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Regional study for mapping the natural resources prospect and problem zones using remote sensing and GIS / R.K. Jaiswal in Geocarto international, vol 20 n° 3 (September - November 2005)  

Public [article]  inGeocarto international > vol 20 n° 3 (September - November 2005) . - pp 21 - 31 Titre : Regional study for mapping the natural resources prospect and problem zones using remote sensing and GIS Type de document : Article/Communication Auteurs : R.K. Jaiswal, Auteur ; J. Krishnamurthy, Auteur ; S. Mukherjee, Auteur Année de publication : 2005 Article en page(s) : pp 21 - 31 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] cartographie thématique [Termes IGN] eau souterraine [Termes IGN] image IRS-LISS [Termes IGN] incendie de forêt [Termes IGN] Inde [Termes IGN] plan d'exposition aux risques [Termes IGN] ressources naturelles [Termes IGN] risque naturel [Termes IGN] système d'information géographique Résumé : (Auteur) A systematic approach of understanding the terrain characteristics at the regional level and then narrowing down to the target areas for detailed mapping not only improves the quality of information but also saves considerably time, cost and manpower. For such activities, satellite-based remote sensing technology has become an efficient tool, due to its synoptic/multi-spectral/multi-temporaI coverage. In the present study, initially, a regional level natural resources assessment was carried out using coarse scale satellite data and then based on the results, a representative site was identified for detailed studies towards resources potential evaluation and to identify the areas undergoing calamities like forest fire. This multi stage study was carried out for a part of Madhya Pradesh, India. The regional set up of the study area was carried out on 1:250,000 scale using IRS LISS III standard FCC analog and digital data. A representative site named 'Gorna'sub-basin of the Son River, was selected for the detailed study at 1:50,000 scale, to mainly address the natural resources related problems of the region. The different thematic maps prepared were integrated in a GIS environment with suitable modeling for ground water prospect zone demarcation and forest fire risk zonation. Using the digital database of various themes, it could also be used appropriately for deriving other developmental plans. The result of the study demonstrate the utility of remote sensing technology for assessment of natural resources potentials at regional and local levels. Numéro de notice : A2005-445 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040508542352 Date de publication en ligne : 02/01/2008 En ligne : https://doi.org/10.1080/10106040508542352 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27581 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-05031	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Remote sensing of water quality for Burullus lake, Egypt / Kh. M. Dewidar in Geocarto international, vol 20 n° 3 (September - November 2005)  

Public [article]  inGeocarto international > vol 20 n° 3 (September - November 2005) . - pp 43 - 49 Titre : Remote sensing of water quality for Burullus lake, Egypt Type de document : Article/Communication Auteurs : Kh. M. Dewidar, Auteur ; A.A. Khedr, Auteur Année de publication : 2005 Article en page(s) : pp 43 - 49 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] analyse comparative [Termes IGN] appariement d'images [Termes IGN] carte thématique [Termes IGN] composition chimique [Termes IGN] données de terrain [Termes IGN] Egypte [Termes IGN] image Landsat-TM [Termes IGN] image multibande [Termes IGN] lac [Termes IGN] qualité des eaux [Termes IGN] radiance [Termes IGN] régression multiple Résumé : (Auteur) The objective of this study was to use Landsat Thematic Mapper TM data combined with surface measurements for mapping water quality parameters of Burullus Lake. Water samples were collected in the field at the same time of satellite image acquisition (April, 1997). TM bands 1, 2, 3, 4, 5, 7 and band ratios 1/4, 3/2, 2/1, 4/2, 4/3, 3/4, 7/5 and principal components of TM bands 1-4 (PC1 and PC2) were compared with in situ measurements and laboratory analysis of water samples. The water quality of interest included, Cl-, K+, Na+, soluble reactive phosphorus (SRP) dissolved inorganic nitrogen (DIN), dissolved oxygen (DO), pH, Salinity, Secchi disc and water depth. Also, the percentage of organic matter in bottom sediments and texture (sand, silt, clay) analyses are used in the evaluation processes. Correlation and regression models were developed between each of the water quality parameter measurements and the radiance of image data. Some water quality parameters were significantly correlated with TM radiance data. Subsequently, multiple linear regression models were used to prepare digital cartographic products depicting the water quality over the entire study area. Numéro de notice : A2005-446 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040508542354 Date de publication en ligne : 02/01/2008 En ligne : https://doi.org/10.1080/10106040508542354 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=27582 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
059-05031	RAB	Revue	Centre de documentation	En réserve L003	Disponible