SPATIAL INTERPOLATION OF HOURLY GAUGE AND RADAR PRECIPITATION DURING MAP SOP

Autor: Jože Rakovec, Mojca Dolinar, Miha Demšar, Stefano Micheletti
Jazyk: angličtina
Rok vydání: 2005
Předmět:
Zdroj: Hrvatski meteorološki časopis
Volume 40
Issue 40
ISSN: 1849-0700
1330-0083
Popis: During MAP SOP (fall 1999) a network of additional automatic rain gauges was installed in the mountains of western Slovenia. The meteorological radar in Fossalon (OSMER, FVG) was operational as well. Raingauges are considered to provide measurements with good point accuracy, but offer little information on the spatial variability of precipitation. On the other hand the radar measurements give very good image of spatial distribution of precipitation, but the absolute quantity of precipitation is unreliable due to several systematic errors, especially occultation in mountainous areas. Different geostatistical approaches are tested to improve spatial distribution of precipitation, using raingauge and radar measurements. The spatial distribution of precipitation shows that the location of precipitation maxima is well correlated to the topographic features of the area and that the operational automatic gauge network is not dense enough to detect the spatial variability of precipitation in a scale of individual watersheds. The use of additional MAP data proved to be of great use, for example for such event as the one of heavy rainfall and debris flow in Loška Koritnica Valley in 2000.
Databáze: OpenAIRE