Showing papers in "Mapping Sciences & Remote Sensing in 1995"
TL;DR: A new method of mapping landslide hazards on Tahiti is presented, based on various types of digital data (SPOT satellite imagery, digital geologic maps, and a numerical terrain model), and techniques of pattern recognition and data analysis procedures in a geographic information system are described.
Abstract: This paper presents a new method of mapping landslide hazards on Tahiti, based on various types of digital data (SPOT satellite imagery, digital geologic maps, and a numerical terrain model). Techniques of pattern recognition and data analysis procedures in a geographic information system are described. Samples of the types of maps of natural hazard risk from landslides and other mass movements that can be produced using such procedures are presented and possible future research developments are envisaged. Translated by Dorothy Vitaliano, Bloomington, IN 47401 from: “Cartographie automatique de zones a aleas de mouvements de terrain sur l'ile de Tahiti a partir de donnees digitales,” Bull. Soc. geol. France, 1993, Vol. 164, No. 4, pp. 577-583, with permission of the Societe Geologique de France (please cite original paper).
7 citations
TL;DR: In this article, the authors describe results from a detailed study of circular anomalies related to outcrops of granitic domes over the western part of the Armorican Massif using SPOT, Landsat TM, Seasat and comp...
Abstract: This paper describes results from a detailed study of circular anomalies—related to outcrops of granitic domes over the western part of the Armorican Massif—using SPOT, Landsat TM, Seasat, and comp...
3 citations
TL;DR: The authors describe the results of a long-term program for the testing and refinement of a geology-geomorphology block in an instructional GIS at a scientific field station administered by Moscow University.
Abstract: The authors describe the results of a long-term program for the testing and refinement of a geology-geomorphology block in an instructional GIS at a scientific field station administered by Moscow University. Particular attention is devoted to the formulation of a series of practical exercises designed to familiarize students with the capabilities and limitations of GIS in the solution of practical geological and geomorphological problems. Translated by Edward Torrey, Alexandria, VA 22308 from: Geomorfologiya, 1994, No. 2, pp. 86-94.
3 citations
TL;DR: In this article, a modeling method based on remote sensing observations of potential sites of ore-bearing bodies in fold nappe structures, which control the distribution of minerals of hydrothermal-metasomatic orig...
Abstract: A modeling method based on remote sensing observations of potential sites of ore-bearing bodies in fold nappe structures, which control the distribution of minerals of hydrothermal-metasomatic orig...
1 citations
TL;DR: Vitaliano et al. as discussed by the authors used space imagery to determine the age of landscapes in the southern Aral Sea region, based on information derived from a variety of sources, including knowledge of the duration of various stages of plant succession following abandonment of irrigated fields, archaeological data, ancient maps and multitemporal space photographs.
Abstract: The results of the interpretation of space imagery make it possible to conclude that contemporary landscapes in the southern Aral Sea region are relatively young. A general section devoted to the methodology of using space imagery to compile maps of the age of contemporary landscapes precedes a description of the procedures used to determine the age of landscapes in the southern Aral Sea region. The latter procedures are based on information derived from a variety of sources, including knowledge of the duration of various stages of plant succession following abandonment of irrigated fields, archaeological data, ancient maps, and multitemporal space photographs. Excerpts from space imagery and interpretation maps are presented. Translated by Dorothy B. Vitaliano, Bloomington, IN 47408 from: Geografiya i prirodnyye resursy, 1995, No. 2, pp. 96-108.
1 citations
TL;DR: In this paper, the mapping of lineament networks in greenstone belts of the northern Baltic Shield provides the basis for correlation analysis of 75 parameters of the lineament network in an area of known gold mineralization.
Abstract: The mapping of lineament networks in greenstone belts of the northern Baltic Shield provides the basis for correlation analysis of 75 parameters of the lineament network in an area of known gold mineralization. Results of the analysis indicate definite structural control for certain types of gold mineralization and make it possible to delimit prospective areas.
1 citations
TL;DR: A quantitative method for mapping the contemporary dynamics of ecosystems using a time series of four surveys and the types of ecological transitions identified from remote sensing imagery and their frequencies are described.
Abstract: A quantitative method for mapping the contemporary dynamics of ecosystems is described. Particular reference is to the mapping of the desertification of complex ecosystems of the lower reaches of the Amudar'ya using a time series of four surveys. The types of ecological transitions identified from remote sensing imagery and their frequencies are described. Translated by Edward Torrey, Alexandria, VA 22308 from: Izvestiya Akademii Nauk, seriya geograficheskaya, 1994, No. 5, pp. 112-122.
1 citations
TL;DR: A map of zones of probable groundwater occurrence in eastern Rostov Oblast was compiled on the basis of combined geostructural and landscape interpretation of space photographs and scanner imagery as discussed by the authors.
Abstract: A map of zones of probable groundwater occurrence in eastern Rostov Oblast was compiled on the basis of combined geostructural and landscape interpretation of space photographs and scanner imagery. A method of inferring hydrological information from features visible on space imagery (vegetation) was devised to identify potentially promising zones in terms of character of water mineralization and depth of groundwater occurrence.
1 citations
TL;DR: The study compares the use of the various remote sensing image products in terms of their potential for the identification of major categories of forest lands, including sectors covered by forest, brushy overgrowth, clean cutover areas, wetland tracts, as well as areas of different floristic composition and stand productivity.
Abstract: Imagery derived from the Russian Kosmos-1939, SPOT, and Landsat-TM satellite systems are evaluated in terms of their effectiveness in solving problems relating to the monitoring of boreal forests. The study compares the use of the various remote sensing image products in terms of their potential for the identification of major categories of forest lands, including sectors covered by forest, brushy overgrowth, clean cutover areas, wetland tracts, as well as areas of different floristic composition and stand productivity.
TL;DR: Torrey et al. as mentioned in this paper examined the use of passive microwave radiometry to monitor many hydrologic parameters of lakes, despite the existence of a snow-ice cover at their surface.
Abstract: A paper examining the use of passive microwave radiometry focuses on how use of that technology makes it possible to monitor many hydrologic parameters of lakes, despite the existence of a snow-ice cover at their surface. More specifically, the measurement of thermal emissions in the microwave range of the spectrum is used to identify the existence in surface ice cover of liquid and gas inclusions related to bottom gas release and water mineralization differences. Natural thermal emissions of two endoric, seasonally saline lakes in East Siberia are surveyed aerially with nonscanning microwave radiometers at wavelengths of 0.8 and 2.3 cm, with particular emphasis on the monitoring of changes in salinity based on changes in ice emissivity. Similar measurements then are made for a series of freshwater lakes in the same general area to determine whether comparable results are obtained. Translated by Edward Torrey, Alexandria, VA 22308 from: Geografiya i prirodnyye resursy, 1994, No. 1, pp. 170-175.
TL;DR: Torrey et al. as mentioned in this paper presented a new set of bathymetric maps based on the summary and analysis of data obtained on the bottom topography of Antarctica, which represented an improvement in the depiction of the undersea topology of the oceans of the Antarctic region.
Abstract: A new set of bathymetric maps is compiled based on the summary and analysis of data obtained on the bottom topography of Antarctica. This article focuses on the use of pre-existing bathymetric information in the compilation of the new maps and how the resulting maps represent an improvement in the depiction of the undersea topography of the oceans of the Antarctic region. A brief survey of the basic submarine topographic regions of the Antarctic precedes a review of new approaches to terrain representation (e.g., the geomorphologic interpolation method), particularly as they pertain to the portrayal of such features as mid-oceanic ridges, seamounts rising from abyssal plains, and transition zones between the continental slopes and basin floors. Translated by Edward Torrey, Alexandria, VA 22308 from: Antarktika (Antarctica). Moscow: Rossiyskaya Akademiya Nauk, Sovet po izucheniyu Antarktiki, 1993, No. 32, pp. 79-85.
TL;DR: A correlation is established between the spatial temporal variability of the system of cold filaments and the seasonal intensification of the upwelling.
Abstract: The existence of a system of cold and warm transverse upwelling filaments was established on the basis of an analysis of daily infrared satellite images of the Benguela upwelling (15-32° S) recorded during two sea expeditions during January-February 1986 and April-June 1988 and its principal characteristics were determined. The geographic location of the filaments and their relationship to bottom topography is analyzed. A correlation is established between the spatial temporal variability of the system of cold filaments and the seasonal intensification of the upwelling.
TL;DR: In this paper, an alternative method for measuring the vertical distribution of ozone molecules in the atmosphere is described, based on active radar sounding of the ozone layer using two satellites recording information at the resonance absorption frequencies of O3.
Abstract: This paper describes an alternative method for measuring the vertical distribution of ozone molecules in the atmosphere to that described most commonly in the literature. The method is based on active radar sounding of the ozone layer using two satellites recording information at the resonance absorption frequencies of O3.
TL;DR: The condition of forests at the far northern edge of the Siberian taiga, in the zone of negative environmental impacts from emissions of the Noril'sk Mining and Metallurgical Combine, was studied using images from Meteor and Priroda satellites to find a considerable increase in the rate of tree stand damage.
Abstract: The condition of forests at the far northern edge of the Siberian taiga, in the zone of negative environmental impacts from emissions of the Noril'sk Mining and Metallurgical Combine, was studied using images from Meteor and Priroda satellites. A considerable increase in the rate of tree stand damage was discovered in the late 1970s-early 1980s, attributable to an increase in SO2 emissions. The zone of forest degradation zone now extends for up to 200 km leeward of the major emissions sources and tree stands have been killed at distances of up to 80 to 100 km.
TL;DR: In this article, the authors discuss scientific information derived from observations from the GMS geostationary satellite and Doppler radar measurements of cloud concentrations immediately prior to the passage of a typhoon over an area of the northwest Pacific.
Abstract: The authors discuss scientific information derived from observations from the GMS geostationary satellite and Doppler radar measurements of cloud concentrations immediately prior to the passage of a typhoon over an area of the northwest Pacific. Image processing made it possible to ascertain changes in convective turbulence over space and time. Experience in selection and adjustment to imaging conditions using Doppler radar in the field are described and their applicability to observations in space are discussed.
TL;DR: In this paper, the authors presented an analysis of Landsat MSS imagery for the purpose of assessing damage to northern taiga and tundra vegetation caused by emissions generated by nonferrous metallurgy on northwest Russia's Kola Peninsula.
Abstract: Results are presented of analysis of Landsat MSS imagery for the purpose of assessing damage to northern taiga and tundra vegetation caused by emissions generated by nonferrous metallurgy on northwest Russia's Kola Peninsula. Unlike earlier studies, the present project attempts to provide spatially comprehensive coverage of vegetation impacts, according to a standardized methodology for their assessment. A reduction in the number of feature classes identifiable upon a change from visual interpretation to automated classification based on spectral brightness values made it necessary to test alternative classification procedures (based on brightness ratios and the normalized vegetation index).