Our Annual AGU First Timers Guide is live! Please share widely!! We look forward to connecting with folks at our Booth #836 with @cuahsi.bsky.social www.agu-h3s.org/post/agunola...

Applications are open to become a member of AGU H3S! See comments for links. Feel free to contact us through our website if you have any questions! www.agu-h3s.org

Applications are open to become a member of AGU H3S! See comments for links. Feel free to contact us through our website if you have any questions! www.agu-h3s.org

HUGE HYPE for our #CatchmentCup2025 WINNER by overwhelming majority: the ONÇA Catchment in Brazil!!! Thank you to everyone who voted for their favorite catchments throughout the past month to make this all possible. Happy last day of Catchment Cup and Happy Halloween 🎃 from AGU H3S! 🎉🎉🎉

The next catchment in the championship round of #CatchmentCup2025 is JAGUARIBE! Located in the state of Ceara, Brazil, the Jaguaribe river basin is comprised of ephemeral rivers which only flow during the rainy season. "Jaguaribe" comes from the... (1/2)

Keep those votes rolling in for #CatchmentCup2025! The first catchment in our championship round is the Onca Catchment located in Brazil! The Onca Catchment is the longest continuous monitoring of an outcrop area of ​​the Guarani Aquifer System from 2000 to the present day... (1/2)

IT'S TIME TO DETERMINE YOUR #CatchmentCup2025 WINNER! Our final two catchments are ONCA and JAGUARIBE (both named after jaguars!)! Keep an eye out for facts about these wonderful catchments posted today and VOTE for your winner at www.agu-h3s.org/rivercup until TOMORROW at 5 pm ET!!!

Check out some facts on the anthropogenic threats facing our FINAL FOUR catchments below 👇👇 and remember to KEEP VOTING at www.agu-h3s.org/rivercup #CatchmentCup2025

We apologize: due to an error with our website, we have not recorded any votes for round 4 of #CatchmentCup2025 submitted today. We will be extending voting until 9 am ET TOMORROW (10/30). Our apologies!

IT'S HERE! Voting is now LIVE to narrow down our FINAL FOUR catchments to the two that will enter the championship round!!! Learn about the human impacts on these catchments and VOTE VOTE VOTE on these amazing catchments at www.agu-h3s.org/rivercup #CatchmentCup2025

Say hello to your FINAL FOUR: Onca, Jaguaribe, McMurdo, and Yangtze!!! Stay tuned till TOMORROW to vote down to the TOP TWO catchments in #CatchmentCup2025 !!!

Only TWO HOURS left to get your votes in to narrow our Great Eight to our FINAL FOUR catchments. Vote at www.agu-h3s.org/rivercup until 5 pm EST!!! #CatchmentCup2025

Happy Friday!! Here are your #CatchmentCup2025 Great Eight!! Its time to NARROW down to the Fabulous Four! You have until Tuesday 10/28 to vote and check out the amazing papers from these sites here: www.agu-h3s.org/rivercup

3 more hours to vote for your favorite human-impacted catchments!! www.agu-h3s.org/rivercup Vote, share, and learn some fun facts!!!

We are back with the last Round #2 Human-impacted Match ups: Yangtze River vs. Waikato River!! Head to our website to check out the latest fun facts and make sure your favorite catchment makes it to the great eight! www.agu-h3s.org/rivercup You have until 5 pm ET tomorrow (10/23) to vote!!

We are back with the last Round #2 Match ups: Heart CZO vs. Bulimba Creek!! Head to our website to check out the latest fun facts and make sure your favorite catchment makes it to the great eight! www.agu-h3s.org/rivercup

Your Round 2 #CatchmentCup2025 Snow-dominated catchments are #HubbardBrook and #McMurdo !!! www.agu-h3s.org/rivercup Stay tuned for the last Round 2 match ups starting TOMORROW at 9 am ET!!

We are back for Round #2 Snow-dominated catchments: www.agu-h3s.org/rivercup The second match up is McMurdo versus Burabay watersheds! You have until tomorrow at noon ET to cast your vote!

We are back for Round #2 Snow-dominated catchments: www.agu-h3s.org/rivercup The first match up contains two research POWERHOUSES! Hubbard Brook versus East River! You have until tomorrow at noon ET to cast your vote!

We are back for Round #2 Snow-dominated catchments: www.agu-h3s.org/rivercup The second match up is McMurdo versus Burabay watersheds! You have until tomorrow at noon ET to cast your vote!

We are back for Round #2 Snow-dominated catchments: www.agu-h3s.org/rivercup The first match up contains two research POWERHOUSES! Hubbard Brook versus East River! You have until tomorrow at noon ET to cast your vote!

let’s hear it for the winners of the first half of Round 2 of #CatchmentCup2025! Your #headwater senifinalists are the ONÇA and WALNUT GULCH! Your #rain-doninated semifinalists are the JAGUARIBE and PANOLA! Be sure to come back here on Monday, 10/20 for the next round: #snow-dominated catchments!

keep those votes coming in!! you have one more hour to vote for your favorite #rain-dominated catchments in round 2 of Catchment Cup 2025!!! head on over to agu-h3s.org/rivercup by 4pm PT vote for the world’s most remarkable catchment!! and come back tomorrow for the winners of Round 2 so far!

For the next matchup of Round 2, we have the Rain-Dominated catchments of the Upper Blue Nile vs Panola Mountain! SEE BELOW for some exciting info about these two catchments, and make sure your vote counts by voting at www.agu-h3s.org/rivercup by 4pm PT TODAY (10/16)

For the first matchup in Round 2: Rain-Dominated catchments, we have Jaguaribe vs Eel River! CHECK THIS THREAD for more fun facts about these important catchments, and don’t forget to vote at www.agu-h3s.org/rivercup by 4pm PT TODAY (10/16)

Up next in round 2 of #CatchmentCup2025, we have the RAIN-DOMINATED catchments! Help your favorite catchment move on to the semifinals by voting at www.agu-h3s.org/rivercup until TONIGHT (10/16) 4 pm PT! Also, stay tuned for some fun facts about these four catchments!

it’s the final countdown!!! one hour remains to get your votes in for your favorite #headwater catchments in round 2 of Catchment Cup 2025!!! head over to agu-h3s.org/rivercup by 4pm PT to cast your vote for the world’s most remarkable headwaters!! winners for the round will be announced at 5pm PT!

For the next matchup of Round 2, we have the Headwater catchments of Fudoji vs Walnut Gulch! SEE BELOW for some exciting info about these two catchments, and make sure your vote counts by voting at www.agu-h3s.org/rivercup by 4pm PT TODAY (10/15)

For the first matchup in Round 2: Headwater catchments, we have Onça vs Jatunhuaycu! CHECK THIS THREAD for more fun facts about these important catchments, and don’t forget to vote at www.agu-h3s.org/rivercup by 4pm PT TODAY (10/15)

It’s time for ROUND 2 of #CatchmentCup2025! Our four #headwater semifinalists are competing for their chance at the title of world’s most remarkable catchment! Cast your votes at www.agu-h3s.org/rivercup until TONIGHT (10/15) 4 pm PT, and come back for some fun facts about these four catchments!

it’s time!! we have all of our round 1 winners! shout-out to the HEART CZO, Bulimba Creek, Yangtze River, and Waikato River for snagging the last four slots in round 2! and don’t forget to come back tomorrow am (10am ET) for the first matchups of #CatchmentCup2025 round 2: #Headwaters!

BREAKING NEWS!! we have a tie and need your help!! the voting window has been extended another hour — vote for your favorites ASAP! it’s now or never, help us break these ties! head to www.agu-h3s.org/rivercup to cast your votes! who will be our human-impacted winners?

it’s the LAST CHANCE to vote in round 1 of #CatchmentCup2025!! make sure your vote counts in helping us find the most remarkable catchment of 2035! If you haven't yet voted for your favorite HUMAN-IMPACTED catchments, vote at www.agu-h3s.org/rivercup until 5 pm EST TODAY!!!

For the FINAL MATCHUP of Round 1, we have the Human-Impacted catchments of the Waikato River vs the Chesapeake Bay! SEE BELOW for some important info about these two catchments, and make sure your vote counts by voting at www.agu-h3s.org/rivercup by 5pm ET tomorrow (10/14)

Our next matchup in Round 1 Human-Impacted catchments is between the Yangtze River and Scioto River! Learn more about these two catchments in this thread, and VOTE VOTE VOTE at www.agu-h3s.org/rivercup by 5pm ET tomorrow (10/14)

For our next matchup in Round 1 Human-Impacted catchments, we have Bulimba Creek vs the Po River! Check out some cool info about these two catchments below, and keep those votes rolling in at www.agu-h3s.org/rivercup by 5pm ET tomorrow (10/14)

For the first matchup in Round 1: Human-Impacted catchments, we have Minneapolis-St. Paul LTER vs the HEART CZO! CHECK THIS THREAD for fun facts about these critical catchments, and don’t forget to vote at www.agu-h3s.org/rivercup by 5pm ET tomorrow (10/14)

Welcome back to another round of #CatchmentCup2025! In our final matchups of round 1, eight HUMAN-IMPACTED catchments will compete head to head! Cast your votes at www.agu-h3s.org/rivercup until TOMORROW (10/14) 5 pm ET, and stay tuned for facts posted throughout the day about these catchments!

Drumroll please.....the winners of round 1's snow-dominated catchments are..... HUBBARD BROOK, EAST RIVER, BURABAY, and MCMURDO!!! Some of these matchups were close so keep those votes coming for human-dominated catchments starting next week, 10/13!!! #CatchmentCup2025

Every vote counts in #CatchmentCup2025 on our quest to find the most remarkable catchment in the world this year! If you haven't yet voted for your favorite SNOW-DOMINATED catchments, vote at www.agu-h3s.org/rivercup until 5 pm EST TODAY!!!

AND FINALLY: the fourth matchup of snow-dominated catchments in Round 1: McMurdo vs Tapado! VOTE VOTE VOTE!!! www.agu-h3s.org/rivercup #CatchmentCup2025

Third up for our snow-dominated catchment matchups in Round 1 of #CatchmentCup2025 : Krycklan vs Burabay! Keep those votes coming at www.agu-h3s.org/rivercup and see below for facts!!!

Keep those votes rolling in! The second head-to-head for Round 1's snow-dominated catchments is...East River vs Oldman! Scroll to the thread below for facts on these catchments! And VOTE VOTE VOTE!!! www.agu-h3s.org/rivercup

Our first matchup for Round 1's snow-dominated catchments is Hubbard Brook versus Mogot! SEE BELOW for facts on these remarkable catchments and don't forget to VOTE at www.agu-h3s.org/rivercup until 5 pm EST tomorrrow!

Welcome back to another set of catchments in #CatchmentCup2025 ! Today and tomorrow we will be facing off 8 amazing SNOW-DOMINATED catchments from around the globe. Vote at: www.agu-h3s.org/rivercup until TOMORROW (10/9) by 5 pm EST and keep an eye out for facts posted today about these catchments!

The votes are in!!! Check out your Round 1 #CatchmentCup2025 Rain-dominated WINNERS!!! See you TOMORROW for the next round: snow-dominated catchments!

You only have 3 HOURS LEFT to vote for your favorite RAIN-DOMINATED CATCHMENTS in #CatchmentCup2025 ! Keep those votes coming to decide what the most amazing catchment in the world is! Winners will be posted by EOD TODAY! VOTE HERE: www.agu-h3s.org/rivercup

The last two rain-dominated catchments in Round 1 of #CatchmentCup2025 : Panola Mountain vs Piabanha You have until 5 pm EST TOMORROW (10/7) to vote at: www.agu-h3s.org/rivercup Scroll below for facts!

Rain-dominated Round 1: Aguima Catchment vs Upper Blue Nile Catchment The race is close at www.agu-h3s.org/rivercup ! Visit the site to cast your vote and visit the thread below for facts about these catchments!

Rain-dominated Round 1: Re Della Pietra Catchment vs Eel River Catchment Keep those votes coming at www.agu-h3s.org/rivercup !!! See below for facts: