Proceedings of Symposium on Remote Sensing and Photo Interpretation: Proceedings of Symposium on Remote Sensing and Photo Interpretation

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Multivolume work

Persistent identifier:: 842147969

Title:: Proceedings of Symposium on Remote Sensing and Photo Interpretation

Sub title:: October 7 - 11, 1974, Banff, Alberta, Canada

Year of publication:: 1974

Place of publication:: Ottawa, Ontario

Publisher of the original:: Canadian Inst. of Surveying

Identifier (digital):: 842147969

Language:: German

Other Title:: Nebentitel: Proceedings : Symposium on Remote Sensing and Photo Interpretation

Corporations:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Adapter:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Founder of work:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Other corporate:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Document type:: Multivolume work

Volume

Persistent identifier:: 84214806X

Title:: Proceedings of Symposium on Remote Sensing and Photo Interpretation

Sub title:: October 7 - 11, 1974, Banff, Alberta, Canada

Scope:: VII, 465 Seiten

Year of publication:: 1974

Place of publication:: Ottawa, Ontario

Publisher of the original:: Canadian Inst. of Surveying

Identifier (digital):: 84214806X

Illustration:: Illustration, Diagramme, Karten

Signature of the source:: T 15 B 1305

Language:: German

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

Corporations:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Adapter:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Founder of work:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Other corporate:: Symposium on Remote Sensing and Photo Interpretation, 1974, Banff, Alberta; International Society for Photogrammetry, Commission Interpretation of Data; Canadian Institute of Surveying

Publisher of the digital copy:: Technische Informationsbibliothek Hannover

Place of publication of the digital copy:: Hannover

Year of publication of the original:: 2015

Document type:: Volume

Collection:: Earth sciences

Chapter

Title:: ENVIRONMENTAL MONITORING CHAIRMEN. - J. MACDOWALL - N. OPRESCU

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: REMOTE SENSING FOR ENVIRONMENTAL MONITORING AND IMPACT ASSESSMENT. Jean Thie, C. Wachmann, Ottawa, Ontario

Document type:: Multivolume work

Structure type:: Chapter

302 INTRODUCTION The present rate of population growth and the use of our natural resources and living space have made man realize the limits of our planet. Development and growth seem unavoidable and natural resource planning based on ecological concepts is needed. With ecologically based resource manage ment we can hope to maximize long range benefits, social as well as economic, without unduly harming our life-sustaining ecosystems. Essential to such planning and management is knowledge about ecosystems. Only with this knowledge and the study of the impact of man’s past activities can we expect to predict the impact of our planned actions. Without this knowledge the evaluation of resource alternatives becomes ineffective and the expected benefits may prove to be too costly. The development of any region, whether in the economic, social or cultural sphere, is dependent upon the totality of the natural and human resources of that region. Its productivity is dependent, not upon the capabilities of soil and climate alone or upon the capabilities of living organisms alone, but upon specific relationships between living organisms and the total environment (Hills, 1970). In the past, airborne remote sensing has been found to be a most effective tool for the description and mapping of natural ecosystems (Thie, 1972, Johnson, 1970). Remote sensing in the ultra violet, visible, thermal and microwave parts of the electromagentic spectrums has been correlated with many ecosystem parameters which are essential for describing and understanding these systems. New sensors which add new parameters are continuously being developed. For example, in Canada the Sensor Working Group stimulates the development of, among others, correlation spectrometers, a laser fluorosensor, Lidar, spectroscopic devices, and a soil moisture meter (MacDowall, 1973). It is however obvious that ground truthing remains a key to being able to properly describe ecosystem elements. Ecosystems are very dynamic, their elements and their interrelationships are ever-changing. To really understand these, repetitive surveys have to be carried out on hourly, weekly, monthly, yearly or multi-yearly basis. In fact without understanding the dynamics of natural changes of the environment, it will be impossible to adequately assess the impact of man’s activities on the environment. The survey of the natural dynamics of a large area, certainly in Canada, is only possible by means of remote sensing from aircraft and satellites in combination with selective ground truthing. While aircraft remote sensing provides more detailed information, the conduct of frequently repeated airborne surveys over all of Canada is politically as well as financially not feasible. Satellite remote sensing with its low resolution and regular 18-day cycle provides a rea sonable alternative, although it should always be used in combination with aircraft and ground truth data. MONITORING OF NATURAL ENVIRONMENTAL CHANGE The primary purpose of monitoring is to accumulate knowledge about ecosystems and the dynamic interrelationships between elements of these systems.

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