Catastrophe and Cartography - Visualizing Ice Age Floods

The National Map Viewer is one of the best resources for visualizing the landscapes of North America, and how they have changed since the end of the last Ice Age

Why "catastrophe" is relevant to ASTROPHOTOGRAPHY

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Peter Zelinka

PeterZelinka

February 19, 2022

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Additional Information

Related links, images and relevant information involving this howtube video.

Since we are covering numerous controversial topics in this video, I wanted to be sure and include lots of links for you to do your own research on.

One of the most important points to keep in mind though, is that water and erosion are scale-invariant. In other words we can see the same shapes and patterns, but on radically different scales. The small current ripples that you see along the creek can be found at West Bar Ripples in Washington, but these are orders-of-magnitude larger!

Here's the link for the USGS National Map Viewer. Remember, you want the "3DEP - Elevation Tinted Hillshade" filter:

(Be sure to right-click and "Open in New Tab" for each link below)

https://apps.nationalmap.gov/viewer/

Randall Carlson YouTube links:

Drumlins:

https://youtu.be/QKlmuEyBw3Y - Ep. 47 with Jerome Lesemann

https://youtu.be/NWlyfHtQRgs - Ep. 67 with Jerome Lesemann

https://youtu.be/30MUCh4s7oE - Ep. 53 Finger Lakes

Back-Floods:

https://youtu.be/ffUvklVGC4g - Ep. 74 Opposite Flows

https://youtu.be/lIGBIhOv9xU - Ep. 65 Back-Floods

Ice Dams:

https://youtu.be/QHF0sFpF4yA - Ep. 72 Glacier Dam Problems

https://youtu.be/VQq0mzeLKOI - Ep. 71 Pressure & Glacial Dams