Ben Letcher
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bletcher.bsky.social
Ben Letcher
@bletcher.bsky.social
I study small fish in small streams and co-lead a team that makes interactive data viz tools to help make complex data and models easier to understand: www.usgs.gov/apps/ecosheds and now westbrookdataviz.org
Great #handsoff turnout in Boston!
April 5, 2025 at 6:30 PM
I love the things we see in streams in the Flow Photo Explorer www.usgs.gov/apps/ecoshed.... Here, in Nevada, a tumbleweed hangs around from Feb to May, finally getting pushed out by some high flow. In case you were wondering, it showed up between 11:15 and 11:30 pm on Feb 4 :)

#flowphotoexplorer
December 12, 2024 at 2:10 PM
With hundreds of cameras and millions of photos in our Flow Photos Explorer, we get some cool wildlife pix (screened by megadetector). See the owl?
Nerd alert - we can also tell you within 15 min when the tree top of the stump the owl is sitting on fell. That's got to be valuable to someone, right?
November 27, 2024 at 8:45 PM
And here are 3 streams in Shenandoah NP during hurricane Helene - yikes!
November 22, 2024 at 12:15 AM
What happens to small streams during a hurricane? Here are time-lapse photos (every 15 min) from our Flow Photos Explorer of 3 sites in PA during Helene. Shocking how high they get and that any fish can survive. They are so flashy, we might even have missed the peak. [gif by Phillip Goodling]
November 22, 2024 at 12:12 AM
The number of images in our Flow Photo Explorer is going up, up, up! It uses trail cameras and machine learning to estimate stream flow, especially in small streams. Anyone can use it!

Check it out: www.usgs.gov/apps/ecoshed...
November 21, 2024 at 6:28 PM