1,721,017 research outputs found
The surface circulation in the eastern basin of the Meditarranean and the impact of the mesoscale eddies
No full text39e Congrès de la CIESM : 39th CIESM Congress, 10-14 May 2010, Venice, Italie.-- Taupier-Letage, I. ... et al.-- 1 page, 2 figuresThe EGYPT (Eddies and GYres Paths Tracking ) - EGITTO program data sets provide an unprecedented insight into the Eastern Basin surface circulation. They confirmed the Atlantic Water (AW) path be an anticlockwise circuit along the basin slopes, and its frequent offshore dispatching related to the paddle-wheel effect of the mesoscale eddies generated by the southern part of the circuit, the Libyo-Egyptian Current. However, in opposition with earlier observations, several eddies have been tracked drifting westward for several months, up to one year. The study of the circulation in the Eastern Basin remains a challenge yetPeer Reviewe
New elements on the surface circulation in the eastern basin of the Mediterranean
No full textTaupier-Letage, I. ... et. al.-- 38e Congrès de la CIESM : 38th CIESM Congress, 9-13 April 2007, Istanbul, Turkey.-- 1 page, 1 figureAn intensive survey of the circulation in the eastern basin of the Mediterranean is currently underway. One of the goals is to settle the controversy about the surface circulation main path, depicted either as first meandering offshore across the basin ("Mid-Mediterranean Jet"), or as a counter-clockwise circuit along the slope at the basin scale. Observations (both in situ and remotely sensed) focussed mainly on the southern part of the basin, where only a few in situ observations -if any- were available, and on sampling mesoscale eddies. The first results of the programs EGYPT and EGITTO, initiated in September 2005 and expected to last till mid-2008, are presentedPeer Reviewe
Impact of the representation of the freshwater river input in the Western Mediterranean Sea
No full textThe Western Mediterranean Sea is often affected by heavy precipitation which frequently generates floods or even flash floods. These events generally produce brief but major freshwater inputs in the ocean. In order to evaluate the sensitivity to the representation of river freshwater input, three different runoff forcing dataset are used to drive the NEMO ocean model: a monthly climatology, an observational dataset with a daily or a hourly frequency. The sensitivity is investigated over the first Special Observation Period (SOP1) of the HyMeX program that took place in autumn 2012, in two configurations of NEMO: the first is WMED36 over the Western Mediterranean Sea at 1/36°-resolution and the second is a new configuration covering the North-Western Mediterranean Sea with a 1/72°-resolution named NWMED72. With NWMED72, the impact of the representation of the river freshwater flux, i.e. moving from a surface flux to a vertical distribution of the flux, is also evaluated. The results show that the ocean stratification is significantly modified locally in simulations where runoff observations are used compared to those using the climatology. The sea surface salinity is modified as well as the mixed layer which is thinner as bounded by a well marked halocline. The sea surface temperature is also impacted by the change in runoff frequency. Moreover, the current intensity in river plume during flood is increased. Vertical profiles of salinity and temperature and thus the mixed layer depth are changed when the runoff forcing is distributed over a depth. Those changes are limited and very local but the realism of the river runoff input is improved
ALGERS : Chlorophyll determinations
No full textSubproyecto "Variabilidad espacial -tridimensional- y temporal en inestabilidades de mesoescala: remolinos meandros y filamentos" y proyecto "ALGERS: Uso de los sensores de los satélites ERS en el estudio de la dinámica del Agua Atlántica Modificada en la cuenca Argelina" del programa Mass Transfer and Ecosystem Response (MATER).-- Jefe de campañana Jordi Font:-- 4 pagesPeer Reviewe
Biomasa fitoplanctónica
No full textMAss Transfer and Ecosystem Response 3 (MATER-3) del Mediterranean Targeted Project II (MTP II), inicialmente denominada ALGERS'98.-- Jefe de campañana Jordi Font.-- Códigos de campaña HE049 y MTP II MATER/HESP-05-98 con inicio el 18 de mayo de 1998 en Cartagena y final el 27 de mayo de 1998 en Cartagena.-- 1 pagePeer Reviewe
Going Beyond Counting First Authors in Author Co-citation Analysis
Get PDFThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Get PDF“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Get PDFWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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