Sign in

Department of Earth and Planetary Sciences at Dartmouth

@dartmouthears.bsky.social
1.8K followers 32 following 47 posts

The Department of Earth and Planetary Sciences at Dartmouth earthsciences.dartmouth.edu

PostsRepliesMedia
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 30/09/2026
A recent study by EAPS alum Janelle Wargo, Guarini ’25, along with Geography professors Justin Manking & Jonathan Winter, shows that in the Northeast, increased precipitation outpaces water loss from warmer temperatures, leading to a decrease in Northeastern droughts. vnews.com/2026/09/22/d...
vnews.com
Climate change made Northeast droughts less intense - Valley News
A Dartmouth study shows climate change has caused fewer and less intense droughts in the Northeast due to increased precipitation.
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 29/09/2026
Using NH as a classroom! Last week, students in the EAPS 18 (Environmental Earth Science) lab run by Dr. Vivian Taylor went out to Storrs Pond to measure dissolved oxygen and collect sediment in sediment traps to investigate the biological pump and to see if Storrs Pond is a carbon flux or sink!
021
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 28/09/2026
AGU awards just dropped, and Dr. Sarah Slotznick has received the Takesi Nagata Early Career Award!! The award is presented to an early career scientist who has excelled in research and service to the fields of geomagnetism, paleomagnetism, and electromagnetism. (Link: www.agu.org/honors-home/...)
020
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 25/09/2026
Postdoc Appreciation Week continues with Dr. Elhanan Harel, a new postdoc who recently joined Marisa Palucis's group. His research focuses on rivers and flow systems. See his last paper here: (doi.org/10.1073/pnas...)
152
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 24/09/2026
Postdoc Appreciation Week continues with Dr. Shanti Penprase! Shanti is a Guarini Dean’s Postdoctoral Fellow, and is interested in how changes in climate, glaciation, and land use impact the morphology of landscapes. See more about Shanti here: spenprase.github.io
012
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 23/09/2026
Postdoc Appreciation Week continues with Dr. Thom Chaffee! Thom’s research focuses on rock and mineral magnetism in exotic natural materials. See more here: guarinigrad.dartmouth.edu/blog/2026/09...
guarinigrad.dartmouth.edu
Postdoc Thom Chaffee: Magnetic Minerals for Clean Energy
Thom Chaffee is a postdoc in the Department of Earth and Planetary Sciences and recipient of the department’s Elizabeth L. Drake Award for outstanding service. Chaffee was also awarded the Po…
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 22/09/2026
It’s Postdoc Appreciation Week! Today we are spotlighting Dr. Johan "Yoshi" Gilchrist, a geophysist joining us this fall under the Joseph B. Obering Post-Doctoral Fellowship in Earth Sciences. Here he is sampling the 7.7 ka Mazama eruption deposit at Crater Lake, OR.
031
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 15/09/2026
Congratulations to the AY 25-26 recipient of the A. Lincoln Washburn Award for outstanding mentoring. This year the recipient is research scientist Dr. Justin Stroup.
021
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 14/09/2026
Students in the field! EAPS PhD student Lucille Baker Stahl found some rhythmites (likely varves), channel fill deposits, and one sequence that seems to capture the varves, channel and modern soil formation on cutbanks while kayaking on the Magalloway river up by Errol, NH.
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 08/09/2026
Congratulations to the AY 25-26 Recipient of the Elizabeth L. Drake Award for outstanding department service. This year the recipient is postdoc Dr. Thom Chaffee.
000
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 22/07/2026
Congratulations to the following EAPS faculty who were recently recognized by the Interim Dean of Faculty John Carey, and from the centers and institutes within the Arts and Sciences! Read more here: fas.dartmouth.edu/news/2026/07...
030
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 21/07/2026
Congratulations to the AY 25-26 Recipients of the John A. Ebers 1961 Memorial Prize Graduate Award for Outstanding graduate student TA. This year the recipients are Reina L. Harding and Jannitta Yao.
040
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 20/07/2026
Congratulations to the AY 25-26 Recipients of the Earle S. Lenker 1956 Graduate Award for Outstanding academic achievement by a graduate student. This year the recipients are Mansa Krishna and Derek Pickell.
031
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 07/07/2026
Dartmouth last month hosted the first international academic conference focused on how artificial intelligence can accelerate scientific discovery in glaciology. (Photo by Sophia Scull ’25) Read more here: home.dartmouth.edu/news/2026/07...
000
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 30/06/2026
Congratulations to the AY 25-26 Recipients of the EARS Faculty Recognition Award for an outstanding publication by a graduate student! This year the recipients are Alexander (Alec) Getraer, and Jacob I. Chalif. See Alec’s paper: doi.org/10.1130/G531... See Jacob’s paper: doi.org/10.1029/2024...
030
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 26/06/2026
Research published in Nature, co-authored by Professor of Earth and Planetary Science Mathieu Morlighem, looks at the predictability of Antarctic ice loss and what this means for sea-level rise projections. See more here: engineering.dartmouth.edu/news/scienti...
engineering.dartmouth.edu
Scientists Agree on 30-Year Window of Opportunity to Prepare for…
Research published in Nature, co-authored by Dartmouth Engineering Professor Hélène Seroussi, identifies a window of opportunity critical to strategic…
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 18/06/2026
Please join us in honoring the retirement of Leslie Sonder! Leslie has been a key piece of the faculty in our department since she arrived at Dartmouth in 1988, previously serving as department chair and as the undergraduate major advisor, among her other accomplishments.r.
fas.dartmouth.edu
Honoring Our Retiring Faculty | Faculty of Arts and Sciences
Professors Jamie Horton, Thomas Jack, Leslie Sonder, and Jeffrey Taube shaped students, colleagues, and their fields in ways that will long outlast their time at Dartmouth.
020
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 16/06/2026
Congratulations to the AY 25-26 Recipients of the Gary B. Malone 1970 Memorial Award for highly engaged graduate student! This year the recipients are George (Geordi) Geier, Alexander (Alec) Getraer, and Benjamin (Benjy) Getraer.
040
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 12/06/2026
Congratulations to the AY 25-26 Recipients of the Doug Bangs 1980 Memorial Award in Earth Sciences for Outstanding Stretchie! This year the recipients are Lang Burgess (Photos 1-5), Emma Carpenter (Photos 1-2, 6-8) , and Marina Rodriguez (Photos 1-2, 9-10).
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 11/06/2026
Congratulations to the AY 25-26 Recipients of the Earle S. Lenker 1956 Undergraduate Award for Outstanding junior major in the classroom! This year the recipients are Cooper Hartshorn (Photos 1,3), Addie Winship (Photos 2,3), and Jeremy Wang (Photo 4).
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 10/06/2026
Congratulations to the AY 25-26 Recipients of the Earle S. Lenker 1956 Undergraduate Award for Outstanding junior major in the field! This year the recipients are Gary Ding (Photo 1), Siri Bjerke (Photo 2), and Willie Kellogg (Photo 3).
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 09/06/2026
Congratulations to the AY 25-26 Recipients of the Estwing Prize! This award is given annually to students for being great Morale builders in the field (on The Stretch). This year the recipients are Dankweli K. Mwaka (Photos 1-3), and Martin C. Skacel (Photo 4).
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 08/06/2026
Congratulations to the AY 25-26 Recipients of the John A. Ebers 1961 Memorial Prize - Undergraduate Award! This award is given annually to Outstanding Senior Major students. This year the recipients (ing 1; L to R) are Adrianna J. Drindak, Hannah C. Clark (img 2), and Ryan E. Glenn (img 3)
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 04/06/2026
Thank you to everyone who attended our EAPS Annual End-of-Year Picnic! We had a beautiful evening with great food, hacky sacking, and a visit from a porcupine! Congratulations to all of the 25-26 EARS department award winners, and congratulations to all on completing this academic year!
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 03/06/2026
Yesterday was the Earth & Planetary Science 2026 Senior Honor Thesis Presentations, where twelve of our EAPS undergrads presented the culmination of the research studies they have completed this year. Special thanks to Leslie Sonder, the EAPS Undergraduate Advisor, for hosting this evening!
031
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 29/05/2026
Associate Professor of EAPS Justin Strauss was recently quoted in Earth.com: “Given our understanding of the regional geology in northwestern Canada, there is great potential here to revisit our understanding of Ediacaran Earth history,”. See the article here: www.earth.com/news/canadia...
031
Reposted by Department of Earth and Planetary Sciences at Dartmouth
Dartmouth Arts and Sciences @dartmouthartsci.bsky.social · 18/05/2026
As of this summer, @dartmouthears.bsky.social will be known as the Department of Earth and Planetary Sciences. “We’ve been building toward this for about 20 years, and the research has genuinely grown to span both Earth and other planetary bodies,” says department chair Meredith Kelly.
fas.dartmouth.edu
A New Name for Earth Sciences | Faculty of Arts and Sciences
Dartmouth’s growing research program in planetary science will now have a name to match.
001
Reposted by Department of Earth and Planetary Sciences at Dartmouth
Dartmouth Arts and Sciences @dartmouthartsci.bsky.social · 19/05/2026
.@dartmouthears.bsky.social professor Robert Hawley was named director of the Dartmouth Center for the Advancement of Learning, which enriches teaching and learning on campus through programs and resources for anyone engaged in teaching at #Dartmouth.
fas.dartmouth.edu
Earth Sciences Professor Named DCAL Director | Faculty of Arts and Sciences
Robert Hawley will lead the Dartmouth Center for the Advancement of Learning.
001
Reposted by Department of Earth and Planetary Sciences at Dartmouth
Dartmouth Arts and Sciences @dartmouthartsci.bsky.social · 28/05/2026
"There is great potential here to revisit our understanding of Ediacaran Earth history.” @dartmouthears.bsky.social professor Justin Strauss co-led a study that found a diverse deposit of Ediacaran fossils in Northwestern Canada, suggesting complex animals evolved earlier than previously understood.
livescience.com
Complex animals evolved up to 10 million years earlier than previously thought, fossil discovery shows
Trove of fossils discovered in Canada sheds light on "when life first became large, complex and unmistakenly animal."
011
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 28/05/2026
Today many of our EAPS undergrads presented their work at the Wetterhahn Science Symposium. Notably, two of our undergrads won 2nd & 3rd place for their Senior Honors Theses! Congratulations to Caleb Saks and Jacob Schnell! Read more on the Wetterhahn here: students.dartmouth.edu/surfd/news-e...
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 26/05/2026
This term, EAPS undergraduate ‘Ale’aokalani Kahele (‘27) has worked on a project to create a guide for future Stretchies detailing the history of the different tribal lands the EAPS off-campus field program, ‘The Stretch’, goes through and more! See more here: alea-stretch-seven.vercel.app
010
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 21/05/2026
Students in the field! Students in the EARS 1 intro lab course spent the afternoon learning how to gauge the stream velocity of Mink Brook in Etna, NH by measuring stream transect, depth, and velocity from Dr. Justin Stroup.
000
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 20/05/2026
Please join us in congratulating C. Brenhin Keller who has been promoted to the rank of Associate Professor with tenure! Read more about Brenhin’s work here: brenhinkeller.github.io
020
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 14/05/2026
A New Name for Earth Sciences! Starting this summer, Dartmouth’s Department of Earth Sciences will be known as the Department of Earth and Planetary Sciences (EAPS). Dartmouth’s growing research program in planetary science will now have a name to match! Read more: fas.dartmouth.edu/news/2026/05...
fas.dartmouth.edu
A New Name for Earth Sciences | Faculty of Arts and Sciences
Dartmouth’s growing research program in planetary science will now have a name to match.
040
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 13/05/2026
Congratulations to Professor of Earth Sciences Robert (Bob) Hawley, who has been named director of the Dartmouth Center for the Advancement of Learning, effective July 1! As Bob says “Teaching and learning are, by their very nature, a human interaction”. home.dartmouth.edu/news/2026/05...
home.dartmouth.edu
Earth Sciences Professor Named DCAL Director | Dartmouth
130
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 11/05/2026
Congratulations, Dr. Joel Wilner, on a successful PhD defense! Joel’s dissertation is titled “Pushing the Boundary: Modeling and Data-Driven Insights into Paleoclimate and Erosion at Glacial Margins”
011
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 11/05/2026
Congratulations, Lauren Morrison, on a successful Master’s defense! Lauren’s thesis is titled “Investigating the preservation of goethite through magnetic techniques”.
030
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 27/04/2026
Congratulations, Dr. Jiawen Li, on a successful PhD defense! Jiawen’s dissertation is titled “Tracing Microbial Methanogenesis and Methane Oxidation with Clumped Isotopologue Compositions of Methane”
120
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 10/02/2026
Jacob Chalif, a graduate student in EAPS, was featured in an article commenting on his recently published study showing that "waviness" in the polar jet stream that brings Arctic-like conditions farther south are not historically uncommon. Read more at www.climate.us/news-and-fea...
020
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 23/01/2026
Congratulations to EAPS Assistant Professor Sarah Slotznick for receiving the Department of Energy Early Career Research Program Award for 2025! The prestigious award provides long-term support for the research of outstanding early-career scientists. See more at: fas.dartmouth.edu/news/2026/01...
010
Reposted by Department of Earth and Planetary Sciences at Dartmouth
Shersingh Joseph Tumber-Dávila @josephtumber.bsky.social · 05/11/2025
New Assistant Professor Posting: @dartmouthears.bsky.social @dartmouthartsci.bsky.social Stable Isotope Biogeochemistry and/or Geobiology apply.interfolio.com/176517 🧪🌎
screenshot of job ad from link on post
097
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 28/10/2025
We are looking to hire a full-time tenure-track Assistant Professor in the general areas of stable isotope biogeochemistry and/or geobiology! For more information and to apply see apply.interfolio.com/176517 -- review begins November 15!
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
034
Reposted by Department of Earth and Planetary Sciences at Dartmouth
tarfalaresstation.bsky.social @tarfalaresstation.bsky.social · 11/09/2025
New paper out, on #Ryder #glacier #NorthernGreenland #icesheetmodelling. Great collaboration @bolincentre.bsky.social @stockholm-uni.bsky.social @uio.no @dartmouthears.bsky.social #jifresse tc.copernicus.org/articles/19/.... More about the swedish glaciers and their #massbalance 2024/2025 soon 😀
tc.copernicus.org
Simulating the Holocene evolution of Ryder Glacier, North Greenland
Abstract. The Greenland Ice Sheet's negative mass balance is driven by a sensitivity to a warming atmosphere and ocean. The fidelity of ice-sheet models in accounting for ice–ocean interaction is inhe...
043
Reposted by Department of Earth and Planetary Sciences at Dartmouth
Dartmouth Arts and Sciences @dartmouthartsci.bsky.social · 27/08/2025
"The biggest (misconception) in general is people think that the mantle is made of magma, or the mantle is molten or liquid.” Earth sciences professor @brenhinkeller.bsky.social discusses misunderstandings about the Earth’s structure with Indy100.
indy100.com
You probably don’t know this about the Earth – and museums get it wrong too
So much is made of scientific discoveries in outer space, as we try to broaden our horizons and explore the surface of Mars, but in reality, many of us don’t know much about things right below our fee...
153
Reposted by Department of Earth and Planetary Sciences at Dartmouth
Evgenii Salganik @salganik.bsky.social · 28/03/2025
Huge thanks to Don Perovich, Chris Polashenski, Cameron Planck, and others for leading and maintaining CRREL, Dartmouth @dartmouthears.bsky.social, and Cryosphere Innovation www.cryosphereinnovation.com ice mass balance buoy programs.
cryosphereinnovation.com
Sea Ice Data Repository | View and Download
Download up-to-date results from the world's largest repository of seasonal sea ice thickness data.
121
Reposted by Department of Earth and Planetary Sciences at Dartmouth
Justin Richardson @soilbiogeochemist.bsky.social · 28/01/2025
With some much terrible news, I want to share something positive. This is a spodosol my students made for our soils class back @dartmouthears.bsky.social featuring O-reo horizon, whipped cream E horizon, pudding Bhs and B horizon, and graham cracker glacial till.
031
Department of Earth and Planetary Sciences at Dartmouth @dartmouthears.bsky.social · 24/01/2025
The Department of Earth Sciences at Dartmouth College invites applications for the Joseph P. Obering Postdoctoral Fellowship. For more information and to apply, see apply.interfolio.com/159479. Review of applications begins February 1!
apply.interfolio.com
Apply - Interfolio {{$ctrl.$state.data.pageTitle}} - Apply - Interfolio
072
Reposted by Department of Earth and Planetary Sciences at Dartmouth
Brenhin Keller @brenhinkeller.bsky.social · 22/12/2024
New paper on glacial erosion rates and the Sadler effect that came out of a @dartmouthears.bsky.social grad seminar class just out now in Sci Adv! doi.org/10.1126/scia...
doi.org
Limits to timescale dependence in erosion rates: Quantifying glacial and fluvial erosion across timescales
Globally, glacial erosion rates outpace fluvial, with limits to the biases introduced by measuring across different timescales.
23912
Reposted by Department of Earth and Planetary Sciences at Dartmouth
Dartmouth Arts and Sciences @dartmouthartsci.bsky.social · 11/12/2024
. @dartmouthears.bsky.social professor Justin Strauss and researchers from @uofwa.bsky.social and Williams College trekked the Canadian Rockies this summer in search of what could prove to be the earliest record of animal life on Earth. ➡️ bit.ly/4ioT9Nb 📸 Robert Gill
Justin Strauss and Akshay Mehra examine an exposed ancient reef high in Canada’s Mackenzie Mountains for fossil samples.Phoebe Cohen plans a safe route over the rugged terrain to the reefs with Justin Strauss and the team. Justin Strauss treks with postdoctoral scholar Meghan King and college sophomore Caroline Nadalin to a fossilized reef.Researchers hike down from the reef with backpacks full of rock and fossil samples.
052
Reposted by Department of Earth and Planetary Sciences at Dartmouth
Dartmouth Arts and Sciences @dartmouthartsci.bsky.social · 06/12/2024
@dartmouthears.bsky.social professor Mathieu Morlighem discusses the risks of an Antarctic ice shelf that broke apart in 2022, and an emerging hot spot along the coast of East Antarctica, via Science News.
sciencenews.org
An unexpected ice collapse hints at worrying changes on the Antarctic coast
The Conger Ice Shelf disintegrated in 2022. Satellite data leading up to the collapse hint at worrying changes in a supposedly stable ice sheet.
033