Academic Journals Database
Disseminating quality controlled scientific knowledge

Radar rainfall estimates in an alpine environment using inverse hydrological modelling

ADD TO MY LIST
 
Author(s): A. Marx | H. Kunstmann | A. Bárdossy | J. Seltmann

Journal: Advances in Geosciences
ISSN 1680-7340

Volume: 9;
Start page: 25;
Date: 2006;
VIEW PDF   PDF DOWNLOAD PDF   Download PDF Original page

ABSTRACT
The quality of hydrological modelling is limited due to the restricted availability of high resolution temporal and spatial input data such as temperature, global radiation, and precipitation. Radar-based rain measurements provide good spatial information. On the other hand, using radar data is accompanied by basic difficulties such as clutter, shielding, variations of Z/R-relationships, beam-resolution and attenuation. Instead of accounting for all errors involved separately, a robust Z/R-relationship is estimated in this study for the short range (up to 40 km distance) using inverse hydrological modelling for a continuous period of three months in summer 2001. River gauge measurements from catchment sizes around 100 km2 are used to estimate areal precipitation and finally Z/R-relationships using a calibrated hydrological model. The study is performed in the alpine Ammer catchment with very short reaction times of the river gauges to rainfall events.

Tango Jona
Tangokurs Rapperswil-Jona

     Save time & money - Smart Internet Solutions