From the course: Hands-On PostgreSQL Project: Spatial Data Science
Join today to access over 24,800 courses taught by industry experts.
Understanding coordinate systems in geospatial analysis
From the course: Hands-On PostgreSQL Project: Spatial Data Science
Understanding coordinate systems in geospatial analysis
- [Instructor] Maps are merely models of the Earth's surface, and all models are wrong. Before we dive into the technical aspects of the project, there are a few foundational concepts in geospatial data science that are critical to cover. Coordinates and the coordinate systems are at the heart of geospatial data science, but can be often overlooked. Understanding how cryptographers represent Earth's surface on a flat map and how to choose the right coordinate system for your project is key to accurate spatial analysis. To start, it's important to understand that the Earth is not a perfect sphere. It's actually an ellipsoid or geoid. These are just mathematical approximations that account for the slight bulging around the equator. The way we represent this ellipsoid on a two-dimensional map has major implications for how accurate our spatial data will be. The ellipsoid is a smooth, simplified shape of the earth. It's often used in mapping because it's easier to work with…
Download courses and learn on the go
Watch courses on your mobile device without an internet connection. Download courses using your iOS or Android LinkedIn Learning app.
Contents
-
-
-
Understanding the basics of geospatial data science3m 49s
-
(Locked)
Overview of current geospatial technology landscape5m 8s
-
(Locked)
Understanding coordinate systems in geospatial analysis5m 12s
-
(Locked)
Introduction to vector data for spatial analysis5m 32s
-
(Locked)
Introduction to raster data for spatial analysis4m 36s
-
-
-
-
-
-