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Infrar”otermografi. Principer och Naturgeografiska Tillampningar
Geoforum
97
2/1970
of light is very important. He tried to find out which kind of light was most favourable in combination with different filtertypes. Diffuse light was found to be less satisfactory than focussed light. It also became clear that not equal weight can be given to the three aspects of colour, viz tone, saturation and brightness. Colour tone is of greater importance because of its greater stability. In comparison to black and white photography, colour photography gives a greater information in landuse interpretation. Geographers, however, should get a good knowledge about all problems concerning colour, will they be able to get a maximum of information from colour photographs. The study of MAURER is of great value as a first systematic step in this field not in the least for the automation in interpretation that we have to expect in the future. Chr. Van WELSENES, Groningen
Aerial Surveys and Integrated Studies - Exploration aMenne et Btudes intdghs (1968): Proceedings of the Toulouse Conference, 575 pp.; Paris: UNESCO. This volume, published in 1968, presents the proceedings of the “Toulouse Conference”, held in 1964 under the auspices of UNESCO, the Centre National de la Recherche Scientifique de France (C.N.R.S.) and the University of Toulouse. The conference aimed at the appraisal of the experience gained in the past twenty years, in the use of aerial photography for the study of natural resouces. The proceedings of this conference are published as part VI of UNESCO’s Series in Natural Resources Research. It contains 59 contributions rubricated under three main headings :
I - Review of research concerning the applications of aerial photograph interpretation to the investigation of natural resources (9 papers) II - Major survey approaches: sample surveys (8 papers) III - Other surveys of an integrated nature (42 contributions). The fourth part presents the organized panel discussion on survey principles, under six different headings, and the fifth and final section contains the General Report and the resolutions adopted by the conference.
In Section I, major papers are devoted to photogeology, photogeomorphology, air photo and water resources, air photos in soil science, in vegetation studies, and in agrarian archaeology. Papers spanning a wider range of subjects deal with the use of aerial photography in the investigation of natural resources in the U.S.S.R., and on the methodology of integrated surveys. A paper on financial aspects of regional development seems somewhat out of place in this section, which contains a wealth of information for all those concerned with photo interpretation. In Section II, major survey approaches are pesented in the form of sample surveys, converihg F.A.O. activities, C.S.I.R.O. work in Autralia, survey in the Dominican Republic, the Niger Dam surveys, inventory surveys in Chile, integrated studies of the U.S.S.R., preinvestment studies in temperate zones. These papers provide interesting material for comparison of methodology and approach, while at the same time it becomes clear that each project is a case in itself and that general rules are hard to set. Section III presents 42 papers dealing in shorter form with surveys of an integrated nature from many parts of the globe. Here again, comparison of papers brings out the differences and similarities in approaches and problems encountered. The need for integration in surveys of natural resources and/or natural environment becomes apparent from many of the papers in sections II and III, and from the discussions in section IV. Accordingly, the conference adopted a number of resolutons emphasizing the need for integrated surveys, and for training facilities in the fields of integrated surveys and air photo interpretation. In the time lapse between the conference, and the publication of the proceedings, much activity has been initiated towards the furthering of integrated surveys in various countries, and this volume provides an interesting backdrop for these activities. The book contains invaluable information, not only by the contents of individual papers, but also by bringing together results and methodologies from different disciplines and many different parts of the world. The comparative study of papers in this volume proves highly rewarding to the reader: this book can be considered indispensable litterature for all those engaged in photo interpretation and integrated surveys.
J.J. NOSSIN, Delft
FAGERLUND, Erik, et al. : Infrarbdterm~ grafi. Principer och Naturgeografiska Tillampningar; Svensk Geografis Arsbok 43, 1967, pp. 156-225. In Swedish with short English summary. The publication contains 4 papers. In the first the basic principles are given of airborne thermal mapping. The second covers recording of temperatures. The applications described are restricted mainly to micro- and mesoclimatic indications. In the third paper temperature differences caused by built-up areas are described. In the last paper topography is described. It is concluded that the applicability of the technique is rather limited. JARVENSTEDT, Rune, et al. : Television System. I Natur Geografisk Forskning; Svensk Geografisk Arsbok 44, 1968, pp. 7-68. In Swedish with short English summary. The publication groups 5 papers. The first describes a thermal television camera with direct presentation to be used for medicine, research and industry. The second describes model experiments on urban climate with an infrared television system. In the third paper a thermal registration with infrared television system is discussed and a new technique in microclimatic investigations. In the fourth paper is indicated how information from small surfaces can be derived by using the thermal recording unit of an infrared television system, and in the last paper weather satellite photography of the land surface of Norden is discussed. These two publications give a short survey of the status of the use of thermal infrared imagery in 1967; both from moving platforms (airborne thermal infrared scanner) and on the ground (AGA thermovision). The AGA thermovision is an infrared television system that presents the temperature distribution of an object as a thermal picture on the screen of a cathode ray tube. The results mentioned are in good agreement with the research carried out elsewhere in the world. D. de HOOP, Delft
Actes du IIe Symposium International de Photo-Interpretation. Paris 1966 (1967): Edited by Secretariat, Commission VII (Photo Interpretation), I.S.P.; International Archives of Photogrammetry, vol. 16, 686 pp., 240 illustr. Paris: Editions Technip. N.F. 125,-. The idea of organizing a symposium, wholly devoted to photo interpretation, originated when the responsibility for
97
2/1970
of light is very important. He tried to find out which kind of light was most favourable in combination with different filtertypes. Diffuse light was found to be less satisfactory than focussed light. It also became clear that not equal weight can be given to the three aspects of colour, viz tone, saturation and brightness. Colour tone is of greater importance because of its greater stability. In comparison to black and white photography, colour photography gives a greater information in landuse interpretation. Geographers, however, should get a good knowledge about all problems concerning colour, will they be able to get a maximum of information from colour photographs. The study of MAURER is of great value as a first systematic step in this field not in the least for the automation in interpretation that we have to expect in the future. Chr. Van WELSENES, Groningen
Aerial Surveys and Integrated Studies - Exploration aMenne et Btudes intdghs (1968): Proceedings of the Toulouse Conference, 575 pp.; Paris: UNESCO. This volume, published in 1968, presents the proceedings of the “Toulouse Conference”, held in 1964 under the auspices of UNESCO, the Centre National de la Recherche Scientifique de France (C.N.R.S.) and the University of Toulouse. The conference aimed at the appraisal of the experience gained in the past twenty years, in the use of aerial photography for the study of natural resouces. The proceedings of this conference are published as part VI of UNESCO’s Series in Natural Resources Research. It contains 59 contributions rubricated under three main headings :
I - Review of research concerning the applications of aerial photograph interpretation to the investigation of natural resources (9 papers) II - Major survey approaches: sample surveys (8 papers) III - Other surveys of an integrated nature (42 contributions). The fourth part presents the organized panel discussion on survey principles, under six different headings, and the fifth and final section contains the General Report and the resolutions adopted by the conference.
In Section I, major papers are devoted to photogeology, photogeomorphology, air photo and water resources, air photos in soil science, in vegetation studies, and in agrarian archaeology. Papers spanning a wider range of subjects deal with the use of aerial photography in the investigation of natural resources in the U.S.S.R., and on the methodology of integrated surveys. A paper on financial aspects of regional development seems somewhat out of place in this section, which contains a wealth of information for all those concerned with photo interpretation. In Section II, major survey approaches are pesented in the form of sample surveys, converihg F.A.O. activities, C.S.I.R.O. work in Autralia, survey in the Dominican Republic, the Niger Dam surveys, inventory surveys in Chile, integrated studies of the U.S.S.R., preinvestment studies in temperate zones. These papers provide interesting material for comparison of methodology and approach, while at the same time it becomes clear that each project is a case in itself and that general rules are hard to set. Section III presents 42 papers dealing in shorter form with surveys of an integrated nature from many parts of the globe. Here again, comparison of papers brings out the differences and similarities in approaches and problems encountered. The need for integration in surveys of natural resources and/or natural environment becomes apparent from many of the papers in sections II and III, and from the discussions in section IV. Accordingly, the conference adopted a number of resolutons emphasizing the need for integrated surveys, and for training facilities in the fields of integrated surveys and air photo interpretation. In the time lapse between the conference, and the publication of the proceedings, much activity has been initiated towards the furthering of integrated surveys in various countries, and this volume provides an interesting backdrop for these activities. The book contains invaluable information, not only by the contents of individual papers, but also by bringing together results and methodologies from different disciplines and many different parts of the world. The comparative study of papers in this volume proves highly rewarding to the reader: this book can be considered indispensable litterature for all those engaged in photo interpretation and integrated surveys.
J.J. NOSSIN, Delft
FAGERLUND, Erik, et al. : Infrarbdterm~ grafi. Principer och Naturgeografiska Tillampningar; Svensk Geografis Arsbok 43, 1967, pp. 156-225. In Swedish with short English summary. The publication contains 4 papers. In the first the basic principles are given of airborne thermal mapping. The second covers recording of temperatures. The applications described are restricted mainly to micro- and mesoclimatic indications. In the third paper temperature differences caused by built-up areas are described. In the last paper topography is described. It is concluded that the applicability of the technique is rather limited. JARVENSTEDT, Rune, et al. : Television System. I Natur Geografisk Forskning; Svensk Geografisk Arsbok 44, 1968, pp. 7-68. In Swedish with short English summary. The publication groups 5 papers. The first describes a thermal television camera with direct presentation to be used for medicine, research and industry. The second describes model experiments on urban climate with an infrared television system. In the third paper a thermal registration with infrared television system is discussed and a new technique in microclimatic investigations. In the fourth paper is indicated how information from small surfaces can be derived by using the thermal recording unit of an infrared television system, and in the last paper weather satellite photography of the land surface of Norden is discussed. These two publications give a short survey of the status of the use of thermal infrared imagery in 1967; both from moving platforms (airborne thermal infrared scanner) and on the ground (AGA thermovision). The AGA thermovision is an infrared television system that presents the temperature distribution of an object as a thermal picture on the screen of a cathode ray tube. The results mentioned are in good agreement with the research carried out elsewhere in the world. D. de HOOP, Delft
Actes du IIe Symposium International de Photo-Interpretation. Paris 1966 (1967): Edited by Secretariat, Commission VII (Photo Interpretation), I.S.P.; International Archives of Photogrammetry, vol. 16, 686 pp., 240 illustr. Paris: Editions Technip. N.F. 125,-. The idea of organizing a symposium, wholly devoted to photo interpretation, originated when the responsibility for