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Analiza presušitve rek v Sloveniji = Analysis of river drying in Slovenia [Elektronski vir]Cvelfer Domadenik, Jan ; Šraj, Mojca, hidrologija ; Kobold, MiraPresihajoči vodotoki so v določenih obdobjih leta brez vode, kar velja zlasti za kraške ponikalnice. Do presušitev pa prihaja tudi v sušnih obdobjih kot posledica primanjkljaja padavin v daljšem ... časovnem obdobju. V prispevku smo na podlagi podatkov državnega hidrološkega monitoringa Agencije Republike Slovenije za okolje analizirali presušitve rek v Sloveniji. Z analizo obdobnih statistik najmanjših malih pretokov (nQnp) smo izluščili 18 vodomernih postaj, na katerih so struge vodotokov v obdobju meritev presušile. Za te postaje smo v nadaljevanju analizirali nize srednjih dnevnih pretokov in identificirali suhe dneve, v katerih je bil pretok enak nič. Število suhih dni in število zaporednih suhih dni smo analizirali po mesecih in letih ter določili najdaljša sušna obdobja. Rezultate smo prikazali grafično. Na večini obravnavanih vodomernih postaj je število suhih dni največje v letih največjih hidroloških suš, tj. v letih 2003, 2012 in 1993. Na nekaterih vodotokih so presušitve stalen pojav, ki se zgodi skoraj vsako leto, na drugih so se presušitve zgodile le v letih z najhujšo sušo. Izjema so kraške reke, ki poniknejo in so iz tega razloga del leta suhe. Redno presušita reki Pivka in Branica. Zelo pogosto presušijo vodotoki v Pomurju ter Velunja, Kožbanjšček in Dragonja. Rezultati analize so pokazali, da so v zadnjih dveh desetletjih presušitve pogostejše. Najbolj sušni mesec je avgust, sledita mu julij in september.Source: Acta hydrotechnica [Elektronski vir]. - ISSN 1581-0267 (Letn. 36, št. 65, 2023, str. 123-137)Type of material - e-articlePublish date - 2023Language - slovenianCOBISS.SI-ID - 192601859
Author
Cvelfer Domadenik, Jan |
Šraj, Mojca, hidrologija |
Kobold, Mira
Topics
hidrološka suša |
najmanjši mali pretok |
vodomerna postaja |
število suhih dni |
število zaporednih suhih dni |
hydrological drought |
minimum low discharge |
water gauging station |
number of dry days |
number of consecutive dry days
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Database name | Field | Year |
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Links to authors' personal bibliographies | Links to information on researchers in the SICRIS system |
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Cvelfer Domadenik, Jan | |
Šraj, Mojca, hidrologija | 16258 |
Kobold, Mira | 12293 |
Source: Personal bibliographies
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