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Pregled bibliografske jedinice broj: 1006523

Standard Normal Homogeneity Test as a Tool to Detect Climate-Related River Discharge Variation Change Points


Pandzić, Krešo; Kobold, Mira; Oskoruš, Dijana; Biondic, Božidar; Biondić, Ranko; Bonacci, Ognjen; Likso, Tanja; Curić, Oliver
Standard Normal Homogeneity Test as a Tool to Detect Climate-Related River Discharge Variation Change Points // Hydrological Sciences Journal (2019) (znanstveni, prihvaćen)


Naslov
Standard Normal Homogeneity Test as a Tool to Detect Climate-Related River Discharge Variation Change Points

Autori
Pandzić, Krešo ; Kobold, Mira ; Oskoruš, Dijana ; Biondic, Božidar ; Biondić, Ranko ; Bonacci, Ognjen ; Likso, Tanja ; Curić, Oliver

Vrsta, podvrsta
Radovi u časopisima, znanstveni

Izvornik
Hydrological Sciences Journal (2019)

Status rada
Prihvaćen

Ključne riječi
Time series, homogenization, homogeneity testing, Kupa River discharge, Slovenia, Croatia

Sažetak
The study addresses homogeneity testing of the annual discharge time series for eight hydrological stations and five climate time series in the Kupa River Basin, located between Slovenia and Croatia, and global annual average surface temperature time series for the period 1961-2010. The Standard Normal Homogeneity Test (SNHT) was used for the purpose, detecting both abrupt and gradual linear trend homogeneity breaks. In addition to an experiment in which the SNHT was used for relative artificial homogeneity testing, the SNHT was also used for alternative absolute homogeneity testing of artificial and natural shifts and gradual trends due to the inconsistency in natural climate variations between candidate and reference discharge time series. The results revealed natural change points of the examined discharge time series regime at the beginning of the 1980s. Absolute homogeneity testing of average annual weather station level air pressure, annual precipitation totals, differences between precipitation annual totals and potential evapotranspiration and surface run- off, from the observation point of view independent time series, confirmed an abrupt shift, also at the beginning of the 1980s. Indicated trend of local air temperature for the period 1985-2000 and global surface temperature trend for the period 1974-2005, respectively, strengthened river discharge regime shift since beginning of 1980s onward. These results could improve climate variation monitoring and estimation of the impact of climate variation on the environment in the area. Generally, an indication of climate regime change points and an assessment of their duration could provide significant benefits for the society.

Izvorni jezik
Engleski

Znanstvena područja
Fizika, Interdisciplinarne tehničke znanosti

Časopis indeksira:


  • Current Contents Connect (CCC)
  • Web of Science Core Collection (WoSCC)
    • Science Citation Index Expanded (SCI-EXP)
    • SCI-EXP, SSCI i/ili A&HCI
  • Scopus