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:: 856343064

Title:: Remote sensing for resources development and environmental management

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

Scope:: XV, 547 Seiten

Year of publication:: 1986

Place of publication:: Rotterdam; Boston

Publisher of the original:: A. A. Balkema

Identifier (digital):: 856343064

Illustration:: Illustrationen, Diagramme

Signature of the source:: ZS 312(26,7,1)

Language:: English

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

Editor:: Damen, M. C. J.

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:: 1 Visible and infrared data. Chairman: F. Quiel, Liaison: N J. Mulder

Document type:: Multivolume work

Structure type:: Chapter

Chapter

Title:: Space photomaps - Their compilation and peculiarities of geographical application. B. A. Novakovski

Document type:: Multivolume work

Structure type:: Chapter

59 Symposium on Remote Sensing for Resources Development and Environmental Management / Enschede / August 1986 Space photomaps - Their compilation and peculiarities of geographical application B.A.Novakovski Moscow State University, USSR ABSTRACT: Maps and modern space photographs serve as basic models and information sources used in the geographical research. The key to their effective use in geography is there fore in optimal combination of specific features of maps and space photographs. Such com bination is possible through creation of space photomaps and their appropriate use. From the technical point of view photomaps can be complied from space photographs converted into orthophotoimages on the basis of analogue or photogrammetric orthophotoequipment. Pra ctical aspects of obtaining space orthophotoimages and photomaps are illustrated by analy sis and analogue processing of the stereoscopic couple of space photographs taken over the Pamiro-Alay area by the "Souyz-22" multispectral MKF-6 camera. One of the specific featu res of space photomap application is the possibility of improving the derived morphometric, correlation and other maps. This is shown through the application of the hypsometric pic ture (obtained by means of photogrammetry) aimed at compiling maps of morphoisolines, ho rizontal and vertical relief dissection, erosion network and lineaments. Combination of cartometry, morphometry, quantitative interpretation and mathematical-cartographical mo delling is an important trend in the application of remote sensing and cartographic metho ds of research based on photogrammetric approaches. i the Lied likeli- ed and lfor- Of special importance for thematic interpre tation of the remote sensing data is their presentation in the form most suitable for solving various scientific and practical problems of geography. Cartography is beli*. eved to the principal method that fully ma kes use of the advantages and takes into account the peculiarities of orbital images of the Earth. Thematic maps based on the interpretation of space images or photomo- zaics are highly reliable. A new possibili ty imerging out of space-based meso- and microscale thematic cartography is the de velopment of the research function of the cartographic method. From the comparison of space images and maps it is evident that the former present an integral uninterpreted picture of a cer tain fragment of the Earth's surface in all its geographical complexity. Out of that complex picture maps reflect only an inter preted and ordered in a certain way discre te integral image depending on their themes. It is thus quite natural that space photo graphs are at a higher level than maps^in the hierarchy of geographical models (Bep— JIHHT t 1978) . Space images and maps have some common and comparable features, such as selectivity, scale and metricity, visu- ality, singularity, geometric similarity to actual objects on the Earth surface, as well as territorial-geographic corresponde nce. On the other hand there exist some es sential differences between them especial ly manifest in comparative estimates of their abstractness, syntheticity and logi- city (Neumann, 1981). Modern maps, and space images are joint ly used in the geographical research. They can be processed by kindred methods of car tometry, mass-scale extraction of morpho metric and statistical information, crea tion of digital and mathematic models. It should De noted that it's not only simila rity of maps and photographs as models of reality that favours their joint applica tion, but their differences (providing mu tual complementarity) as well. Modern thematic map is, thus, an impor tant geographic model possesing many meri ts as well as certain shortcomings. The characteristics of space images make it possible to limit or even eliminate certa in negative features of maps. We believe the decision to be in a search of optimal combination of appropriate qualities of maps and space images. Such a combination is provided by the development and proper use of space photomaps. From the technical point of view space photomaps are half-tone photographic pic tures of the Earth's surface (black-and- white or coloured) with background and shading conventional signs used in compiling coi’responding types of maps . The identification of necessary objects on space images, their interpretation and mapping are difficult tasks of cartographic- photo gramme trie interpretation. The proces sing of such pictures is apt to take more effort than traditional techniques based on small-scale aerial images do. That is why it's expedient to transform space pho tographs (especially those of high resolu tion) into orthophotomaps. Such a treatment leaves intact all details of plained con tents while largely reducing the labour consuming drawing procedures. The modern optico-mechanical analogue or electronic-digital orthophotoequipment al lows the use of space images as maps proper while traditionally they are no more than a mapping base. The most valuable feature of an orthophotoimage is it's uniform sca le, facilitating exact cartometric measu rements without any initial image correcti ons for slope effects, area's surface re-

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