Naslov
Dust deposition in the Adriatic Sea; climatology and possible impact on marine production

Autori
Boris Mifka, Maja Telišman Prtenjak, Josipa Kuzmić, Milan Čanković, Sarah Mateša, Irena Ciglenečki

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

Izvornik
Kratki sažetci / - , 2022, 50-50

Skup
Meteorološki izazovi 8

Mjesto i datum
Zagreb, Hrvatska, 28.04.2022. - 29.04.2022

Vrsta sudjelovanja
Poster

Vrsta recenzije
Recenziran

Ključne riječi
Desert dust, Climatology, EOF, Adriatic Sea, Primary production, Rogoznica lake

Sažetak
Atmospheric mineral dust deposition plays an important role in providing nutrients to marine ecosystems. In this study, the climatology of dust deposition in the Adriatic Sea area was determined for the first time based on MERRA-2 reanalysis from 1989 to 2019. The annual cycle of deposition exhibits two maxima: a stronger in March-April and weaker in November. Wet deposition is a dominant process with a relative contribution to overall deposition from 67.35% to 88.53%. Deposition hot spots are along the Montenegrian coast and Otrant. The average contribution of dust deposition events (DDEs) is 16.5% ( 60.2 dy yr-1), with the strongest deposition during the 1999-2009 and positive trend in deposited mass during study period. Dust deposition effect on primary production is observed by a high level of oxygen saturation up to 250% (usually is lower, up to 150%) in the stratified middle water layer (5 – 8 m) of the central Adriatic marine system (Rogoznica Lake) during intense wet deposition episode. Such extreme values of oxygen saturation can be taken as an indication of biological activity related to increase in phytoplankton abundance and activity, diatoms in particular. The authors acknowledge the financial support from the project “Marine Rogoznica Lake as a model for ecosystem functioning in the changing environment” (MARRES, IP-2018-01-1717), the University of Rijeka (project uniri-prirod-18-232), and Faculty of Science, University of Zagreb.

Izvorni jezik
Engleski

Znanstvena područja
Kemija, Biologija, Geofizika, Interdisciplinarne prirodne znanosti

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