithms of Hydro-NEXRAD

    Hydro-NEXRAD is a prototype software system that provides hydrology and water resource communities with ready access to the vast data archives of the U.S. weather radar network known as NEXRAD (Next Generation Weather Radar). This paper describes radar-rainfall estimation algorithms and their modular components used in the Hydro-NEXRAD system to generate rainfall products to be delivered to ...


    By IWA Publishing

  • Wet weather flow management

    For years, population explosion, demographic shifts, urbanization, aging infrastructure, limited water resources, and economic development have driven our water market, and with that our world’s need for total water solutions. ...


    By CH2M Hill Companies, Ltd.

  • Quantitative pipe condition assessment with Pipe Penetrating Radar

    Abstract Pipe Penetrating Radar (PPR) is the underground in-pipe application of GPR, a non-destructive testing method that can detect defects and cavities within and outside mainline diameter (>18 in / 450mm) non-ferrous (reinforced concrete, vitrified clay, PVC, HDPE, etc.) pipes. The key advantage of PPR is the unique ability to map pipe wall thickness and deterioration including voids ...


    By SewerVUE

  • Long-term evaluation of gauge-adjusted precipitation estimates from a radar in Norway

    The implementation of weather radars in Norway by the Norwegian Meteorological Institute (met.no) has made radar a potential tool to improve hydrologic predictions through the use of distributed precipitation input. Met.no supplies gauge-adjusted quantitative hourly radar precipitation estimates. A key concern regarding the use of radar precipitation estimates in hydrology is their accuracy. In ...


    By IWA Publishing

  • Seismic reflection, seismic crosshole and ground penetrating radar case study

    Geophysical Investigation of the Crosstown Expressway. Tampa, FL In April, 2004 Pier 97 which supported an elevated roadway in Tampa, FL was vertically displaced (collapsed) approximately 10 feet (ft). At the time of the collapse it was not known whether the collapse was associated with geological conditions at the site, specifically karst conditions, or whether is was associated with a ...


    By GeoView, Inc.

  • Case study - Weather data for nautical information system

    In Lemwerder, Germany at the Weser River, wind direction and speed are measured and transferred in 60 second intervals via the OTT netDL 1000.  The data is transmitted, wireless, over a distance of 600 meters to the radar tower in Ritzenbuettel, where it is integrated into the ship traffic network - the Authority for Water and Navigation (WSA), Bremen. The WSA is also responsible for ...


    By The OTT Hydromet Group

  • Smart PV Monitoring with smart Weather Stations

    Goodbye Cable Clutter, Hello All-In-One Weather Sensors: Lufft is proof of the fact that professional measurement technology does not always have to be complicated. With our experience in weather sensor manufacturing we are the first to offer modular, all-in-one weather sensors for the solar energy industry that require only a single cable connection. Everything you need for solar monitoring is ...

  • NWS Weather Spotter Relies on RainWise - Case Study

    Tom Haraden is a retired National Park Service Ranger and current National Weather Service spotter in Utah. "I like that [my MK-lll-LR] is reliable, wireless, accurate, measures maximums and minimums," Tom says, " and measures eight parameters. I guess my favorite part is having an accurate barometer. I can predict the weather here with only that. We have the display hung where the kitchen, ...


    By RainWise Inc.

  • 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. ...


    By IWA Publishing

  • How better weather forecasting can help stretch water supplies

    Reservoir managers look to storm predictions to make smarter choices about dam operations Last year, New York City faced an unusual situation. An epic winter in the city’s Delaware River watershed brought heavy snow and very little rain. Stubborn cold meant there was no snowmelt to refill water-supply reservoirs, even as the city’s 9.5 million residents were draining them dry. A ...


    By Ensia

  • Comparison of short-term rainfall forecasts for model-based flow prediction in urban drainage systems

    Forecast-based flow prediction in drainage systems can be used to implement real-time control of drainage systems. This study compares two different types of rainfall forecast – a radar rainfall extrapolation-based nowcast model and a numerical weather prediction model. The models are applied as input to an urban runoff model predicting the inlet flow to a waste water treatment plant. The ...


    By IWA Publishing

  • Case study - New monitoring network for Scottish ports

    In the past, the ferries operating off the west coast of Scotland would have to sail to port to assess weather and tidal conditions would allow them to berth alongside the pier.  In efforts to save time, fuel and costs, the Caledonian Maritime Assets Limited (CMAL), which owns many of the ferries, ports and harbors in the region, decided to install 15  tide and weather stations, using ...


    By The OTT Hydromet Group

  • Development of the Stormwater Information System that protects life and property from floods

    The Stormwater Information System distributes storm pump operating conditions, etc. to residents in real time via the Internet utilizing a private network that employs optical fibers installed in sewer pipes. Information to be distributed includes advisory and warning information relating to weather data, weather radar information, river information, emergency disaster information, refuge maps, ...

  • Big data and hydroinformatics

    Big data is popular in the areas of computer science, commerce and bioinformatics, but is in an early stage in hydroinformatics. Big data is originated from the extremely large datasets that cannot be processed in tolerable elapsed time with the traditional data processing methods. Using the analogy from the object-oriented programming, big data should be considered as objects encompassing the ...


    By IWA Publishing

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