GregCocks · @GregCocks
233 followers · 291 posts · Server techhub.social

What Is A Digital Elevation Model (DEM)?- A Practical Guide
--
equatorstudios.com/what-is-a-d <-- shared tutorial
--
“A Digital Elevation Model (DEM) is a digital cartographic dataset that represents a continuous topographic elevation surface through a series of cells. Each cell represents the elevation (Z) of a feature at its location (X and Y). Digital Elevation Models are a “bare earth” representation because they only contain information about the elevation of geological (ground) features, such as valleys, mountains, and landslides, to name a few. They do not include any elevation data concerning non-ground features, such as vegetation or buildings...”

#gis #spatial #mapping #elevation #spatialdata #spatialanalysis #data #digital #dem #digitalelevationmodel #lidar #remotesensing #model #modeling #ifsar #onlinelearning #onlinelessons #tutorial #landform #bathymetry #geomorphology #geology #landforms

Last updated 1 year ago

Robert Pace · @_QuePID_
7 followers · 11 posts · Server ecoevo.social

My latest 3d print showing a 300 million year old meteor crater located in Bell County Kentucky. The city of Middlesboro is located in the crater.

#3dprinting #geoscience #digitalelevationmodel

Last updated 2 years ago

IMBE · @imbe
379 followers · 544 posts · Server ecoevo.social
AnthropoceneMan · @Anthro
299 followers · 762 posts · Server universeodon.com

Does anyone know of any concrete ways the old USGS scribed map products or their derivatives are used today?

For a while, the line work was turned into raster products, I believe, and then into digital elevation models?

Do any part of of the old topo map products still have use or relevance, or have they seen their last hurrahs?

#maps #gis #cartography #digitalelevationmodel #topography

Last updated 2 years ago