scholarly journals Long term precipitation trends and variability within the Mediterranean region

2011 ◽  
Vol 11 (12) ◽  
pp. 3235-3250 ◽  
Author(s):  
C. M. Philandras ◽  
P. T. Nastos ◽  
J. Kapsomenakis ◽  
K. C. Douvis ◽  
G. Tselioudis ◽  
...  
Keyword(s):  
Confidence Level ◽  
Mediterranean Region ◽  
Climate Model ◽  
Future Climate ◽  
Annual Precipitation ◽  
Climatic Research Unit ◽  
Rain Season ◽  
The World ◽  
The Mediterranean

Abstract. In this study, the trends and variability of annual precipitation totals and annual rain days over land within the Mediterranean region are analyzed. Long term ground-based observations concerning, on one hand, monthly precipitation totals (1900–2010) and rain days (1965–2010) from 40 meteorological stations within the Mediterranean region were obtained from the Hellenic National Meteorological Service and the World Climate Data and Monitoring Programme (WCDMP) of the World Meteorological Organization. On the other hand, high spatial resolution (0.5° × 0.5°) gridded monthly data CRU TS 3.1 were acquired from the Climatic Research Unit, University of East Anglia, for the period 1901–2009. The two datasets were compared by means of trends and variability, while the influence of the North Atlantic Oscillation (NAO) in the Mediterranean precipitation was examined. In the process, the climatic changes in the precipitation regime between the period 1961–1990 (reference period) and the period 2071–2100 (future climate) were presented using climate model simulations (RACMO2.1/KNMI). The future climate projections were based on SRES A1B. The findings of the analysis showed that statistically significant (95% confidence level) negative trends of the annual precipitation totals exist in the majority of Mediterranean regions during the period 1901–2009, with an exception of northern Africa, southern Italy and western Iberian peninsula, where slight positive trends (not statistically significant at 95% CL) appear. Concerning the annual number of rain days, a pronounced decrease of 20 %, statistically significant (95% confidence level), appears in representative meteorological stations of east Mediterranean, while the trends are insignificant for west and central Mediterranean. Additionally, NAO index was found to be anticorrelated with the precipitation totals and the number of rain days mainly in Spain, southern France, Italy and Greece. These correlations are higher within the rain season (October–March) than the entire year. Based on the results of regional climate model RACMO2.1/KNMI, precipitation is very likely to decrease almost 20% in the period 2071–2100 compared to 1961–1990, under SRES A1B.

scholarly journals Long-Term Climate Variability in the Mediterranean Region

Atmosphere ◽  
2020 ◽  
Vol 11 (11) ◽  
pp. 1172
Author(s):  
M. Carmen Alvarez-Castro ◽  
Pedro Ribera
Keyword(s):  
Climate Variability ◽  
Mediterranean Region ◽  
Future Climate ◽  
Climate Projections ◽  
Special Issue ◽  
Past Climate ◽  
The Past ◽  
Climate Evolution ◽  
The Mediterranean

The Mediterranean region is an area where prediction at different timescales (subseasonal to decadal or even longer) is challenging. In order to help constrain future projections, the study of past climate is crucial. By improving our knowledge about the past and current climate, our confidence in understanding the future climate will be improved. In this Special Issue, information about long-term climate variability in the Mediterranean region is assessed, including in particular historical climatology and model applications to assess past climate variability, present climate evolution, and future climate projections. The seven articles included in this Special Issue explore observations, proxies, re-analyses, and models for assessing the main characteristics, processes, and variability of the Mediterranean climate. The temporal range of these articles not only covers a wide period going from the present day to as far back as 25 centuries into the past but also covers projections of future climate over the next century.

scholarly journals Do CMIP models capture long-term observed annual precipitation trends?

2021 ◽  
Author(s):  
S. M. Vicente-Serrano ◽  
R. García-Herrera ◽  
D. Peña-Angulo ◽  
M. Tomas-Burguera ◽  
F. Domínguez-Castro ◽  
...  
Keyword(s):  
Global Assessment ◽  
Climate Model ◽  
Coupled Model ◽  
Annual Precipitation ◽  
Model Intercomparison ◽  
The World ◽  
Intercomparison Project ◽  
Using Data ◽  
Precipitation Trends

AbstractThis study provides a long-term (1891–2014) global assessment of precipitation trends using data from two station-based gridded datasets and climate model outputs evolved through the fifth and sixth phases of the Coupled Model Intercomparison Project (CMIP5 and CMIP6, respectively). Our analysis employs a variety of modeling groups that incorporate low- and high-top level members, with the aim of assessing the possible effects of including a well-resolved stratosphere on the model’s ability to reproduce long-term observed annual precipitation trends. Results demonstrate that only a few regions show statistically significant differences in precipitation trends between observations and models. Nevertheless, this pattern is mostly caused by the strong interannual variability of precipitation in most of the world regions. Thus, statistically significant model-observation differences on trends (1891–2014) are found at the zonal mean scale. The different model groups clearly fail to reproduce the spatial patterns of annual precipitation trends and the regions where stronger increases or decreases are recorded. This study also stresses that there are no significant differences between low- and high-top models in capturing observed precipitation trends, indicating that having a well-resolved stratosphere has a low impact on the accuracy of precipitation projections.

scholarly journals The Mediterranean Region: between terrorism, tourism and security

2018 ◽  
Vol 1 (2) ◽  
pp. 135-148
Author(s):  
Nicoletta Varani ◽  
Enrico Bernardini
Keyword(s):  
Natural Disasters ◽  
21St Century ◽  
Mediterranean Region ◽  
Tourism Industry ◽  
Terrorist Attacks ◽  
The Political ◽  
International Conflicts ◽  
Tourist Destinations ◽  
The World ◽  
The Mediterranean

Abstract Tourism remains a very vulnerable sector and sensitive to both internal and external impacts, such as economic and social crises, natural disasters, epidemics and diseases, national and international conflicts. Among these, the most alarming threat in the 21st century remains terrorism. In this sense, this paper aims to study the effects of the increasingly frequent terrorist attacks by the extremist factions of Al-Qaeda and ISIL on the tourism industry in the Mediterranean Region. The contribution, after having discussed in general the tourism market in the Mediterranean Region, intends to highlight the impacts and repercussions of the terrorist attacks on tourism, presenting the example of Egypt and one of its best-known tourist destinations, Sharm el-Sheikh. In this sense, it is shown how, in a few years, the political instability of the country and the attacks of 2005 and 2016 have significantly reduced the influx of tourists, transforming it from one of the most visited destinations in the world in a place of increasing abandonment.

scholarly journals Assessment of gridded observations used for climate model validation in the Mediterranean region: the HyMeX and MED-CORDEX framework

2012 ◽  
Vol 7 (2) ◽  
pp. 024017 ◽  
Author(s):  
Emmanouil Flaounas ◽  
Philippe Drobinski ◽  
Marco Borga ◽  
Jean-Christophe Calvet ◽  
Guy Delrieu ◽  
...  
Keyword(s):  
Model Validation ◽  
Mediterranean Region ◽  
Climate Model ◽  
The Mediterranean

scholarly journals Ecology, Cultivation and Utilization of the Aromatic Greek Oregano (Origanum vulgare L.): A Review

2019 ◽  
Vol 47 (3) ◽  
Author(s):  
Elpiniki SKOUFOGIANNI ◽  
Alexandra D. SOLOMOU ◽  
Nicholaos G. DANALATOS
Keyword(s):  
Essential Oil ◽  
Mediterranean Region ◽  
Present Review ◽  
Digital Object Identifier ◽  
Extensive Literature ◽  
Origanum Vulgare ◽  
Medicinal And Aromatic Plants ◽  
Wide Range ◽  
The World ◽  
The Mediterranean

Medicinal and aromatic plants represent a stable part of the natural biodiversity legacy of many countries in the world. The present review focuses on oregano (Origanum vulgare L.; family Lamiaceae), an endemic herb in Greece that constitutes one of the best known aromatic and medicinal plants originating in the Mediterranean region. In particular, oregano is an evergreen, rich in natural compounds perennial plant that received increased attention in the last years for a wide range of uses. Oregano dry leaves and inflorescences in mixture are used as human and animal food that is extremely rich in antioxidative properties. Additionally, its essential oil is rich in carvacrol, thymol, c-terpinene and p-cymene, and is used for a number of medicinal purposes, e.g. for inhibiting microbial and fungal toxin production as well as for the well-known anti-inflammatory, analgesic, antiarthritic, antiallergic, anticarcinogenic, antidiabetic, cardioprotective, gastroprotective, hepatoprotective, and neuroprotective properties. Due to its perfect quality and high essential oil concentration, Greek oregano (O. vulgare ssp. hirtum) is regarded among the best in the world gaining in popularity in the global markets for food industry applications. Consequently, oregano might be considered as an important low-input, environmental friendly commodity for extensive cultivation in Greece. The present review summarizes on the origin, the morphology, the ecology and the utilization of this plant. Despite the extensive literature available on the use of oregano biomass and essential oil, only few reports exist concerning the cultivation of this plant. Therefore, the present review is additionally focused on the cultivation practices and the importance of cultivation and utilization of Origanum vulgare L. in Greece and generally in the Mediterranean region in the near future, as it constitutes a plant species with high medical, economic and environmental value.   ********* In press - Online First. Article has been peer reviewed, accepted for publication and published online without pagination. It will receive pagination when the issue will be ready for publishing as a complete number (Volume 47, Issue 3, 2019). The article is searchable and citable by Digital Object Identifier (DOI). DOI link will become active after the article will be included in the complete issue. *********

Trends in the Use of Perfumes and Incense in the Near East after the Muslim Conquests

2013 ◽  
Vol 23 (1) ◽  
pp. 11-30 ◽  
Author(s):  
AMAR ZOHAR ◽  
EFRAIM LEV
Keyword(s):  
Middle East ◽  
Material Culture ◽  
East Africa ◽  
Case Studies ◽  
Mediterranean Region ◽  
Medical Literature ◽  
New Crops ◽  
The World ◽  
The Mediterranean ◽  
Level Of Importance

AbstractPerfumes have been known as utilizable but exclusive products since antiquity. Use of aromatic substances was first mentioned in archaic sources of the ancient world. The origin of such fragrant substances was mainly vegetable and animal. Throughout history, the use of subtle perfumes increased and some of the exotic materials became expensive and valuable commodities. They were the source of wealth for cultures and rulers. The contribution of the Arabs to the distribution of new crops, knowledge, industrial techniques and substances is a well-known phenomenon. In our article we intend to focus on the new perfumes that were distributed throughout the world thanks to the Arab conquests and the knowledge of their other uses, mainly medicinal, that was handed down along with the products themselves. About 20 common perfumes are known to have been used in the medieval world, though half of them were not mentioned in earlier sources.These phenomena will be dealt with and presented in a profile we built up for four perfumes: agarwood, camphor, musk and ambergris. The theoretical and practical uses of these perfumes that are presented in detail (based on various sources including traders’ documents, medical literature and practical Genizah fragments, dealing mainly with medicine) will serve as case studies for the understanding of new trends in the uses of perfumes after the Muslim conquest. Arab perfumes can be divided into three groups, according to their level of importance:A. New perfumes, mainly from the vast region named “India”; most of which (such as camphor, ambergris and sandalwood and a compound made out of them known as nadd and ghāliya) were not known in the Middle East and the Mediterranean region until the Muslim conquests.B. Perfumes that kept their popularity including: a variety of cinnamon, costus, spikenard, frankincense, saffron and rose.C. Perfumes that lost their worth like balsam and myrrh.It seems that camphor was the best and most cherished perfume that substituted balsam. Like balsam, the importance of myrrh that was imported from Arabia and East Africa also declined and it seems that its substitute was musk. Transformations in perfume fashion were in fact only part of a wider revolution of the Arabic material culture which the Middle East, the Mediterranean region and even many European countries experienced due to the Arab conquests.

scholarly journals Tourism and Economic Growth in Mediterranean Region: Dynamic Panel Data Approach

2016 ◽  
Vol 2 (1) ◽  
pp. 65-84 ◽  
Author(s):  
Blanka Šimundić ◽  
Zvonimir Kuliš
Keyword(s):  
Economic Growth ◽  
Panel Data ◽  
Mediterranean Region ◽  
Dynamic Panel Data ◽  
Dynamic Panel ◽  
The World ◽  
Global Tourism ◽  
The Mediterranean ◽  
Tourism Arrivals ◽  
Growth Hypothesis

AbstractThe Mediterranean region is one of the leading tourism regions in the world accounting for one third of global tourism receipts and half of global tourism arrivals. This paper aims at providing evidence that tourism can be considered as determinant of economic growth in the Mediterranean region. The results support the postulates of tourism led growth hypothesis, thus giving to the policymakers endorses for improving the tourism competitiveness conditions that will boost the economic growth.

Investigation of the Climate Change Effects on the Mediterranean Region with the Hypothetical inclusion of the Istanbul Isthmus

2020 ◽  
Author(s):  
Elcin Tan
Keyword(s):  
Climate Change ◽  
Land Surface ◽  
Mediterranean Region ◽  
Climate Model ◽  
Wrf Model ◽  
Ocean Model ◽  
Atmospheric Conditions ◽  
Sea Level Changes ◽  
The Mediterranean ◽  
The Impact

<p>A debate on the probable Istanbul Isthmus Project that may have catastrophic impacts on our ecosystem has been recently accelerated in public, due to the fact that the approved environmental impact assessment (EIA) report of the hypothetical Istanbul Isthmus (HII) Project has recently been announced. The EIA report indicates that the assessment covers only the current conditions and the conditions that may arise during the construction of the HII. Unfortunately, The EIA report did not evaluate the climate change impact on either the Istanbul Area or Mediterranean Region after the inclusion of the HII, only the current conditions were evaluated. Therefore, the aim of this study is to investigate the impact of HII on the climate of the Mediterranean Region. The climate version of the WRF Model is utilized with 9 km resolution for the Region 12: Mediterranean (CORDEX) for the historical conditions and RCP8.5 scenarios of available climate model results from CMIP5 and CMIP6 projects. Land surface and land use maps are prepared by following the EIA report if the necessary information is included, otherwise, the current conditions are applied. The atmospheric conditions were not coupled to an Ocean Model, only the Sea Surface Temperature (SST) values of the Ocean Models are coupled to the WRF model during both historical and future simulations. The model results are evaluated in terms of temperature, precipitation, and sea-level changes. Consequently, the results indicate that the HII may decrease the resilience of the Mediterranean Region to Climate Change.</p>

Impacts of model spatial resolution on intense and heavy precipitation events over the Mediterranean region.

2020 ◽  
Author(s):  
Dario Conte ◽  
Piero Lionello ◽  
Silvio Gualdi
Keyword(s):  
Climate Change ◽  
Spatial Pattern ◽  
Mediterranean Region ◽  
Heavy Rainfall ◽  
Climate Model ◽  
Regional Climate ◽  
Geographic Area ◽  
Fine Scale ◽  
The Mediterranean ◽  
Precipitation Events

<p>Dynamical downscaling through coupled regional climate model plays an important role to improve climate information at regional fine-scale, since it modulates information produced by GCM, combining planetary scale processes with regional scale processes.  This study describes the impact of climate change  on rainfall over the Mediterranean region, downscaling, at two different horizontal grid resolutions (0.44 and 0.11 degs), a Global Climate Model (GCM at 0.75 degs) by means of a coupled Regional Climate System Models (RCSM). We analyze the effect of adopting model version with different horizontal resolutions (0.11, 0.44 e 0.75 degs), considering  two climate representative concentration pathways (rcp4.5 and rcp8.5). The spatial pattern on different aspects of precipitation climatology are investigated such as increase/decrease in the intensity of precipitation events, extremes and annual amount of wet days. Moreover, since the grid models cover a wide and complex climate geographic area, the rainfall probability over six sub-regions are calculated: (1) Alps, (2) North-Western coast, (2) South Italy, (3) central part of the Mediterranean sea, (4) Greece Anatolia peninsula and Levantine basin. Although, the evaluation of RCSM downscaling is complex and depends on several factors such as: variables considered, geographic area, topography, model configuration and so on, the results show that it produces an significant improvement, adding information with regards to fine-scale spatial pattern, respect to that provided by GCM.</p><p><strong>ACKNOWLEDGEMENT:</strong> This contribution is based on work conducted by the authors within the SOCLIMPACT project, that has received funding from the European Union’s Horizon 2020 research and innovation programme under grant agreement No 776661. The fullname of the project is "DownScaling CLImate ImPACTs and decarbonisation pathways in EU islands, and enhancing socioeconomic and non-market evaluation of Climate Change for Europe, for 2050 and Beyond". The opinions expressed are those of the author(s) only and should not be considered as representative of the European Commission’s official position.</p><p><strong>Keywords:</strong>  widespread heavy rainfall, coupled numerical models, daily rainfall, climate scenarios, climatology of heavy rainfall.</p><p> </p>

scholarly journals From troubles to solutions: conservation of Mediterranean tortoises under global change

2020 ◽  
Author(s):  
Eva Graciá ◽  
Roberto Carlos Rodríguez-Caro ◽  
Marcos Ferrández ◽  
Albert Martínez-Silvestre ◽  
Irene Pérez-Ibarra ◽  
...  
Keyword(s):  
Mediterranean Region ◽  
Conservation Status ◽  
Natural Habitat ◽  
Conservation Strategies ◽  
Wild Animals ◽  
Wild Populations ◽  
Testudo Graeca ◽  
The Mediterranean ◽  
Endangered Status

Chelonians are among the animal groups with the poorest conservation status. Since tortoises are long-lived species that need very long time to reach sexual maturity, they are extremely vulnerable to human pressure. Despite their endangered status, there are no common strategies for the development of conservation actions. At the “Mediterranean workshop to develop tortoise conservation strategies”, scientists, conservation associations, environmental managers, IUCN advisers and CITES inspectors met in October 2019 in Alicante (Spain). The aims were to update the diagnosis of the conservation status of the Hermann’s tortoise (Testudo hermanni) and the spur-thighed tortoise (Testudo graeca) and to suggest strategies that guarantee their preservation at the Mediterranean Region. The main conclusions are summarized by: i) Mediterranean tortoises are wild endangered species that must be protected in, and together with, their natural habitat. Their main threats are habitat loss and fragmentation and pet trade, but we should also pay attention to wildfires, spread of diseases, the introduction of exotic species or lineages and climate change. ii) Long-term efforts and stablished protocols are needed to accurately diagnose and monitor the conservation status of wild populations, as well as flows among captive and wild animals. iii)  Tortoise trade should be banned because it threatens the conservation of wild populations of tortoises. Illegal practices related to tortoises should be decidedly persecuted. People should consider tortoises as wild animals that are endangered and deserving of protection. It is possible to enjoy them by responsibly observing them in their habitat. iv) Tortoises may carry pathogens or parasites and their sanitary status cannot be fully assessed. They should always be considered potential vectors of tortoise diseases and of zoonosis. Hygiene protocols should be implemented when managing them. v) The researchers attending this workshop aimed to develop a scientific network for the long-term monitoring of graeca and T. hermanni populations in the Mediterranean Region. They will need the support from public administrations.  

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