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Termes IGN > environnement > écologie
écologie
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Bionomie, Influence du milieu. Science de l'environnement. >> Aspect de l'environnement, Biologie des populations, Catastrophe écologique, Écologie animale, Écologie végétale, Écosystème, Environnement, Habitat (écologie). >>Terme(s) spécifique(s) : Adaptation (biologie), Socialisme et écologie, Macroécologie, Autoécologie, Bioclimatologie, Biome, Éco-industrie, Écologie agricole, Écologie appliquée, Écologie chimique, Écologie moléculaire, Écologie spatiale, Écophysiologie, Géoécologie, Hétérogénéité écologique, Intégrité écologique, Paléoécologie, Radioécologie, Restauration écologique, Succession écologique. Equiv. LCSH : Ecology. Domaine(s) : 570. Voir aussi |
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Effect of grain size on remotely sensed spectral reflectance of sandy desert surfaces / G.S. Okin in Remote sensing of environment, vol 89 n° 3 (15/02/2004)
[article]
Titre : Effect of grain size on remotely sensed spectral reflectance of sandy desert surfaces Type de document : Article/Communication Auteurs : G.S. Okin, Auteur ; T.H. Painter, Auteur Année de publication : 2004 Article en page(s) : pp 272 - 280 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] Californie (Etats-Unis)
[Termes IGN] désert
[Termes IGN] érosion éolienne
[Termes IGN] image AVIRIS
[Termes IGN] réflectance
[Termes IGN] sable
[Termes IGN] transfert radiatifRésumé : (Auteur) The effect of soil surface texture on spectral reflectance is reported for a site in the Mojave Desert. Abandoned central-pivot agricultural fields in the Manix Basin of southeastern California have introduced deflationary surface, into the otherwise stable, armored desert surface. This has resulted in sand plumes, eroded from the fields by wind, transported by saltation and deposited downwind of the fields. Grain size analysis of this wind-transported material reveals a fractionation by size within the plume, with smaller effective particle size toward the toe of the plume. This fractionation results from the greater mobility of smaller particles, and the longer saltation paths they take once airborne. Radiative transfer modeling of quartz grains with absorbing rinds indicates that the difference in grain size observed in the field should be revealed in apparent surface reflectance and are resolvable within the noise-equivalent delta-reflectance of the Airborne Visible Infrared Imaging Spectrometer (AVIRIS) instrument. Analysis of AVIRIS-derived apparent surface reflectance demonstrates the expected negative correlation between effective grain size of sand in the plume and reflectance, with the most significant correlations in the short-wave infrared. The change in reflectance per mm change in particle diameter was - 0.06 at & ~ 1.7 um and - 0.08 at & ~ 2.2 um with R2 = 0.89 and 0.93, respectively. Numéro de notice : A2004-018 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2003.10.008 En ligne : https://doi.org/10.1016/j.rse.2003.10.008 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26546
in Remote sensing of environment > vol 89 n° 3 (15/02/2004) . - pp 272 - 280[article]Predicting in situ pasture quality in the Kruger National Park, South Africa, using continuum-removed absorption features / Onisimo Mutanga in Remote sensing of environment, vol 89 n° 3 (15/02/2004)
[article]
Titre : Predicting in situ pasture quality in the Kruger National Park, South Africa, using continuum-removed absorption features Type de document : Article/Communication Auteurs : Onisimo Mutanga, Auteur ; Andrew K. Skidmore, Auteur ; Herbert H.T. Prins, Auteur Année de publication : 2004 Article en page(s) : pp 393 - 408 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] Afrique du sud (état)
[Termes IGN] azote
[Termes IGN] biochimie
[Termes IGN] carbone
[Termes IGN] forêt tropicale
[Termes IGN] image hyperspectrale
[Termes IGN] parc naturel national
[Termes IGN] paturage
[Termes IGN] phosphore
[Termes IGN] potassium
[Termes IGN] prairie
[Termes IGN] réflectance végétale
[Termes IGN] régression linéaire
[Termes IGN] savane
[Termes IGN] spectroradiomètre
[Termes IGN] zone intertropicaleRésumé : (Auteur) The remote sensing of pasture quality as determined by nitrogen, phosphorous, potassium, calcium and magnesium concentration is critical for a better understanding of wildlife and livestock feeding patterns. Although remote sensing techniques have proved useful for assessing the concentration of foliar biochemicals under controlled laboratory conditions, more investigation is required to assess their capabilities in the field where inconsistent results have been obtained so far. We investigated the possibility of determining the concentration of in situ biochemicals in a savanna rangeland, using the spectral reflectance of five grass species. Canopy spectral measurements were taken in the field using a GER 3700 spectroradiometer. We tested the utility of using four variables derived from continuum-removed absorption features for predicting canopy nitrogen, phosphorous, potassium, calcium and magnesium concentration: (i) continuum-removed derivative reflectance (CRDR), (ii) band depth (BD), (iii) band depth ratio (BDR) and (iv) normalised band depth index (NBDI). Stepwise linear regression was used to select wavelengths from the absorption-feature-based variables. Univariate correlation analysis was also done between the first derivative reflectance and biochemicals. Using a training data set, the variables derived from continuum-removed absorption features could predict biochemicals with R2 values ranging from 0.43 to 0.80. Results were highest using CRDR data, which yielded R2 values of 0.70, 0.80, 0.64, 0.50 and 0.68 with root mean square errors (RMSE) of 0.01, 0.004, 0.03, 0.01 and 0.004 for nitrogen, phosphorous, potassium, calcium and magnesium, respectively. Predicting biochemicals on a test data set, using regression models developed from a training data set. resulted in R2 values ranging from 0. 15 to 0.70. The error of prediction (RSE) in the test data set was 0.08 (+ 10.25% of mean), 0.05 (+ 5.2% of mean), 0.02 (+ 11.11% of mean), 0.05 (+ 11.6% of mean) and 0.03 (+ 15% of mean) for nitrogen, potassium, phosphorous. calcium and magnesium, respectively, using CRDR. When data was partitioned into species groups, the R2 increased significantly to >0.80. With high-quality radiometric and geometric calibration of hyperspectral imagery, the techniques applied in this study (i.e. continuum removal on absorption features) may also be applied on data acquired by airborne and spacebome imaging spectrometers to predict and ultimateIy to map the concentration of macronutrients in tropical rangelands. Numéro de notice : A2004-020 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2003.11.001 En ligne : https://doi.org/10.1016/j.rse.2003.11.001 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26548
in Remote sensing of environment > vol 89 n° 3 (15/02/2004) . - pp 393 - 408[article]Application of stereoscopic satellite images for studying Quaternary tectonics in arid regions / B. Fu in International Journal of Remote Sensing IJRS, vol 25 n° 3 (February 2004)
[article]
Titre : Application of stereoscopic satellite images for studying Quaternary tectonics in arid regions Type de document : Article/Communication Auteurs : B. Fu, Auteur ; A. Lin, Auteur ; K.I. Kano, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 537 - 547 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Chine
[Termes IGN] couple stéréoscopique
[Termes IGN] déformation de la croute terrestre
[Termes IGN] ère quaternaire
[Termes IGN] faille géologique
[Termes IGN] géologie structurale
[Termes IGN] image IRS
[Termes IGN] image Landsat-ETM+
[Termes IGN] image Landsat-TM
[Termes IGN] tectonique
[Termes IGN] zone aride
[Termes IGN] zone semi-arideRésumé : (Auteur) We introduce a flexible method for creating stereoscopic pairs of images from any interesting sub-area of the same scene of Landsat Thematic Mapper (TM) / Enhanced Thematic Mapper (ETM) and Indian Remote Sensing (IRS)-IC Pan remote sensing data by setting the Z scale. As a test of this method, stereoscopic images were used to study Quaternary deformation along the Tian Shan Orogenic Belt, north-west China. The new stereoscopic images can then provide detailed information of Quaternary deformation structures, including spatial distribution and arrangement pattern of fold structures, fault scarps and displacement of alluvial fans, terraces and drainage systems along active faults, in three dimensions. The strike-slip partitioning has been revealed by interpretation of stereoscopic images within Chinese Tian Shan. Structural interpretations derived from stereoscopic analysis were confirmed to a high degree of accuracy during a subsequent field study. The satellite remote sensing stereoscopic technique is an effective method of analysing Quaternary tectonic deformation in remote and to semi-arid regions such as the Tian Shan. Numéro de notice : A2004-062 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/0143116031000150031 En ligne : https://doi.org/10.1080/0143116031000150031 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26590
in International Journal of Remote Sensing IJRS > vol 25 n° 3 (February 2004) . - pp 537 - 547[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-04031 RAB Revue Centre de documentation En réserve L003 Exclu du prêt Mapping the aerodynamic roughness length of desert surfaces from the POLDER/ADEOS bi-directional reflectance product / Béatrice Marticorena in International Journal of Remote Sensing IJRS, vol 25 n° 3 (February 2004)
[article]
Titre : Mapping the aerodynamic roughness length of desert surfaces from the POLDER/ADEOS bi-directional reflectance product Type de document : Article/Communication Auteurs : Béatrice Marticorena, Auteur ; Patrick Chazette, Auteur ; G. Bergametti, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 603 - 626 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] carte thématique
[Termes IGN] distribution du coefficient de réflexion bidirectionnelle BRDF
[Termes IGN] image ADEOS
[Termes IGN] POLarization and Directionality of Earth's Reflectances
[Termes IGN] poussière
[Termes IGN] réflectance de surface
[Termes IGN] rugosité
[Termes IGN] Sahara, désert du
[Termes IGN] zone arideRésumé : (Auteur) Surface roughness is a key parameter for computing the emissions and for simulating the atmospheric cycle of mineral dust. However its assessment on the basis of field measurements from source areas scattered round the globe requires much effort. Here we investigate the retrieval of the aerodynamic roughness length of and areas using surface bi-directional reflectance products derived from passive multi-directional measurements in the solar spectrum of the POlarization and Directionality of the Earth's Reflectances (POLDER) sensor. The so-called protrusion coefficient (PC) of the surface derived from the POLDER bidirectional reflectance distribution function (BRDF) is well suited to estimate surface roughness. From an appropriate selection of POLDER data, a composite PC dataset has been established over the Sahara and the Arabian Peninsula. We have investigated the relationship between aerodynamic roughness length and PC, and have derived a statistically significant empirical relationship between these two parameters. This relationship is applied to the POLDER-derived PC to map the aerodynamic roughness length of and areas in northern Africa and the Arabian Peninsula at the spatial resolution of POLDER (- 1/16). When degrading these data for global models, we show that the information is essentially preserved at coarser resolutions up to . This map of roughness length derived from the POLDER instrument, and a corresponding map derived from a geomorphologic classification, have been tested by comparing the predicted dust event frequencies obtained using them to dust indices (IDDI) derived from Meteosat IR observations over the Sahara desert. The agreement using the POLDER derived roughness length is at least as good as using the map of roughness length derived from the geomorphologic approach. Our results show promising new prospects for regional and global scale simulations of mineral dust emissions from and regions. Numéro de notice : A2004-065 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/0143116031000116976 En ligne : https://doi.org/10.1080/0143116031000116976 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26593
in International Journal of Remote Sensing IJRS > vol 25 n° 3 (February 2004) . - pp 603 - 626[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-04031 RAB Revue Centre de documentation En réserve L003 Exclu du prêt L'Inventaire forestier national, observatoire de la biodiversité forestière française / Gérard Dumé in Forêt entreprise, n° 155 (février 2004/1)
[article]
Titre : L'Inventaire forestier national, observatoire de la biodiversité forestière française Type de document : Article/Communication Auteurs : Gérard Dumé, Auteur Année de publication : 2004 Article en page(s) : p. 36-39 Note générale : Bibliogr. Résumé. Langues : Français (fre) Descripteur : [Termes IGN] biodiversité
[Termes IGN] forêt
[Termes IGN] France (administrative)
[Termes IGN] IFN citéRésumé : L'observatoire de la biodiversité forestière est essentiel à la gestion durable et au maintien de la richesse des milieux forestiers. L'expérience et la disposition privilégiée des équipes de l'Inventaire forestier national (IFN), proches de la forêt, sont idéales pour réaliser cette veille. Numéro de notice : IFN_4216 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=72556
in Forêt entreprise > n° 155 (février 2004/1) . - p. 36-39[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité IFN-001-P000597 PER Revue Nogent-sur-Vernisson Archives périodiques Exclu du prêt Spatial simulation for translating from land use to land cover / Daniel G. Brown in International journal of geographical information science IJGIS, vol 18 n° 1 (january - february 2004)PermalinkRemote sensing in BOREAS [BOReal Ecosystem Atmosphere Study]: Lessons learned / John A. Gamon in Remote sensing of environment, vol 89 n° 2 (30/01/2004)PermalinkEvaluation 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)PermalinkImpacts of hydrologic soil properties on drought detection with MODIS thermal data / S. Park in Remote sensing of environment, vol 89 n° 1 (15/01/2004)PermalinkHyperspectral monitoring of physiological parameters of wheat during a vegetation period using AVIS data / N. Oppelt in International Journal of Remote Sensing IJRS, vol 25 n° 1 (January 2004)PermalinkAVIRIS measurements of chlorophyll, suspended minerals, dissolved organic carbon, and turbidity in the Neuse River, North Carolina / M.A. Karaska in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 1 (January 2004)PermalinkCahiers d'habitats Natura 2000, Tome 2. Habitats côtiers / Museum national d'histoire naturelle (2004)PermalinkDéveloppement d'une méthode de cartographie de l'occupation du sol le long des cours d'eau à partir de données de télédétection / M. Perez Correa (2004)PermalinkExpert systems and Geographic Information Systems for impact assessment / A. Rodriguez-Bachiller (2004)PermalinkInventaire et suivi des zones humides par télédétection / L. Puente (2004)PermalinkLes milieux physiques continentaux / Yannick Lageat (2004)PermalinkLa recherche scientifique spatiale en France, Rapport 2004 au Cospar, Comité Mondial de la Recherche Spatiale, 35e assemblée scientifique, 18-25 juillet 2004 / Yves d' Escatha (2004)PermalinkUn SIG qui pulvérise les chenilles / Anonyme in Géomatique expert, n° 31 (01/01/2004)PermalinkTraitement des données de télédétection / Michel-Claude Girard (2004)PermalinkZones humides de l'Allier : manuel d'identification simplifiée / Conservatoire botanique national du Massif central (2004)PermalinkNuméro spécial - 2003 - Connaissance et gestion de la forêt guyanaise (Bulletin de Revue forestière française)PermalinkMapping urban areas by fusing multiple sources of coarse resolution remotely sensed data / A.M. Schneider in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 12 (December 2003)PermalinkExtending satellite remote sensing to local scales: land and water resources monitoring using high-resolution imagery / K.E. Sawaya in Remote sensing of environment, vol 88 n° 1 (30/11/2003)PermalinkLarge scale biosphere atmosphere experiment in America (Bulletin de Remote sensing of environment)PermalinkThe coregistration, calibration, and interpretation of multiseason JERS-1 SAR data over South America / Paul Siqueira in Remote sensing of environment, vol 87 n° 4 (15/11/2003)PermalinkMangrove research and coastal ecosystem studies with SPOT-4 HRVIR and TERRA ASTER in the Arabian Gulf / Hideo Saito in International Journal of Remote Sensing IJRS, vol 24 n° 21 (November 2003)PermalinkSpectral reflectance characterization of shallow lakes from the Brazilian pantanal wetlands with field and airborne hyperspectral data / L.S. Galvao in International Journal of Remote Sensing IJRS, vol 24 n° 21 (November 2003)PermalinkAirborne forest fire mapping with an adaptive infrared sensor / D. Oertel in International Journal of Remote Sensing IJRS, vol 24 n° 18 (September 2003)PermalinkCartographie des dépôts atmosphériques en France : deux approches pour les premières cartes nationales / L. Croise in Géomatique expert, n° 27 (01/09/2003)PermalinkDynamique des marais salés et changements environnementaux / Frédéric Bertrand in Photo interprétation, vol 39 n° 3 - 4 (Septembre 2003)PermalinkNotice de la carte de la végétation du parc national du Mercantour au 1:100 000 : répartition des séries dynamiques de la végétation dans le contexte biogéographique des Alpes-maritimes et de la Haute-Provence / Marcel Barbero in Ecologia mediterranea, vol 29 n° 2 (2003)PermalinkSurface soil moisture retrieval from L-band radiometry: a global regression study / T. Pellarin in IEEE Transactions on geoscience and remote sensing, vol 41 n° 9 (September 2003)PermalinkVers de nouvelles formes de gestion des marais / L. Goeldner-Gianella in Photo interprétation, vol 39 n° 3 - 4 (Septembre 2003)Permalinkvol 24 n° 13 - July 2003 - Special issue : remote sensing of the coastal marine environment (Bulletin de International Journal of Remote Sensing IJRS) / Remote sensing and photogrammetry societyPermalinkA GIS-based spatial pattern analysis model for eco-region mapping and characterization / Y. Zhou in International journal of geographical information science IJGIS, vol 17 n° 5 (july - August 2003)PermalinkSettlement design, forest fragmentation, and landscape change in Rondônia, Amazonia / M. Batistella in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 7 (July 2003)PermalinkApplications and research using remote sensing for rangeland management / E.R. Hunt in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 6 (June 2003)PermalinkCrop yield assessment from remote sensing / P.C. Doraiswamy in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 6 (June 2003)PermalinkRemote sensing techniques to assess water quality / J.C. Ritchie in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 6 (June 2003)PermalinkAnalyse diachronique de la végétation d'un îlot marin protégé / Françoise Gourmelon in Photo interprétation, vol 39 n° 2 (Juin 2003)PermalinkAnalysis of hyperspectral data for estimation of temperate forest canopy nitrogen concentration: Comparison between an Airborne (AVIRIS) and a spaceborne (Hyperion) sensor / M.L. Smith in IEEE Transactions on geoscience and remote sensing, vol 41 n° 6 (June 2003)PermalinkFusion of spectral and shape features for identification of urban surface cover types using reflective and thermal hyperspectral data / Karl Segl in ISPRS Journal of photogrammetry and remote sensing, vol 58 n° 1-2 (June - December 2003)PermalinkSpatio-temporal GIS development to aid multi-use forest management / J. Lawley in Geocarto international, vol 18 n° 2 (June - August 2003)PermalinkSpace mapping the arctic tundra / Gita Laidler in GEO:connexion, vol 2 n° 5 (may 2003)PermalinkApport de la thermographie infrarouge aéroportée à l'étude de l'hétérogénéité d'une zone humide / René Guérin in Photo interprétation, vol 39 n° 1 (Avril 2003)PermalinkDes données fiables pour des indicateurs pertinents : les données de l'IFN / Catherine Cluzeau in Forêt entreprise, n° 150 (2003/2)PermalinkEtude de zones humides à partir d'images hyperspectrales CASI : application aux fonds de vallée du massif armoricain / Laurence Hubert-Moy in Photo interprétation, vol 39 n° 1 (Avril 2003)PermalinkLes indicateurs de gestion forestière durable à l'échelle nationale / Nabila Hamza ; Gérôme Pignard in Forêt entreprise, n° 150 (2003/2)PermalinkMapping an ecological disaster in Africa: space-borne SAR monitoring of water hyacinth on Lake Victoria / L. Schouten in GIM international, vol 17 n° 4 (April 2003)Permalinkvol 39 n° 1 - Avril 2003 - La télédétection et les SIG dans le programme national de recherche sur les zones humides (PNRZH) (Bulletin de Photo interprétation)Permalink