Raster Visualization and DEM File Handling

This video tutorial explains how to access and download global and regional topographic data from OpenTopography. It covers two main methods: using the Data Catalog and the Find Data Map. The tutorial guides users through selecting datasets, downloading data, and choosing output formats. It also explains how to visualize data and submit jobs for processing. Additional resources are available on the OpenTopography YouTube channel and website.

What are the two main methods to access data on OpenTopography?

• Data Catalog and Find Data Map

• Data Search and Data Download

• Data Viewer and Data Export

• Data Analysis and Data Visualization

How can you view the extent of available datasets on the Find Data Map?

• By entering coordinates manually

• By hovering over the dataset

• By clicking on the dataset name

• By selecting a region on the map

What is the resolution of the SRTM GL1 dataset?

• 90 m

• 60 m

• 30 m

• 10 m

Which output format is selected by default for digital elevation models?

• ASCII

• IMG

• GeoTiff

• KMZ

What visualization options are available under Raster Visualization?

• Heatmap, density plot, scatter plot, line graph

• Hillshade, color-relief, slope, aspect, roughness

• Shaded relief, topographic map, satellite view, terrain

• Contour lines, elevation points, 3D view, gradient

What should you do after submitting a job for processing?

• Download the data immediately

• Check your email for a notification

• Close the page immediately

• Wait on the page until the job is complete

How many times do you need to unzip the downloaded DEM file?

• Four times

• Twice

• Once

• Three times

What additional file format can you create for Google Earth?

• PDF

• JPEG

• KMZ

• PNG

What is the purpose of the 'Job Description' section?

• To add a job title and description

• To select the output format

• To choose visualization options

• To enter download coordinates

Where can you find more video tutorials on OpenTopography?

• OpenTopography YouTube channel

• OpenTopography Facebook page

• OpenTopography Twitter account

• OpenTopography Instagram profile