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Nighttime polar cloud detection with MODIS / Y. Liu in Remote sensing of environment, vol 92 n° 2 (15/08/2004)
[article]
Titre : Nighttime polar cloud detection with MODIS Type de document : Article/Communication Auteurs : Y. Liu, Auteur ; J.R. Key, Auteur ; et al., Auteur Année de publication : 2004 Article en page(s) : pp 181 - 194 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Antarctique
[Termes IGN] Arctique
[Termes IGN] climat froid
[Termes IGN] climat terrestre
[Termes IGN] détection
[Termes IGN] dioxyde de carbone
[Termes IGN] données lidar
[Termes IGN] image Aqua-MODIS
[Termes IGN] image radar
[Termes IGN] image Terra-MODIS
[Termes IGN] luminance lumineuse
[Termes IGN] modèle de transfert radiatif
[Termes IGN] nuage
[Termes IGN] seuillage d'image
[Termes IGN] vapeur d'eauRésumé : (Auteur) Cloud detection is the first step in studying the role of polar clouds in the global climate system with satellite data. In this paper, the cloud detection algorithm for the Moderate Resolution Imaging Spectrometer (MODIS) is evaluated with model simulations and satellite data collocated with radar/lidar observations at three Arctic and Antarctic stations. Results show that the current MODIS cloud mask algorithm performs well in polar regions during the day but does not detect more than 40% of the cloud cover over the validation sights at night. Two new cloud tests utilizing the 7.2 um water vapor and 14.2 um carbon dioxide bands, one new clear-sky test using the 7.2 um band, and changes to the thresholds of several other tests are described. With the new cloud detection procedure, the misidentification of cloud as clear decreases from 44.2% to 16.3% at the two Arctic stations, and from 19.8% to 2.7% at the Antarctic station. Numéro de notice : A2004-333 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2004.06.004 En ligne : https://doi.org/10.1016/j.rse.2004.06.004 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=26860
in Remote sensing of environment > vol 92 n° 2 (15/08/2004) . - pp 181 - 194[article]Simultane Schätzung von Topographie und Dynamik polarer Gletscher aus multi-temporalen SAR Interferogrammen / F.J. Meyer (2004)
Titre : Simultane Schätzung von Topographie und Dynamik polarer Gletscher aus multi-temporalen SAR Interferogrammen Titre original : [Simultaneous estimation of topography and motion of polar glaciers and ice sheets from multi-temporal SAR interferograms] Type de document : Thèse/HDR Auteurs : F.J. Meyer, Auteur Editeur : Munich : Bayerische Akademie der Wissenschaften Année de publication : 2004 Collection : DGK - C Sous-collection : Dissertationen num. 579 Importance : 113 p. Format : 21 x 30 cm ISBN/ISSN/EAN : 978-3-7696-5018-1 Note générale : Bibliographie Langues : Allemand (ger) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] Arctique
[Termes IGN] calotte glaciaire
[Termes IGN] glacier
[Termes IGN] image multitemporelle
[Termes IGN] image radar moirée
[Termes IGN] interferométrie différentielle
[Termes IGN] interféromètrie par radar à antenne synthétique
[Termes IGN] position directeRésumé : (Auteur) This thesis presents a new technique to simultaneously estimate topography and motion of polar glaciers and ice sheets from multi-temporal SAR interferograms. In this approach the unknown parameters, i.e. topography and surface displacement, are estimated from a redundant number of observations. The resulting redundancy is systematically used to attach realistic accuracy and robustness measures to all estimated unknowns and to reveal possible gross errors in the observations or errors in the model. Additionally, the redundancy facilitates replacing very restrictive model components by more flexible models with a higher amount of free parameters. This leads to a better description of the real behavior of the object.
The approach combines several SAR interferograms into a least-squares adjustment based on the Gauss-Markov model. In order to connect the multi-temporal data sets, a spatio-temporal model is proposed that describes the properties of the surface and its temporal evolution. The parameterization of the model can be adapted considering the properties of the object under investigation. Tests with simulated data show that, with this technique, both topography and motion of polar ice caps can be estimated with an accuracy of a few meters or a few centimeters per day, depending on the configuration of the adjustment. The quality of the estimated parameters depends on the accuracy of the phase observations, the observation geometry, and the number of involved data sets. Analyses of the robustness of the approach additionally indicate a high robustness of the estimated unknowns with respect to gross errors in the observations. The influence of the atmospheric path delay on the unknowns is analyzed and quantified for various observation geometries and different atmospheric conditions. It is shown that errors in the assumed deformation model significantly falsify the estimated parameters. Thus, the configuration of the spatio-temporal model must be chosen carefully. In addition to the estimation of surface topography and motion, the method and its inherent analysis tools allow to determine the observation geometry that is necessary to reach a pre-defined accuracy level in advance. Therefore, the method is a very useful tool for project planing. By means of a case study aimed at the observation of a huge ice dome in the Russian arctic the feasibility of the approach in real-life situations is demonstrated.Numéro de notice : 13257 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Thèse étrangère Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=54941 Réservation
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Code-barres Cote Support Localisation Section Disponibilité 13257-01 35.45 Livre Centre de documentation Télédétection Disponible 13257-02 35.45 Livre Centre de documentation Télédétection Disponible Metric relations in INSAR topographic modelling / G. Brandstätter (31/05/1999)
contenu dans Remote sensing in the 21st century : economic and environmental applications / José Luis Casanova (2000)
Titre : Metric relations in INSAR topographic modelling Type de document : Article/Communication Auteurs : G. Brandstätter, Auteur ; A.I. Sharov, Auteur Editeur : Lisse et Amsterdam : Balkema (August Aimé) Année de publication : 31/05/1999 Conférence : EARSeL 1999, 19th symposium, Remote sensing in the 21st century : economic and environmental applications 31/05/1999 02/06/1999 Valladolid Espagne Importance : pp 523 - 531 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image radar et applications
[Termes IGN] Arctique
[Termes IGN] calotte glaciaire
[Termes IGN] image radar moirée
[Termes IGN] interferométrie différentielle
[Termes IGN] interféromètrie par radar à antenne synthétiqueRésumé : (Auteur) Scalar formulation of metric relations having relevance to satellite topographic interferometry served as a basis for several original concepts, which provided an important aid for significant methodological improvements and simplification to the main operations of the INSAR data processing, including flat terrain phase correction, interferometric phase unwrapping and differential analysis. Topographic heights and slopes of several of the largest ice caps in Franz Josef Land, Russian High Arctic were derived from the repeat-pass INSAR data acquired in September and October 1995 without previous phase unwrapping yet without compromising on accuracy. Numéro de notice : C1999-050 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Communication Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=65816 The history of cartography, Volume 2 Book 3. Cartography in the traditional African, American, Arctic, Australian, & Pacific Societes / David Woodward (1998)
Titre de série : The history of cartography, Volume 2 Book 3 Titre : Cartography in the traditional African, American, Arctic, Australian, & Pacific Societes Type de document : Monographie Auteurs : David Woodward, Éditeur scientifique ; G. Malcom Lewis, Éditeur scientifique Editeur : Chicago : University of Chicago Press Année de publication : 1998 Importance : 500 p. Format : 22 x 29 cm ISBN/ISSN/EAN : 978-0-226-90728-4 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Cartographie ancienne
[Termes IGN] Afrique (géographie politique)
[Termes IGN] Amérique (géographie politique)
[Termes IGN] Arctique
[Termes IGN] Australie
[Termes IGN] cartographie ancienne
[Termes IGN] histoire de la cartographieNuméro de notice : 68094D Affiliation des auteurs : non IGN Thématique : GEOMATIQUE Nature : Monographie Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=61859 Titre suivantVoir aussiRéservation
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Code-barres Cote Support Localisation Section Disponibilité 68094-01D BOLI Livre Centre de documentation Grands livres Disponible The prospects for small format photography in arctic animal surveys / P.J. Poole in Photogrammetric record, vol 13 n° 74 (October 1989 - March 1990)
[article]
Titre : The prospects for small format photography in arctic animal surveys Type de document : Article/Communication Auteurs : P.J. Poole, Auteur Année de publication : 1989 Article en page(s) : pp 229 - 236 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] aire protégée
[Termes IGN] Arctique
[Termes IGN] Canada
[Termes IGN] chambre à petit format
[Termes IGN] faune
[Termes IGN] habitat animal
[Termes IGN] photographie aérienne
[Termes IGN] population animaleNuméro de notice : A1989-300 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.1111/j.1477-9730.1989.tb00673.x En ligne : https://doi.org/10.1111/j.1477-9730.1989.tb00673.x Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25259
in Photogrammetric record > vol 13 n° 74 (October 1989 - March 1990) . - pp 229 - 236[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 106-89021 RAB Revue Centre de documentation En réserve L003 Disponible 106-89022 RAB Revue Centre de documentation En réserve L003 Disponible Classification of merged AVHRR and SMMR arctic data with neural networks / J. Key in Photogrammetric Engineering & Remote Sensing, PERS, vol 55 n° 9 (september 1989)PermalinkMorphology of a multi-year ice ridge in the high arctic / D.N. Connors in Photogrammetric Engineering & Remote Sensing, PERS, vol 55 n° 8 (august 1989)PermalinkSea-ice kinematics as determined by remotely-sensed ice drift : seasonal space and time scales / J.K. Lewis in Photogrammetric Engineering & Remote Sensing, PERS, vol 55 n° 8 (august 1989)PermalinkAccuracy assessment of a Landsat-assisted vegetation map of the coastal plain of the Arctic national wildlife refuge / N.A. Felix in Photogrammetric Engineering & Remote Sensing, PERS, vol 55 n° 4 (april 1989)PermalinkSurface temperatures and sea ice typing for northern Baffin bay / K. Steffen in International Journal of Remote Sensing IJRS, vol 9 n° 3 (May 1988)PermalinkA model for retrieving total sea ice concentration from a spaceborne dual-polarized passive microwave instrument operating near 90 ghz / E. Svendsen in International Journal of Remote Sensing IJRS, vol 8 n° 10 (October 1987)PermalinkDie deutschen geodätischen Arbeiten im Rahmen der Internationalen Glaziologischen Grönland-Expedition (EGIG) 1959-1974 mit Beiträgen von Franz-Josef Heimes, Walther Hofmann, Achim Karsten, Klemens Nottarp und Manfred Stober / F.J. Heimes (1986)PermalinkMIZEX [Marginal Ice Zone Experiment] 1984 Varan-S data set / N. Lannelongue (1985)PermalinkAuto-Carto 5 fifth international symposium on computer-assisted cartography and International Society for Photogrammetry and Remote Sensing Commission 4 Environmental assessment and resource management, proceedings, Volume 2. ISPRS Commission 4 symposium 1982 proceedings / Jack Foreman (1982)PermalinkThe importance of satisfactory positioning, diving and mapping systems, suitable for exploration and transportation in ice-covered sea areas / Ragnar Thoren (1982)Permalink