Dense water formation and BiOS-induced variability in the Adriatic Sea simulated using an ocean regional circulation model

Dunić, Natalija; Vilibić, Ivica; Šepić, Jadranka; Somot, Samuel; Sevault, Florence

doi:10.1007/s00382-016-3310-5

Cited by 13 publications

(12 citation statements)

References 86 publications

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“…They explore the atmospheric and oceanic factors explaining the interannual variability of the phenomena as well as its observed long-term trend. On the contrary, Dunić et al (2016) find that a stateof-the-art Ocean RCM shows large deficiencies in reproducing the deep water formation in the Adriatic Sea as well as the bimodal oscillation in the Ionian Sea (the so called BiOS phenomenon). This currently limits the possibility to use such a model to help understanding the ocean variability of the Central Mediterranean Sea.…”

Section: Processes and Phenomena Understandingmentioning

confidence: 91%

“…Somot et al (2016) perform a thorough reanalysis of past observations over the north-western Mediterranean Sea to derive the most complete ever time series characterizing the deep water mass formation interannual variability in this zone. Dunić et al (2016) also aggregate a very long time series of recurrent CTD transects allowing to qualify for the first time climate-scale ocean models for the Adriatic Sea. Fantini et al (2016) aggregate all the recently-available high-resolution (about 10-km) gridded reference datasets for daily precipitation in Europe to evaluate precipitation statistics in Med-CORDEX and Euro-CORDEX simulations.…”

Section: New Reference Datasets For Med-cordex Model Evaluationmentioning

confidence: 99%

“…Other studies of the special issue focus on the evaluation of specific climate phenomena of the region such as the cyclones (Flaounas et al 2016; Sanchez-Gomez and Somot 2016), the medicanes (Gaertner et al 2016), the cloud cover (Chakroun et al 2016), the ocean deep water formation (Somot et al 2016;Dunić et al 2016), the regional winds (Obermann et al 2016) and the sea breeze (Drobinski et al 2017).…”

Section: Model Evaluationmentioning

confidence: 99%

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Editorial for the Med-CORDEX special issue

et al. 2018

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Section: Processes and Phenomena Understandingmentioning

confidence: 91%

Section: New Reference Datasets For Med-cordex Model Evaluationmentioning

confidence: 99%

Section: Model Evaluationmentioning

confidence: 99%

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Editorial for the Med-CORDEX special issue

et al. 2018

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“…This was followed by applications to oceanography (e.g., Liu & Weisberg, ; Richardson et al, ), and such initial SOM applications to meteorology and oceanography are reviewed in Liu and Weisberg (). Some of the more recent oceanography applications of SOM are provided by Dunić et al (), Hisaki et al (), and Huang et al ().…”

Section: Methodsmentioning

confidence: 99%

On the Loop Current Penetration into the Gulf of Mexico

Weisberg

Liu

2017

JGR Oceans

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The Gulf of Mexico Loop Current generally intrudes some distance into the Gulf of Mexico before shedding an anticyclonic eddy and retreating back to its more direct entry to exit pathway. The control of this aperiodic process remains only partially known. Here we describe the evolution of the Loop Current throughout the era of satellite altimetry, and offer a mechanistic hypothesis on Loop Current intrusion. As a complement to the known effects of Loop Current forcing on the west Florida shelf circulation, we argue that the west Florida shelf, in turn, impacts the Loop Current evolution. A Self‐Organizing Map analysis shows that anomalous northward penetrations of the Loop Current into the Gulf of Mexico occur when the eastern side of Loop Current is positioned west from the southwest corner of the west Florida shelf, whereas the more direct inflow to outflow route occurs when the eastern side of the Loop Current comes in contact with the southwest corner of the west Florida shelf. In essence, we argue that the west Florida shelf anchors the Loop Current in its direct path configuration and that farther northward penetration into the Gulf of Mexico occurs when such anchoring is released. To test of this hypothesis heuristically, we estimate that the dissipation and buoyancy work due to known Loop Current forcing of the west Florida shelf circulation (when in contact with the southwest corner) may exceed the pressure work required for the Loop Current to advance against the ambient Gulf of Mexico fluid.

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“…NEMOMED8 has already been used in a number of regional Mediterranean Sea modeling studies, either in hindcast mode (Beuvier et al, 2010;Herrmann et al, 2010;Sevault et al, 2014;Soto-Navarro et al, 2015;Dunic et al, 2016) or scenario mode (Adloff et al, 2015). It produces the main characteristics of the Mediterranean Sea circulation.…”

Section: Evaluation Of the Nemomed8-pisces Modelmentioning

confidence: 99%

Biogeochemical response of the Mediterranean Sea to the transient SRES-A2 climate change scenario

et al. 2019

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Abstract. The Mediterranean region is a climate change hotspot. Increasing greenhouse gas emissions are projected to lead to a substantial warming of the Mediterranean Sea as well as major changes in its circulation, but the subsequent effects of such changes on marine biogeochemistry are poorly understood. Here, our aim is to investigate how climate change will affect nutrient concentrations and biological productivity in the Mediterranean Sea. To do so, we perform transient simulations with the coupled high-resolution model NEMOMED8-PISCES using the high-emission IPCC Special Report on Emissions Scenarios (SRES) A2 socioeconomic scenario and corresponding Atlantic, Black Sea, and riverine nutrient inputs. Our results indicate that nitrate is accumulating in the Mediterranean Sea over the 21st century, while phosphorus shows no tendency. These contrasting changes result from an unbalanced nitrogen-to-phosphorus input from riverine discharge and fluxes via the Strait of Gibraltar, which lead to an expansion of phosphorus-limited regions across the Mediterranean. In addition, phytoplankton net primary productivity is reduced by 10 % in the 2090s in comparison to the present state, with reductions of up to 50 % in some regions such as the Aegean Sea as a result of nutrient limitation and vertical stratification. We also perform sensitivity tests to separately study the effects of climate and biogeochemical input changes on the future state of the Mediterranean Sea. Our results show that changes in nutrient supply from the Strait of Gibraltar and from rivers and circulation changes linked to climate change may have antagonistic or synergistic effects on nutrient concentrations and surface primary productivity. In some regions such as the Adriatic Sea, half of the biogeochemical changes simulated during the 21st century are linked with external changes in nutrient input, while the other half are linked to climate change. This study is the first to simulate future transient climate change effects on Mediterranean Sea biogeochemistry but calls for further work to characterize effects from atmospheric deposition and to assess the various sources of uncertainty.

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Dense water formation and BiOS-induced variability in the Adriatic Sea simulated using an ocean regional circulation model

Cited by 13 publications

References 86 publications

Editorial for the Med-CORDEX special issue

Editorial for the Med-CORDEX special issue

On the Loop Current Penetration into the Gulf of Mexico

Biogeochemical response of the Mediterranean Sea to the transient SRES-A2 climate change scenario

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