Joe Levy

@AGU_H3S I love seeing the Onyx River up on Team Frozen Rivers, but its thumbnail on the voting page is almost assuredly a mis-used picture of a supraglacial stream (in Greenland?). The Onyx is sand and gravel bedded. Here's some snaps from a helo of growing point bars in the Onyx.

it's the second half of Round 2 of #RiverCup2024, and we have 2 matchups from the #DryRivers and 2 from the #FrozenRivers Learn the impacts of and threats to the 8 rivers below, and vote for your favorites at agu-h3s.org/rivercup Also see the results of the last matches here

@seismo_amy Love it! As a warm-up, I sometimes ask students to make a 1D model like this using different colored masking tape. It's fascinating to see what preconceived notions folks have about the thickness of Earth's layers.

1: 1million scale model of the Earth for teaching this semester!

@jason_loxton @FossilLocator @phaneritic The dinosaur tracks outside of Kanab, UT are small, but quite nice, as is Coral Pink Sand Dunes if you're looking to do a little sand-sledding. It's a little bit south of your route, but the old Verde Valley salt mine is amazing: azgs.arizona.edu/photo/verde-va…

Considering road trip that does something very roughly like this in fall. Obviously, want to visit classics (Moab, Petrified Forest, etc.), but what other geological stops would you say are must sees? Bonus for "secret"/off beaten track or fossils. @FossilLocator @phaneritic

In the end, we settled on cardboard boxes by sampling day. I had been hoping to use CD boxes, but those are hard to come by these days for some reason….

Hey team #soils & #sediments, anyone have a favorite sample filing system for whirl-packed samples? Mostly, I organize by project year in drawers, but with bigger projects, I need to sub-divide and catalog more precisely. Anyone got a favorite sample box/cabinet/organizer?

@the59thStBridge This is one I had to look up. Etymologically, at least, meteor just means a thing lofted way up in the sky. So a meteoric rise is a lofty achievement. A pole vaulter could have a meteoric rise (strictly) followed by a meteoric plunge (observationally).

Pet-peeve phrases: “Meteoric rise.” Meteors plunge towards the earth, burning up as they traverse the atmosphere. Not an apt description for, say, a marathon runner. Pole vaulter, maybe.

Sure, my radiometer fits on a drone and the microwave data can be processed on a laptop from my couch. That just makes it more convenient to collect and process the measurements. Njoku and Kong is an experiment with style and vision! doi.org/10.1029/JB082i…

I like to think I do pretty cool research & that the figures in my papers are compelling. But then I see something like this (from Njoku & Kong, 1977, JGR) & I am reminded that A) We are standing on the shoulders of giants, & B) the retro future is cooler than the real future.

@BFThomas_Water @USGS_Water This question led me down the wormhole of different fruit densities. From this study, it looks like apples and oranges are in a near tie. I'd vote oranges over apples, just on visibility. Lemons will float a little lower in the water. tandfonline.com/doi/pdf/10.108…

@USGS_Water Don’t oranges work best? They sink a bit below the surface to get a better representation of stream velocities.

We're hydrologists, of course we use table tennis balls to measure discharge. We’re going back to basics. But we really can calculate discharge this way! One of our hydrologists describes it like this:

@drcrater @westernuEarth @westernuScience There's some neat rock glaciers / dead DCGs up in the La Sals that could make a nice analog for the end game of ice-assisted rock movement on Mars. Only a little bit dicey to get up to on the forest roads.

After a morning off in Moab (after yesterday’s epic 21 km hike into Upheaval Dome), we checked out some new potential stops in the La Sal Mountains. And then one of my favorite campsites of the trip in Castle Valley NE of Moab #PS9605 #fieldschool @westernuEarth @westernuScience @westernuIntl

@drcrater @westernuEarth @westernuSpace May 23, 2019 on a Colgate U trip just south of Grand Canyon. Spring comes late to northern Arizona!

Well, that was a bit of an adventure for the first night of our Planetary Surface Processes Field School!!! Setting up tents in the snow at the Grand Canyon 🤪 #PS9605 @westernuEarth @westernuSpace

@Geology_History How cool! Ayrton's ripple paper is here: royalsocietypublishing.org/doi/pdf/10.109… It's a wild example of 19th c. lab MacGuyvering. Come for the soap-dish mini-flume (initial experiments); stay for vortex visualization using ground pepper! An experimental and observational triumph!

April 28, 1854, birthday of British engineer, mathematician, physicist, & inventor Hertha Marks Ayrton. In a 1904 paper she explained how currents can form sand ripples 🌊 en.wikipedia.org/wiki/Hertha_Ay…

Recycling + crushed glass sand manufacturing + wetlands restoration. What’s not to love? Maybe a lot? This is certainly gas and diesel heavy. And it is literally using energy to turn glass back into sand. But it is definitely diverting waste. Intriguing! nytimes.com/2024/04/27/cli…

@queenofpeat One of the most satisfying things I did on sabbatical was to record some stories that tell the story behind my research (& posted them at theskua.org). I'm way far behind in keeping it up, but this I agree we all need to try to explain our science in human ways.

Stuck in my mind today - All of human life revolves around storytelling and narrative. When will scientists embrace this?

@planetaryben @NWS I love the result, but have very mixed feelings about the visualization from NWS. I get that blue = blue sky, but having increasing chroma for a decreasing quantity (cloudiness) makes my #datavis brain hurt just a little.

Cloud cover forecast for the total solar #eclipse has improved in recent days for a large swath of the Midwest. Upstate NY and New England continue to look clear. @NWS

The best thing about learning the #geosciences in the field is that it helps put everything in perspective. Students on the ⁦@colgateuniv⁩ Wales Study Group exploring Eryri (Snowdon) yesterday.

Hey, I know that guy! @nepetro, that is. Not the Moon. The Moon is unknowable. Well, it's really hard to get to know. nytimes.com/2024/03/24/sci…

@drlperezdiaz Order in! Is a Devonian travel poster in the works? Asking for a friend/armored-fish.

@ThePlanetaryGuy @Int_Machines So, is there a term for a semi-soft landing on the Moon? A Roquefort landing? A Gouda landing?

Into soil brines, chemical weathering, #Antarctica, or the future of soil development at the poles? Check out @colgateuniv alum Izzy King's new work just out in GSA Bulletin! bit.ly/49OIiaf