The described application involves the use of external drift method to calibrate radar raingauges when estimating rainfall fields. The estimates of rainfall fields for times of half-hour or one-hour intervals and with a high spatial resolution are needed as on-line inputs for hydrological simulations aimed at predicting flood flows. Cross-validation results indicate that precision can be improved by integrating the data from radar raingauges with those from ground gauges, but that the improvement occurs only when there is a high correlation between the two sets of data. Estimating quality is equal to that provided by cokriging, with the difference that the latter method is too laborious for on-line applications.
Reconstruction of rainfall fields by combining ground raingauges data with radar maps using external drift method / Raspa G.; Tucci M.; Bruno R.. - STAMPA. - (1999), pp. 1306-1315. (Intervento presentato al convegno Fifth International Geostatistical Congress tenutosi a Wollongong, Australia nel September 1996).
Reconstruction of rainfall fields by combining ground raingauges data with radar maps using external drift method
Bruno R.
1999
Abstract
The described application involves the use of external drift method to calibrate radar raingauges when estimating rainfall fields. The estimates of rainfall fields for times of half-hour or one-hour intervals and with a high spatial resolution are needed as on-line inputs for hydrological simulations aimed at predicting flood flows. Cross-validation results indicate that precision can be improved by integrating the data from radar raingauges with those from ground gauges, but that the improvement occurs only when there is a high correlation between the two sets of data. Estimating quality is equal to that provided by cokriging, with the difference that the latter method is too laborious for on-line applications.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
