A high resolution wind and wave forecast model chain for the Mediterranean & Adriatic Sea

2015 ◽  
pp. 879-886
Keyword(s):  
High Resolution ◽  
Adriatic Sea ◽  
Forecast Model ◽  
Wave Forecast ◽  
The Mediterranean ◽  
Model Chain

scholarly journals Nettuno: Analysis of a Wind and Wave Forecast System for the Mediterranean Sea

2013 ◽  
Vol 141 (9) ◽  
pp. 3130-3141 ◽  
Author(s):  
Luciana Bertotti ◽  
Luigi Cavaleri ◽  
Layla Loffredo ◽  
Lucio Torrisi
Keyword(s):  
High Resolution ◽  
Detailed Analysis ◽  
Mediterranean Sea ◽  
Altimeter Data ◽  
Forecast System ◽  
Extensive System ◽  
Wave Forecast ◽  
Wave Heights ◽  
The Mediterranean ◽  
Positive Results

Abstract Nettuno is a wind and wave forecast system for the Mediterranean Sea. It has been operational since 2009 producing twice-daily high-resolution forecasts for the next 72 h. The authors have carried out a detailed analysis of the results, both in space and time, using scatterometer and altimeter data from four different satellites. The findings suggest that there are appreciable differences in the measurements from the different instruments. Within the overall positive results, there is also evidence of differences in Nettuno performance for the various subbasins. The related geographical distributions in Nettuno performance are consistent with the various satellite instruments used in the comparisons. The extensive system of buoys around Italy is used to highlight the difficulties involved in a correct modeling of wave heights in Italy's coastal areas.

scholarly journals Observations on the Feeding of Drymonema dalmatinum in the Gulf of Trieste

Diversity ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 163
Author(s):  
Saul Ciriaco ◽  
Lisa Faresi ◽  
Marco Segarich
Keyword(s):  
Mediterranean Sea ◽  
Adriatic Sea ◽  
Gulf Of Trieste ◽  
The Mediterranean ◽  
Scyphozoan Jellyfish

The largest scyphozoan jellyfish of the Mediterranean Sea, Drymonema dalmatinum was first described by Haeckel [1] from material collected off the Dalmatian coast of the Adriatic Sea [...]

Venerid bivalve Venus verrucosa as a high-resolution archive of seawater temperature in the Mediterranean Sea

2021 ◽  
Vol 561 ◽  
pp. 110057
Author(s):  
Hana Uvanović ◽  
Bernd R. Schöne ◽  
Krešimir Markulin ◽  
Ivica Janeković ◽  
Melita Peharda
Keyword(s):  
High Resolution ◽  
Mediterranean Sea ◽  
Seawater Temperature ◽  
The Mediterranean

scholarly journals Climate Change Impacts Assessment on Wine-Growing Bioclimatic Transition Areas

Agriculture ◽  
2020 ◽  
Vol 10 (12) ◽  
pp. 605
Author(s):  
Alba Piña-Rey ◽  
Estefanía González-Fernández ◽  
María Fernández-González ◽  
Mª. Nieves Lorenzo ◽  
Fco. Javier Rodríguez-Rajo
Keyword(s):  
Climate Change ◽  
High Resolution ◽  
Climate Change Impacts ◽  
Mediterranean Area ◽  
Cultural Practice ◽  
Climatic Conditions ◽  
Study Region ◽  
Bioclimatic Indices ◽  
Northwestern Spain ◽  
The Mediterranean

Viticultural climatic indices were assessed for the evaluation of the meteorological variations in the requirements of wine cultivars. The applied bioclimatic indices have been widely used to provide an initial evaluation of climate change impacts on grapevine and to delineate wine regions and suitable areas for planting around the world. The study was carried out over a period of 16 years (from 2000 to 2015) in five Designation of Origin areas in Northwestern Spain located in the Eurosiberian region, the transition zone between the Eurosiberian and the Mediterranean areas, and in the Mediterranean area. In addition, the high-resolution meteorological dataset “Spain02” was applied to the bioclimatic indices for the period 1950–2095. To further assess the performance of “Spain02”, Taylor diagrams were elaborated for the different bioclimatic indices. A significant trend to an increase of the Winkler, Huglin, Night Cold Index and GSS Indices was detected in the North-western Spain, whereas slight negative trends for BBLI and GSP Indices were observed. To analyze future projections 2061–2095, data from the high-resolution dynamically downscaled daily climate simulations from EURO-CORDEX project were used. To further assess the performance of Spain02, Taylor diagrams were elaborated for the different bioclimatic indices. A trend to an increase of the Winkler, Huglin, Night Cold Index and GSP Indices was detected in Northwestern Spain, whereas slight negative trends for BBLI and GSP Indices were observed. Our results showed that climatic conditions in the study region could variate for the crop in the future, more for Mediterranean than Eurosiberian bioclimatic area. Due to an advance in the phenological events or the vintage data, more alcohol-fortified wines and variations in the acidity level of wines could be expected in Northwestern Spain, these processes being most noticeable in the Mediterranean area. The projections for the BBLI and GSP Indices will induce a decrease in the pressure of the mildew attacks incidence in the areas located at the Eurosiberian region and the nearest transition zones. Projections showed if the trend of temperature increase continues, some cultural practice variations should be conducted in order to preserve the grape cultivation suitability in the studied area.

scholarly journals First record of the Combtooth Blenny, Microlipophrys adriaticus (Steindachner & Kolombatovic, 1883) (Pisces, Blenniidae), for the Italian Ionian Sea

Check List ◽  
2015 ◽  
Vol 11 (3) ◽  
pp. 1646 ◽  
Author(s):  
F. Tiralongo ◽  
R. Baldacconi
Keyword(s):  
Mediterranean Sea ◽  
Black Sea ◽  
Adriatic Sea ◽  
First Record ◽  
The Black Sea ◽  
Ionian Sea ◽  
Sea Of Marmara ◽  
Limited Distribution ◽  
The North ◽  
The Mediterranean

Microlipophrys adriaticus (Steindachner & Kolombatovic, 1883) is an endemic blenny of the Mediterranean Sea. It is also known from the Sea of Marmara and the Black Sea. However, unlike other species of combtooth blennies, M. adriaticus is a fish with a limited distribution in Adriatic Sea, especially in the north, where it can be common. We report here the first record of this species from the waters of the Ionian Sea.

North Atlantic Oscillation-related impacts on precipitation over the Italian Peninsula during the 1979-2020 period

2021 ◽  
Author(s):  
Paula Lorenzo Sánchez ◽  
Leonardo Aragão
Keyword(s):  
High Resolution ◽  
North Atlantic Oscillation ◽  
North Atlantic ◽  
Mediterranean Region ◽  
Italian Peninsula ◽  
The North ◽  
Nao Index ◽  
The North Atlantic ◽  
The Mediterranean ◽  
Resolution Dataset

<p>The North Atlantic Oscillation (NAO) has been widely recognized as one of the main patterns of atmospheric variability over the northern hemisphere, helping to understand variations on the North Atlantic Jet (NAJ) position and its influence on storm-tracks, atmospheric blocking and Rossby Wave breaking. Among several relevant teleconnection patterns identified through different timescales, the most prominent ones are found for northern Europe during winter months, when positive (negative) phases of NAO are related to wetter (drier) conditions. Although it is not well defined yet, an opposite connection is observed for the Mediterranean region, where negative NAO values are often associated with high precipitation. Therefore, the main goal of this study is to identify which regions and periods of the year are the most susceptible to abundant NAO-related precipitation throughout the Italian Peninsula. For doing so, the last 42 years period (1979-2020) was analysed using the Fifth Generation ECMWF Atmospheric ReAnalysis of the Global Climate (ERA5). The NAO index was calculated using the Mean Sea Level Pressure (MSLP) extracted from the nearest gridpoints to Reykjavik, Ponta Delgada, Lisbon and Gibraltar, with a time resolution of one hour and horizontal spatial resolution of 0.25ºx0.25º. Both NAO index and MSLP time series were validated for different timescales (hourly, daily, monthly and seasonal) using the Automated Surface Observing System data and the Climatic Research Unit (CRU) high-resolution dataset (based on measured data). High correlations, ranging from 0.92 to 0.98, were found for all stations, timescales and evaluated parameters. To quantify the influence of NAO over the Mediterranean region, the monthly averaged ERA5 ‘total precipitation’ data over the Italian Peninsula [35-48º N; 5-20º E] were used. As expected, the results concerning NAO x Precipitation presented the best correlations when analysed monthly, confirming some of the already known NAO signatures over the Italian Peninsula: higher correlations during winter and over the Tyrrhenian coast, and lower correlations during summer and over the Apennines, the Adriatic Sea and the Ionian Sea. On the other hand, the precipitation over the Alps and the Tunisian coast presented a remarkable signature of positive NAO values that, despite a lower statistical significance (85-90%), is in agreement with recent findings of observational studies. In addition, significant negative correlations were identified for the spring and autumn months over the Tyrrhenian area. Among those, the high correlations found during May are particularly interesting, as they follow the behaviour described in recent studies performed using the same high-resolution dataset (ERA5), which have identified an increased number of cyclones over the Mediterranean during this month. This connection suggests that NAO could also be used to explore the potential penetration of the North Atlantic depressions into the Mediterranean Basin. </p><p>Keywords: NAO; Teleconnections; ERA5; ReAnalysis; Mediterranean; Climatology.</p>

Nitrogen isotope sclerochronology - insights into coastal environmental conditions and Pinna nobilis ecology

2021 ◽  
Author(s):  
Melita Peharda ◽  
David Gillikin ◽  
Bernd Schöne ◽  
Anouk Verheyden-Gillikin ◽  
Hana Uvanović ◽  
...  
Keyword(s):  
High Resolution ◽  
Shell Growth ◽  
Time Interval ◽  
Shell Surface ◽  
Growth Axis ◽  
Pinna Nobilis ◽  
External Shell ◽  
Isotopic Baseline ◽  
The Mediterranean ◽  
Shell Powder

<p><em>Pinna nobilis</em> is a large bivalve endemic to the Mediterranean Sea that lives in shallow coastal areas. Due to its size and relatively fast shell growth rates, it is an interesting taxon for high resolution geochemical and sclerochronological research. Subsequently to previous analyses of δ<sup>18</sup>O and δ<sup>13</sup>C in <em>P. nobilis</em> shells, here, we investigate nitrogen isotopes in the carbonate-bound organic matrix (δ<sup>15</sup>N<sub>CBOM</sub>) of this species. Our objectives were to test if <em>P. nobilis</em> shells (i) can be used as an indicator of the isotopic baseline of the system, and (ii) is a good candidate for obtaining high-resolution temporal data on environmental δ<sup>15</sup>N variability. Due to the multiple mass mortality events of <em>P. nobilis</em> spreading throughout the Mediterranean, including the Adriatic Sea, we also tested if (iii) <em>P. nobilis</em> geochemistry changes as a response to diseases.</p><p>Shells were opportunistically collected by skin diving from 4 shallow coastal localities in the eastern Adriatic, as a part of a project on mortality monitoring. Specimens from Lim channel (October 2019), Kaštela Bay (January 2020) and Mali Ston Bay (November 2019) were collected alive, while in Pag Bay, shells of three recently dead specimens were collected in September 2020. Tissue and epibionts were removed and shells carefully cleaned and air-dried. Shell powder was collected by milling sample swaths by hand using a DREMEL Fortiflex drill equipped with a 300 μm tungsten carbide drill bit. For δ<sup>15</sup>N<sub>CBOM</sub> analysis, three shells from each locality were processed and three replicas were collected from each of these shells by milling shallow lines parallel to the growth axis from the internal shell surface. In addition, high-resolution δ<sup>15</sup>N<sub>CBOM</sub> data were obtained for one shell from Kaštela by milling lines (N=40) perpendicular to the major growth axis from the external shell surface. From this shell we also collected shell powder for δ<sup>18</sup>O<sub>shell</sub> and δ<sup>13</sup>C<sub>shell</sub> analysis to enable placing δ<sup>15</sup>N<sub>CBOM</sub> into temporal context. Isotope samples were analyzed Union College on an elemental analyzer - isotope ratio mass spectrometer.</p><p>Results indicate significant differences in δ<sup>15</sup>N<sub>CBOM</sub> between sampling localities, with lowest values recorded for shells from Pag Bay (3.73±0.36‰), and highest for shells sampled in Lim channel (7.04±0.63‰). High-resolution δ<sup>15</sup>N<sub>CBOM</sub> data obtained from the shell collected from Kaštela Bay corresponded to a time interval from spring 2018 to spring 2019. These data showed relatively small variations (5.02±0.33‰). However, δ<sup>15</sup>N<sub>CBOM</sub> values increased to 8.65±1.61‰ closest to the shell margin, and were coupled with a decrease in δ<sup>13</sup>C<sub>shell</sub> values, indicating that this animal was experiencing stressful conditions several months prior to its death. According to our findings, δ<sup>15</sup>N<sub>CBOM</sub> values serve as an indicator of the isotopic baseline of the ecosystem as well as a potential powerful tool to study bivalve physiology.</p><p>Research was the supported by the Croatian Science Foundation, research project BivACME.</p>

scholarly journals Rapid climatic variability in the west Mediterranean during the last 25 000 years from high resolution pollen data

2009 ◽  
Vol 5 (3) ◽  
pp. 503-521 ◽  
Author(s):  
N. Combourieu Nebout ◽  
O. Peyron ◽  
I. Dormoy ◽  
S. Desprat ◽  
C. Beaudouin ◽  
...  
Keyword(s):  
High Resolution ◽  
North Atlantic ◽  
Climate Reconstruction ◽  
Mediterranean Vegetation ◽  
Pollen Record ◽  
Alboran Sea ◽  
Climatic Fluctuations ◽  
The Holocene ◽  
The Mediterranean ◽  
Alborán Sea

Abstract. High-temporal resolution pollen record from the Alboran Sea ODP Site 976, pollen-based quantitative climate reconstruction and biomisation show that changes of Mediterranean vegetation have been clearly modulated by short and long term variability during the last 25 000 years. The reliability of the quantitative climate reconstruction from marine pollen spectra has been tested using 22 marine core-top samples from the Mediterranean. The ODP Site 976 pollen record and climatic reconstruction confirm that Mediterranean environments have a rapid response to the climatic fluctuations during the last Termination. The western Mediterranean vegetation response appears nearly synchronous with North Atlantic variability during the last deglaciation as well as during the Holocene. High-resolution analyses of the ODP Site 976 pollen record show a cooling trend during the Bölling/Allerød period. In addition, this period is marked by two warm episodes bracketing a cooling event that represent the Bölling-Older Dryas-Allerød succession. During the Holocene, recurrent declines of the forest cover over the Alboran Sea borderlands indicate climate events that correlate well with several events of increased Mediterranean dryness observed on the continent and with Mediterranean Sea cooling episodes detected by alkenone-based sea surface temperature reconstructions. These events clearly reflect the response of the Mediterranean vegetation to the North Atlantic Holocene cold events.

Sign in / Sign up

Export Citation Format

Share Document