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Balasubramanian, Nagarajan
- Application of earth observation dataset and multi-criteria decision-making technique for forest fire risk assessment in Sikkim, India
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Authors
Affiliations
1 Department of Earth Sciences, Indian Institute of Technology Kanpur, Kanpur 208 016, India; Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, India, IN
2 Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, India, IN
3 Department of Earth Sciences, Indian Institute of Technology Kanpur, Kanpur 208 016, India, IN
1 Department of Earth Sciences, Indian Institute of Technology Kanpur, Kanpur 208 016, India; Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, India, IN
2 Department of Civil Engineering, Indian Institute of Technology Kanpur, Kanpur 208 016, India, IN
3 Department of Earth Sciences, Indian Institute of Technology Kanpur, Kanpur 208 016, India, IN
Source
Current Science, Vol 121, No 8 (2021), Pagination: 1022-1031Abstract
Forest fire is one of the primary and recurring problems in Sikkim, India impacting the ecological heritage of the region. The article presents a fire risk model based on the identification of the major factors that contribute to forest fire, namely, vegetation type, vegetation density, land surface temperature, elevation, slope, aspect, and distance from settlements, rivers and roads, and then integrating them using a multi-criteria decision-making technique in a GIS framework. We document that more than 50% of the area of all the districts except North Sikkim falls into high to moderate risk zones. The model shows that 61% of fire information for resource management system data for the last 16 years coincide with the mapped high-risk zone of the state. Areas with low slope and with moderate vegetation density fall into very high risk, whereas areas with high slope and with high vegetation density correspond to moderate risk zones. Further, aspect and density of human intervention differentiate the very high and high-risk zones of the region. This model has provided a robust geographical representation of fire ignition probability and identification of high-risk areas at different regions for the entire state of SikkimKeywords
Analytic hierarchy process, forest fire risk, multi-criteria decision-making technique, remote sensing, risk map.Full Text
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- Stable and upgraded horizontal datum for India
Abstract Views :172 |
PDF Views:99
Authors
Affiliations
1 Indian Institute of Technology, Kanpur 208 016 GFZ German Research Centre for Geosciences, 14473 Potsdam, Germany, IN
2 Indian Institute of Technology, Kanpur 208 016, IN
3 GFZ German Research Centre for Geosciences, 14473 Potsdam; Institute of Geodesy and Geoinformation Science, Technische Universität Berlin, 10623 Berlin, DE
1 Indian Institute of Technology, Kanpur 208 016 GFZ German Research Centre for Geosciences, 14473 Potsdam, Germany, IN
2 Indian Institute of Technology, Kanpur 208 016, IN
3 GFZ German Research Centre for Geosciences, 14473 Potsdam; Institute of Geodesy and Geoinformation Science, Technische Universität Berlin, 10623 Berlin, DE
Source
Current Science, Vol 123, No 1 (2022), Pagination: 43-51Abstract
A precise datum is significant as a starting or reference point for a multitude of activities like floodplain maps, property boundaries, civil surveys, precise agriculture, crustal deformation and climate studies, and works requiring consistent coordinates. A large nation like India, with almost its own tectonic plate, must have a well-defined network of horizontal datum for determining accurate and reliable 3D positioning for every user, anywhere and anytime. This article discusses the significance, methodology of realization and transformation, applications and static/dynamic coordinates for paving the way for a National Horizontal Datum in IndiaKeywords
Geodetic Survey, Horizontal Datum, Reference Frame, Tectonic Plate, Three-dimensional PositioningFull Text
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Abstract Views :162 |
PDF Views:110
Authors
Affiliations
1 National Centre for Geodesy, Indian Institute of Technology Kanpur 208 016, India; School of Earth and Planetary Sciences, Curtin University of Technology
2 National Centre for Geodesy, Indian Institute of Technology Kanpur 208 016
1 National Centre for Geodesy, Indian Institute of Technology Kanpur 208 016, India; School of Earth and Planetary Sciences, Curtin University of Technology
2 National Centre for Geodesy, Indian Institute of Technology Kanpur 208 016
Source
Current Science, Vol 123, No 3 (2022), Pagination: 256-258Abstract
No Abstract.Full Text
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