GIS Fundamentals – Understanding and manipulating elevation data

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Elevation data can come in the form of point (e.g. from LiDAR), digital elevation model (DEM), or triangulated irregular network (TIN). In this workshop we will focus on DEM and TIN. We will learn about each model and related data structure, their relative strengths, the kind of information they provide, and how to obtain downstream derived information. This is a lecture-style workshop and the primary focus will be about understanding the two models. However, we will also see examples in ArcGIS or QGIS

Participants should know GIS and be familiar with vector and raster data.

GIS Fundamentals – Height and Vertical Datum

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Understanding how heights are measured and recorded in GIS systems are essential for many applied tasks such as modeling flood risk due to sea level rise. In this workshop we will understand vertical datums, the concept of height, and what do terms like orthometric height and ellipsoid height mean. This will be a lecture-style workshop with a focus on conceptual details.

Participants should know basic GIS and should be familiar with horizontal datums.