Remote sensing for resources development and environmental management: Remote sensing for resources development and environmental management

damen, m. c. j.

Bibliographic data

Multivolume work

Persistent identifier:: 856342815

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856342815

Language:: English

Additional Notes:: Volume 1-3 erschienen von 1986-1988

Editor:: Damen, M. C. J.

Document type:: Multivolume work

Volume

Persistent identifier:: 856641294

Title:: Remote sensing for resources development and environmental management

Sub title:: proceedings of the 7th international Symposium, Enschede, 25 - 29 August 1986

Scope:: IX Seiten, Seiten 551-956

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A,. A. Balkema

Identifier (digital):: 856641294

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(26,7,2)

Language:: English

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

Editor:: Damen, M. C. J.

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:: 5 Non-renewable resources: Geology, geomorphology and engineering projects. Chairman: J. V. Taranik, Liaison: B. N. Koopmans

Write comment:: Wegen zu enger Bindung kommt es teilweise im Original zu Textverlust.

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: A remote sensing methodological approach for applied geomorphology mapping in plain areas. Elíseo Popolizio, Carlos Canoba

Document type:: Multivolume work

Structure type:: Chapter

Symposium on Remote Sensing for Resources Development and Environmental Management / Enschede / August 1986 657 A remote sensing methodological approach for applied geomorphology mapping in plain areas Elíseo Popolizio Centro de Geociencas, Universidad Nacional del Nordeste, Argentina Carlos Canoba Instituto de Fisiograffia y Geología, Universidad Nacional de Rosario, Argentina ABSTRACT: Methodological problems faced along for more than a decade in applied geomorphological mapping of extense areas of the Argentine plains,allows the formulation of a methodological criteria based on remote sens ing. According to plain singularities and scales perception levels relations between each study objectives and final cartographic scales is discussed. Relations objective and scale are analyzed for three taxonomic levels: regional, zonal and local as well as what it an adequate symbology. INTRODUCTION Present work objective is the description of methodo logical problems that have been faced during a decade and more for applied geomorphological mapping of large plain areas, using basically remote sensing support. On the base of such experience methodological criteria were elaborated for terrain mapping with several objectives, in different perception levels and in corresponding scales. For that matter it seems convenient to start from the systems theory conception of geomorphology, which was reached after successive approximations (Fig.1) (Popolizio 1980). This presupposes the existence of four principal subsystems (interoperated between them under the parametric controls of three universes). They are: lithostructural, biotic, hydric and edaphic. Forms and processes are system outputs, the replies external parametric controls, that is to say, they are dynamic and they have memory. On the other hand, as Callieux-Tricart (1965) say, the size of the geo morphological unit being analyzed (taxonomic level) decisively influences on the relative importance of each subsystem. All this is seen on the landscape and obviously it is reflected on the remote sensing imagery. Therefore it is necessary to be clear on the fact that rather past is seen than present in a temporal cut, within an evolutionary tendency where variables and subsystems are differently perceived according to the perception level. When work objective is applied cartography, a new problematic is introduced which is entailed to work objective and representation scalp,which can coincide or not with that of the image. So before starting a work it is imprescindible to ask oneself the following questions: a)Which is work objective?, b) Which is the reality observed?, c) What is reflected from this reality on the available imagery? d) Which scale is to be used in the present ation of work result? Due to the huge extension of large plains they basically require a totalizing and synthetic vision of landscape, so as not to risk falling into partial ity; nevertheless detailed work is also needed so as not to fall into generality. Few methods allow both aspects to be managed efficiently, rapidly and cheap ly; remote sensing constitutes and advantageous tech nique, particularly when applied geomorphological works are performed. GATHERED EXPERIENCE Exposed concepts are the result of a large experience in the use of photointerpretation translated in perceived in the imagery and what can be plotted using numerous works. It has been performed at detail and semidetail level covering thousands of square kilo meters which represented a permanent synthesis effort through succesive aproximations which still continue. Figure 1. Geomorphological System. A.Climatic; B An thropic; C Geodynamic; a Hydrologic; b Edaphic; c Lithostructural; d Biotic We should not forget to mention thath the former works which systematically employed remote sensors for argentine large plains interpretation were per formed by P.Pasotti (1966) and, on the other hand, were always performed as the base for Applied Geo morphology for engineering matters. From the beginning of investigations the authors were confronted with the questions to already stated problems especially in what concerns to a valid and operative relationship between the landscape, the work objective and its cartography. At those times satellite imagery were not available and even now proffesionals do not easily obtain them or they are not willing to employ them. Nevertheless authors permanent thoughts to seek for the adequate level perception to permit synthesis obtention; that also implies the need of scale changes. This is now adays much more easily to solution than in those days. This problem which appeared to be negative in form*- er times resulted as the best profit in our methodo= logical experiences, due to the fact that it allowed to look for way's to find synthesis with available resources and not to leave aside any document or perception level (as Verstiappen 1983 has refered in multiphase method). This point is not frequently taken in consideration by those investigators at their initial stage of application of the technique. Each document original or generated (p.e.cartogra

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