Anne Jefferson
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annejefferson.bsky.social
Anne Jefferson
@annejefferson.bsky.social
Watershed hydrology and geomorphology prof and Lake Champlain Sea Grant Director here for science, the environment, and life as an academic & mom. Formerly @highlyanne.

Posts are personal and do not represent organizations. Reposts are not endorsements.
Check out this great new video on a resilient rain garden that got buried by sediment in the 2023 Vermont flood and today is more beautiful and functional than ever. all-geo.org/jefferson/ne...
September 22, 2025 at 10:07 PM
Ice has ALSO gone out of the Mohawk River in Schenectady between Monday and today.
March 7, 2025 at 10:39 PM
Ice has gone out on the Hudson in Albany while I've been in DC. Here's Monday early afternoon vs now. #Amtrak [Now with correct river. ]
March 7, 2025 at 10:36 PM
This trip has inspired a lot of reflection about the value (or lack thereof) we place on waterfront land. Nothing intrinsically different about the value of shorelines with million+ $ houses and those with piles of trash or salvage yards. Just our human, historical & modern choices.
March 7, 2025 at 10:21 PM
I also ended up backward from DC to NYC, but at least got the water side right. Here's the Susquehanna just before entering Chesapeake Bay.
March 7, 2025 at 10:17 PM
Ice has gone out on the Hudson in Albany while I've been in DC. Here's Monday early afternoon vs now. #Amtrak
March 7, 2025 at 10:10 PM
Currently on Amtrak from Vermont to DC. Told myself I'd get a lot of work done on today's long journey - and I need to. But Vermont scenery - all snow covered streams, pastoralism, and mountains - is very distracting! You can't take the geomorphologist of me.
March 3, 2025 at 4:10 PM
So much snow happening right now. It was snowing hard the whole hour I spent shoveling, and the ruler shows snow depth went from 5.5" to 7" in that time. And it's supposed to ❄️ snow all day. #Vermont
February 16, 2025 at 3:33 PM
I did a thing. It was fun. Thanks to the LCBP Champs for inviting me to join the team. Next year we'll do it again.
February 8, 2025 at 9:08 PM
The snow-loving GeoDog surveys his domain. He'd be even more excited if he knew that there was a chance of 6+ of snow Saturday night.

How do I know? Thanks to the work of @nws.noaa.gov forecasters.
February 7, 2025 at 1:34 PM
Kids had their first snow day of 24-25 today, so how come I'm the only one who went outside (until I forced them out to help me shovel)?

Grateful for the @nws.noaa.gov forecasters who helped superintendents have the info to make the right call on this slippery snowy day.
February 7, 2025 at 1:16 AM
Answering the call from the CDC for the Childhood Immunization Survey, while playing Pandemic and getting to a cure in the nick of time is so much #winning
January 26, 2025 at 7:41 PM
My job is so amazingly cool. Today I got to talk about microplastics and trash with a student and research tech, peek behind the scenes of a renovation in progress at the local science museum, and engage in professional development role playing with staff & partners. Love days like this.
January 24, 2025 at 10:12 PM
Calm.

It's a very January day on Lake Champlain, with ice inside the Burlington break water. The ducks are enjoying the open water created by the bubbler for our research vessel.
January 24, 2025 at 1:40 PM
Are both of these pictures of wolf pups?
January 24, 2025 at 1:10 AM
Is this a llama? Or an alpaca?
Or something else?
January 24, 2025 at 1:10 AM
🏙️ We need to do a better job of including urban and mechanically groomed beaches in larger scale studies of shoreline plastic pollution.
January 15, 2025 at 9:24 PM
🪥 Beach-goers often get blamed for litter problems, but they don't bring pellets to the beach or wash in debris during combined sewer overflows. This matters, especially because of larger concerns about environmental justice in this community.

⬇️ Not the grossest thing we found on the beach
January 15, 2025 at 9:24 PM
🥤 There's a lot of foamed plastic (styrofoam) in the sand. We have questions about where it is coming from and how beach maintenance affects it.

Here's another sample from the top 5 cm of sand.
January 15, 2025 at 9:24 PM
🗑️ Beach grooming does appear to suppress the amount of macroplastic (>25 mm), but we still see more litter in heavier usage areas and periods.
January 15, 2025 at 9:24 PM
🔬 This Cleveland Beach is number 4 in the Great Lakes for microplastics (<5 mm) and number 3 in the Great Lakes for mesoplastics (5-25 mm). The number 1 culprit is plastic production pellets, the raw materials that get turned into our everyday plastic items.

This pic = one 0.5 m x 0.5 m square
January 15, 2025 at 9:24 PM
How about a little geologic cross section to explain why the water is so different between these springs?

I'm hoping to go back this summer and have more time to learn and explore.
December 30, 2024 at 11:11 PM
The State Seal (still, not mineral) spring is the one to drink from, as evidenced by locals filling a large jug (and lack of tufa!). Also, I confirmed it is a 1000 times less foul than the Orenda spring.
December 30, 2024 at 11:08 PM
It makes an impressive tufa waterfall too. With a lot of ice on the trail. You shall not pass.
December 30, 2024 at 11:03 PM
This one flows at an impressive rate with a LOT of bubbles...and tastes horrible.
December 30, 2024 at 11:01 PM