NissirosV1, PascalFrancis, Corpus, bibRecord, 000004

An evaluation of the accuracy of the ASTER GDEM and the role of stack number: a case study of Nisiros Island, Greece

Identifieur interne : 000004 ( PascalFrancis/Corpus ); précédent : 000003; suivant : 000005

An evaluation of the accuracy of the ASTER GDEM and the role of stack number: a case study of Nisiros Island, Greece

Auteurs : George Ch. Miliaresis ; Charalampos V. E. Paraschou

Source :

Remote sensing letters : (Print) [ 2150-704X ] ; 2011.

RBID : Pascal:12-0380120

Descripteurs français

Pascal (Inist)
- Télédétection spatiale, Modèle numérique élévation, Radiométrie, Occupation sol, Précision, Ile Nisiros, ASTER, Grèce.

English descriptors

KwdEn :
- Greece, Space remote sensing, accuracy, digital elevation models, land cover, radiometry.

Abstract

A reference digital elevation model (RDEM) produced by the Hellenic Military Geographical Service (HMGS) (Athens, Greece) is used to assess the vertical accuracy of the ASTER (advanced spaceborne thermal emission and reflection radiometer) global digital elevation model (GDEM) for a small volcanic island, Nisiros, in south-east Greece. The overall vertical accuracy of the GDEM is within the root mean square error (RMSE) specified by the ASTER DEM Working Group. Despite this, ASTER GDEM is a product with variable vertical accuracy depending on the number of scenes (stack number (SN)) per grid point used for the computation of elevation. The exposure (SN) of a physiographic region to ASTER sensors seems to be elevation- and slope-dependent in this particular study area. The difference between the GDEM and RDEM may partly be explained by the fact that GDEM is a digital surface model and thus the variable landcover heights introduce additional error in accuracy estimates.

Notice en format standard (ISO 2709)

Pour connaître la documentation sur le format Inist Standard.

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A05				`@2 2`
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A08	`01`	`1`	`ENG`	`@1 An evaluation of the accuracy of the ASTER GDEM and the role of stack number: a case study of Nisiros Island, Greece`
A11	`01`	`1`		`@1 MILIARESIS (George CH.)`
A11	`02`	`1`		`@1 PARASCHOU (Charalampos V. E.)`
A14	`01`			`@1 Geology Department, University of Patras @2 Athens 104-42 @3 GRC @Z 1 aut.`
A14	`02`			`@1 Remote Sensing Laboratory, Department of Rural & Surveying Engineering, National Technical University of Athens @2 Zographos 15780 @3 GRC @Z 2 aut.`
A20				`@1 127-135`
A21				`@1 2011`
A23	`01`			`@0 ENG`
A43	`01`			`@1 INIST @2 28088 @5 354000191633110050`
A44				`@0 0000 @1 © 2012 INIST-CNRS. All rights reserved.`
A45				`@0 3/4 p.`
A47	`01`	`1`		`@0 12-0380120`
A60				`@1 P`
A61				`@0 A`
A64	`01`	`1`		`@0 Remote sensing letters : (Print)`
A66	`01`			`@0 GBR`
C01	`01`		`ENG`	@0 A reference digital elevation model (RDEM) produced by the Hellenic Military Geographical Service (HMGS) (Athens, Greece) is used to assess the vertical accuracy of the ASTER (advanced spaceborne thermal emission and reflection radiometer) global digital elevation model (GDEM) for a small volcanic island, Nisiros, in south-east Greece. The overall vertical accuracy of the GDEM is within the root mean square error (RMSE) specified by the ASTER DEM Working Group. Despite this, ASTER GDEM is a product with variable vertical accuracy depending on the number of scenes (stack number (SN)) per grid point used for the computation of elevation. The exposure (SN) of a physiographic region to ASTER sensors seems to be elevation- and slope-dependent in this particular study area. The difference between the GDEM and RDEM may partly be explained by the fact that GDEM is a digital surface model and thus the variable landcover heights introduce additional error in accuracy estimates.
C02	`01`	`2`		`@0 001E01M04`
C02	`02`	`2`		`@0 225B04`
C03	`01`	`2`	`FRE`	`@0 Télédétection spatiale @5 01`
C03	`01`	`2`	`ENG`	`@0 Space remote sensing @5 01`
C03	`01`	`2`	`SPA`	`@0 Teledetección espacial @5 01`
C03	`02`	`2`	`FRE`	`@0 Modèle numérique élévation @5 02`
C03	`02`	`2`	`ENG`	`@0 digital elevation models @5 02`
C03	`03`	`2`	`FRE`	`@0 Radiométrie @5 03`
C03	`03`	`2`	`ENG`	`@0 radiometry @5 03`
C03	`04`	`2`	`FRE`	`@0 Occupation sol @5 04`
C03	`04`	`2`	`ENG`	`@0 land cover @5 04`
C03	`05`	`2`	`FRE`	`@0 Précision @5 05`
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C03	`05`	`2`	`SPA`	`@0 Precisión @5 05`
C03	`06`	`2`	`FRE`	`@0 Ile Nisiros @4 INC @5 52`
C03	`07`	`2`	`FRE`	`@0 ASTER @4 INC @5 53`
C03	`08`	`2`	`FRE`	`@0 Grèce @2 NG @5 61`
C03	`08`	`2`	`ENG`	`@0 Greece @2 NG @5 61`
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C07	`02`	`2`	`FRE`	`@0 Europe @2 564`
C07	`02`	`2`	`ENG`	`@0 Europe @2 564`
C07	`02`	`2`	`SPA`	`@0 Europa @2 564`
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Format Inist (serveur)

NO :	PASCAL 12-0380120 INIST
ET :	An evaluation of the accuracy of the ASTER GDEM and the role of stack number: a case study of Nisiros Island, Greece
AU :	MILIARESIS (George CH.); PARASCHOU (Charalampos V. E.)
AF :	Geology Department, University of Patras/Athens 104-42/Grèce (1 aut.); Remote Sensing Laboratory, Department of Rural & Surveying Engineering, National Technical University of Athens/Zographos 15780/Grèce (2 aut.)
DT :	Publication en série; Niveau analytique
SO :	Remote sensing letters : (Print); ISSN 2150-704X; Royaume-Uni; Da. 2011; Vol. 2; No. 2; Pp. 127-135; Bibl. 3/4 p.
LA :	Anglais
EA :	A reference digital elevation model (RDEM) produced by the Hellenic Military Geographical Service (HMGS) (Athens, Greece) is used to assess the vertical accuracy of the ASTER (advanced spaceborne thermal emission and reflection radiometer) global digital elevation model (GDEM) for a small volcanic island, Nisiros, in south-east Greece. The overall vertical accuracy of the GDEM is within the root mean square error (RMSE) specified by the ASTER DEM Working Group. Despite this, ASTER GDEM is a product with variable vertical accuracy depending on the number of scenes (stack number (SN)) per grid point used for the computation of elevation. The exposure (SN) of a physiographic region to ASTER sensors seems to be elevation- and slope-dependent in this particular study area. The difference between the GDEM and RDEM may partly be explained by the fact that GDEM is a digital surface model and thus the variable landcover heights introduce additional error in accuracy estimates.
CC :	001E01M04; 225B04
FD :	Télédétection spatiale; Modèle numérique élévation; Radiométrie; Occupation sol; Précision; Ile Nisiros; ASTER; Grèce
FG :	Europe Sud; Europe
ED :	Space remote sensing; digital elevation models; radiometry; land cover; accuracy; Greece
EG :	Southern Europe; Europe
SD :	Teledetección espacial; Precisión; Grecia
LO :	INIST-28088.354000191633110050
ID :	12-0380120

Links to Exploration step

Pascal:12-0380120

Le document en format XML

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<front><div type="abstract" xml:lang="en">A reference digital elevation model (RDEM) produced by the Hellenic Military Geographical Service (HMGS) (Athens, Greece) is used to assess the vertical accuracy of the ASTER (advanced spaceborne thermal emission and reflection radiometer) global digital elevation model (GDEM) for a small volcanic island, Nisiros, in south-east Greece. The overall vertical accuracy of the GDEM is within the root mean square error (RMSE) specified by the ASTER DEM Working Group. Despite this, ASTER GDEM is a product with variable vertical accuracy depending on the number of scenes (stack number (SN)) per grid point used for the computation of elevation. The exposure (SN) of a physiographic region to ASTER sensors seems to be elevation- and slope-dependent in this particular study area. The difference between the GDEM and RDEM may partly be explained by the fact that GDEM is a digital surface model and thus the variable landcover heights introduce additional error in accuracy estimates.</div>
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<ET>An evaluation of the accuracy of the ASTER GDEM and the role of stack number: a case study of Nisiros Island, Greece</ET>
<AU>MILIARESIS (George CH.); PARASCHOU (Charalampos V. E.)</AU>
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An evaluation of the accuracy of the ASTER GDEM and the role of stack number: a case study of Nisiros Island, Greece

An evaluation of the accuracy of the ASTER GDEM and the role of stack number: a case study of Nisiros Island, Greece

Source :

Descripteurs français

English descriptors

Abstract

Notice en format standard (ISO 2709)

Format Inist (serveur)

Links to Exploration step

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri