Coupling potential of ICESat/GLAS and SRTM for the discrimination of forest landscape types in French Guiana
Identifieur interne : 000023 ( France/Analysis ); précédent : 000022; suivant : 000024Coupling potential of ICESat/GLAS and SRTM for the discrimination of forest landscape types in French Guiana
Auteurs : I. Fayad [France] ; N. Baghdadi [France] ; V. Gond [France] ; J. S. Bailly [France] ; N. Barbier [France] ; M. El Hajj [France] ; F. Fabre [France]Source :
- International Journal of Applied Earth Observation and Geoinformation [ 0303-2434 ] ; 2014.
Descripteurs français
- mix :
Abstract
The Shuttle Radar Topography Mission (SRTM) has produced the most accurate nearly global elevation dataset to date. Over vegetated areas, the measured SRTM elevations are the result of a complex interaction between radar waves and tree crowns. In this study, waveforms acquired by the Geoscience Laser Altimeter System (GLAS) were combined with SRTM elevations to discriminate the five forest landscape types (LTs) in French Guiana. Two differences were calculated: (1) penetration depth, defined as the GLAS highest elevations minus the SRTM elevations, and (2) the GLAS centroid elevations minus the SRTM elevations. The results show that these differences were similar for the five LTs, and they increased as a function of the GLAS canopy height and of the SRTM roughness index. Next, a Random Forest (RF) classifier was used to analyze the coupling potential of GLAS and SRTM in the discrimination of forest landscape types in French Guiana. The parameters used in the RF classification were the GLAS canopy height, the SRTM roughness index, the difference between the GLAS highest elevations and the SRTM elevations and the difference between the GLAS centroid elevations and the SRTM elevations. Discrimination of the five forest landscape types in French Guiana was possible, with an overall classification accuracy of 81.3% and a kappa coefficient of 0.75. All forest LTs were well classified with an accuracy varying from 78.4% to 97.5%. Finally, differences of near coincident GLAS waveforms, one from the wet season and one from the dry season, were analyzed. The results showed that the open forest LT (LT12), in some locations, contains trees that lose leaves during the dry season. These trees allow LT12 to be easily discriminated from the other LTs that retain their leaves using the following three criteria: (1) difference between the GLAS centroid elevations and the SRTM elevations, (2) ratio of top energy in the wet season to top energy in the dry season, or (3) ratio of ground energy in the wet season to ground energy in the dry season.
Url:
DOI: 10.1016/j.jag.2014.04.005
Affiliations:
Links toward previous steps (curation, corpus...)
- to stream Hal, to step Corpus: 000009
- to stream Hal, to step Curation: 000009
- to stream Hal, to step Checkpoint: 000012
- to stream Main, to step Merge: 000181
- to stream Main, to step Curation: 000182
- to stream Main, to step Exploration: 000182
- to stream France, to step Extraction: 000023
Links to Exploration step
Hal:hal-01059051Le document en format XML
<record><TEI><teiHeader><fileDesc><titleStmt><title xml:lang="en">Coupling potential of ICESat/GLAS and SRTM for the discrimination of forest landscape types in French Guiana</title><author><name sortKey="Fayad, I" sort="Fayad, I" uniqKey="Fayad I" first="I." last="Fayad">I. Fayad</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-182888" status="VALID"> <orgName>Territoires, Environnement, Télédétection et Information Spatiale</orgName> <orgName type="acronym">UMR TETIS</orgName> <desc> <address> <addrLine>Maison de la télédétection - 500 rue Jean-François Breton - 34093 Montpellier Cedex 5</addrLine> <country key="FR"></country> </address> <ref type="url">http://tetis.teledetection.fr/</ref> </desc> <listRelation> <relation name="UMR91" active="#struct-11574" type="direct"></relation> <relation active="#struct-148117" type="direct"></relation> <relation active="#struct-302049" type="direct"></relation> </listRelation><tutelles><tutelle name="UMR91" active="#struct-11574" type="direct"><org type="institution" xml:id="struct-11574" status="VALID"> <orgName>Centre de Coopération Internationale en Recherche Agronomique pour le Développement</orgName> <orgName type="acronym">CIRAD</orgName> <desc> <address> <addrLine>42, rue Scheffer 75116 Paris</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.cirad.fr</ref> </desc></org></tutelle><tutelle active="#struct-148117" type="direct"><org type="institution" xml:id="struct-148117" status="VALID"> <orgName>AgroParisTech</orgName> <desc> <address> <addrLine>16 rue Claude Bernard F-75231 Paris Cedex 05</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.agroparistech.fr/</ref> </desc></org></tutelle><tutelle active="#struct-302049" type="direct"><org type="institution" xml:id="struct-302049" status="VALID"> <orgName>Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture</orgName> <orgName type="acronym">IRSTEA</orgName> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.irstea.fr</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Baghdadi, N" sort="Baghdadi, N" uniqKey="Baghdadi N" first="N." last="Baghdadi">N. Baghdadi</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-182888" status="VALID"> <orgName>Territoires, Environnement, Télédétection et Information Spatiale</orgName> <orgName type="acronym">UMR TETIS</orgName> <desc> <address> <addrLine>Maison de la télédétection - 500 rue Jean-François Breton - 34093 Montpellier Cedex 5</addrLine> <country key="FR"></country> </address> <ref type="url">http://tetis.teledetection.fr/</ref> </desc> <listRelation> <relation name="UMR91" active="#struct-11574" type="direct"></relation> <relation active="#struct-148117" type="direct"></relation> <relation active="#struct-302049" type="direct"></relation> </listRelation><tutelles><tutelle name="UMR91" active="#struct-11574" type="direct"><org type="institution" xml:id="struct-11574" status="VALID"> <orgName>Centre de Coopération Internationale en Recherche Agronomique pour le Développement</orgName> <orgName type="acronym">CIRAD</orgName> <desc> <address> <addrLine>42, rue Scheffer 75116 Paris</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.cirad.fr</ref> </desc></org></tutelle><tutelle active="#struct-148117" type="direct"><org type="institution" xml:id="struct-148117" status="VALID"> <orgName>AgroParisTech</orgName> <desc> <address> <addrLine>16 rue Claude Bernard F-75231 Paris Cedex 05</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.agroparistech.fr/</ref> </desc></org></tutelle><tutelle active="#struct-302049" type="direct"><org type="institution" xml:id="struct-302049" status="VALID"> <orgName>Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture</orgName> <orgName type="acronym">IRSTEA</orgName> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.irstea.fr</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Gond, V" sort="Gond, V" uniqKey="Gond V" first="V." last="Gond">V. Gond</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-82680" status="VALID"> <orgName>Adaptation agroécologique et innovation variétale</orgName> <orgName type="acronym">AIVA</orgName> <desc> <address> <addrLine>Avenue Agropolis TA A-104 / 01 34398 Montpellier Cedex 5</addrLine> <country key="FR"></country> </address> </desc> <listRelation> <relation name="UPR104" active="#struct-11574" type="direct"></relation> </listRelation><tutelles><tutelle name="UPR104" active="#struct-11574" type="direct"><org type="institution" xml:id="struct-11574" status="VALID"> <orgName>Centre de Coopération Internationale en Recherche Agronomique pour le Développement</orgName> <orgName type="acronym">CIRAD</orgName> <desc> <address> <addrLine>42, rue Scheffer 75116 Paris</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.cirad.fr</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Bailly, J S" sort="Bailly, J S" uniqKey="Bailly J" first="J. S." last="Bailly">J. S. Bailly</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-182888" status="VALID"> <orgName>Territoires, Environnement, Télédétection et Information Spatiale</orgName> <orgName type="acronym">UMR TETIS</orgName> <desc> <address> <addrLine>Maison de la télédétection - 500 rue Jean-François Breton - 34093 Montpellier Cedex 5</addrLine> <country key="FR"></country> </address> <ref type="url">http://tetis.teledetection.fr/</ref> </desc> <listRelation> <relation name="UMR91" active="#struct-11574" type="direct"></relation> <relation active="#struct-148117" type="direct"></relation> <relation active="#struct-302049" type="direct"></relation> </listRelation><tutelles><tutelle name="UMR91" active="#struct-11574" type="direct"><org type="institution" xml:id="struct-11574" status="VALID"> <orgName>Centre de Coopération Internationale en Recherche Agronomique pour le Développement</orgName> <orgName type="acronym">CIRAD</orgName> <desc> <address> <addrLine>42, rue Scheffer 75116 Paris</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.cirad.fr</ref> </desc></org></tutelle><tutelle active="#struct-148117" type="direct"><org type="institution" xml:id="struct-148117" status="VALID"> <orgName>AgroParisTech</orgName> <desc> <address> <addrLine>16 rue Claude Bernard F-75231 Paris Cedex 05</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.agroparistech.fr/</ref> </desc></org></tutelle><tutelle active="#struct-302049" type="direct"><org type="institution" xml:id="struct-302049" status="VALID"> <orgName>Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture</orgName> <orgName type="acronym">IRSTEA</orgName> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.irstea.fr</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Barbier, N" sort="Barbier, N" uniqKey="Barbier N" first="N." last="Barbier">N. Barbier</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-609" status="VALID"> <idno type="RNSR">200317641S</idno> <orgName>Botanique et Bioinformatique de l'Architecture des Plantes</orgName> <orgName type="acronym">UMR AMAP</orgName> <date type="start">2001</date> <desc> <address> <addrLine>Bd de la Lironde TA A-51/ PS 2 34398 Montpellier cedex 5</addrLine> <country key="FR"></country> </address> <ref type="url">http://amap.cirad.fr/</ref> </desc> <listRelation> <relation name="UMR 5120" active="#struct-11574" type="direct"></relation> <relation name="UMR 5120" active="#struct-135709" type="direct"></relation> <relation name="UMR 5120" active="#struct-410122" type="direct"></relation> <relation name="UMR 5120" active="#struct-441569" type="direct"></relation> <relation name="UMR 5120" active="#struct-451860" type="direct"></relation> </listRelation><tutelles><tutelle name="UMR 5120" active="#struct-11574" type="direct"><org type="institution" xml:id="struct-11574" status="VALID"> <orgName>Centre de Coopération Internationale en Recherche Agronomique pour le Développement</orgName> <orgName type="acronym">CIRAD</orgName> <desc> <address> <addrLine>42, rue Scheffer 75116 Paris</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.cirad.fr</ref> </desc></org></tutelle><tutelle name="UMR 5120" active="#struct-135709" type="direct"><org type="institution" xml:id="struct-135709" status="VALID"> <orgName>Institut national de la recherche agronomique [Montpellier]</orgName> <orgName type="acronym">INRA Montpellier</orgName> <desc> <address> <addrLine>2 Place Viala, 34060 Montpellier cedex 1</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.montpellier.inra.fr/</ref> </desc></org></tutelle><tutelle name="UMR 5120" active="#struct-410122" type="direct"><org type="institution" xml:id="struct-410122" status="VALID"> <idno type="ISNI">0000000120970141</idno> <orgName>Université de Montpellier</orgName> <orgName type="acronym">UM</orgName> <desc> <address> <addrLine>163 rue Auguste Broussonnet - 34090 Montpellier</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.umontpellier.fr/</ref> </desc></org></tutelle><tutelle name="UMR 5120" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="IdRef">02636817X</idno><idno type="ISNI">0000000122597504</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle><tutelle name="UMR 5120" active="#struct-451860" type="direct"><org type="institution" xml:id="struct-451860" status="VALID"> <orgName>Institut de Recherche pour le Développement</orgName> <orgName type="acronym">IRD [France-Sud]</orgName> <desc> <address> <addrLine>911 avenue Agropolis,BP 6450134394 Montpellier cedex 5</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.france-sud.ird.fr/</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="El Hajj, M" sort="El Hajj, M" uniqKey="El Hajj M" first="M." last="El Hajj">M. El Hajj</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-73678" status="VALID"> <orgName>NOVELTIS</orgName> <desc> <address> <addrLine>Parc Technologique du Canal 2, avenue de l'Europe 31520 Ramonville-Saint-Agne France Tél : +33 (0)5 62 88 11 11 Fax : +33 (0)5 62 88 11 12 E-mail : noveltis@noveltis.fr</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.noveltis.fr/</ref> </desc> <listRelation> <relation active="#struct-319727" type="direct"></relation> </listRelation><tutelles><tutelle active="#struct-319727" type="direct"><org type="institution" xml:id="struct-319727" status="INCOMING"> <orgName>Compagnie</orgName> <desc> <address> <country key="FR"></country> </address> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Fabre, F" sort="Fabre, F" uniqKey="Fabre F" first="F." last="Fabre">F. Fabre</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-88927" status="VALID"> <orgName>EADS Innovation Works [Toulouse]</orgName> <desc> <address> <addrLine>18 rue Marius Terce - BP 13050 - 31025 Toulouse</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.eads.com/eads/france/fr/notre-groupe/l-innovation-chez-eads/innovation-works.html</ref> </desc> <listRelation> <relation active="#struct-300780" type="direct"></relation> </listRelation><tutelles><tutelle active="#struct-300780" type="direct"><org type="institution" xml:id="struct-300780" status="VALID"> <orgName>EADS</orgName> <desc> <address> <country key="FR"></country> </address> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author></titleStmt><publicationStmt><idno type="wicri:source">HAL</idno><idno type="RBID">Hal:hal-01059051</idno><idno type="halId">hal-01059051</idno><idno type="halUri">https://hal.archives-ouvertes.fr/hal-01059051</idno><idno type="url">https://hal.archives-ouvertes.fr/hal-01059051</idno><idno type="doi">10.1016/j.jag.2014.04.005</idno><date when="2014">2014</date><idno type="wicri:Area/Hal/Corpus">000009</idno><idno type="wicri:Area/Hal/Curation">000009</idno><idno type="wicri:Area/Hal/Checkpoint">000012</idno><idno type="wicri:explorRef" wicri:stream="Hal" wicri:step="Checkpoint">000012</idno><idno type="wicri:doubleKey">0303-2434:2014:Fayad I:coupling:potential:of</idno><idno type="wicri:Area/Main/Merge">000181</idno><idno type="wicri:Area/Main/Curation">000182</idno><idno type="wicri:Area/Main/Exploration">000182</idno><idno type="wicri:Area/France/Extraction">000023</idno></publicationStmt><sourceDesc><biblStruct><analytic><title xml:lang="en">Coupling potential of ICESat/GLAS and SRTM for the discrimination of forest landscape types in French Guiana</title><author><name sortKey="Fayad, I" sort="Fayad, I" uniqKey="Fayad I" first="I." last="Fayad">I. Fayad</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-182888" status="VALID"> <orgName>Territoires, Environnement, Télédétection et Information Spatiale</orgName> <orgName type="acronym">UMR TETIS</orgName> <desc> <address> <addrLine>Maison de la télédétection - 500 rue Jean-François Breton - 34093 Montpellier Cedex 5</addrLine> <country key="FR"></country> </address> <ref type="url">http://tetis.teledetection.fr/</ref> </desc> <listRelation> <relation name="UMR91" active="#struct-11574" type="direct"></relation> <relation active="#struct-148117" type="direct"></relation> <relation active="#struct-302049" type="direct"></relation> </listRelation><tutelles><tutelle name="UMR91" active="#struct-11574" type="direct"><org type="institution" xml:id="struct-11574" status="VALID"> <orgName>Centre de Coopération Internationale en Recherche Agronomique pour le Développement</orgName> <orgName type="acronym">CIRAD</orgName> <desc> <address> <addrLine>42, rue Scheffer 75116 Paris</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.cirad.fr</ref> </desc></org></tutelle><tutelle active="#struct-148117" type="direct"><org type="institution" xml:id="struct-148117" status="VALID"> <orgName>AgroParisTech</orgName> <desc> <address> <addrLine>16 rue Claude Bernard F-75231 Paris Cedex 05</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.agroparistech.fr/</ref> </desc></org></tutelle><tutelle active="#struct-302049" type="direct"><org type="institution" xml:id="struct-302049" status="VALID"> <orgName>Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture</orgName> <orgName type="acronym">IRSTEA</orgName> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.irstea.fr</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Baghdadi, N" sort="Baghdadi, N" uniqKey="Baghdadi N" first="N." last="Baghdadi">N. Baghdadi</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-182888" status="VALID"> <orgName>Territoires, Environnement, Télédétection et Information Spatiale</orgName> <orgName type="acronym">UMR TETIS</orgName> <desc> <address> <addrLine>Maison de la télédétection - 500 rue Jean-François Breton - 34093 Montpellier Cedex 5</addrLine> <country key="FR"></country> </address> <ref type="url">http://tetis.teledetection.fr/</ref> </desc> <listRelation> <relation name="UMR91" active="#struct-11574" type="direct"></relation> <relation active="#struct-148117" type="direct"></relation> <relation active="#struct-302049" type="direct"></relation> </listRelation><tutelles><tutelle name="UMR91" active="#struct-11574" type="direct"><org type="institution" xml:id="struct-11574" status="VALID"> <orgName>Centre de Coopération Internationale en Recherche Agronomique pour le Développement</orgName> <orgName type="acronym">CIRAD</orgName> <desc> <address> <addrLine>42, rue Scheffer 75116 Paris</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.cirad.fr</ref> </desc></org></tutelle><tutelle active="#struct-148117" type="direct"><org type="institution" xml:id="struct-148117" status="VALID"> <orgName>AgroParisTech</orgName> <desc> <address> <addrLine>16 rue Claude Bernard F-75231 Paris Cedex 05</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.agroparistech.fr/</ref> </desc></org></tutelle><tutelle active="#struct-302049" type="direct"><org type="institution" xml:id="struct-302049" status="VALID"> <orgName>Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture</orgName> <orgName type="acronym">IRSTEA</orgName> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.irstea.fr</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Gond, V" sort="Gond, V" uniqKey="Gond V" first="V." last="Gond">V. Gond</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-82680" status="VALID"> <orgName>Adaptation agroécologique et innovation variétale</orgName> <orgName type="acronym">AIVA</orgName> <desc> <address> <addrLine>Avenue Agropolis TA A-104 / 01 34398 Montpellier Cedex 5</addrLine> <country key="FR"></country> </address> </desc> <listRelation> <relation name="UPR104" active="#struct-11574" type="direct"></relation> </listRelation><tutelles><tutelle name="UPR104" active="#struct-11574" type="direct"><org type="institution" xml:id="struct-11574" status="VALID"> <orgName>Centre de Coopération Internationale en Recherche Agronomique pour le Développement</orgName> <orgName type="acronym">CIRAD</orgName> <desc> <address> <addrLine>42, rue Scheffer 75116 Paris</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.cirad.fr</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Bailly, J S" sort="Bailly, J S" uniqKey="Bailly J" first="J. S." last="Bailly">J. S. Bailly</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-182888" status="VALID"> <orgName>Territoires, Environnement, Télédétection et Information Spatiale</orgName> <orgName type="acronym">UMR TETIS</orgName> <desc> <address> <addrLine>Maison de la télédétection - 500 rue Jean-François Breton - 34093 Montpellier Cedex 5</addrLine> <country key="FR"></country> </address> <ref type="url">http://tetis.teledetection.fr/</ref> </desc> <listRelation> <relation name="UMR91" active="#struct-11574" type="direct"></relation> <relation active="#struct-148117" type="direct"></relation> <relation active="#struct-302049" type="direct"></relation> </listRelation><tutelles><tutelle name="UMR91" active="#struct-11574" type="direct"><org type="institution" xml:id="struct-11574" status="VALID"> <orgName>Centre de Coopération Internationale en Recherche Agronomique pour le Développement</orgName> <orgName type="acronym">CIRAD</orgName> <desc> <address> <addrLine>42, rue Scheffer 75116 Paris</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.cirad.fr</ref> </desc></org></tutelle><tutelle active="#struct-148117" type="direct"><org type="institution" xml:id="struct-148117" status="VALID"> <orgName>AgroParisTech</orgName> <desc> <address> <addrLine>16 rue Claude Bernard F-75231 Paris Cedex 05</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.agroparistech.fr/</ref> </desc></org></tutelle><tutelle active="#struct-302049" type="direct"><org type="institution" xml:id="struct-302049" status="VALID"> <orgName>Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture</orgName> <orgName type="acronym">IRSTEA</orgName> <desc> <address> <country key="FR"></country> </address> <ref type="url">http://www.irstea.fr</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Barbier, N" sort="Barbier, N" uniqKey="Barbier N" first="N." last="Barbier">N. Barbier</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-609" status="VALID"> <idno type="RNSR">200317641S</idno> <orgName>Botanique et Bioinformatique de l'Architecture des Plantes</orgName> <orgName type="acronym">UMR AMAP</orgName> <date type="start">2001</date> <desc> <address> <addrLine>Bd de la Lironde TA A-51/ PS 2 34398 Montpellier cedex 5</addrLine> <country key="FR"></country> </address> <ref type="url">http://amap.cirad.fr/</ref> </desc> <listRelation> <relation name="UMR 5120" active="#struct-11574" type="direct"></relation> <relation name="UMR 5120" active="#struct-135709" type="direct"></relation> <relation name="UMR 5120" active="#struct-410122" type="direct"></relation> <relation name="UMR 5120" active="#struct-441569" type="direct"></relation> <relation name="UMR 5120" active="#struct-451860" type="direct"></relation> </listRelation><tutelles><tutelle name="UMR 5120" active="#struct-11574" type="direct"><org type="institution" xml:id="struct-11574" status="VALID"> <orgName>Centre de Coopération Internationale en Recherche Agronomique pour le Développement</orgName> <orgName type="acronym">CIRAD</orgName> <desc> <address> <addrLine>42, rue Scheffer 75116 Paris</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.cirad.fr</ref> </desc></org></tutelle><tutelle name="UMR 5120" active="#struct-135709" type="direct"><org type="institution" xml:id="struct-135709" status="VALID"> <orgName>Institut national de la recherche agronomique [Montpellier]</orgName> <orgName type="acronym">INRA Montpellier</orgName> <desc> <address> <addrLine>2 Place Viala, 34060 Montpellier cedex 1</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.montpellier.inra.fr/</ref> </desc></org></tutelle><tutelle name="UMR 5120" active="#struct-410122" type="direct"><org type="institution" xml:id="struct-410122" status="VALID"> <idno type="ISNI">0000000120970141</idno> <orgName>Université de Montpellier</orgName> <orgName type="acronym">UM</orgName> <desc> <address> <addrLine>163 rue Auguste Broussonnet - 34090 Montpellier</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.umontpellier.fr/</ref> </desc></org></tutelle><tutelle name="UMR 5120" active="#struct-441569" type="direct"><org type="institution" xml:id="struct-441569" status="VALID"><idno type="IdRef">02636817X</idno><idno type="ISNI">0000000122597504</idno><orgName>Centre National de la Recherche Scientifique</orgName><orgName type="acronym">CNRS</orgName><date type="start">1939-10-19</date><desc><address><country key="FR"></country></address><ref type="url">http://www.cnrs.fr/</ref></desc></org></tutelle><tutelle name="UMR 5120" active="#struct-451860" type="direct"><org type="institution" xml:id="struct-451860" status="VALID"> <orgName>Institut de Recherche pour le Développement</orgName> <orgName type="acronym">IRD [France-Sud]</orgName> <desc> <address> <addrLine>911 avenue Agropolis,BP 6450134394 Montpellier cedex 5</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.france-sud.ird.fr/</ref> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="El Hajj, M" sort="El Hajj, M" uniqKey="El Hajj M" first="M." last="El Hajj">M. El Hajj</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-73678" status="VALID"> <orgName>NOVELTIS</orgName> <desc> <address> <addrLine>Parc Technologique du Canal 2, avenue de l'Europe 31520 Ramonville-Saint-Agne France Tél : +33 (0)5 62 88 11 11 Fax : +33 (0)5 62 88 11 12 E-mail : noveltis@noveltis.fr</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.noveltis.fr/</ref> </desc> <listRelation> <relation active="#struct-319727" type="direct"></relation> </listRelation><tutelles><tutelle active="#struct-319727" type="direct"><org type="institution" xml:id="struct-319727" status="INCOMING"> <orgName>Compagnie</orgName> <desc> <address> <country key="FR"></country> </address> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author><author><name sortKey="Fabre, F" sort="Fabre, F" uniqKey="Fabre F" first="F." last="Fabre">F. Fabre</name><affiliation wicri:level="1"><hal:affiliation type="laboratory" xml:id="struct-88927" status="VALID"> <orgName>EADS Innovation Works [Toulouse]</orgName> <desc> <address> <addrLine>18 rue Marius Terce - BP 13050 - 31025 Toulouse</addrLine> <country key="FR"></country> </address> <ref type="url">http://www.eads.com/eads/france/fr/notre-groupe/l-innovation-chez-eads/innovation-works.html</ref> </desc> <listRelation> <relation active="#struct-300780" type="direct"></relation> </listRelation><tutelles><tutelle active="#struct-300780" type="direct"><org type="institution" xml:id="struct-300780" status="VALID"> <orgName>EADS</orgName> <desc> <address> <country key="FR"></country> </address> </desc></org></tutelle></tutelles></hal:affiliation><country>France</country></affiliation></author></analytic><idno type="DOI">10.1016/j.jag.2014.04.005</idno><series><title level="j">International Journal of Applied Earth Observation and Geoinformation</title><idno type="ISSN">0303-2434</idno><imprint><date type="datePub">2014</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="mix" xml:lang="fr"><term>FORET</term><term>GESTION DURABLE</term><term>GUYANE FRANCAISE</term><term>INDICE DE VEGETATION</term><term>LASER</term><term>LIDAR</term><term>SYSTEME D'INFORMATION GEOGRAPHIQUE</term><term>TRES HAUTE RESOLUTION SPATIALE</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">The Shuttle Radar Topography Mission (SRTM) has produced the most accurate nearly global elevation dataset to date. Over vegetated areas, the measured SRTM elevations are the result of a complex interaction between radar waves and tree crowns. In this study, waveforms acquired by the Geoscience Laser Altimeter System (GLAS) were combined with SRTM elevations to discriminate the five forest landscape types (LTs) in French Guiana. Two differences were calculated: (1) penetration depth, defined as the GLAS highest elevations minus the SRTM elevations, and (2) the GLAS centroid elevations minus the SRTM elevations. The results show that these differences were similar for the five LTs, and they increased as a function of the GLAS canopy height and of the SRTM roughness index. Next, a Random Forest (RF) classifier was used to analyze the coupling potential of GLAS and SRTM in the discrimination of forest landscape types in French Guiana. The parameters used in the RF classification were the GLAS canopy height, the SRTM roughness index, the difference between the GLAS highest elevations and the SRTM elevations and the difference between the GLAS centroid elevations and the SRTM elevations. Discrimination of the five forest landscape types in French Guiana was possible, with an overall classification accuracy of 81.3% and a kappa coefficient of 0.75. All forest LTs were well classified with an accuracy varying from 78.4% to 97.5%. Finally, differences of near coincident GLAS waveforms, one from the wet season and one from the dry season, were analyzed. The results showed that the open forest LT (LT12), in some locations, contains trees that lose leaves during the dry season. These trees allow LT12 to be easily discriminated from the other LTs that retain their leaves using the following three criteria: (1) difference between the GLAS centroid elevations and the SRTM elevations, (2) ratio of top energy in the wet season to top energy in the dry season, or (3) ratio of ground energy in the wet season to ground energy in the dry season.</div></front></TEI><affiliations><list><country><li>France</li></country></list><tree><country name="France"><noRegion><name sortKey="Fayad, I" sort="Fayad, I" uniqKey="Fayad I" first="I." last="Fayad">I. Fayad</name></noRegion><name sortKey="Baghdadi, N" sort="Baghdadi, N" uniqKey="Baghdadi N" first="N." last="Baghdadi">N. Baghdadi</name><name sortKey="Bailly, J S" sort="Bailly, J S" uniqKey="Bailly J" first="J. S." last="Bailly">J. S. Bailly</name><name sortKey="Barbier, N" sort="Barbier, N" uniqKey="Barbier N" first="N." last="Barbier">N. Barbier</name><name sortKey="El Hajj, M" sort="El Hajj, M" uniqKey="El Hajj M" first="M." last="El Hajj">M. El Hajj</name><name sortKey="Fabre, F" sort="Fabre, F" uniqKey="Fabre F" first="F." last="Fabre">F. Fabre</name><name sortKey="Gond, V" sort="Gond, V" uniqKey="Gond V" first="V." last="Gond">V. Gond</name></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
EXPLOR_STEP=$WICRI_ROOT/Wicri/Agronomie/explor/SisAgriV1/Data/France/Analysis
HfdSelect -h $EXPLOR_STEP/biblio.hfd -nk 000023 | SxmlIndent | more
Ou
HfdSelect -h $EXPLOR_AREA/Data/France/Analysis/biblio.hfd -nk 000023 | SxmlIndent | more
Pour mettre un lien sur cette page dans le réseau Wicri
{{Explor lien
|wiki= Wicri/Agronomie
|area= SisAgriV1
|flux= France
|étape= Analysis
|type= RBID
|clé= Hal:hal-01059051
|texte= Coupling potential of ICESat/GLAS and SRTM for the discrimination of forest landscape types in French Guiana
}}
| This area was generated with Dilib version V0.6.28. |  |