Journal article
DEVEX-disdrometer evaluation experiment: Basic results and implications for hydrologic studies
Advances in water resources, Vol.29(2), pp.311-325
2006
DOI: 10.1016/j.advwatres.2005.03.018
Abstract
Increasing our understanding of the small scale variability of drop size distributions (DSD), and therefore of several bulk characteristics of rainfall processes, has major implications for our interpretation of the remote sensing based estimates of precipitation and its uncertainty. During the spring and summer of 2002 the authors conducted the DEVEX experiment (disdrometer evaluation experiment) to compare measurements of natural rain made with three different types of disdrometers collocated at the Iowa City Municipal Airport in Iowa City, Iowa in the Midwestern United States. This paper focuses on the evaluation of the instruments rather than analysis of the hydrometeorological aspects of the observed events. The comparison demonstrates discrepancies between instruments. The authors discuss the systematic and random effects in terms of rainfall quantities, drop size distribution properties, and the observed drop size vs. velocity relationships. Since the instruments were collocated, the effects of the natural variability of rain are reduced some with time integration, isolating the instrumental differences. The authors discuss the status of DSD measurement technologies and the implications for a range of hydrologic applications from remote sensing of rainfall to atmospheric deposition to soil erosion and sediment transport in the environment. The data set collected during the DEVEX experiment is made available to the research community.
Details
- Title: Subtitle
- DEVEX-disdrometer evaluation experiment: Basic results and implications for hydrologic studies
- Creators
- Witold F Krajewski - IIHR–Hydroscience & Engineering, The University of Iowa, 300 South Riverside Drive, Iowa City, IA 52242-1585, USAAnton Kruger - IIHR–Hydroscience & Engineering, The University of Iowa, 300 South Riverside Drive, Iowa City, IA 52242-1585, USAClelia Caracciolo - Department of Physics, University of Ferrara, Ferrara, ItalyPeter Golé - Centre d’Etudes des Environnements Terrestre et Planétaires, Vélizy, FranceLaurent Barthes - Centre d’Etudes des Environnements Terrestre et Planétaires, Vélizy, FranceJean-Dominique Creutin - Laboratoire d’Étude des Transfers en Hydrologie et Environment, Grenoble, FranceJean-Yves Delahaye - Centre d’Etudes des Environnements Terrestre et Planétaires, Vélizy, FranceEfthymios I Nikolopoulos - IIHR–Hydroscience & Engineering, The University of Iowa, 300 South Riverside Drive, Iowa City, IA 52242-1585, USAFred Ogden - Department of Civil and Environmental Engineering, The University of Connecticut, Storrs, Connecticut, USAJean-Paul Vinson - Centre d’Etudes des Environnements Terrestre et Planétaires, Vélizy, France
- Resource Type
- Journal article
- Publication Details
- Advances in water resources, Vol.29(2), pp.311-325
- DOI
- 10.1016/j.advwatres.2005.03.018
- ISSN
- 0309-1708
- eISSN
- 1872-9657
- Publisher
- Elsevier Ltd
- Language
- English
- Date published
- 2006
- Academic Unit
- Electrical and Computer Engineering; Civil and Environmental Engineering
- Record Identifier
- 9983992037502771
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