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Exemplaires(1)
Code-barres | Cote | Support | Localisation | Section | Disponibilité |
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230-08021 | RAB | Revue | Centre de documentation | En réserve L003 | Disponible |
Dépouillements
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The influence of thematic and spatial resolution on maps of a coral reef ecosystem / M. Kendall in Marine geodesy, vol 31 n° 2 (June - September 2008)
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[article]
Titre : The influence of thematic and spatial resolution on maps of a coral reef ecosystem Type de document : Article/Communication Auteurs : M. Kendall, Auteur ; T. Miller, Auteur Année de publication : 2008 Article en page(s) : pp 75 - 102 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] cartographie écologique
[Termes IGN] détection de changement
[Termes IGN] échantillonnage d'image
[Termes IGN] écologie
[Termes IGN] écosystème
[Termes IGN] image spatiale
[Termes IGN] limite de résolution géométrique
[Termes IGN] récif corallien
[Termes IGN] relief sous-marinRésumé : (Auteur) Four maps of a reef ecosystem were created using two levels of both spatial and thematic resolution commonly used in science and management applications. Differences among maps were quantified using ecologically meaningful landscape indices. The objective was to inform research and management activities that are based on maps of reef ecosystems. Results indicate that inferences regarding the structure and organization of reef ecosystems are sensitive to changes in resolution of the maps characterizing them. Hard bottom, sand, and patchy features were the most sensitive to change in map resolution whereas continuous seagrass beds and linear reef features were not. Copyright Taylor & Francis Numéro de notice : A2008-495 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1080/01490410802053617 En ligne : https://doi.org/10.1080/01490410802053617 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29564
in Marine geodesy > vol 31 n° 2 (June - September 2008) . - pp 75 - 102[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 230-08021 RAB Revue Centre de documentation En réserve L003 Disponible Corsica SLR positioning campaigns (2002 and 2005) for satellite altimeter calibration missions / Bachir Gourine in Marine geodesy, vol 31 n° 2 (June - September 2008)
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[article]
Titre : Corsica SLR positioning campaigns (2002 and 2005) for satellite altimeter calibration missions Type de document : Article/Communication Auteurs : Bachir Gourine, Auteur ; Pierre Exertier, Auteur ; David Coulot , Auteur ; Salem Kahlouche, Auteur ; et al., Auteur
Année de publication : 2008 Article en page(s) : pp 103 - 116 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] altimètre laser
[Termes IGN] campagne d'observations
[Termes IGN] Corse
[Termes IGN] étalonnage d'instrument
[Termes IGN] orbitographie
[Termes IGN] positionnement par géodésie spatiale
[Termes IGN] télémétrie laser sur satelliteRésumé : (Auteur) The French Transportable Laser Ranging System (FTLRS) was deployed in the calibration site of satellite radar altimeters in Corsica over the 2002 and 2005 campaigns. The paper describes the different steps of SLR data processing. The average arcs RMS obtained are about 1-2 cm for Lageos-1&-2, Starlette and Stella satellites; it is shown that the best results of satellite orbits determination and geocentric positioning are obtained with Eigen-Grace03s gravity model. The difference of FTLRS absolute 3D positioning, between 2002 and 2005, of about 7.7 mm (i.e., 2.6 mm/yr) is less than residual errors of ITRF2005 velocities (of about 4.3 mm/yr). Numéro de notice : A2008-496 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01490410802053658 En ligne : https://doi.org/10.1080/01490410802053658 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29565
in Marine geodesy > vol 31 n° 2 (June - September 2008) . - pp 103 - 116[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 230-08021 RAB Revue Centre de documentation En réserve L003 Disponible GIS modeling of wave exposure at the seabed: a depth-attenuated wave exposure model / T. Bekkby in Marine geodesy, vol 31 n° 2 (June - September 2008)
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[article]
Titre : GIS modeling of wave exposure at the seabed: a depth-attenuated wave exposure model Type de document : Article/Communication Auteurs : T. Bekkby, Auteur ; E. Isachsen, Auteur ; et al., Auteur Année de publication : 2008 Article en page(s) : pp 117 - 127 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] eaux côtières
[Termes IGN] faune aquatique
[Termes IGN] modèle océanographique
[Termes IGN] océanographie spatiale
[Termes IGN] profondeur
[Termes IGN] relief sous-marin
[Termes IGN] Stockholm (Suède)
[Termes IGN] substrat
[Termes IGN] système d'information géographique
[Termes IGN] vagueRésumé : (Auteur) Several studies have documented relationships between wave exposure and distribution, density, and size of marine species. Hence, this factor is at a high level in the hierarchical habitat classification system EUNIS and is one of the Water Framework Directive water typology criteria of coastal waters. Isaeligus (2004) has developed a continuous simplified wave model (SWM) that has been applied to several Nordic countries. Here we refine this model by introducing depth-attenuation, giving us the advantage of a model for wave exposure as it will actually work at the seabed. The values of the depth-attenuated model SWM(d) are approximately similar to the SWM model in shallow areas but noticeably lower in deep areas. The two models were compared in an analysis of the distribution of seabed substrate in the Stockholm archipelago. Using the depth-attenuated wave exposure instead of the SWM model as predictor in substrate modeling improved these models considerably. Copyright Taylor & Francis Numéro de notice : A2008-497 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/01490410802053674 En ligne : https://doi.org/10.1080/01490410802053674 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=29566
in Marine geodesy > vol 31 n° 2 (June - September 2008) . - pp 117 - 127[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 230-08021 RAB Revue Centre de documentation En réserve L003 Disponible