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| Titel |
Extreme Flooding in Urban Environments: Analyses from the Baltimore Ecosystem Study |
| VerfasserIn |
K. L. Meierdiercks, J. A. Smith, G. Villarini, A. J. Miller, M. L. Baeck |
| Konferenz |
EGU General Assembly 2009
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 11 (2009) |
| Datensatznummer |
250024090
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| Zusammenfassung |
| Empirical and modeling studies of extreme flooding for small urban watersheds are
carried out for the experimental watersheds of the Baltimore Ecosystem Study, a
component of the US National Science Foundation-²s Long-Term Ecological Research
(LTER) program. Analyses focus on the densely monitored Dead Run watershed,
which has a drainage area of 14.3 km2. Modeling analyses utilize comprehensive
digital data sets characterizing urban infrastructure of the watershed, including the
storm drain network and stormwater detention facilities, as well as high-resolution
data sets on impervious cover. Three major flood events in Dead Run are analyzed
to characterize the role of urbanization for extreme flood response. Two of these
events (7 July 2004 and 28 June 2005) are produced by organized thunderstorm
systems and one (18 September 2003) is produced by Hurricane Isabel. Weather
radar observations, storm total rainfall observations from a dense urban rain gage
network, and disdrometer observations of raindrop size distributions are used to
examine the spatial and temporal heterogeneity of flash flood producing rainfall. |
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