Naslov
Maximum precipitation for different short-term intervals

Autori
Gajić-Čapka, Marjana

Izvornik
Theoretical and Applied Climatology (0177-798X) 41 (1990); 33-39

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
normal series length; short-term precipitation; trend analysis; Sperman rank correlation test; Gumbel distribution; Zagreb; Croatia

Sažetak
A time series and extreme value analysis of maximum precipitation for distinct time intervals from 10 minutes to 1 day have been deduced for the observatory Zagreb-grič(45°49', 15°59', 157m) for the period between 1908 and 1985. The Spearman rank correlation test reveald that the short-term precipitation maxima series for the time intervals of 10 to 30 minutes and 8 to 24 hours indicate no significant trend for the 95 percent probability level. The 40-minute to 4-hour precipitation maxima exhibited an increase in recent time. Annual maximumt-minute precipitationwas estimated using the Gumbel distribution for sets of data gradually prolonged with 10-year steps towards the past. The ratios (q) of maximum precipitation estimates for the shorter periods and of estimates for the reference period (1908-1985) have been calculated. Their positions according to the confidence interval on the reference estimates were determine. Confident extreme value estimates could be obtained using at least the 50-60 year data series.

Izvorni jezik
Engleski

POVEZANOST RADA