Descripteur
Termes IGN > sciences naturelles > physique > optique > optique physique
optique physiqueSynonyme(s)optique ondulatoire |
Documents disponibles dans cette catégorie (3086)
![](./images/expand_all.gif)
![](./images/collapse_all.gif)
Etendre la recherche sur niveau(x) vers le bas
Crop yield assessment from remote sensing / P.C. Doraiswamy in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 6 (June 2003)
![]()
[article]
Titre : Crop yield assessment from remote sensing Type de document : Article/Communication Auteurs : P.C. Doraiswamy, Auteur ; S. Moulin, Auteur ; P.W. Cook, Auteur ; A. Stern, Auteur Année de publication : 2003 Article en page(s) : pp 665 - 674 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] blé (céréale)
[Termes IGN] Dakota du Nord (Etats-Unis)
[Termes IGN] image Landsat
[Termes IGN] image NOAA-AVHRR
[Termes IGN] intégrité des données
[Termes IGN] modèle de transfert radiatif
[Termes IGN] rendement agricole
[Termes IGN] système d'information géographique
[Termes IGN] zone semi-arideRésumé : (Auteur) Monitoring crop condition and production estimates at the state and county level is of great interest to the U.S. Department of Agriculture. The National Agricultural Statistical Service (NASS) of the U.S. Department of Agriculture conducts field interviews with sampled farm operators and obtains crop cuttings to make crop yield estimates at regional and state levels. NASS needs supplemental spatial data that provides timely information on crop condition and potential yields. In this research, the crop model EPIC (Erosion Productivity Impact Calculator) was adapted for simulations at regional scales. Satellite remotely sensed data provide a real-time assessment of the magnitude and variation of crop condition parameters, and this study investigates the use of these parameters as an input to a crop growth model. This investigation was conducted in the semi-arid region of North Dakota in the southeastern part of the state. The primary objective was to evaluate a method of integrating parameters retrieved from satellite imagery in a crop growth model to simulate spring wheat yields at the sub-county and county levels. The input parameters derived from remotely sensed data provided spatial integrity, as well as a real-time calibration of model simulated parameters during the season, to ensure that the modeled and observed conditions agree. A radiative transfer model, SAIL (Scattered by Arbitrary Inclined Leaves), provided the link between the satellite data and crop model. The model parameters were simulated in a geographic information system grid, which was the platform for aggregating yields at local and regional scales. A model calibration was performed to initialize the model parameters. This calibration was performed using Landsat data over three southeast counties in North Dakota. The model was then used to simulate crop yields for the state of North Dakota with inputs derived from NOAA-AVHRR data. The calibration and the state level simulations are compared with spring wheat yields reported by NASS objective yield surveys. Numéro de notice : A2003-114 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.69.6.665 En ligne : https://doi.org/10.14358/PERS.69.6.665 Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22410
in Photogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 6 (June 2003) . - pp 665 - 674[article]Remote sensing for crop management / P.J. Pinter in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 6 (June 2003)
![]()
[article]
Titre : Remote sensing for crop management Type de document : Article/Communication Auteurs : P.J. Pinter, Auteur ; J.L. Hatfield, Auteur ; J.S. Schepers, Auteur ; et al., Auteur Année de publication : 2003 Article en page(s) : pp 647 - 664 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] cultures
[Termes IGN] Etats-Unis
[Termes IGN] exitance énergétique
[Termes IGN] indice de végétation
[Termes IGN] pesticide
[Termes IGN] réflectance du sol
[Termes IGN] réflectance végétale
[Termes IGN] rendement agricole
[Termes IGN] stress hydrique
[Termes IGN] surveillance de la végétationRésumé : (Auteur) Scientists with the Agricultural Research Service (ARS) and various government agencies and private institutions have provided a great deal of fundamental information relating spectral reflectance and thermal emittance properties of soils and crops to their agronomic and biophysical characteristics. This knowledge has facilitated the development and use of various remote sensing methods for non-destructive monitoring of plant growth and development and for the detection of many environmental stresses which limit plant productivity. Coupled with rapid advances in computing and positionlocating technologies, remote sensing from ground-, air-, and space-based platforms is now capable of providing detailed spatial and temporal information on plant response to their local environment that is needed for site specific agricultural management approaches. This manuscript, which emphasizes contributions by ARS researchers, reviews the biophysical basis of remote sensing ; examines approaches that have been developed, refined, and tested for management of water, nutrients, and pests in agricultural crops ; and assesses the role of remote sensing in yield prediction. It concludes with a discussion of challenges facing remote sensing in the future. Numéro de notice : A2003-113 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article DOI : 10.14358/PERS.69.6.647 En ligne : https://doi.org/10.14358/PERS.69.6.647 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22409
in Photogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 6 (June 2003) . - pp 647 - 664[article]Remote sensing techniques to assess water quality / J.C. Ritchie in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 6 (June 2003)
![]()
[article]
Titre : Remote sensing techniques to assess water quality Type de document : Article/Communication Auteurs : J.C. Ritchie, Auteur ; P.V. Zimba, Auteur ; James H. Everitt, Auteur Année de publication : 2003 Article en page(s) : pp 695 - 704 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] algue
[Termes IGN] chlorophylle
[Termes IGN] image Landsat-TM
[Termes IGN] image optique
[Termes IGN] plante aquatique d'eau salée
[Termes IGN] qualité des eaux
[Termes IGN] rétrodiffusion
[Termes IGN] surveillance écologique
[Termes IGN] température de surface de la mer
[Termes IGN] turbidité des eauxRésumé : (Auteur) Remote sensing techniques can be used to monitor water quality parameters (i.e., suspended sediments (turbidity), chlorophyll, and temperature). Optical and thermal sensors on boats, aircraft, and satellites provide both spatial and temporal information needed to monitor changes in water quality parameters for developing management practices to improve water quality. Recent and planned launches of satellites with improved spectral and spatial resolution sensors should lead to greater use of remote sensing techniques to assess and monitor water quality parameters. Integration of remotely sensed data, GPS, and GIS technologies provides a valuable tool for monitoring and assessing waterways. Remotely sensed data can be used to create a permanent geographically located database to provide a baseline for future comparisons. The integrated use of remotely sensed data, GPS, and GIS will enable consultants and natural resource managers to develop management plans for a variety of natural resource management applications. Numéro de notice : A2003-116 Affiliation des auteurs : non IGN Thématique : FORET/IMAGERIE Nature : Article DOI : 10.14358/PERS.69.6.695 En ligne : https://doi.org/10.14358/PERS.69.6.695 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22412
in Photogrammetric Engineering & Remote Sensing, PERS > vol 69 n° 6 (June 2003) . - pp 695 - 704[article]A CCD camera-based hyperspectral imaging system for stationary and airborne applications / C. Yang in Geocarto international, vol 18 n° 2 (June - August 2003)
![]()
[article]
Titre : A CCD camera-based hyperspectral imaging system for stationary and airborne applications Type de document : Article/Communication Auteurs : C. Yang, Auteur ; James H. Everitt, Auteur ; M.R. Davis, Auteur Année de publication : 2003 Article en page(s) : pp 71 - 80 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Acquisition d'image(s) et de donnée(s)
[Termes IGN] bande spectrale
[Termes IGN] capteur imageur
[Termes IGN] chambre DTC
[Termes IGN] correction géométrique
[Termes IGN] distorsion d'image
[Termes IGN] image hyperspectrale
[Termes IGN] photographie aérienne
[Termes IGN] photographie terrestre
[Termes IGN] spectrographeRésumé : (Auteur) This paper describes a CCD (charge coupled device) camerabased hyperspectral imaging system designed for both stationary and airborne remote sensing applications. The system consists of a high performance digital CCD camera, an imaging spectrograph, an optional focal plane scanner, and a PC computer equipped with a frame grabbing board and camera utility software. The CCD camera provides 1280(h) x 1024(v) pixel resolution and true 12bit dynamic range. The imaging spectrograph is attached to the camera via an adapter to disperse radiation into a range of spectral bands. The effective spectral range resulting from this integration is from 457.2 nm to 921.7 nm. The optional focal plane scanner can be attached to the front of the spectrograph via another adapter for stationary image acquisition. The camera and the frame grabbing board are connected via a double coaxial cable, and the utility software allows for complete camera control and image acquisition. The imaging system captures one line image for all the bands at a time and an aircraft or the focal plane scanner serves as a mobile platform to carrv out push broom scanning in the alongtrack direction. The horizontal and vertical binning capability of the camera makes it possible to obtain images with various spatial (160, 320, 640 and 1280 pixels in image width) and spectral (32, 64, 128, 256, 512 and 1024 bands) resolutions. Formulas are presented to show the relationships among binning factors, spatial resolutions, and flight height and speed. Images with all 24 possible combinations of binning factors were collected in a laboratory setting. Airborne images with 128 bands and a width of 640 pixels were also obtained from agricultural fields, rangelands and waterways. Procedures were developed to correct geometric distortions of the airborne hyperspectral imagery. Preliminary image acquisition testing trials indicate that this CCD camerabased hyperspectral imaging system has potential for agricultural and natural resources applications. Numéro de notice : A2003-224 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1080/10106040308542274 Date de publication en ligne : 02/01/2008 En ligne : https://doi.org/10.1080/10106040308542274 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22519
in Geocarto international > vol 18 n° 2 (June - August 2003) . - pp 71 - 80[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 059-03021 RAB Revue Centre de documentation En réserve L003 Disponible Comparative alteration mineral mapping using visible to shortwave infrared (0.4-2.4 um) Hyperion, ALI, and ASTER imagery / B. Hubbard in IEEE Transactions on geoscience and remote sensing, vol 41 n° 6 (June 2003)
![]()
[article]
Titre : Comparative alteration mineral mapping using visible to shortwave infrared (0.4-2.4 um) Hyperion, ALI, and ASTER imagery Type de document : Article/Communication Auteurs : B. Hubbard, Auteur ; J.K. Crowley, Auteur ; D.R. Zimbelman, Auteur Année de publication : 2003 Article en page(s) : pp 1401 - 1410 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection
[Termes IGN] bande infrarouge
[Termes IGN] bande visible
[Termes IGN] cartographie thématique
[Termes IGN] Cordillère des Andes
[Termes IGN] géologie locale
[Termes IGN] image EO1-ALI
[Termes IGN] image EO1-Hyperion
[Termes IGN] image hyperspectrale
[Termes IGN] image infrarouge
[Termes IGN] image multibande
[Termes IGN] image Terra-ASTER
[Termes IGN] rayonnement proche infrarouge
[Termes IGN] roche
[Termes IGN] volcanologieRésumé : (Auteur) Advanced Land Imager (ALI), Advanced SpaceThermal Emission and Reflection Radiometer (ASTER), and Hyperion imaging spectrometer data covering an area in the Central Andes between Volcan Socompa and Salar de Llullaillaco were used to map hydrothermally altered rocks associated with young volcanic systems. Six ALI channels in the visible and near-infrared wavelength range (0.4-1.0 um) were useful discriminating between ferric-iron alteration minerals based on the spectral shapes of electronic absorption features seen in continuum-removed spectra. Six ASTER channels in the short wavelength infrared (1.0-2.5 um) enabled distinctions between clay and sulfate mineral types based on the positions of band related to Al-OH vibrational absorption features. Hypeimagery embedded in the broader image coverage of ALI and ASTER provided essential leverage for calibrating and improving the mapping accuracy of the multispectral data. This capability is especially valuable in remote areas of the earth where available geologic and other ground truth information is limited. Numéro de notice : A2003-218 Affiliation des auteurs : non IGN Thématique : IMAGERIE Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1109/TGRS.2003.812906 En ligne : https://doi.org/10.1109/TGRS.2003.812906 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=22514
in IEEE Transactions on geoscience and remote sensing > vol 41 n° 6 (June 2003) . - pp 1401 - 1410[article]Réservation
Réserver ce documentExemplaires(1)
Code-barres Cote Support Localisation Section Disponibilité 065-03061 RAB Revue Centre de documentation En réserve L003 Disponible Comparison of Earth observing-1 ALI and Landsat ETM+ for crop identification and yield prediction in Mexico / D.B. Lobell in IEEE Transactions on geoscience and remote sensing, vol 41 n° 6 (June 2003)
PermalinkData continuity of Earth observing 1 (EO-1) advanced land imager (ALI) and Landsat TM and ETM+ / R. Byant in IEEE Transactions on geoscience and remote sensing, vol 41 n° 6 (June 2003)
PermalinkDetection of building outlines based on the fusion of SAR and optical features / Florence Tupin in ISPRS Journal of photogrammetry and remote sensing, vol 58 n° 1-2 (June - December 2003)
PermalinkFusion of spectral and shape features for identification of urban surface cover types using reflective and thermal hyperspectral data / Karl Segl in ISPRS Journal of photogrammetry and remote sensing, vol 58 n° 1-2 (June - December 2003)
PermalinkPotential and limits of InSAR data for building reconstruction in built-up area / Uwe Stilla in ISPRS Journal of photogrammetry and remote sensing, vol 58 n° 1-2 (June - December 2003)
PermalinkComparison of gray-level reduction and different texture spectrum encoding methods for land-use classification using a panchromatic Ikonos image / B. Xu in Photogrammetric Engineering & Remote Sensing, PERS, vol 69 n° 5 (May 2003)
PermalinkHyperspectral texture recognition using a multiscale opponent representation / M. Shi in IEEE Transactions on geoscience and remote sensing, vol 41 n° 5 (May 2003)
PermalinkIonospheric effects on SAR imaging: a numerical study / J. Liu in IEEE Transactions on geoscience and remote sensing, vol 41 n° 5 (May 2003)
PermalinkMonitoring the ionosphere with GPS: space weather / Anthea Coster in GPS world, vol 14 n° 5 (May 2003)
PermalinkThe effect of modified Markov random fields on the local minima occurrence in microwave imaging / G. Ferraiuolo in IEEE Transactions on geoscience and remote sensing, vol 41 n° 5 (May 2003)
Permalink