Is daily precipitation Gamma-distributed? Adverse effects of an incorrect use of the Kolmogorov-Smirnov test

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378289%3A_____%2F09%3A00328587" target="_blank" >RIV/68378289:_____/09:00328587 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Is daily precipitation Gamma-distributed? Adverse effects of an incorrect use of the Kolmogorov-Smirnov test

Popis výsledku v původním jazyce

The applicability of the Gamma distribution for the description of daily precipitation amounts within a single winter, spring, summer, and autumn season is tested on 90 European stations. The Lilliefors modi?cation of the Kolmogorov?Smirnov (KS) test isused to assess the goodness-of-?t of the Gamma distribution to daily precipitation in every year and season of the reference period. The possible rejection of the Gamma distribution for a particular station and season is based on the number of years in which the distribution is rejected. The results are compared with those obtained from the non-modi?ed KS test, whose application is incorrect when the ?t to the theoretical distribution is tested on the same data from which its parameters were estimated.We con?rm that the two tests yield considerably different results. The validity of the Gamma dist. is not as wide as it is commonly believed: in winter, precipitation at more than 40% of the examined stations is not Gamma-distributed.

Název v anglickém jazyce

Is daily precipitation Gamma-distributed? Adverse effects of an incorrect use of the Kolmogorov-Smirnov test

Popis výsledku anglicky

The applicability of the Gamma distribution for the description of daily precipitation amounts within a single winter, spring, summer, and autumn season is tested on 90 European stations. The Lilliefors modi?cation of the Kolmogorov?Smirnov (KS) test isused to assess the goodness-of-?t of the Gamma distribution to daily precipitation in every year and season of the reference period. The possible rejection of the Gamma distribution for a particular station and season is based on the number of years in which the distribution is rejected. The results are compared with those obtained from the non-modi?ed KS test, whose application is incorrect when the ?t to the theoretical distribution is tested on the same data from which its parameters were estimated.We con?rm that the two tests yield considerably different results. The validity of the Gamma dist. is not as wide as it is commonly believed: in winter, precipitation at more than 40% of the examined stations is not Gamma-distributed.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

DG - Vědy o atmosféře, meteorologie

OECD FORD obor

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Projekt

<a href="/cs/project/IAA300420806" target="_blank" >IAA300420806: Pravděpodobnostní scénáře klimatu pro Českou republiku</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Atmospheric Research

ISSN

0169-8095

e-ISSN

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Svazek periodika

93

Číslo periodika v rámci svazku

4

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

000268352000009

EID výsledku v databázi Scopus

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