1,720,969 research outputs found
Integration of numerical modeling and obserservations for the Gulf of Naples monitoring network
No full textDynamics of a Very Special Mediterranean Coastal Area: The Gulf of Naples
No full textHere, the results of an investigation that was performed on the surface dynamics of a coastal area using data provided by a land-based remote sensing system, a HF coastal radar, are presented. The surface circulation in the Gulf of Naples (southern Tyrrhenian Sea, western Mediterranean), as determined using measurements collected by a HF radar, displayed recurrent dynamics directly linked to prevailing forcing conditions. In this contribution we examine the circulation-dependent surface transport of passive particles released in a coastal sub-basin (Bay of Naples), as characterized by severe anthropic pressure. HF radar data of surface circulation were integrated using a transport model, and simulations of coastal-offshore transport were performed in order to estimate the residence times of the particles and to identify possible areas of retention and aggregation. Four test cases, representative of the most frequent seasonal observed circulation structures, were investigated. Depending on the forcing factor driving surface circulation, the results emphasized the existence of unique mechanisms
Inshore/offshore water exchange in the Gulf of Naples
No full textThe Gulf of Naples is a coastal area of the south-eastern Tyrrhenian Sea (Western
Mediterranean) in which zones of great environmental and touristic value coexist with one of the
largest seaports in the Mediterranean Sea, industrial settlements and many other pollution sources, in
a context characterized by a very intense anthropic pressure.
In such an environment, water renewal mechanisms are of crucial importance for the good ecological
status of coastal waters. In this papers we focus on water exchange between the interior of the Gulf and
the neighboring open Tyrrhenian sea.
The surface dynamics of the Gulf has been investigated on the basis of measurements carried out with
a HF radar system, which has proved to be an excellent tool for the synoptic assessment of the
dynamics of coastal areas. The vertical component of the current field has been provided by an ocean
circulation model, the Regional Ocean Modeling System (ROMS), implemented in a larger area of the
Tyrrhenian Sea which includes the Gulf of Naples. We present results of a one-year long analysis of
data and simulation results relative to the year 2009, which was characterized by episodes of severe
decrease of the water quality in the southeastern sector of the Gulf. The general description of the
dynamics of the area is accompanied by a detailed analysis of in-/offshore exchanges, assessed by
looking at the zonal component of the surface and subsurface current field across a transect which
represents a sort of threshold between the interior of the Gulf and the open sea.
This also allows to reconstruct the short-term origin of waters found inside the Gulf in the different
forcing and circulation conditions
Inshore/offshore water exchange in the Gulf of Naples
No full textThe Gulf of Naples is a coastal area of the south-eastern Tyrrhenian Sea (Western
Mediterranean) in which zones of great environmental and touristic value coexist with one of the
largest seaports in the Mediterranean Sea, industrial settlements and many other pollution sources, in
a context characterized by a very intense anthropic pressure.
In such an environment, water renewal mechanisms are of crucial importance for the good ecological
status of coastal waters. In this papers we focus on water exchange between the interior of the Gulf and
the neighboring open Tyrrhenian sea.
The surface dynamics of the Gulf has been investigated on the basis of measurements carried out with
a HF radar system, which has proved to be an excellent tool for the synoptic assessment of the
dynamics of coastal areas. The vertical component of the current field has been provided by an ocean
circulation model, the Regional Ocean Modeling System (ROMS), implemented in a larger area of the
Tyrrhenian Sea which includes the Gulf of Naples. We present results of a one-year long analysis of
data and simulation results relative to the year 2009, which was characterized by episodes of severe
decrease of the water quality in the southeastern sector of the Gulf. The general description of the
dynamics of the area is accompanied by a detailed analysis of in-/offshore exchanges, assessed by
looking at the zonal component of the surface and subsurface current field across a transect which
represents a sort of threshold between the interior of the Gulf and the open sea.
This also allows to reconstruct the short-term origin of waters found inside the Gulf in the different
forcing and circulation conditions
Land-Based Remote Sensing of Coastal Basins: Use of an HF Radar to Investigate Surface Dynamics and Transport Processes in the Gulf of Naples
No full textLand-Based Remote Sensing of Coastal Basins: Use of an HF Radar to Investigate Surface Dynamics and Transport Processes in the Gulf of Naples
No full textHere, the results of an investigation that was performed on the surface dynamics of a coastal area using data provided by a land-based remote sensing system, a HF coastal radar, are presented. The surface circulation in the Gulf of Naples (southern Tyrrhenian Sea, western Mediterranean), as determined using measurements collected by a HF radar, displayed recurrent dynamics directly linked to prevailing forcing conditions. In this contribution we examine the circulation-dependent surface transport of passive particles released in a coastal sub-basin (Bay of Naples), as characterized by severe anthropic pressure. HF radar data of surface circulation were integrated using a transport model, and simulations of coastal-offshore transport were performed in order to estimate the residence times of the particles and to identify possible areas of retention and aggregation. Four test cases, representative of the most frequent seasonal observed circulation structures, were investigated. Depending on the forcing factor driving surface circulation, the results emphasized the existence of unique mechanisms
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe 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
Water temperature from XBT taken from the research vessel Italica in the Southern Ocean and Southwest Pacific Ocean from 2006-01-01 to 2006-01-04 (NCEI Accession 0207044)
No full textThis dataset contains XBT vertical temperature profiles collected from 2006-01-01 to 2006-01-04 from the research vessel Italica during an oceanographic cruise between New Zealand and the Ross Sea in the framework of the Climatic Long-term Interaction for the Mass balance in Antarctica (CLIMA) project of the Italian National Antarctic Research Programme (PNRA). Sippican T7 Expendable Bathythermograph (XBT) probes with a vertical resolution of 65 cm and a maximum nominal depth of 760 m were used. The mean spatial resolutions ranges between 15 nm and 20 nm, according to the specific part of the cruise. XBT launches might have been interrupted in case of severe sea and weather conditions. This implies the possible presence of gaps in the sampling. All temperature profiles are quality controlled for consistency between adjacent profiles and through spike editing. Data are provided in TXT format
Variations on the Author
Full text link“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
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