Systems for data processing, anaylsis and representation

Allam, Mosaad; Plunkett, Gordon

Bibliographic data

Monograph

Persistent identifier:: 1067490280

Title:: Systems for data processing, anaylsis and representation

Sub title:: ISPRS Commission II Symposium : June 6 - 10, Ottawa, Canada

Scope:: 1 Online-Ressource (XX, 530 Seiten)

Year of publication:: 1994

Place of publication:: Ottawa

Publisher of the original:: The Surveys, Mapping and Remote Sensing, Natural Resources Canada

Identifier (digital):: 1067490280

Illustration:: Illustrationen

Signature of the source:: ZS 312(30,2)

Language:: English

Additional Notes:: Erscheinungsdatum des Originals ist aus dem Copyrightjahr ermittelt.

Usage licence:: Attribution 4.0 International (CC BY 4.0)

Editor:: Allam, Mosaad; Plunkett, Gordon

Corporations:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

Adapter:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

Founder of work:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

Other corporate:: Symposium Systems for Data Processing, Analysis and Representation, 1994, Ottawa; International Society for Photogrammetry and Remote Sensing; International Society for Photogrammetry and Remote Sensing, Commission Instrumentation for Data Reduction and Analysis; Kanada, Surveys, Mapping and Remote Sensing Sector

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2019

Document type:: Monograph

Collection:: Earth sciences

Chapter

Title:: [Thursday, June 9, 1994]

Document type:: Monograph

Structure type:: Chapter

Chapter

Title:: [Session K-1 WG II/4 - Systems for the Processing of Radar Data - Part B]

Document type:: Monograph

Structure type:: Chapter

Chapter

Title:: Evaluation of Radar Images for Updating Geo-Forestry Information [Alain Coulombe, Mario Hinse]

Document type:: Monograph

Structure type:: Chapter

Evaluation of Radar Images for Updating Geo-Forestry Information Abstract As part of the: annual program of the forestry accounting service of the Department of Forestry of Quebec, several hundred thousand dollars are allocated to the acquisition of air photos for the management of forest inventories. With a view to reducing the costs of this operation, alternative solutions are being explored. To this end, the use of remotely sensed satellite images could lead to significant savings in data acquisition. Currently, optical "images (Landsat-TM or SPOT) are used in operations for certain aspects in the processing of geo- forestry information. However, optical images are subject to the weather conditions prevailing from year to year, such that the managers of the program cannot be assured of good images every year for all parts of Quebec. This is a major limitation, as the managers can hardly tolerate random absences of images in the process of updating forest inventories. Recent research in the field of RADAR images suggests a potentially advantageous application in the updating of geo- forestry information. RADAR is able to penetrate cloud cover and is unaffected by poor weather conditions. We know that airborne SAR images allow rapid detection of major disturbances (burns, clear cuts and strip cuts). However, there are still a number of unanswered questions about the potential for detecting partial disturbances in the forest cover (such as diameter-limit cutting and selection cutting). The objectives of this study are (1) to evaluate the potential of airborne SAR images (SAR C/X of CCRS in C-band) for the annual updating of geo-forestry information; (2) to evaluate the potential of hybridizing airborne SAR images with satellite optical images in the forest environment; and (3) to evaluate the potential of certain satellite SAR images of the ERS-1 and. J-ERS-1 types. The airborne SAR images and SPOT and Landsat-TM images used in this project are ortho- images resulting from rigorous geometric correction developed at the Canada Centre for Remote Sensing. A first interpretation of the images reveals that the Scenes taken in winter provide a clearer distinction of forest cut boundaries than do images taken when snow is absent. The snow cover smooths and masks regeneration in cutovers, making them easier to distinguish from nearby forest cover. 446 ABSTR/ A techr Synthet process data we features Much of cover w weather operatio updating optical « KEY WC 1. INTR The Gec Division and ope Geograr includin: largest 1 ARC/INI 1:20,00 of apprc mapbas hardcop

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