Introducti

Anotacoes

Introduction to Geospatial Data Geospatial data, also called geographic information, is data that is associated with a specific location on the Earth’s surface. It combines information about what something is with where it is. This type of data is essential for understanding spatial relationships, patterns, and trends across geographic areas. Types of Geospatial Data 1. Vector Data – Represents features as points, lines, or polygons. o Points: Specific locations (e.g., a city, a tree). o Lines: Linear features (e.g., roads, rivers). o Polygons: Areas (e.g., lakes, land parcels). 2. Raster Data – Represents information as a grid of cells or pixels, each with a value. o Examples: Satellite images, aerial photos, elevation maps. Sources of Geospatial Data • Remote Sensing: Captures data from satellites or drones. • Global Positioning System (GPS): Provides precise coordinates for locations. • Surveys and Maps: Traditional methods of collecting geographic information. • Crowdsourced Data: Collected from user contributions, e.g., OpenStreetMap. Applications • Urban planning and infrastructure development • Environmental monitoring and conservation • Disaster management and emergency res...