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Separating 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)  

Public [article]  inRemote sensing of environment > vol 96 n° 1 (15/05/2005) . - pp 1 - 17 Titre : Separating surface emissivity and temperature using two-channel spectral indices and emissivity composites and comparison with a vegetation fraction method Type de document : Article/Communication Auteurs : P. Dash, Auteur ; F. Göttsche, Auteur ; et al., Auteur Année de publication : 2005 Article en page(s) : pp 1 - 17 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] analyse comparative [Termes IGN] correction atmosphérique [Termes IGN] données de terrain [Termes IGN] données météorologiques [Termes IGN] éclairement énergétique [Termes IGN] emissivité [Termes IGN] erreur [Termes IGN] image NOAA-AVHRR [Termes IGN] Normalized Difference Vegetation Index [Termes IGN] radiance [Termes IGN] rayonnement infrarouge thermique [Termes IGN] saison [Termes IGN] simulation de surface [Termes IGN] température au sol [Termes IGN] thermal infrared multispectral scanner Résumé : (Auteur) The temperature-independent thermal infrared spectral indices (TISI) method is employed for the separation of land surface temperature (LST) and emissivity from surface radiances (atmospherically corrected satellite data). The daytime reflected solar irradiance and the surface emission at ~3.8 um have comparable magnitudes. Using surface radiances and a combination of day-night 2-channel TISI ratios, the ~3.8 um reflectivity is derived. For implementing the TISI method, coefficients for NOAA 9-16 AVHRR channels are obtained. A numerical analysis with simulated surface radiances shows that for most surface types (showing nearly Lambertian behavior) the achievable accuracy is ~0.005 for emissivity (AVHRR channel-5) and ~1.5 K for LST. Data from the European Centre for Medium-Range Weather Forecasts (ECMWF) is used for calculation of atmospheric attenuation. Comparisons are made over a part of central Europe on two différent dates (seasons). Clouds pose a major problem to surface observations; hence, monthly emissivity composites are derived. Additionally, using TISI-based monthly composites of emissivities, a normalized difference vegetation index (NDVI)-based method is tuned to the particular study area and the results are intercompared. Once the coefficients are known, the NDVI method is easily implemented but holds well only for vegetated areas. The error of the NDVI-based emissivities (with respect to the TISI results) ranges between -0.038 and 0.032, but for vegetated areas the peak of the error-histogram is at ~0.002. The algorithm for retrieving emissivity via TISI was validated with synthetic data. Due to the different spatial scales of satellite and surface measurements and the lack of homogeneous areas, which are representative for low-resolution pixels and ground measurements, ground-validation is a daunting task. However, for operational products ground-truth validation is necessary. Therefore, also an approach to identify suitable validation sites for meteorological satellite products in Europe is described. Numéro de notice : A2005-209 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1016/j.rse.2004.12.023 En ligne : https://doi.org/10.1016/j.rse.2004.12.023 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27346 [article]

Remote detection of canopy water stress in coniferous forests using the NS001 Thematic Mapper simulator and the thermal infrared multispectral scanner / L.L. Pierce in Photogrammetric Engineering & Remote Sensing, PERS, vol 56 n° 5 (may 1990)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 56 n° 5 (may 1990) . - pp 579 - 586 Titre : Remote detection of canopy water stress in coniferous forests using the NS001 Thematic Mapper simulator and the thermal infrared multispectral scanner Type de document : Article/Communication Auteurs : L.L. Pierce, Auteur ; S.W. Running, Auteur ; G.A. Riggs, Auteur Année de publication : 1990 Article en page(s) : pp 579 - 586 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] couvert forestier [Termes IGN] forêt tempérée [Termes IGN] Munich [Termes IGN] Pinophyta [Termes IGN] radiance [Termes IGN] rayonnement infrarouge thermique [Termes IGN] simulation [Termes IGN] stress hydrique [Termes IGN] Thematic Mapper simulator [Termes IGN] thermal infrared multispectral scanner Numéro de notice : A1990-158 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : sans En ligne : https://www.asprs.org/wp-content/uploads/pers/1990journal/may/1990_may_579-586.p [...] Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25574 [article]

Techniques for noise removal and registration of TIMS [thermal infrared multispectral scanner] data / S. Hummer-Miller in Photogrammetric Engineering & Remote Sensing, PERS, vol 56 n° 1 (january 1990)  

Public [article]  inPhotogrammetric Engineering & Remote Sensing, PERS > vol 56 n° 1 (january 1990) . - pp 49 - 53 Titre : Techniques for noise removal and registration of TIMS [thermal infrared multispectral scanner] data Type de document : Article/Communication Auteurs : S. Hummer-Miller, Auteur Année de publication : 1990 Article en page(s) : pp 49 - 53 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Traitement d'image [Termes IGN] filtrage du bruit [Termes IGN] image thermique [Termes IGN] rayonnement infrarouge thermique [Termes IGN] superposition d'images [Termes IGN] thermal infrared multispectral scanner [Termes IGN] traitement d'image Numéro de notice : A1990-012 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : sans En ligne : https://www.asprs.org/wp-content/uploads/pers/1990journal/jan/1990_jan_49-53.pdf Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=25436 [article]