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Les forestiers défrichent les SIG / Françoise de Blomac in SIG la lettre, n° 55 (mars 2004)
[article]
Titre : Les forestiers défrichent les SIG Type de document : Article/Communication Auteurs : Françoise de Blomac, Auteur Année de publication : 2004 Article en page(s) : pp 1 - 5 Langues : Français (fre) Descripteur : [Vedettes matières IGN] Applications SIG
[Termes IGN] ArcInfo
[Termes IGN] ArcView
[Termes IGN] base de données localisées
[Termes IGN] forêt
[Termes IGN] ilot boisé
[Termes IGN] Inventaire Forestier National (organisme France)
[Termes IGN] photo-interprétation
[Termes IGN] SIG nomade
[Termes IGN] sylviculture
[Termes IGN] système d'information géographiqueRésumé : (documentaliste) "La forêt est un milieu complexe où interviennent de nombreuses professions". L'information géographique se révèle utile pour aborder ce milieu sous ses différents aspects. Les organismes administratifs comme les sociétés privées ont recours aux SIG pour collecter, traiter et conserver l'information géographique. L'Office National des Forêts utilise les SIG depuis 1990 pour la gestion quotidienne de l'information géographique et entretient des bases de données de plus en plus riches et détaillées. L'Inventaire Forestier National a développé un savoir-faire géomatique pour cartographier systématiquement les surfaces boisées françaises. Une coopérative forestière a développé une chaîne de traitement des informations géographiques pour ses adhérents qui leur permet de suivre l'exploitation par des Plans Simples de Gestion. D'autres exemples sont encore donnés. Numéro de notice : A2004-105 Affiliation des auteurs : non IGN Thématique : FORET/GEOMATIQUE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26632
in SIG la lettre > n° 55 (mars 2004) . - pp 1 - 5[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 286-04031 RAB Revue Centre de documentation En réserve L003 Disponible Impact of imagery temporal on land-cover change detection monitoring / R.S. Lunetta in Remote sensing of environment, vol 89 n° 4 (29/02/2004)
[article]
Titre : Impact of imagery temporal on land-cover change detection monitoring Type de document : Article/Communication Auteurs : R.S. Lunetta, Auteur ; D.M. Johnson, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 444 - 454 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] acquisition d'images
[Termes IGN] analyse diachronique
[Termes IGN] Caroline du Nord (Etats-Unis)
[Termes IGN] détection de changement
[Termes IGN] écosystème
[Termes IGN] flore locale
[Termes IGN] forêt
[Termes IGN] image Landsat-TM
[Termes IGN] luminance lumineuse
[Termes IGN] occupation du sol
[Termes IGN] surveillance forestièreRésumé : (Auteur) An important consideration for monitoring land-cover (LC) change is the nominal temporal frequency of remote sensor data acquisitions required to adequately characterize change events. Ecosystem-specific regeneration rates are an important consideration for determining the required frequency of data collections to minimize change omission errors. Clear-cut forested areas in north central North Carolina undergo rapid colonization from pioneer (replacement) vegetation that is often difficult to differentiate spectrally from that previously present. This study compared change detection results for temporal frequencies corresponding to 3-, 7-, and 10-year time intervals for near-anniversary date Landsat 5 Thematic Mapper (TM) data acquisitions corresponding to a single path/row. Change detection was performed using an identical change vector analysis (CYA) technique for all imagery dates. Although the accuracy of the 3-year analysis was acceptable (86.3%, K = 0.55), a significant level of change omission errors resulted (51.7%). Accuracies associated with both the 7-year (43.6%, K = 0. 10) and 10year (37.2%, K= 0.05) temporal frequency analyses performed poorly, with excessive change omission errors of 84.8% and 86.3%, respectively. The average rate of LC change observed over the study area for the 13-year index period (1987-2000) was approximately 1.0% per annum. Overall results indicated that a minimum of 3-4-year temporal data acquisition frequency is required to monitor LC change events in north central North Carolina. Reductions in change omission errors could probably best be achieved by further increasing temporal data acquisition frequencies to a 1-2-year time interval. Numéro de notice : A2004-071 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2003.10.022 En ligne : https://doi.org/10.1016/j.rse.2003.10.022 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26599
in Remote sensing of environment > vol 89 n° 4 (29/02/2004) . - pp 444 - 454[article]Monitoring forest conditions in a protected Mediterranean coastal area by the analysis of multiyear NDVI data / F. Maselli in Remote sensing of environment, vol 89 n° 4 (29/02/2004)
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Titre : Monitoring forest conditions in a protected Mediterranean coastal area by the analysis of multiyear NDVI data Type de document : Article/Communication Auteurs : F. Maselli, Auteur Année de publication : 2004 Article en page(s) : pp 423 - 433 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse diachronique
[Termes IGN] forêt
[Termes IGN] image Landsat-TM
[Termes IGN] image NOAA-AVHRR
[Termes IGN] littoral méditerranéen
[Termes IGN] Normalized Difference Vegetation Index
[Termes IGN] surveillance forestièreRésumé : (Auteur) The operational utilization of remote sensing techniques for monitoring terrestrial ecosystems is often constrained by problems of undersampling in space and time, particularly in heterogeneous and unstable Mediterranean environments. The current work deals with the use of the NOAA-AVHRR and LandsatTM/ETM+ images to produce long-term NDVI data series characterising coniferous and broadleaved forests in a protected coastal area in Tuscany (Central Italy). Two methods to extract NDVI values of relatively small vegetated areas from NOAA-AVHRR data were first evaluated by comparison to estimates from higher resolution LandsatTM/ETM+ images. The optimal method was then applied to multitemporal AVHRR data series to derive 10-day NDVI profiles of coniferous and broadleaved forests over a 15-year period (19862000). Trend analyses performed on these data series showed that notable NDVI decreases occurred during the study period, particularly for the coniferous forest in summer and early fall. Further analysis carried out on local meteorological measurements led to identify the likely causes of these negative trends in contemporaneous winter rainfall decreases which were significantly correlated with the found NDVI variations. Numéro de notice : A2004-069 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2003.10.020 En ligne : https://doi.org/10.1016/j.rse.2003.10.020 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26597
in Remote sensing of environment > vol 89 n° 4 (29/02/2004) . - pp 423 - 433[article]The consequences of urban transformation on net primary productivity in the United States / M.L. Imhoff in Remote sensing of environment, vol 89 n° 4 (29/02/2004)
[article]
Titre : The consequences of urban transformation on net primary productivity in the United States Type de document : Article/Communication Auteurs : M.L. Imhoff, Auteur ; L. Bounoua, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 434 - 443 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] bilan du carbone
[Termes IGN] biogéographie
[Termes IGN] biologie
[Termes IGN] Etats-Unis
[Termes IGN] photosynthèse
[Termes IGN] production agricole
[Termes IGN] urbanisation
[Termes IGN] utilisation du sol
[Termes IGN] variable biophysique (végétation)Résumé : (Auteur) We use data from two satellites and a terrestrial carbon model to quantify the impact of urbanization on the carbon cycle and food production in the US as a result of reduced net primary productivity (NPP). Our results show that urbanization is taking place on the most fertile lands and hence has a disproportionately large overall negative impact on NPP. Urban land transformation in the US has reduced the amount of carbon fixed through photosynthesis by 0.04 pg per year or 1.6% of the pre-urban input. The reduction is enough to offset the 1.8% gain made by the conversion of land to agricultural use, even though urbanization covers an area less than 3% of the land surface in the US and agricultural lands approach 29% of the total land area. At local and regional scales, urbanization increases NPP in resource-limited regions and through localized warming "urban heat" contributes to the extension of the growing season in cold regions. In terms of biologically available energy, the loss of NPP due to urbanization of agricultural lands alone is equivalent to the caloric requirement of 16.5 million people, or about 6% of the US population. Numéro de notice : A2004-070 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2003.10.015 En ligne : https://doi.org/10.1016/j.rse.2003.10.015 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26598
in Remote sensing of environment > vol 89 n° 4 (29/02/2004) . - pp 434 - 443[article]Carbon mass fluxes of forests in Belgium determined with low resolution optical sensors / F. Veroustraete in International Journal of Remote Sensing IJRS, vol 25 n° 4 (February 2004)
[article]
Titre : Carbon mass fluxes of forests in Belgium determined with low resolution optical sensors Type de document : Article/Communication Auteurs : F. Veroustraete, Auteur ; H. Sabbe, Auteur ; D.P. Rasse, Auteur ; L. Bertels, Auteur Année de publication : 2004 Article en page(s) : pp 769 - 792 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image optique
[Termes IGN] Belgique
[Termes IGN] bilan du carbone
[Termes IGN] classificateur paramétrique
[Termes IGN] corrélation
[Termes IGN] covariance
[Termes IGN] écosystème forestier
[Termes IGN] forêt
[Termes IGN] image NOAA-AVHRR
[Termes IGN] image optique
[Termes IGN] image SPOT-Végétation
[Termes IGN] turbulenceRésumé : (Auteur) The primary objective of this paper is to describe the validation of a parametric model (C-Fix) designed to estimate the basic carbon mass fluxes of forests in Belgium. Most validation efforts in the literature are based on point measurements. Since landscapes in Belgium are quite heterogeneous, the spatial up-scaling of a point measurement to the level of a sensor pixel is a crucial issue. Process based models quite often have a large set of input variables, some of them hardly available or not measurable on a regional basis; on the other hand most of the process based models possess a prognostic capacity. The parametric C-Fix model estimates carbon mass fluxes from local, regional to continental scales. It ingests only a modest number of meteorological input variables, including satellite observations. Parametric models do not possess a prognostic capacity, but the spatial up-scaling by the use of remote sensing data is much more straightforward than with process models. In this paper, we describe the validation of C-Fix with eddy covariance NEP (net ecosystem production) measurements and further applied C-Fix for the mapping of the geographical distribution of carbon mass fluxes over the entire Belgian territory, using NOAA-AVHRR (1997) and SPOT4-VGT imagery (April 1998-March 1999). We combine a forest probability map, derived from NOAA data for 1997 with the mapped estimates of Belgian NEP to obtain forest NEP per image pixel. Forest NEP is validated regionally, with measurements of carbon exchange obtained at two Belgian Euroflux eddy covariance tower sites (the Brasschaat, 'Inslag' and Vielsalm, 'Tinscubois' forest sites). A correlation analysis is performed for the estimated forest NEPs at both Euroflux sites and the NEP measured there, assumed to be primarily from forest. Finally, a correlation analysis with a process-based stand scale model (ASPECTS) is performed for the two forest sites, as a cross cheek on the validation results. Our results demonstrate that a parametric model, like C-Fix, provides a good basis to estimate the evolution and geographical distribution of the main constituents of the carbon budget of terrestrial ecosystems, in this study specifically forest ecosystems at the regional scale (Belgium). Numéro de notice : A2004-075 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/0143116031000115238 En ligne : https://doi.org/10.1080/0143116031000115238 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26603
in International Journal of Remote Sensing IJRS > vol 25 n° 4 (February 2004) . - pp 769 - 792[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-04041 RAB Revue Centre de documentation En réserve L003 Exclu du prêt Estimating fragmentation effects on simulated forest net primary productivity derived from satellite imagery / Nicholas C. Coops in International Journal of Remote Sensing IJRS, vol 25 n° 4 (February 2004)PermalinkImproving tropical forest mapping using multi-date Landsat TM data and pre-classification image smoothing / C. Tottrup in International Journal of Remote Sensing IJRS, vol 25 n° 4 (February 2004)PermalinkProspects for quantifying structure, floristic composition and species richness of tropical forests / T.W. Gillespie in International Journal of Remote Sensing IJRS, vol 25 n° 4 (February 2004)PermalinkDelineation of forest/nonforest land use classes using nearest neighbor methods / R. Haapanen in Remote sensing of environment, vol 89 n° 3 (15/02/2004)PermalinkL'Inventaire forestier national, observatoire de la biodiversité forestière française / Gérard Dumé in Forêt entreprise, n° 155 (février 2004/1)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)PermalinkToward universal broad leaf chlorophyll indices using PROSPECT simulated database and hyperspectral reflectance measurements / G. Le Maire in Remote sensing of environment, vol 89 n° 1 (15/01/2004)PermalinkThe EuroSTARRS airborne campaign in support of the SMOS mission: first results over land surfaces / K. Saleh in International Journal of Remote Sensing IJRS, vol 25 n° 1 (January 2004)PermalinkAutomated subpixel photobathymetry and water quality mapping / R.L. Huguenin in Photogrammetric Engineering & Remote Sensing, PERS, vol 70 n° 1 (January 2004)PermalinkA contribution to the knowledge of the order Quercetalia ilicis Br.-Bl. ex Molinier 1934 of Sardinia / G. Bacchetta in Fitosociologia, vol 41 n° 1 (2004)PermalinkDéveloppement d'une aide de mise en forme cartographique pour images satellites dans le cadre du projet METIS Forêts / A. Caen (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)PermalinkDEXA 2004, Fifteenth International Workshop on Database and Expert Systems Applications / Fernando Galindo (2004)PermalinkInventaire forestier départemental, Ain, 3ème inventaire 1995 / Inventaire forestier national (1958 - 2011) (2004)PermalinkInventaire forestier départemental, Alpes-Maritimes, 3ème inventaire 2002 / Inventaire forestier national (1958 - 2011) (2004)PermalinkInventaire forestier départemental, Bas-Rhin, 3ème inventaire 2002 / Inventaire forestier national (1958 - 2011) (2004)PermalinkInventaire forestier départemental, Cher, 3ème inventaire (1999) / Inventaire forestier national (1958 - 2011) (2004)PermalinkInventaire forestier départemental, Haut-Rhin, 3ème inventaire 1999 / Inventaire forestier national (1958 - 2011) (2004)PermalinkInventaire forestier départemental, Indre-et-Loire, 3ème inventaire (1999) / Inventaire forestier national (1958 - 2011) (2004)PermalinkInventaire forestier départemental, Landes, résultats 4ème inventaire 1999 / Inventaire forestier national (1958 - 2011) (2004)Permalink