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Spectral and radiometric requirements for the airborne thermal imaging spectrometer ARES / R. Richter in International Journal of Remote Sensing IJRS, vol 26 n° 15 (August 2005)
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Titre : Spectral and radiometric requirements for the airborne thermal imaging spectrometer ARES Type de document : Article/Communication Auteurs : R. Richter, Auteur ; A. Muller, Auteur ; et al., Auteur Année de publication : 2005 Article en page(s) : pp 3149 - 3162 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] Airborne Reflective/Emissive Spectrometer
[Termes IGN] capteur aérien
[Termes IGN] image thermique
[Termes IGN] longueur d'onde
[Termes IGN] radiance
[Termes IGN] simulation
[Termes IGN] spectromètreRésumé : (Auteur) ARES (Airborne Reflective/Emissive Spectrometer) is an airborne imaging spectrometer for remote sensing of land surfaces covering the wavelength regions 0.45-2.45 um and 8-13 um with 160 channels. The instrument is being built by Integrated Spectronics, financed by DLR and GFZ, and will be available to the scientific community from 2005 on. This contribution presents the design of the thermal spectrometer covering the 8-13 um region with 32 channels of 150 nm bandwidth while a separate paper treats the instrument specifications in the solar reflective region. The spectroradiometric design is based on scientific requirements derived from application scenarios comprising vegetation, soils of different compositions, and mineral exploration. The corresponding emissivity spectra are input for a simulation model that calculates at-sensor radiance spectra, resamples them with the channel-specific response functions, adds different amounts of sensor noise to the signal, and performs a retrieval to get the corresponding noisy surface emissivity spectra. The results of the simulation study indicate that a spectral wavelength accuracy of 3 nm and a sensor noise equivalent temperature of 0.05 - 0.1K are required for an accurate retrieval of emissivity spectra. Numéro de notice : A2005-324 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/01431160500127658 En ligne : https://doi.org/10.1080/01431160500127658 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27460
in International Journal of Remote Sensing IJRS > vol 26 n° 15 (August 2005) . - pp 3149 - 3162[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 080-05151 RAB Revue Centre de documentation En réserve L003 Exclu du prêt Emissivity maps to retrieve land-surface temperature from MSG/SEVIRI / L.F. Peres in IEEE Transactions on geoscience and remote sensing, vol 43 n° 8 (August 2005)
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Titre : Emissivity maps to retrieve land-surface temperature from MSG/SEVIRI Type de document : Article/Communication Auteurs : L.F. Peres, Auteur ; C.C. Dacamara, Auteur Année de publication : 2005 Article en page(s) : pp 1834 - 1844 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] analyse comparative
[Termes IGN] bande infrarouge
[Termes IGN] couvert végétal
[Termes IGN] emissivité
[Termes IGN] image MSG-SEVIRI
[Termes IGN] image Terra-MODIS
[Termes IGN] température au solRésumé : (Auteur) Retrieval of land-surface temperature (LST) using data from the METEOSAT Second Generation-1 (MSG) Spinning Enhanced Visible and Infrared Imager (SEVIRI) requires adequate estimates of land-surface emissivity (LSE). In this context, LSE maps for SEVIRI channels IR3.9, IR8.7, IR10.8, and IR12.0 were developed based on the vegetation cover method. A broadband LSE map (3-14 um) was also developed for estimating longwave surface fluxes that may prove to be useful in both energy balance and climate modeling studies. LSE is estimated from conventional static land-cover classifications, LSE spectral data for each land cover, and fractional vegetation cover (FVC) information. Both International Geosphere-Biosphere Program (IGBP) Data and Information System (DIS) and Moderate Resolution Imaging Spectrometer (MODIS) MOD12Q1 land-cover products were used to build the LSE maps. Data on LSE were obtained from the Johns Hopkins University and Jet Propulsion Laboratory spectral libraries included in the Advanced Spaceborne Thermal Emission and Reflection Radiometer spectral library, as well as from the MODIS University of California-Santa Barbara spectral library. FVC data for each pixel were derived based on the normalized differential vegetation index. Depending on land cover, the LSE errors for channels IR3.9 and IR8.7 spatially vary from +0.6% to +24% and +0.1% to +33%, respectively, whereas the broadband spectrum errors lie between +0.3% and +7%. In the case of channels IR10.8 and IR12.0,73% of the land surfaces within the MSG disk present relative errors less than +1.5%, and almost all (26%) of the remaining areas have relative errors of +2.0 %. Developed LSE maps provide a first estimate of the ranges of LSE in SEVIRI channels for each surface type, and obtained results may be used to assess the sensitivity of algorithms where an a priori knowledge of LSE is required. Numéro de notice : A2005-392 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2005.851172 En ligne : https://doi.org/10.1109/TGRS.2005.851172 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27528
in IEEE Transactions on geoscience and remote sensing > vol 43 n° 8 (August 2005) . - pp 1834 - 1844[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 065-05081 RAB Revue Centre de documentation En réserve L003 Disponible Prototyping a global algorithm for systematic fire-affected area mapping using MODIS time series data / D.P. Roy in Remote sensing of environment, vol 97 n° 2 (30/07/2005)
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Titre : Prototyping a global algorithm for systematic fire-affected area mapping using MODIS time series data Type de document : Article/Communication Auteurs : D.P. Roy, Auteur Année de publication : 2005 Article en page(s) : pp 137 - 162 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image
[Termes IGN] analyse spatio-temporelle
[Termes IGN] bruit (théorie du signal)
[Termes IGN] cartographie des risques
[Termes IGN] détection de changement
[Termes IGN] distribution du coefficient de réflexion bidirectionnelle BRDF
[Termes IGN] image Terra-MODIS
[Termes IGN] incendie de forêt
[Termes IGN] photo-identification
[Termes IGN] réflectance de surface
[Termes IGN] risque environnemental
[Termes IGN] risque naturelRésumé : (Auteur) The remote sensing of Earth surface changes is an active research field aimed at the development of methods and data products needed by scientists, resource managers, and policymakers. Fire is a major cause of surface change and occurs in most vegetation zones across the world. The identification and delineation of fire-affected areas, also known as burned areas or fire scars, may be considered a change detection problem. Remote sensing algorithms developed to map fire-affected areas are difficult to implement reliably over large areas because of variations in both the surface state and those imposed by the sensing system. The availability of robustly calibrated, atmospherically corrected, cloud-screened, geolocated data provided by the latest generation of moderate resolution remote sensing systems allows for major advances in satellite mapping of fire-affected area. This paper describes an algorithm developed to map fire-affected areas at a global scale using Moderate Resolution Imaging Spectroradiometer (MODIS) surface reflectance time series data. The algorithm is developed from the recently published Bi-Directional Reflectance Model-Based Expectation change detection approach and maps at 500 m the location and approximate day of burning. Improvements made to the algorithm for systematic global implementation are presented and the algorithm performance is demonstrated for southern African, Australian, South American, and Boreal fire regimes. The algorithm does not use training data but rather applies a wavelength independent threshold and spectral constraints defined by the noise characteristics of the reflectance data and knowledge of the spectral behavior of burned vegetation and spectrally confusing changes that are not associated with burning. Temporal constraints are applied capitalizing on the spectral persistence of fire-affected areas. Differences between mapped fire-affected areas and cumulative MODIS active fire detections are illustrated and discussed for each fire regime. The results reveal a coherent spatio-temporal mapping of fire-affected area and indicate that the algorithm shows potential for global application. Numéro de notice : A2005-319 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2005.04.007 En ligne : https://doi.org/10.1016/j.rse.2005.04.007 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27455
in Remote sensing of environment > vol 97 n° 2 (30/07/2005) . - pp 137 - 162[article]Ionospheric modeling: the key to GNSS ambiguity resolution / T. Richert in GPS world, vol 16 n° 6 (June 2005)
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Titre : Ionospheric modeling: the key to GNSS ambiguity resolution Type de document : Article/Communication Auteurs : T. Richert, Auteur ; Naser El-Sheimy, Auteur Année de publication : 2005 Article en page(s) : pp 35 - 40 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] ambiguïté entière
[Termes IGN] diffusion du rayonnement
[Termes IGN] Global Navigation Satellite System
[Termes IGN] modèle ionosphérique
[Termes IGN] précision des données
[Termes IGN] précision géométrique (imagerie)
[Termes IGN] propagation ionosphérique
[Termes IGN] résolution d'ambiguïtéRésumé : (Editeur) The GPS carrier-phase observable is more than 100 times more precise than the code-based pseudorange observable. Unfortunatly, it is also ambigous. If we want to use the carrier phase as a range measurement in positioning or navigation, we must account somehow for the unknown integer number of cycles or turns of phase in the initial measurement when a GPS receiver locks onto satellite's L1 or L2 signal carrier. Mathematicians, scientists and engineering have developed clever techniques for helping these integer ambiguities either in real time or in post-processing collected data. However, the success of these techniques in correctly determining the ambiguities depends on several factors including wether a point or relative positioning technique is employed, the length of the baseline in relative positioning, and how well a variety of errors afflicting the measurements can be mitigated. One source of such errors is the ionosphere. In this month's column, we examine how ionospheric modeling helps in the resolution of carrier-phase ambiguities and how the rate of success in correctly determining the ambiguities will be much improved when GPS observations are combined with those of the future Gallileo system. Numéro de notice : A2005-279 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27415
in GPS world > vol 16 n° 6 (June 2005) . - pp 35 - 40[article]Réservation
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Code-barres Cote Support Localisation Section Disponibilité 067-05061 SL Revue Centre de documentation Revues en salle Disponible Télédétection et photogrammétrie, chaînons dans la détermination du climat urbain à Strasbourg / Tania Landes in XYZ, n° 103 (juin - août 2005)
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Titre : Télédétection et photogrammétrie, chaînons dans la détermination du climat urbain à Strasbourg Type de document : Article/Communication Auteurs : Tania Landes, Auteur ; Pierre Grussenmeyer, Auteur ; G. Najjar, Auteur Année de publication : 2005 Article en page(s) : pp 27 - 34 Note générale : Bibliographie Langues : Français (fre) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] bilan radiatif
[Termes IGN] carte d'occupation du sol
[Termes IGN] classification
[Termes IGN] données météorologiques
[Termes IGN] image à très haute résolution
[Termes IGN] image DAIS
[Termes IGN] image Quickbird
[Termes IGN] milieu urbain
[Termes IGN] modèle numérique de surface
[Termes IGN] segmentation d'image
[Termes IGN] StrasbourgRésumé : (Auteur) La télédétection spatiale et la photogrammétrie tendent, depuis ces dernières années, à devenir complémentaires et proches tant du point de vue des technologies de capteurs, que du point de vue des traitements géométriques visant à la mesure dans l'image. L'emploi complémentaire des deux techniques se reflète dans des projets tels que le projet REClUS 3 (Rayonnement et bilan d'Energie en Climatologie Urbaine à Strasbourg) initié par le LSIIT. Ce projet a pour objectif de modéliser les bilans radiatifs et énergétiques sur la base de données micro-météorologiques, atmosphériques et d'imagerie observées et captées en zone urbaine de Strasbourg. La campagne de mesures sera évoquée avant d'aborder l'intérêt de techniques de photogrammétrie et de télédétection dans un tel projet. Nous développerons plus particulièrement les premiers résultats obtenus par l'utilisation de deux méthodes de classifications visant à fournir une cartographie d'occupation des sols à partir d'images à très hautes résolutions spatiale et spectrale. Numéro de notice : A2005-268 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27404
in XYZ > n° 103 (juin - août 2005) . - pp 27 - 34[article]Exemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 112-05021 RAB Revue Centre de documentation En réserve L003 Exclu du prêt L'utilisation du GPS pour l'imagerie de l'ionosphère / J. Artru in Géochronique, n° 94 (juin - août 2005)
PermalinkAssessing the potential of SeaWiFS and MODIS for estimating chlorophyll concentration in turbid productive waters using red and near-infrared bands / G. Dall'olmo in Remote sensing of environment, vol 96 n° 2 (30/05/2005)
PermalinkGround-penetrating radar measurement of crop and surface water content dynamics / G. Serbin in Remote sensing of environment, vol 96 n° 1 (15/05/2005)
PermalinkSeparating surface emissivity and temperature using two-channel spectral indices and emissivity composites and comparison with a vegetation fraction method / P. Dash in Remote sensing of environment, vol 96 n° 1 (15/05/2005)
PermalinkRadial basis function neural networks classification using very high spatial resolution satellite imagery: an application to the habitat area of Lake Kerkini (Greece) / Iphigenia Keramitsoglou in International Journal of Remote Sensing IJRS, vol 26 n° 9 (May 2005)
PermalinkMicrowave land emissivity calculations using AMSU measurements / Fatima Karbou in IEEE Transactions on geoscience and remote sensing, vol 43 n° 5 (May 2005)
PermalinkMIRAS end-to-end calibration: application to SMOS L1 processor / I. Corbella in IEEE Transactions on geoscience and remote sensing, vol 43 n° 5 (May 2005)
PermalinkMIRAS reference radiometer: a fully polarimetric noise injection radiometer / A. Colliander in IEEE Transactions on geoscience and remote sensing, vol 43 n° 5 (May 2005)
PermalinkNOAA operational hydrological products derived from the Advanced Microwave Sounding Unit / R.R. Ferraro in IEEE Transactions on geoscience and remote sensing, vol 43 n° 5 (May 2005)
PermalinkThe emissivity of foam-covered water surface at L-band: theoretical modelling and experimental results from the frog 2003 field experiment / A. Camps in IEEE Transactions on geoscience and remote sensing, vol 43 n° 5 (May 2005)
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