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Related Concept Videos

Manipulation and Analysis01:21

Manipulation and Analysis

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GIS manipulation and analysis functions are vital for decision-making and planning. These activities range from data retrieval tasks, such as selecting information based on specific criteria, to advanced analytical techniques that address complex spatial problems.One critical GIS analysis method is overlaying, which combines multiple data layers to examine impacts. For example, overlaying a river-dammed lake boundary with road networks can identify affected infrastructure. Another common...
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Applications of GIS: Disaster Management and Emergency Response01:29

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Geographic Information System (GIS) technology is essential for risk identification, action prioritization, and resource optimization in critical situations like flooding and earthquakes. By integrating spatial and demographic data, GIS provides a comprehensive framework for emergency response.GIS integrates data layers, like rainfall intensity, topography, elevation profiles, and river levels, to model high-risk flood zones. These layers assess areas susceptible to flooding based on their...
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Selected Data About Geographic Locations01:25

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Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
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Thematic Layering in GIS01:30

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In the past, planning projects such as schools or public facilities required extensive manual effort to gather and compile data. Information such as property boundaries, soil characteristics, road networks, zoning regulations, and flood zones had to be sourced individually from courthouses, utility providers, and registry offices. Assembling these datasets into a coherent format often took several months, delaying project timelines.The introduction of Geographic Information Systems (GIS)...
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Design Example: Analyzing Capacity Contours for Flood Risk Assessment01:17

Design Example: Analyzing Capacity Contours for Flood Risk Assessment

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Flood risk assessment involves careful planning and analysis to ensure the safety of communities near water retention structures. Capacity contours are a vital tool in this process, as they illustrate the potential spread of water at specific levels in a given area. In the context of building a bund across a small valley, these contours play a critical role in evaluating the safety of nearby residential areas.In this example, the bund is intended to store stormwater in the valley. The engineers...
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Levels of Use of a GIS01:29

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Geographic Information Systems (GIS) operate across three levels of application, each representing an increasing degree of complexity: data management, analysis, and prediction. These levels reflect the expanding functionality and versatility of GIS technology in handling spatial data for diverse purposes.Data ManagementAt its foundational level, GIS serves as a tool for data management, enabling the input, storage, retrieval, and organization of spatial data. This level is often employed in...
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GIS-based spatial analysis for lightning scenario in Bangladesh.

Ferdous Ahmed1, Sakib Hasan2, I M Mahbubul3

  • 1Department of Environmental Science, International University of Business Agriculture and Technology, 4 Embankment Drive Road, Sector-10, Uttara, Dhaka, Bangladesh.

Heliyon
|April 8, 2024
PubMed
Summary

Lightning strikes in Bangladesh are increasing, causing many deaths, especially among farmers and fishermen. This study maps high-risk areas and seasons to aid prevention efforts.

Keywords:
BangladeshGeographic Information system (GIS)Lightning fatalitiesLightning scenario

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Area of Science:

  • Atmospheric Science
  • Disaster Management
  • Geographic Information Systems

Background:

  • Bangladesh faces a severe crisis due to rising lightning frequency, particularly during the pre-monsoon and monsoon seasons.
  • Lightning casualties were officially declared a natural disaster in 2016, highlighting the urgent need for research.
  • Previous studies lacked comprehensive spatial and temporal analysis of lightning-related fatalities.

Purpose of the Study:

  • To analyze the spatial and temporal patterns of lightning fatalities and casualties in Bangladesh.
  • To identify vulnerable populations and geographical hotspots for lightning strikes.
  • To provide data-driven insights for developing effective prevention and mitigation strategies.

Main Methods:

  • Integration of data from the Bangladesh Meteorological Department (BMD) and NASA's Lightning Imaging Sensor (LIS) satellite.
  • Application of Geographic Information Systems (GIS) for spatial analysis and mapping.
  • Utilizing Inverse Distance Weighted (IDW) interpolation to map lightning fatalities, thunderstorm days (TSDs), and lightning flash frequency (LFF).

Main Results:

  • The northeastern regions, particularly the Sylhet division, exhibit the highest incidence of lightning fatalities.
  • Farmers and fishermen are identified as the most vulnerable occupational groups.
  • The monsoon season experiences the highest frequency of lightning-related deaths and injuries.

Conclusions:

  • Combining meteorological and satellite data with GIS provides a robust method for analyzing lightning risks.
  • Targeted interventions in northeastern Bangladesh and during monsoon seasons are crucial for reducing casualties.
  • The findings underscore the need for enhanced public awareness and protective measures for vulnerable communities.