Centre de documentation
scientifique

Monitoring forest cover loss using multiple data streams, a case study of a tropical dry forest in Bolivia / Loïc Paul Dutrieux in ISPRS Journal of photogrammetry and remote sensing, vol 107 (September 2015)  

Public [article]  inISPRS Journal of photogrammetry and remote sensing > vol 107 (September 2015) . - pp 112 - 125 Titre : Monitoring forest cover loss using multiple data streams, a case study of a tropical dry forest in Bolivia Type de document : Article/Communication Auteurs : Loïc Paul Dutrieux, Auteur ; Jan Verbesselt, Auteur ; Lammert Kooistra, Auteur ; Martin Herold, Auteur Année de publication : 2015 Article en page(s) : pp 112 - 125 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] Bolivie [Termes IGN] déboisement [Termes IGN] détection de changement [Termes IGN] forêt tropicale [Termes IGN] image Terra-MODIS [Termes IGN] Normalized Difference Vegetation Index [Termes IGN] sécheresse [Termes IGN] série temporelle [Termes IGN] variabilité Résumé : (auteur) Automatically detecting forest disturbances as they occur can be extremely challenging for certain types of environments, particularly those presenting strong natural variations. Here, we use a generic structural break detection framework (BFAST) to improve the monitoring of forest cover loss by combining multiple data streams. Forest change monitoring is performed using Landsat data in combination with MODIS or rainfall data to further improve the modelling and monitoring. We tested the use of the Normalized Difference Vegetation Index (NDVI) from the Moderate Resolution Imaging Spectroradiometer (MODIS) with varying spatial aggregation window sizes as well as a rainfall derived index as external regressors. The method was evaluated on a dry tropical forest area in lowland Bolivia where forest cover loss is known to occur, and we validated the results against a set of ground truth samples manually interpreted using the TimeSync environment. We found that the addition of an external regressor allows to take advantage of the difference in spatial extent between human induced and naturally induced variations and only detect the processes of interest. Of all configurations, we found the 13 by 13 km MODIS NDVI window to be the most successful, with an overall accuracy of 87%. Compared with a single pixel approach, the proposed method produced better time-series model fits resulting in increases of overall accuracy (from 82% to 87%), and decrease in omission and commission errors (from 33% to 24% and from 3% to 0% respectively). The presented approach seems particularly relevant for areas with high inter-annual natural variability, such as forests regularly experiencing exceptional drought events. Numéro de notice : A2015-726 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.isprsjprs.2015.03.015 En ligne : https://doi.org/10.1016/j.isprsjprs.2015.03.015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=78378 [article]

Integrating a raster geographical information system with multi-objective land allocation optimization for conservation reserve design / WeiWei Dai in Transactions in GIS, vol 18 n° 6 (December 2014)  

Public [article]  inTransactions in GIS > vol 18 n° 6 (December 2014) . - pp 936 – 949 Titre : Integrating a raster geographical information system with multi-objective land allocation optimization for conservation reserve design Type de document : Article/Communication Auteurs : WeiWei Dai, Auteur ; Samuel J. Ratick, Auteur Année de publication : 2014 Article en page(s) : pp 936 – 949 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géomatique [Termes IGN] algorithme évolutionniste [Termes IGN] Bolivie [Termes IGN] implémentation (informatique) [Termes IGN] optimisation (mathématiques) [Termes IGN] réserve naturelle [Termes IGN] système d'aide à la décision [Termes IGN] système d'information géographique Résumé : (Auteur) The multi-objective land allocation problem is to optimize the selection of land for different uses based on a set of decision objectives. For most applications, a geographical information system (GIS) is either absent or loosely coupled through file exchange. In this article the evolutionary algorithm (EA), a heuristic solution method for optimization problems, is integrated with a raster GIS to form a spatial decision support system (SDSS) for multi-objective conservation reserve design. The SDSS effectively combines the functions of a GIS for data management, analysis, and visualization, with the optimization capability of the EA; and provides a uniform way to solve conservation reserve design problems with different types of constraints and objectives. The SDSS is demonstrated through application to the creation of conservation reserves in Bolivia to protect 17 endemic mammals. Numéro de notice : A2014-578 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1111/tgis.12085 Date de publication en ligne : 19/03/2014 En ligne : https://doi.org/10.1111/tgis.12085 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74768 [article]

Quantitative morphometric analysis of lakes using GIS: rectangularity R, ellipticity E, orientation O, and the rectangularity vs. ellipticity index, REi / Umberto Lombardo in Cartography and Geographic Information Science, vol 41 n° 4 (September 2014)  

Public [article]  inCartography and Geographic Information Science > vol 41 n° 4 (September 2014) . - pp 340 - 347 Titre : Quantitative morphometric analysis of lakes using GIS: rectangularity R, ellipticity E, orientation O, and the rectangularity vs. ellipticity index, REi Type de document : Article/Communication Auteurs : Umberto Lombardo, Auteur Année de publication : 2014 Article en page(s) : pp 340 - 347 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications SIG [Termes IGN] Bolivie [Termes IGN] ellipticité (géométrie) [Termes IGN] géomorphométrie [Termes IGN] lac [Termes IGN] orientation [Termes IGN] rectangle Résumé : (auteur) Quantitative measures of polygon shapes and orientation are important elements of geospatial analysis. These kinds of measures are particularly valuable in the case of lakes, where shape and orientation patterns can help identifying the geomorphological agents behind lake formation and evolution. However, the lack of built-in tools in commercial geographic information system (GIS) software packages designed for this kind of analysis has meant that many researchers often must rely on tools and workarounds that are not always accurate. Here, an easy-to-use method to measure rectangularity R, ellipticity E, and orientation O is developed. In addition, a new rectangularity vs. ellipticity index, REi, is defined. Following a step-by-step process, it is shown how these measures and index can be easily calculated using a combination of GIS built-in functions. The identification of shapes and estimation of orientations performed by this method is applied to the case study of the geometric and oriented lakes of the Llanos de Moxos, in the Bolivian Amazon, where shape and orientation have been the two most important elements studied to infer possible formation mechanisms. It is shown that, thanks to these new indexes, shape and orientation patterns are unveiled, which would have been hard to identify otherwise. Numéro de notice : A2014-429 Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Article DOI : 10.1080/15230406.2014.919540 En ligne : https://doi.org/10.1080/15230406.2014.919540 Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=73966 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
032-2014041	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Dans l'ouest amazonien, la déforestation a du mal à être contrôlée / Bernard Rérat in La Forêt Privée, n° 310 (novembre-décembre 2009)

Public [article]  inLa Forêt Privée > n° 310 (novembre-décembre 2009) . - p. 72-75 Titre : Dans l'ouest amazonien, la déforestation a du mal à être contrôlée Type de document : Article/Communication Auteurs : Bernard Rérat, Auteur Année de publication : 2009 Article en page(s) : p. 72-75 Langues : Français (fre) Descripteur : [Termes IGN] Amazonie [Termes IGN] Bolivie [Termes IGN] déboisement [Termes IGN] Equateur (état) [Termes IGN] Pérou Numéro de notice : IFN_4972 Affiliation des auteurs : non IGN Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=73015 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
IFN-001-P000728	PER	Revue	Nogent-sur-Vernisson	Salle périodiques	Exclu du prêt

MISR-based passive optical bathymetry from orbit with few-cm level of accuracy on the Salar de Uyuni, Bolivia / B.G. Bills in Remote sensing of environment, vol 107 n° 1-2 (15 March 2007)  

Public [article]  inRemote sensing of environment > vol 107 n° 1-2 (15 March 2007) . - pp 240 - 255 Titre : MISR-based passive optical bathymetry from orbit with few-cm level of accuracy on the Salar de Uyuni, Bolivia Type de document : Article/Communication Auteurs : B.G. Bills, Auteur ; A. Borsa, Auteur ; R.L. Comstock, Auteur Année de publication : 2007 Article en page(s) : pp 240 - 255 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique [Termes IGN] bathymétrie [Termes IGN] Bolivie [Termes IGN] capteur passif [Termes IGN] désert [Termes IGN] image optique [Termes IGN] image Terra-MISR [Termes IGN] inondation [Termes IGN] sel gemme Résumé : (Auteur) We demonstrate that, under ideal circumstances, passive optical measurements can yield surface water depth estimates with an accuracy of a few centimeters. Our target area is the Salar de Uyuni, in Bolivia. It is a large, active salt flat or playa, which is maintained as an almost perfectly level and highly reflective surface by annual flooding, to a mean depth of 30–50 cm. We use MISR data to estimate spatial and temporal variations in water depth during the waning portion of the 2001 flooding cycle. We use a single ICESat laser altimetry profile to calibrate our water depth model. Though the salt surface is probably the smoothest surface of its size on Earth, with less that 30 cm RMS height variations over an area of nearly 104 km2, it is not completely featureless. Topography there includes a peripheral depression, or moat, around the edge of the salt, and several sets of prominent parallel ridges, with 5 km wavelength and 30 cm amplitude. The process by which these features form is still not well characterized. Copyright Elsevier Numéro de notice : A2007-055 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2006.11.006 En ligne : https://doi.org/10.1016/j.rse.2006.11.006 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28420 [article]

Modeling long-period noise in kinematic GPS applications / A. Borsa in Journal of geodesy, vol 81 n° 2 (February 2007)  

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Evaluation of the runoff potential in high relief semi-arid regions using remote sensing data: application to Bolivia / T. Ouattara in International Journal of Remote Sensing IJRS, vol 25 n° 2 (January 2004)  

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Suivi environnemental et management de projets de développement dans les aires protégées boliviennes / A. Behr (2003)

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Dynamique des inondations dans le bassin de l'Amazonie Bolivienne : Approches par analyses hydrologiques et télédétection multicapteur et multidate / Luc Bourrel in Bulletin [Société Française de Photogrammétrie et Télédétection], n° 161 (Janvier 2001)

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Observation spatiale et SIG : des outils pour cartographier les zones sensibles aux mouvements de terrain / Jean-Yves Scanvic in Mappemonde, vol 1994 n° 4 (décembre 1994)  

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Notes de voyages en Amérique du Sud / G. Marion (1933)

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La première traversée de l'Amérique du Sud en automobile, de Rio de Janeiro à La Paz et Lima / R. Courteville (1930)

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Géographie universelle, 1. Tome 15 Amérique du Sud, première partie / Paul Vidal De La Blache (1927)

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Géographie universelle, 2. Tome 15 Amérique du Sud, deuxième partie / Paul Vidal De La Blache (1927)

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La línea de frontera con la República de Bolivia / L. Riso Patron (1910)

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