DATE2022-05-27 06:51:36
TITLEAdded value of kilometer-scale coupled atmosphere-ocean climate modelling in the Adriatic region
AUTHORSClea Denamiel (1) ,Iva Tojčić (1) ,Petra Pranić (2) ,Ivica Vilibić (1)
  1. 1) Ruđer Bošković Institute, Zagreb (Croatia) ,2) Institute Of Oceanography And Fisheries, Split (Croatia)
ABSTRACTThe Adriatic climate, which strongly depends on the complex orography and geomorphology of the basin, presents many challenges for coupled atmosphere-ocean climate models. For example, during atmospherically-driven extreme events, global and regional climate models (from 100 to 10 km resolutions) can’t properly reproduce the atmosphere-ocean dynamics while kilometer-scale models better capture critical processes such as precipitations, winds, surface energy balance, etc., but are prohibitive to run for long-term simulations. The Adriatic Sea and Coast (AdriSC) modelling suite was thus developed to reproduce the atmospheric and oceanic processes at different temporal and spatial scales over the Adriatic and northern Ionian Sea. For climate studies, two approaches have been applied. First, long-term AdriSC climate simulations have been set-up to cover the present climate for the 1987-2017 period (evaluation run) and a far-future high-emission climate under the Representative Concentration Pathway (RCP) 8.5 scenario for the 2070-2100 period. Second, short-term simulations over a significant number of extreme events under present (1977-2017 period, evaluation runs) and projected future climates (RCP4.5, RCP8.5, 2060-2100 period) have been used to prove the added value of the AdriSC model. All far-future simulations were derived with the pseudo-global warming (PGW) methodology – recently extended to coupled atmosphere–ocean models – which imposes an additional climatological change (e.g., a temperature change representative of the increase in temperature between past and future climate) to the forcing used to produce the evaluation runs. In this presentation we will (1) present an overview of the AdriSC applications, (2) demonstrate the added value of kilometer-scale modelling in the Adriatic and (3) discuss the perspectives of adding a biogeochemical component to the AdriSC model to study the environmental conditions beneficial to the growth of bivalves in the Adriatic Sea.