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Related Concept Videos

GIS Software, Hardware, and Sources of GIS Data01:23

GIS Software, Hardware, and Sources of GIS Data

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A Geographic Information System (GIS) combines specialized software and hardware to effectively manage, analyze, and present spatial and related data. GIS software includes critical functionalities such as a user interface for easy navigation, database management tools for handling spatial and attribute data, and data retrieval features for efficient access. Analytical tools transform raw data into insights, while display functions produce maps and reports in various formats for effective...
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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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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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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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Topographic surveying is critical for documenting the Earth's surface, focusing on capturing elevations, slopes, and natural and man-made features. It is essential in construction planning, water resource management, and land-use analysis. The primary outcome of such surveys is a topographic map, which uses contour lines to visually represent the shape and slope of the terrain, providing valuable insights into the landscape's characteristics.Contour lines are fundamental to understanding the...
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Global Climate Change01:50

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Throughout its ~4.5 billion year history, the Earth has experienced periods of warming and cooling. However, the current drastic increase in global temperatures is well outside of the Earth’s cyclic norms, and evidence for human-caused global climate change is compelling. Paleoclimatology, the study of ancient climate conditions, provides ample evidence for human-caused global climate change by comparing recent conditions with those in the past.
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Related Experiment Video

Updated: Sep 24, 2025

Use of Principal Components for Scaling Up Topographic Models to Map Soil Redistribution and Soil Organic Carbon
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Global forest management data for 2015 at a 100 m resolution.

Myroslava Lesiv1, Dmitry Schepaschenko2,3, Marcel Buchhorn4

  • 1International Institute for Applied Systems Analysis, Laxenburg, A-2361, Austria. lesiv@iiasa.ac.at.

Scientific Data
|May 10, 2022
PubMed
Summary

This study introduces the first global forest management map, detailing intact, managed, planted, and plantation forests. This crucial data aids sustainable forest management, restoration, and conservation efforts worldwide.

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Area of Science:

  • Forestry Science
  • Remote Sensing
  • Geographic Information Systems (GIS)

Background:

  • Global forest management data is essential for conservation and sustainable practices.
  • Existing data lacks global consistency and high spatial detail.
  • Understanding forest status is critical for ecosystem services and biodiversity.

Purpose of the Study:

  • To create the first globally consistent, high-resolution forest management map.
  • To provide reference data for various forest management classes.
  • To support sustainable forest management, restoration, and conservation initiatives.

Main Methods:

  • Developed a reference dataset of 226,000 locations via expert and crowdsourcing (Geo-Wiki).
  • Combined reference data with PROBA-V satellite imagery time series.
  • Generated a global 100m resolution map for the year 2015.

Main Results:

  • Achieved accuracies ranging from 58% to 80% for different forest management classes.
  • Mapped prevalent classes: intact, managed, planted, plantation forests, oil palm, and agroforestry.
  • The map provides spatially explicit forest management information at 100m resolution.

Conclusions:

  • The reference dataset and map offer critical insights into global forest ecosystem status.
  • This resource can inform investigations into the value of forests for species and ecosystem services.
  • Enables improved planning for sustainable forest management and conservation globally.