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YouTube

Exploring GLO-30: A Global Digital Surface Model of Earth's Terrain

Roberts Geospatial Engineering via YouTube

Overview

Learn about the GLO-30 Digital Surface Model (DSM) in this 29-minute video exploring Earth's terrain features through high-resolution satellite data. Discover how this free global terrain dataset, derived from WorldDEM and TanDEM-X satellite mission data (2011-2015), provides 30-meter resolution coverage of ground surfaces, vegetation, buildings, and infrastructure. Follow along as various geographical locations are examined using ProRaster Scientific software, including detailed views of Hawaii's landscapes, USA's West Coast, Alaskan terrain, African regions, and notable landmarks like Mt. Everest and New Zealand's glaciers. Gain insights into the technical aspects of rendering algorithms, water body mask implementations, and practical applications of this high-quality terrain data. Explore the merged collection of 26,474 DSM tiles in MRR format, along with classified rasters for Water Body, Filling, and Editing masks, while understanding how to access and utilize this valuable geographical resource through the ESA Copernicus Data Service Portal.

Syllabus

Introduction
Rendering algorithm
Hawaii
Trees along roads and fencelines
USA West Coast
Alaska
North Africa
Niger
South Africa
Arizona
Pilbara
Grasburg
Water Body Mask issues
Lord Howe Island or lack thereof
Balls Pyramid excised!
Mt Everest
Summary
Mt Taranaki
New Zealand glaciers
Denali glaciers
Greenland glaciers
Getting confused about measuring distance
India

Taught by

Roberts Geospatial Engineering

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