scholarly journals The effect of observation timescales on the characterisation of extreme Mediterranean precipitation

2010 ◽  
Vol 26 ◽  
pp. 61-64 ◽  
Author(s):  
A. M. Camarasa Belmonte ◽  
J. Soriano García ◽  
M. J. López-García
Keyword(s):  
Water Management ◽  
Iberian Peninsula ◽  
Turning Points ◽  
Maximum Intensity ◽  
Rain Intensity ◽  
Large Area ◽  
Cumulative Rainfall ◽  
Continuous Basis ◽  
The Mediterranean

Abstract. This paper analyses the behaviour of five rainfall indicators (maximum intensity, cumulative rainfall, irregularity, probability of rain and persistence of rain) over different observation timescales ranging from 5 min to 24 h. It covers a large area on the Mediterranean side of the Iberian Peninsula (River Júcar Water Authority, 43 000 km2) on a continuous basis over a period of 14 years (1994–2007). The results show that the behaviour of extreme Mediterranean rainfall is heavily dependent on the observation timescale. There are a number of turning points in the indicator trends which occur on different timescales (1 and 6 h in the case of rain intensity and irregularity, 6 h for cumulative rainfall and between 15 and 30 min for the persistence of rain) and may be relevant for the determination of thresholds used in water management.

scholarly journals Impact of air–sea coupling on the climate change signal over the Iberian Peninsula

2021 ◽  
Author(s):  
Alba de la Vara ◽  
William Cabos ◽  
Dmitry V. Sein ◽  
Claas Teichmann ◽  
Daniela Jacob
Keyword(s):  
Climate Change ◽  
Iberian Peninsula ◽  
Mediterranean Sea ◽  
Large Scale ◽  
Regional Distribution ◽  
Coupled Model ◽  
Climate Change Signal ◽  
The North ◽  
The Mediterranean ◽  
The Impact

AbstractIn this work we use a regional atmosphere–ocean coupled model (RAOCM) and its stand-alone atmospheric component to gain insight into the impact of atmosphere–ocean coupling on the climate change signal over the Iberian Peninsula (IP). The IP climate is influenced by both the Atlantic Ocean and the Mediterranean sea. Complex interactions with the orography take place there and high-resolution models are required to realistically reproduce its current and future climate. We find that under the RCP8.5 scenario, the generalized 2-m air temperature (T2M) increase by the end of the twenty-first century (2070–2099) in the atmospheric-only simulation is tempered by the coupling. The impact of coupling is specially seen in summer, when the warming is stronger. Precipitation shows regionally-dependent changes in winter, whilst a drier climate is found in summer. The coupling generally reduces the magnitude of the changes. Differences in T2M and precipitation between the coupled and uncoupled simulations are caused by changes in the Atlantic large-scale circulation and in the Mediterranean Sea. Additionally, the differences in projected changes of T2M and precipitation with the RAOCM under the RCP8.5 and RCP4.5 scenarios are tackled. Results show that in winter and summer T2M increases less and precipitation changes are of a smaller magnitude with the RCP4.5. Whilst in summer changes present a similar regional distribution in both runs, in winter there are some differences in the NW of the IP due to differences in the North Atlantic circulation. The differences in the climate change signal from the RAOCM and the driving Global Coupled Model show that regionalization has an effect in terms of higher resolution over the land and ocean.

The departure of the Greeks from Egypt, 1961: the perspective of Greek diplomacy

2020 ◽  
pp. 1-18
Author(s):  
Evanthis Hatzivassiliou
Keyword(s):  
Near East ◽  
Political Leaders ◽  
The Mediterranean ◽  
Younger Generation ◽  
Post War ◽  
The Many ◽  
Economic Failure

The departure of the greater part of the Greek community from Egypt is one of the many sad stories of the post-war Mediterranean. This article focuses upon the reports of the Greek Consul-General in Alexandria, Byron Theodoropoulos, regarding the Egyptian ‘Socialist Laws’ of summer 1961, which gave the coup de grâce to the Greek community. It argues that the expulsion of the Greeks was part of a wider redistribution of power in the region. This episode, together with similar experiences in other parts of the Mediterranean, evidently cemented the determination of a younger generation of political leaders and diplomats to seek Greece's future in the cosmopolitan, post-nationalist West, rather than in a ‘Near East’ rife with nationalism and economic failure.

The effect of grass transpiration on the air temperature

Biologia ◽  
2014 ◽  
Vol 69 (11) ◽  
Author(s):  
Miloslav Šír ◽  
Miroslav Tesař ◽  
Ľubomír Lichner ◽  
Henryk Czachor
Keyword(s):  
Air Temperature ◽  
Root Zone ◽  
Sunshine Duration ◽  
Global Radiation ◽  
Maximum Intensity ◽  
Vegetative Cover ◽  
Brown Forest Soil ◽  
Large Area ◽  
Avenella Flexuosa ◽  
Daily Total

AbstractOscillations of the air temperature and tensiometric pressure of the soil water were measured in the experimental slope Tomšovka (Czech Republic, Jizera Mts, 822 m a.s.l.). The brown forest soil (Dystric Cambisols) is covered with Calamagrostis villosa, Avenella flexuosa and Vaccinium myrtilus. Thermometers were placed at a height of 5 and 200 cm above the grassland. The tensiometer was installed in the root zone of grass at a depth of 15 cm. Oscillations in a cloudless day, August 24, 2001, (sunshine duration 12.1 hour/day, daily total of global radiation 22.4 MJ/m2/day, maximum intensity of global radiation 1008 W/m2, transpiration 13.7 MJ/m2/day) were analysed in detail. The oscillations with a period of about 30 to 60 minutes were recorded in the air temperature course taken from 11 am to 5 pm. At the height of 200 cm oscillations ranged from 24 to 28°C. Concurrently, in the depth of 15 cm, the oscillations of tensiometric pressure in the range of −6 to −11 kPa were recorded from 8 am to 4 pm. It was concluded that the oscillations in the air temperature resulted from autonomous and self-regulated oscillations in the intensity of transpiration. It is evident that the 2-m air temperature was significantly influenced by transpiration of plants around the large area. The fact that the air temperature oscillated sharply confirms that the rate of transpiration was synchronized in this area. Vegetative cover thus created a self-regulated superorganism that substantially affected the temperature of the near-ground atmosphere layer.

DETERMINATION OF ORGANOCHLORINE COMPOUNDS IN NEUSTON FROM THE MEDITERRANEAN

2008 ◽  
Vol 29 (12) ◽  
pp. 1275-1283 ◽  
Author(s):  
N. García‐flor ◽  
R. Alzaga ◽  
L. Ortiz ◽  
J. M. Bayona ◽  
J. Albaigés
Keyword(s):  
Organochlorine Compounds ◽  
The Mediterranean

TO THE CALCULATION OF LENGTH OF GEOPHYSICAL OBJECTS OF HYPERBOLIC OUTLINE

2021 ◽  
pp. 85-89
Author(s):  
K. N. ANAKHAEV ◽  
◽  
B. KH. AMSHOKOV ◽  
K. K. ANAKHAEV
Keyword(s):  
Water Management ◽  
Applied Research ◽  
Free Fall ◽  
Linear Interpolation ◽  
Close Approximation ◽  
Tabular Data ◽  
Exact Determination ◽  
Complex Dependence ◽  
Incomplete Elliptic Integrals

Hyperbolic curves are used in various theoretical and practical studies, including in the field of water management and environmental construction when calculating various geophysical objects with hyperbolic outlines (surfaces of coastal slopes, sliding lines of landslide massifs, directing dams, spillway surfaces of watersheds, water free fall trajectories, etc.). The exact determination of the length of the hyperbola arc is represented by a rather complex dependence based on “unbreakable” incomplete elliptic integrals, which makes it difficult to carry out analytical calculations and involves the use of tabular data with a time-consuming cross and non-linear interpolation of them, etc. Elementary dependencies are proposed to determine the length of the hyperbola arc, which give a very close approximation (up to 1%) to exact values. The obtained calculated analytical dependencies for determining the length of the hyperbola arc are recommended for practical use in theoretical and applied research in various fi elds of science and technology.

scholarly journals Serial nominations for the AWH initiative: The paradigm of seven-stone antas and beyond

2015 ◽  
Vol 11 (A29A) ◽  
pp. 102-104
Author(s):  
Juan Antonio Belmonte ◽  
César González García ◽  
Michael Hoskin
Keyword(s):  
Iberian Peninsula ◽  
World Heritage ◽  
The Other ◽  
Short Report ◽  
Excellent Candidate ◽  
The Mediterranean ◽  
The Ideal

AbstractIn this short report we examine the ideal status of the seven-stone antas (a type of very ancient megalithic monument in the southwest of the Iberian Peninsula) as an excellent candidate for a serial nomination within the Astronomy and World Heritage Initiative. This case will be compared with an extraordinary set of dolmens at the other side of the Mediterranean, within the Transjordan Plateau, worthy of being protected under the umbrella of the same initiative but which are in serious danger of ‘extinction’.

scholarly journals DETERMINATION OF AN OPTIMAL FLEET FOR A CNG TRANSPORTATION SCENARIO IN THE MEDITERRANEAN SEA

Brodogradnja ◽  
2019 ◽  
Vol 70 (3) ◽  
pp. 1-23
Author(s):  
Francesko Mauro ◽  
◽  
Luca Braidotti ◽  
Giorgio Trincas
Keyword(s):  
Mediterranean Sea ◽  
The Mediterranean

scholarly journals Evaluating the standards for solar PV installations in the Iberian Peninsula: Analysis of tilt angles and determination of solar climate zones

2022 ◽  
Vol 49 ◽  
pp. 101684
Author(s):  
E. González-González ◽  
J. Martín-Jiménez ◽  
M. Sánchez-Aparicio ◽  
S. Del Pozo ◽  
S. Lagüela
Keyword(s):  
Iberian Peninsula ◽  
Solar Pv ◽  
Climate Zones

scholarly journals Mediterranean Studies in the modern socio-humanistic knowledge

2020 ◽  
pp. 55-63
Author(s):  
Elizaveta Kravchenko
Keyword(s):  
Russian Science ◽  
Mediterranean Studies ◽  
Mediterranean Countries ◽  
Initial Stage ◽  
Analytical Work ◽  
The Subject ◽  
The Mediterranean ◽  
Sociocultural Processes ◽  
Humanistic Knowledge

Sociocultural processes, political situation and cultural contacts in the Mediterranean countries substantiate the relevance of development of the humanities section in Mediterranean Studies. The author discusses the problem on the advancement of Mediterranean Studies in Russia and abroad, as well as indicates the key questions faced by the scholars of Mediterranean Studies at the initial stage of analytical work. The object of this research is the establishment methodological framework of Mediterranean Studies in the sphere of humanities. The subject is the concepts of prominent theoreticians in the field of Mediterranean studies (D. Abulafia, R. Clement, S. Stroumsa, N. Bouchard, F. Braudel, H. Pirenne). The goal consists in determination of the relevant problems and approaches toward studying the Mediterranean Region. Due to the fact that in the Russian Science close attention is given to natural scientific vector of Mediterranean Studies, there are virtually no research on the development of Mediterranean Studies in the sphere of humanities, and namely culturology, which defines the scientific novelty of this work. The main conclusion consists in the analytical overview of the state of Mediterranean Studies in Russia, as well as in explication of foreign theories that reveal the concept of the “Mediterranean” and approaches towards its examination. This work can attract the attention of translators to the research bases of foreign centers of the Mediterranean Studies, contribute to scientific communication, as well as designate the topic for international research projects in the area of culturology, history, and international relations in Russia.

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