Naslov
Spatial Interpolation of Precipitation on the Cetina River Catchment

Autori
Ljubenkov Igor ; Bonacci Ognjen ; Andricevic Roko

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
BALOWOIS 2008 Abstracts / Morell, M., Popovska, C., Morell, O., Stojov, V., Kostoski, G., Dimitrov, D., Radic, Z., Selenica, A. - Ohrid : Gradežen fakultet, Skopje, Macedonia, 2008, 48-49

ISBN
978-608-4510-00-0

Skup
Conference on water observation and information system for decision support,

Mjesto i datum
Ohrid, Sjeverna Makedonija, 27.05.2008. - 31.05.2008

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
Cetina River; precipitation; geostatistical methods

Sažetak
This study deals with the spatial estimation of the storm precipitation in the Cetina River Catchment. The river is 105 km in length and completely flows through Dalmatia, the Croatian south region. The River catchment is a highland area of about 4142 km2, divided by the Dinara mountain into two parts. The western part has area of 1721 km2. It is „ direct" or topographic catchment, almost entirely situated in Croatia, while climate is under strong influence of the Adriatic Sea. The eastern part of catchment (2421 km2) is referred as the „ indirect" catchment. It is mainly situated in Bosnia and Herzegovina, with continental climate. Therefore, precipitation regime is very complex and variable over catchment area. From the year 1988 four storms were analysed. Daily measurements were used to calculate total amount of precipitation for each storm. Each of them has the duration of 2 – 3 days. Ten rain gauges on the „ direct" part and eleven rain gauges on the "indirect" part were taken into account. These two parts were analysed separately due to different precipitation regimes. A few conventional methods (arithmetic average, Thiessen method, inverse square distance method, hypsometric method and isohyetal analysis) were used to calculate average precipitation on the each part of catchment, while geostatistical methods (ordinary kriging, universal kriging and kriging with external drift) were used to calculate precipitation maps and statistical accuracy. The results of regression and geostatistical analysis have shown that two storms have spatial trends with NW direction. There is a storm where precipitation is related to the elevation. On the other hand, there is a storm almost without any trends. Furthermore, spatial distributions of storm precipitations could be considerably different on the "direct" and the "indirect" part.

Izvorni jezik
Engleski

Znanstvena područja
Geologija

Napomena
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