The Experts below are selected from a list of 306 Experts worldwide ranked by ideXlab platform
Paul Aplin - One of the best experts on this subject based on the ideXlab platform.
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Remote sensing: Base mapping
Progress in Physical Geography, 2003Co-Authors: Paul AplinAbstract:Much geographical analysis is underpinned by the need for Base Maps. Base mappingis an obvious, but often neglected, function of remote sensing. Recent developmentsmean that remote sensing is in a stronger position than ever to contribute to the Basemapping needs of the geographical community. Therefore, this paper begins byexamining the role remote sensing has to play in this area. Particular attention is paidto the increasing availability and use of fine spatial resolution satellite sensor imageryand the data requirements of geographical information systems (GIS). This is followedby a broader discussion on the various mapping applications of remote sensing and,finally, a brief summary of general developments in the field.
Milan Konečný - One of the best experts on this subject based on the ideXlab platform.
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The usability of selected Base Maps for crises management—users' perspectives
Applied Geomatics, 2011Co-Authors: Milan Konečný, Petr Kubíček, Zdeněk Stachoň, Čeněk ŠašinkaAbstract:Cartography has become an important tool for supporting decision-making processes in the field of crisis management. Maps (or GIS) can be used for solving various problems, e.g. the localization of accident site, the delimitation of endangered areas, the formulation of evacuation plans and others. People involved in decision-making processes use various procedures to solve these problems. However, a suitable and efficient form of cartographic support for particular situations and crisis management cycle stages is still missing. The main goal of the experiment was twofold. First, we wanted to assess the interdisciplinary (cartography–psychology) web-Based testing environment and achieve the first usability results. Second, the use of different cartographic Base map representations was analysed in order to judge the efficiency for specific situations. Testing was focused on various types of tasks, e.g. simple sign selection, the possibility of memorizing important information from the map and the choice of the optimal evacuation route. The overall testing was performed within the interactive web environment, Based on predefined templates, automatically recorded and calibrated against the evaluation of the pretest users’ abilities. Preliminary testing results provide valuable inputs concerning the usability of selected Base Maps for supporting decision-making processes during various crisis situations.
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the usability of selected Base Maps for crises management users perspectives
Applied Geomatics, 2011Co-Authors: Milan Konečný, Petr Kubíček, Zdeněk Stachoň, Ceněk SasinkaAbstract:Cartography has become an important tool for supporting decision-making processes in the field of crisis management. Maps (or GIS) can be used for solving various problems, e.g. the localization of accident site, the delimitation of endangered areas, the formulation of evacuation plans and others. People involved in decision-making processes use various procedures to solve these problems. However, a suitable and efficient form of cartographic support for particular situations and crisis management cycle stages is still missing. The main goal of the experiment was twofold. First, we wanted to assess the interdisciplinary (cartography–psychology) web-Based testing environment and achieve the first usability results. Second, the use of different cartographic Base map representations was analysed in order to judge the efficiency for specific situations. Testing was focused on various types of tasks, e.g. simple sign selection, the possibility of memorizing important information from the map and the choice of the optimal evacuation route. The overall testing was performed within the interactive web environment, Based on predefined templates, automatically recorded and calibrated against the evaluation of the pretest users’ abilities. Preliminary testing results provide valuable inputs concerning the usability of selected Base Maps for supporting decision-making processes during various crisis situations.
Randall J Schaetzl - One of the best experts on this subject based on the ideXlab platform.
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Digital Classification of Hillslope Position
Soil Science Society of America Journal, 2015Co-Authors: Bradley A Miller, Randall J SchaetzlAbstract:Hillslope position has long been important in soil geomorphology. At the scale of county-level soil Maps, more soil boundaries are Based on topography than any other soil-forming factor. However, the inability to accurately delineate topographic breaks across hillslopes—either due to lack of sufficient topographic resolution or the proper technology to develop and/or model them—hinders soil mapping efforts. In this research, we developed a decision tree model for classifying hillslope position, which was calibrated and validated using the observations of soil scientists in the field. Different decision tree structures were tested with classification breaks Based on calibration groups’ mean midpoints, median midpoints, and fuzzy membership. The final model objectively and quantitatively classifies the five major hillslope positions and performs well on different landscapes, making it suitable for efficient application to large areal extents. The resulting Maps of hillslope position represent Base Maps that can be used to (i) improve research on toposequences by providing explicit definitions of each hillslope element’s location, (ii) facilitate the disaggregation of soil map unit complexes, and (iii) identify map unit inclusions that occur due to subtle topographic variation. Base Maps developed by the model can also help identify areas of possible inaccuracies in soil Maps, especially where soil boundaries cross topographic breaks. Predictions from the model enable the mapper to better place soil map unit boundaries at locations where defendable landscape breaks exist.
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the historical role of Base Maps in soil geography
Geoderma, 2014Co-Authors: Bradley A Miller, Randall J SchaetzlAbstract:Abstract Soil mapping is a major goal of soil science. Soil Maps rely upon accurate Base Maps, both for positional reference and to provide environmental data that can assist in the prediction of soil properties. This paper reviews the historical development of Base Maps used for soil mapping, and evaluates the dependence of soil mapping on Base Maps. The availability of geographic technology for producing Base Maps has both constrained and directed the geographic study of soil. The lack of accurate methods for determining location limited early geographic descriptions of soils to narratives, or to listings of attributes for property-Based map units. The first real Base Maps available for soil mapping were outline Maps produced in the late 18th century, fueled by governments' interests in documenting national boundaries and popular interest in world atlases. These early soil Maps primarily used outline Maps as a positional reference onto which soil-related thematic detail was added. Eventually, additional spatial information, in the form of topographic Maps and later aerial photographs, increased the predictive role of Base Maps in soil mapping. In the current digital, geospatial revolution, global positioning systems and geographic information systems have nearly replaced the positional reference function of Base Maps. Today, Base Maps are more likely to be used as parameters in soil-landscape models for predicting the spatial distribution of soil properties and classes. Formerly, as a reference for spatial position, paper Base Maps controlled the cartographic scale of soil Maps. However, this relationship is no longer true in geographic information systems. Today, as parameters for digital soil Maps, Base Maps constitute the library of predictive variables and constrain the supported resolution of the soil map.
Čeněk Šašinka - One of the best experts on this subject based on the ideXlab platform.
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The usability of selected Base Maps for crises management—users' perspectives
Applied Geomatics, 2011Co-Authors: Milan Konečný, Petr Kubíček, Zdeněk Stachoň, Čeněk ŠašinkaAbstract:Cartography has become an important tool for supporting decision-making processes in the field of crisis management. Maps (or GIS) can be used for solving various problems, e.g. the localization of accident site, the delimitation of endangered areas, the formulation of evacuation plans and others. People involved in decision-making processes use various procedures to solve these problems. However, a suitable and efficient form of cartographic support for particular situations and crisis management cycle stages is still missing. The main goal of the experiment was twofold. First, we wanted to assess the interdisciplinary (cartography–psychology) web-Based testing environment and achieve the first usability results. Second, the use of different cartographic Base map representations was analysed in order to judge the efficiency for specific situations. Testing was focused on various types of tasks, e.g. simple sign selection, the possibility of memorizing important information from the map and the choice of the optimal evacuation route. The overall testing was performed within the interactive web environment, Based on predefined templates, automatically recorded and calibrated against the evaluation of the pretest users’ abilities. Preliminary testing results provide valuable inputs concerning the usability of selected Base Maps for supporting decision-making processes during various crisis situations.
Ceněk Sasinka - One of the best experts on this subject based on the ideXlab platform.
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the usability of selected Base Maps for crises management users perspectives
Applied Geomatics, 2011Co-Authors: Milan Konečný, Petr Kubíček, Zdeněk Stachoň, Ceněk SasinkaAbstract:Cartography has become an important tool for supporting decision-making processes in the field of crisis management. Maps (or GIS) can be used for solving various problems, e.g. the localization of accident site, the delimitation of endangered areas, the formulation of evacuation plans and others. People involved in decision-making processes use various procedures to solve these problems. However, a suitable and efficient form of cartographic support for particular situations and crisis management cycle stages is still missing. The main goal of the experiment was twofold. First, we wanted to assess the interdisciplinary (cartography–psychology) web-Based testing environment and achieve the first usability results. Second, the use of different cartographic Base map representations was analysed in order to judge the efficiency for specific situations. Testing was focused on various types of tasks, e.g. simple sign selection, the possibility of memorizing important information from the map and the choice of the optimal evacuation route. The overall testing was performed within the interactive web environment, Based on predefined templates, automatically recorded and calibrated against the evaluation of the pretest users’ abilities. Preliminary testing results provide valuable inputs concerning the usability of selected Base Maps for supporting decision-making processes during various crisis situations.