The Portland, Oregon Metro office has a collection of elevation datasets with different resolutions. Using this data, they want to create a variety of illustrations of the surrounding area (like hillshades) that they can share with their community. Help the GIS office use the Managing Elevation workflow geoprocessing tools to visualize and analyze the Portland landscape. The Try It Out section will cover these tasks:
- Walk you through how to set up your workflow tools
- Demonstrate how to use the tools in both ArcGIS Pro and command line environments using sample data from Portland
- Show you how to adapt the workflow to your own data
About the sample data
Try out this workflow using the provided sample elevation data depicting the region around Portland, Oregon, in the northwestern United States. Provided datasets are described in the table below.
| Data identifier | Approx. pixel size (m) | Source | Description |
|---|---|---|---|
Portland LiDAR | 0.8 | sample of Portland, Oregon metro area derived from LIDAR | |
USGS Click | 2 | sample from USGS "CLICK" LIDAR holdings in LAS format | |
NED 1/9 Arcsecond | 3.1 | sample of USGS 1/9 arcsecond product, originally derived from LIDAR | |
NED 1/3 Arcsecond | 10 | USGS 1/3 arcsecond product | |
NED 1 Arcsecond | 31 | sUSGS 1 arcsecond product | |
SRTM | 93 | subset from the Shuttle Radar Topography Mission | |
GMTED2010 | 232 | subset from the USGS GMTED | |
ETOPO | 928 | subset from the USGS ETOPO bathymetric data | |
EGM2008 geoid | 4638 | worldwide geoid | |
World Background Zero | 111,300 | worldwide low resolutions raster with value 0 everywhere, used to fill NoData areas |
In the next section, set up the workflow tools and sample data to get started managing elevation datasets.