Proceedings of the Symposium on Global and Environmental Monitoring: Proceedings of the Symposium on Global and Environmental Monitoring

Bibliographic data

Multivolume work

Persistent identifier:: 856665355

Title:: Proceedings of the Symposium on Global and Environmental Monitoring

Sub title:: techniques and impacts ; September 17 - 21, 1990, Victoria Conference Centre, Victoria, British Columbia, Canada

Year of publication:: 1990

Place of publication:: Victoria, BC

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 856665355

Language:: English

Document type:: Multivolume work

Volume

Persistent identifier:: 856669164

Title:: Proceedings of the Symposium on Global and Environmental Monitoring

Sub title:: techniques and impacts; September 17 - 21, 1990, Victoria Conference Centre, Victoria, British Columbia, Canada

Scope:: XIV, 912 Seiten

Year of publication:: 1990

Place of publication:: Victoria, BC

Publisher of the original:: [Verlag nicht ermittelbar]

Identifier (digital):: 856669164

Illustration:: Illustrationen, Diagramme, Karten

Signature of the source:: ZS 312(28,7,1)

Language:: English

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

Editor:: International Society for Photogrammetry and Remote Sensing, Commission of Photographic and Remote Sensing Data

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2016

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: [TP-2 SPECTRAL SIGNATURES]

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: ADVANCES IN SIGNATURE MEASUREMENTS - RECENT SENSOR DEVELOPMENTS AT THE CANADA CENTRE FOR REMOTE SENSING. Susan M. Till

Document type:: Multivolume work

Structure type:: Chapter

76 ADVANCES IN SIGNATURE MEASUREMENTS - RECENT SENSOR DEVELOPMENTS AT THE CANADA CENTRE FOR REMOTE SENSING Susan M. Till Canada Centre for Remote Sensing 2464 Sheffield Road, Ottawa, Ontario, Canada K1A 0Y7 ISPRS Commission VII Symposium Victoria, Canada, September 1990 ABSTRACT The sensor research and development program at the Canada Centre for Remote Sensing (CCRS) covers the development and evaluation of new systems and new techniques for remotely sensing the earth's resources and environment. The airborne sensor developments nave been accompanied by the parallel development of data processing and analysis systems, by advances in calibration and correction procedures for signature measurements, and by extensive data acquisition for remote sensing application development. An overview of the sensor developments will be presented, including the high performance CCRS synthetic aperture radar, with the implementation of polarimetrie and interferometric SAR modes, and the high resolution electro-optical spectral imagers including the new wide angle system WHiRL. KEY WORDS: Synthetic aperture radar, multispectral imager, remote sensing, airborne. INTRODUCTION Recent sensor developments at the Canada Centre for Remote Sensing are leading to advances in signature measurements, both in the microwave area and in the visible and infrared regions. In the area of microwave signature measurement, the CCRS Convair-580 provides an airborne radar research facility that is used to establish synthetic aperture radar technology for remote sensing, to conduct research in imaging radar, and to develop new remote sensing applications and new sensor properties for remote sensing. It has flown extensively for research projects across Canada as part of the Radar Data Development Program (RDDP), to prepare for the new range of radar satellites including Radarsat and ERS-1. It has, as well, participated in major international missions in Canada and Europe, such as LIMEX/LEWEX (1987), BEPERS (1988), SISEX (1989), and LIMEX (1989). In the electro-optical area, continuing sensor developments are underway in the implementation and use of high resolution digital imagers for signature measurements in the visible and infra red regions. These have included the development and test flights of the Wide-angle High Resolution Line-imager, WHiRL, with high radiometric and spatial resolution across a 70 degree field-of-view, and the development, now in the integration stage, of an airborne multi-spectral short wave infra red imager for research studies of infra red signatures. Other activities include the development of an automated laboratory calibration facility for radiometric, geometric and spectral calibration of array imagers, and advances in algorithms and methodology for atmospheric and geometric corrections to allow for enhanced thematic and mapping applications. RADAR SIGNATURE MEASUREMENTS The CCRS airborne synthetic aperture radar (SAR) has acquired a unique and extensive set of radar data from oceans, ice and land, and these have led to improved understanding of microwave-target interactions. The SAR, which is the primary sensor in the Convair-580, is an extremely versatile system for remote sensing research, with many options for flight and radar configurations and image products. The CCRS C-/X-Band SAR system, which was developed under contract to CCRS by MacDonald, Dettwiler and Associates as prime contractor, has been designed to operate in a large number of well-defined discrete states. Parameters are accurately resettable and automatically logged during operation of the radar, while a small number of key radar system parameters such as range delay are continuously variable. The system has proved not only a versatile state-of-the-art research facility but a reliable and stable system that can be well calibrated. The C-Band portion of the radar was commissioned in the CCRS Convair-580 aircraft in 1987, and the X-Band portion was installed in January 1988. Since then, the two radars have flown more than 200 research missions for a range of remote sensing disciplines and for many research groups and user agencies in the remote sensing community. These missions have ranged from multi-temporal studies of agricultural targets, during the growing season and under different environmental conditions, to studies of ice and oceans with dedicated survey vessels and participants from international groups, to forestry signature investigations coordinated with ground data measurements and multi-sensor acquisition. These missions have been complemented by continuing development and evaluation of the system, its calibration, and the processing methods. Results from the Convair-580 research missions were presented at the first RDDP Workshop held in January 1990, and a comprehensive list of publications resulting from the C-/X-Band SAR developments and the RDDP are provided in the Workshop Report (1990). Some specific developments include improved understanding of ice and ocean interaction (for example, refer to: Special Issue on Labrador Ice Margin Experiment LIMEX and the Labrador Extreme Waves Experiment (LEWEX), 1989; and Vachon and Bhogal, 1990), advances in agricultural signature measurements (for example, Brisco et

Access restriction

Copyright

fullscreen: Proceedings of the Symposium on Global and Environmental Monitoring (Part 1)

Multivolume work

Volume

Chapter

Chapter

Table of contents

Cite and reuse

Volume

Chapter

Image

Image fragment

Citation links

Citation recommendation