Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

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    Statistiek van extreme gebiedsneerslag in Nederland
    Overeem, A. ; Buishand, A. ; Holleman, I. ; Uijlenhoet, R. - \ 2012
    H2O : tijdschrift voor watervoorziening en afvalwaterbehandeling 44 (2012)12. - ISSN 0166-8439 - p. 29 - 31.
    hoogwaterbeheersing - neerslag - regen - regenmeters - meting - kwantitatieve methoden - gebiedsgericht beleid - kansverdelingen - meteorologische waarnemingen - statistische gegevens - flood control - precipitation - rain - rain gauges - measurement - quantitative methods - integrated spatial planning policy - probability distributions - meteorological observations - statistical data
    Kansverdelingen van extreme neerslag zijn doorgaans afgeleid van puntmetingen van regenmeternetwerken en gelden voor een locatie. In het waterbeheer is echter vaak de extreme gebiedsneerslag van belang. Die is voor een bepaalde herhalingstijd lager dan de extreme neerslag op een locatie in dat gebied voor dezelfde herhalingstijd. Door deze gebiedsreductie leiden de gangbare neerslagstatistieken tot een onderschatting van de herhalingstijd voor extreme gebiedsneerslag. Daarom is het noodzakelijk om de kansverdeling van extreme gebiedsneerslag te bestuderen. Dit is maar beperkt mogelijk met de netwerken van regenmeters in Nederland. Recent hebben het Koninklijk Nederlands Meteorologisch Instituut (KNMI) en de leerstoelgroep Hydrologie en Kwantitatief Waterbeheer van Wageningen Universiteit een elfjarige radardataset van neerslaghoeveelheden geanalyseerd. Hierdoor zijn nu neerslagwaarnemingen met een hoge resolutie in tijd en ruimte beschikbaar voor heel Nederland. Met behulp van deze dataset zijn kansverdelingen van extreme gebiedsneerslag afgeleid.
    Climatology of extreme rainfall from weather radar
    Overeem, A. ; Buishand, A. ; Holleman, I. ; Uijlenhoet, R. - \ 2010
    Precipitation measurement at CESAR, the Netherlands
    Leijnse, H. ; Uijlenhoet, R. ; Beek, C.Z. van de; Overeem, A. ; Otto, T. ; Unal, C.M.H. ; Dufournet, Y. ; Russchenberg, H.W. ; Figueras i Ventura, J. ; Klein Baltink, H. ; Holleman, I. - \ 2010
    Journal of Hydrometeorology 11 (2010)6. - ISSN 1525-755X - p. 1322 - 1329.
    neerslag - meettechnieken - weersvoorspelling - data-assimilatie - nederland - precipitation - measurement techniques - weather forecasting - data assimilation - netherlands - polarization spectral-analysis - dual-frequency retrieval - x-band frequencies - radar measurements - rainfall measurements - part i - reflectivity - resolution - rates - doppler
    The Cabauw Experimental Site for Atmospheric Research (CESAR) observatory hosts a unique collection of instruments related to precipitation measurement. The data collected by these instruments are stored in a database that is freely accessible through a Web interface. The instruments present at the CESAR site include three disdrometers (two on the ground and one at 200 mabove ground level), a dense network of rain gauges, three profiling radars (1.3, 3.3, and 35 GHz), and an X-band Doppler polarimetric scanning radar. In addition to these instruments, operational weather radar data from the nearby (;25 km) De Bilt C-band Doppler radar are also available. The richness of the datasets available is illustrated for a rainfall event, where the synergy of the different instruments provides insight into precipitation at multiple spatial and temporal scales. These datasets, which are freely available to the scientific community, can contribute greatly to our understanding of precipitation-related atmospheric and hydrologic processes.
    Climatology of extreme rainfall from weather radar
    Overeem, A. ; Buishand, A. ; Holleman, I. ; Uijlenhoet, R. - \ 2010
    Extreme value modeling of areal rainfall from weather radar
    Overeem, A. ; Buishand, T.A. ; Holleman, I. ; Uijlenhoet, R. - \ 2010
    Water Resources Research 46 (2010). - ISSN 0043-1397
    neerslag - frequentieverdeling - duur - meteorologische waarnemingen - radar - precipitation - frequency distribution - duration - meteorological observations - radar - precipitation annual maxima - frequency estimation - reduction factors - intervals - curves - sites
    An 11 year high-quality radar rainfall data set is used to abstract annual maximum rainfall depths for durations of 15 min to 24 h and area sizes of 6 to 1.7 × 103 km2 for the Netherlands. Generalized extreme value (GEV) distributions are fitted to the annual maxima. A new method is presented to describe the distribution of extreme areal rainfall depths by modeling GEV parameters as a function of both duration and area size. This leads to a semiempirical expression from which quantiles of extreme rainfall depths can be obtained for a chosen duration, area size, and return period. The uncertainties in these quantiles are calculated using the bootstrap method. Radar-based areal reduction factors (ARFs) are derived. These ARFs are comparable to those based on high-density rain gauge networks derived from the literature. It is concluded that radar data, after careful quality control, are suitable to estimate extreme areal rainfall depths
    Real-Time Water Vapor Maps from a GPS Surface Network: Construction, Validation, and Applications
    Haan, S. de; Holleman, I. ; Holtslag, A.A.M. - \ 2009
    Journal of Applied Meteorology and Climatology 48 (2009)7. - ISSN 1558-8424 - p. 1302 - 1316.
    global positioning system - precipitable water - model - verification - netherlands - meteorology - radiosonde - radiometer - errors - delay
    In this paper the construction of real-time integrated water vapor (IWV) maps from a surface network of global positioning system (GPS) receivers is presented. The IWV maps are constructed using a twodimensional variational technique with a persistence background that is 15 min old. The background error covariances are determined using a novel two-step method, which is based on the Hollingsworth¿Lonnberg method. The quality of these maps is assessed by comparison with radiosonde observations and IWV maps from a numerical weather prediction (NWP) model. The analyzed GPS IWV maps have no bias against radiosonde observations and a small bias against NWP analysis and forecasts up to 9 h. The standard deviation with radiosonde observations is around 2 kg m-2, and the standard deviation with NWP increases with increasing forecast length (from 2 kg m-2 for the NWP analysis to 4 kg m-2 for a forecast length of 48 h). To illustrate the additional value of these real-time products for nowcasting, three thunderstorm cases are discussed. The constructed GPS IWV maps are combined with data from the weather radar, a lightning detection network, and surface wind observations. All cases show that the location of developing thunderstorms can be identified 2 h prior to initiation in the convergence of moist air.
    Integration of commercial microwave link measurements and operational weather radar data to improve operational rainfall products
    Leijnse, H. ; Holleman, I. ; Uijlenhoet, R. - \ 2008
    Spatial classification of precipitation from operational radar data
    Beek, C.Z. van de; Uijlenhoet, R. ; Holleman, I. - \ 2005
    In: Preprints of the 32nd AMS Conference on Radar Meteorology, Boston, 24-29 October 2005 Boston : American Meteorological Society - p. np - np.
    A preliminary investigation of radar rainfall estimation in the Ardennes region
    Berne, A.D. ; Uijlenhoet, R. ; Delobbe, L. ; Dierickx, P. ; Holleman, I. - \ 2004
    In: Third European Conference on Radar in Meteorology and Hydrology (ERAD), Visby, 6-10 September 2004 Visby : Copernicus Gesellschaft e.V. - p. np - np.
    CESAR rainfall experiment 2002 (C-Rex '02) - Experimental setup and first results
    Uijlenhoet, R. ; Stricker, J.N.M. ; Heijnen, S. ; Russchenberg, H. ; Zwam, F. van der; Holleman, I. ; Hovius, W. ; Klein Baltink, H. ; Warmer, J. - \ 2003
    In: 31ste American Meteorological Society Conference on Radar Meteorology [S.l.] : S.n. - p. 427 - 428.
    Rainfall estimation using the operational KNMI weather radar: Case study for 19-20 September 2001
    Wielen, S. van der; Uijlenhoet, R. ; Stricker, J.N.M. ; Holleman, I. - \ 2003
    CESAR rainfall experiment 2002 (C-Rex'02) - Experimental setup and first results
    Uijlenhoet, R. ; Heijnen, S. ; Holleman, I. ; Hovius, W. ; Klein Baltink, H. - \ 2003
    CESAR rainfall experiment 2002 (C-REX '02) - Experimental septup and first results
    Uijlenhoet, R. ; Heijnen, S. ; Holleman, I. ; Hovius, W. ; Klein Baltink, H. ; Stricker, J.N.M. ; Warmer, J. ; Zwam, F. van der - \ 2003
    Rainfall Estimation Using the Operational KNMI Weather Radar: Case Study for 19-20 September 2001
    Wielen, S. van der; Uijlenhoet, R. ; Stricker, J.N.M. ; Holleman, I. - \ 2003
    In: International Conference on Floodforecasting in Europe, Rotterdam, March 3-5, 2003 / Reggiani, P., van Kappel, B., Delft : WL/Delft Hydraulics - p. 21 - 21.
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