Dr. Evan J. Gowan
@evangowan.bsky.social
I am a climate scientist, focused on paleoclimate, sea level change and the evolution of Quaternary glaciations.
I reconstruct ice sheets using glacial isostatic adjustment and ice sheet modelling. In Japan but have been all over the place. 🇨🇦🇯🇵🇦🇺🇩🇪🇸🇪
I reconstruct ice sheets using glacial isostatic adjustment and ice sheet modelling. In Japan but have been all over the place. 🇨🇦🇯🇵🇦🇺🇩🇪🇸🇪
Pinned
Hello Bluesky folks! I am interested in meeting people working on climate, sea level and ice sheets, especially with reference to the past. Please visit my website for a larger bio! raisedbeaches.net/about/
This whole Scientific Reports AI slop paper debacle should serve as a warning. If you choose to publish in these low quality journals, it is very likely that other scientists are going to look suspiciously at it, or people will just ignore it. I don't waste my time browsing these kinds of journals.
November 28, 2025 at 9:40 AM
This whole Scientific Reports AI slop paper debacle should serve as a warning. If you choose to publish in these low quality journals, it is very likely that other scientists are going to look suspiciously at it, or people will just ignore it. I don't waste my time browsing these kinds of journals.
Reposted by Dr. Evan J. Gowan
It should perhaps give us more pause that the Ogallala Group and related Miocene through Pleistocene deposits in Nebraska have a very nice chronological framework from the 40+ distinct tephra layers in it, with fewer than you'd expect having connection to the Yellowstone Hotspot....
Ashfall Tephra in the Ogallala Group of the Great Plains: Characteristics and Significance
The Miocene Ogallala Group blankets the Great Plains east of the Rocky Mountains. This sheet of largely fluvial deposits, lying downwind of major silicic volcanic fields to the west, was ideally locat...
digitalcommons.unl.edu
November 28, 2025 at 7:48 AM
It should perhaps give us more pause that the Ogallala Group and related Miocene through Pleistocene deposits in Nebraska have a very nice chronological framework from the 40+ distinct tephra layers in it, with fewer than you'd expect having connection to the Yellowstone Hotspot....
Reposted by Dr. Evan J. Gowan
The East Antarctic continental shelf is central to the #climate system yet remains one of the most poorly known regions of the global ocean.
So #Antarctic scientists in Japan and Australia have produced this ambitious forward-looking research plan.
▶️ aappartnership.org.au/wp-content/u...
So #Antarctic scientists in Japan and Australia have produced this ambitious forward-looking research plan.
▶️ aappartnership.org.au/wp-content/u...
November 28, 2025 at 5:32 AM
The East Antarctic continental shelf is central to the #climate system yet remains one of the most poorly known regions of the global ocean.
So #Antarctic scientists in Japan and Australia have produced this ambitious forward-looking research plan.
▶️ aappartnership.org.au/wp-content/u...
So #Antarctic scientists in Japan and Australia have produced this ambitious forward-looking research plan.
▶️ aappartnership.org.au/wp-content/u...
Belotti et al investigate the glacial history of the Chitina Valley in south-central Alaska. They find that there was a retreat of the glaciers/ice caps in that region to present-day extend during parts of MIS 3. doi.org/10.1111/bor....
Stratigraphic evidence for modern‐like glacier extents in south‐central Alaska within the last glacial period (MIS 3)
The last (Wisconsinan) glacial period was punctuated in North America by two glacial maxima, known as the Early and Late Wisconsinan glaciations. In Alaska, these maxima and their subsequent retreats...
doi.org
November 28, 2025 at 2:36 AM
Belotti et al investigate the glacial history of the Chitina Valley in south-central Alaska. They find that there was a retreat of the glaciers/ice caps in that region to present-day extend during parts of MIS 3. doi.org/10.1111/bor....
I have the first paper in my 2026 folder! Altyeb et al present a compilation of Last Interglacial (MIS 5e) sea level proxies along the Egyptian Coast of the Red Sea. It looks like the northern part of the coast is affected by tectonics. doi.org/10.1016/j.qu...
Redirecting
doi.org
November 27, 2025 at 4:47 AM
I have the first paper in my 2026 folder! Altyeb et al present a compilation of Last Interglacial (MIS 5e) sea level proxies along the Egyptian Coast of the Red Sea. It looks like the northern part of the coast is affected by tectonics. doi.org/10.1016/j.qu...
Reposted by Dr. Evan J. Gowan
An amazing accomplishment, the 670 kyr long high Andes Lake Junin vegetation record www.nature.com/articles/s41... 🧪🌿
A neotropical perspective on the uniqueness of the Holocene among interglacials - Nature Communications
A 670,000-year vegetation and climate history from Lake Junín, Peru, showed that the last interglacial was the warmest while the current interglacial had uniquely high fire frequencies that were cause...
www.nature.com
November 27, 2025 at 3:10 AM
An amazing accomplishment, the 670 kyr long high Andes Lake Junin vegetation record www.nature.com/articles/s41... 🧪🌿
Reposted by Dr. Evan J. Gowan
![Comic: Typical Geologic core sample. [Cylindrical core sample with labels for difference sections from top to bottom] Topsoil, till, granite bedrock, bottomsoil, roof of subway car, floor of subway car, more granite, municipal water main [gouge in core sample], slightly different granite, piece of screaming spelunker’s forearm, cool crystals with no resale value, mangled fragments of drillbit from previous attempt, some boring intrusive rock that’s basically granite but has a name like “diorite” or “Andalite” that you always have to look up, netherrack, Balrog wing. [break between next chunk of core sample] Granite, topsoil, cement, floorboards, carpet, possessions of a confused and angry homeowner in the other hemisphere.](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:cz73r7iyiqn26upot4jtjdhk/bafkreicffnydtpbb2x24cfbblv2qtcwbr37zyw44vtqx47ocj2a26b2j2u@jpeg)
November 25, 2025 at 10:35 PM
Reposted by Dr. Evan J. Gowan
ICRS2026 submission deadline is next week!
#ICRS2026 is now open for abstract submissions! Coral modellers - consider submitting an abstract to our Session 19: modeling coral reef ecosystems across scales. We're hoping to get diverse abstracts spanning a broad range of spatial and temporal scales! 🪸🌊
November 24, 2025 at 8:19 PM
ICRS2026 submission deadline is next week!
Reposted by Dr. Evan J. Gowan
🌟 Volunteer Opportunity! 🌟
Sedimentologika is currently undergoing a transition to an open-source LaTeX based proofing and production workflow.
We are advertising a volunteering position for one (or more) assistant production editor.
Send your application at [email protected]
Sedimentologika is currently undergoing a transition to an open-source LaTeX based proofing and production workflow.
We are advertising a volunteering position for one (or more) assistant production editor.
Send your application at [email protected]
November 25, 2025 at 11:00 AM
🌟 Volunteer Opportunity! 🌟
Sedimentologika is currently undergoing a transition to an open-source LaTeX based proofing and production workflow.
We are advertising a volunteering position for one (or more) assistant production editor.
Send your application at [email protected]
Sedimentologika is currently undergoing a transition to an open-source LaTeX based proofing and production workflow.
We are advertising a volunteering position for one (or more) assistant production editor.
Send your application at [email protected]
There was a moderate earthquake a few minutes ago near Mt. Aso in Kumamoto. I was on a bus so I did not feel it. Based on the moment tensor and depth, it is probably on the same fault that ruptured in 2016. earthquake.usgs.gov/earthquakes/...
November 25, 2025 at 9:34 AM
There was a moderate earthquake a few minutes ago near Mt. Aso in Kumamoto. I was on a bus so I did not feel it. Based on the moment tensor and depth, it is probably on the same fault that ruptured in 2016. earthquake.usgs.gov/earthquakes/...
Reposted by Dr. Evan J. Gowan
An explosive #eruption of Hayli Gubbi #volcano, located SE of Erta'Ale in the Afar Rift (Ethiopia), began at ~08:30 UTC on Nov 23. Eruption onset was fortuitously captured by a @planet.com overpass at 08:31 UTC. Hayli Gubbi has no record of Holocene eruptions. Toulouse VAAC reporting ash to ~15 km.
November 23, 2025 at 5:23 PM
An explosive #eruption of Hayli Gubbi #volcano, located SE of Erta'Ale in the Afar Rift (Ethiopia), began at ~08:30 UTC on Nov 23. Eruption onset was fortuitously captured by a @planet.com overpass at 08:31 UTC. Hayli Gubbi has no record of Holocene eruptions. Toulouse VAAC reporting ash to ~15 km.
Reposted by Dr. Evan J. Gowan
Just published
Hossan, A. et al.: Evaluation of wet snow dielectric mixing models for L-band radiometric measurement of liquid water content in Greenland's percolation zone, The Cryosphere, 19, 6077–6102, doi.org/10.5194/tc-1..., 2025.
Hossan, A. et al.: Evaluation of wet snow dielectric mixing models for L-band radiometric measurement of liquid water content in Greenland's percolation zone, The Cryosphere, 19, 6077–6102, doi.org/10.5194/tc-1..., 2025.
Evaluation of wet snow dielectric mixing models for L-band radiometric measurement of liquid water content in Greenland's percolation zone
Abstract. The effective permittivity of wet snow and firn links the snow microphysics to its radiometric signature, making it essential for accurately estimating the liquid water amount (LWA) in the s...
doi.org
November 21, 2025 at 1:56 PM
Just published
Hossan, A. et al.: Evaluation of wet snow dielectric mixing models for L-band radiometric measurement of liquid water content in Greenland's percolation zone, The Cryosphere, 19, 6077–6102, doi.org/10.5194/tc-1..., 2025.
Hossan, A. et al.: Evaluation of wet snow dielectric mixing models for L-band radiometric measurement of liquid water content in Greenland's percolation zone, The Cryosphere, 19, 6077–6102, doi.org/10.5194/tc-1..., 2025.
Reposted by Dr. Evan J. Gowan
Day 7 of the Ark of Coral Reefs saw us visit Tatsukushi in Kochi Prefecture. I saw lots of evidence of higher relative sea level, in addition to the beautiful Miocene sediments of the geopark.
raisedbeaches.net/2025/11/20/t...
raisedbeaches.net/2025/11/20/t...
The Ark of Coral Reefs cruise – Day 7
Time for some paleo sea level science. Look at that terrace! On day 7, we arrived at the Tosashimizu Geopark in southern Kochi Prefecture on Shikoku Island. Plenty of interesting geology! For me, t…
raisedbeaches.net
November 20, 2025 at 1:53 PM
Day 7 of the Ark of Coral Reefs saw us visit Tatsukushi in Kochi Prefecture. I saw lots of evidence of higher relative sea level, in addition to the beautiful Miocene sediments of the geopark.
raisedbeaches.net/2025/11/20/t...
raisedbeaches.net/2025/11/20/t...
Day 7 of the Ark of Coral Reefs saw us visit Tatsukushi in Kochi Prefecture. I saw lots of evidence of higher relative sea level, in addition to the beautiful Miocene sediments of the geopark.
raisedbeaches.net/2025/11/20/t...
raisedbeaches.net/2025/11/20/t...
The Ark of Coral Reefs cruise – Day 7
Time for some paleo sea level science. Look at that terrace! On day 7, we arrived at the Tosashimizu Geopark in southern Kochi Prefecture on Shikoku Island. Plenty of interesting geology! For me, t…
raisedbeaches.net
November 20, 2025 at 1:53 PM
Day 7 of the Ark of Coral Reefs saw us visit Tatsukushi in Kochi Prefecture. I saw lots of evidence of higher relative sea level, in addition to the beautiful Miocene sediments of the geopark.
raisedbeaches.net/2025/11/20/t...
raisedbeaches.net/2025/11/20/t...
I am definitely feeling anxiety the past couple of days over my job situation. Last week I received rejection letters without interview for a couple of positions I assumed I would be well qualified for. What is the point of acquiring all this knowledge if it is so hard to find a way to utilize it?
November 19, 2025 at 2:46 AM
I am definitely feeling anxiety the past couple of days over my job situation. Last week I received rejection letters without interview for a couple of positions I assumed I would be well qualified for. What is the point of acquiring all this knowledge if it is so hard to find a way to utilize it?
Reposted by Dr. Evan J. Gowan
New paper alert ! 🙂
Happy to share our new study published in The Cryosphere !
doi.org/10.5194/tc-1...
We modelled the evolution of the Greenland Ice Sheet from the LGM (24 ka) to the present and learned a lot on its former history and dynamics !
@jeremyely.bsky.social @chrisdclark.bsky.social
Happy to share our new study published in The Cryosphere !
doi.org/10.5194/tc-1...
We modelled the evolution of the Greenland Ice Sheet from the LGM (24 ka) to the present and learned a lot on its former history and dynamics !
@jeremyely.bsky.social @chrisdclark.bsky.social
November 18, 2025 at 2:35 PM
New paper alert ! 🙂
Happy to share our new study published in The Cryosphere !
doi.org/10.5194/tc-1...
We modelled the evolution of the Greenland Ice Sheet from the LGM (24 ka) to the present and learned a lot on its former history and dynamics !
@jeremyely.bsky.social @chrisdclark.bsky.social
Happy to share our new study published in The Cryosphere !
doi.org/10.5194/tc-1...
We modelled the evolution of the Greenland Ice Sheet from the LGM (24 ka) to the present and learned a lot on its former history and dynamics !
@jeremyely.bsky.social @chrisdclark.bsky.social
Tang et al present new sea level index points for the Bohai Sea, providing a much better constrained mid-late Holocene sea level reconstruction than was available before. There is strong evidence that relative sea level was 2.2-3.5 m higher than present in the mid-Holocene. doi.org/10.1029/2025...
Significant Sea‐Level Fluctuations and Transgression During the Holocene in the Bohai Sea, Northern China
Bohai Sea relative sea-level (RSL) rose to +2.2–3.49 m between 6.2 and 4.9 cal kyr BP, peaking at +3.05–3.49 m at ∼5.6 cal kyr BP Transgression initiated in the Bohai Sea between 7.7 and 7.3 cal ...
doi.org
November 17, 2025 at 7:52 AM
Tang et al present new sea level index points for the Bohai Sea, providing a much better constrained mid-late Holocene sea level reconstruction than was available before. There is strong evidence that relative sea level was 2.2-3.5 m higher than present in the mid-Holocene. doi.org/10.1029/2025...
Langford et al report on paleo sea level during MIS 7 and 5e for Fenland in eastern England. In both cases, paleo sea level was higher than present in Fenland. I think this adds to the growing evidence that global sea level in MIS 7 did go above present level. doi.org/10.1002%2Fjq...
New age‐estimate data and implications for marine isotope stage 7 and 5e sea levels in Fenland, eastern England
Only one last interglacial relative sea-level indicator point (SLIP) has been recognised for Fenland, eastern England, and the nearest penultimate interglacial SLIP is located on the north Norfolk co...
doi.org
November 17, 2025 at 7:34 AM
Langford et al report on paleo sea level during MIS 7 and 5e for Fenland in eastern England. In both cases, paleo sea level was higher than present in Fenland. I think this adds to the growing evidence that global sea level in MIS 7 did go above present level. doi.org/10.1002%2Fjq...
Reposted by Dr. Evan J. Gowan
The AI bubble may be about to bust.
Peter Thiel has sold all of his Nvidia stock.
We all need to say this very clearly:
NO BAILOUTS FOR THEFT-TECH!
Expropriate their asses instead.
They stole from all of us and fully plan to burn the planet.
They owe us - not the other way around. 1/3
Peter Thiel has sold all of his Nvidia stock.
We all need to say this very clearly:
NO BAILOUTS FOR THEFT-TECH!
Expropriate their asses instead.
They stole from all of us and fully plan to burn the planet.
They owe us - not the other way around. 1/3
November 17, 2025 at 6:37 AM
The AI bubble may be about to bust.
Peter Thiel has sold all of his Nvidia stock.
We all need to say this very clearly:
NO BAILOUTS FOR THEFT-TECH!
Expropriate their asses instead.
They stole from all of us and fully plan to burn the planet.
They owe us - not the other way around. 1/3
Peter Thiel has sold all of his Nvidia stock.
We all need to say this very clearly:
NO BAILOUTS FOR THEFT-TECH!
Expropriate their asses instead.
They stole from all of us and fully plan to burn the planet.
They owe us - not the other way around. 1/3
Reposted by Dr. Evan J. Gowan
Touchdown on ice.. three MYIC science and drilling team members arrived to Casey Station yesterday after ride in the big jet with other incoming Casey Station crew. Thanks ADF!
#AusAntarctic 📸 JP
#AusAntarctic 📸 JP
November 16, 2025 at 6:47 AM
Touchdown on ice.. three MYIC science and drilling team members arrived to Casey Station yesterday after ride in the big jet with other incoming Casey Station crew. Thanks ADF!
#AusAntarctic 📸 JP
#AusAntarctic 📸 JP
Reposted by Dr. Evan J. Gowan
Now that the Sept and Oct data are (belatedly) in, it looks like 2025 will be the second warmest year in the record (~80% probability). The last three years are in a class of their own.
November 15, 2025 at 4:54 PM
Now that the Sept and Oct data are (belatedly) in, it looks like 2025 will be the second warmest year in the record (~80% probability). The last three years are in a class of their own.
Reposted by Dr. Evan J. Gowan
Finally, it's out! For decades Caribbean geologists and biologists were puzzled how South American land plants and animals could have traveled to Cuba. Our new reconstruction of rising, moving, and breaking land bridges now shows how!
www-nature-com.utrechtuniversity.idm.oclc.org/articles/s43...
www-nature-com.utrechtuniversity.idm.oclc.org/articles/s43...
University Utrecht Login from Home
www-nature-com.utrechtuniversity.idm.oclc.org
November 15, 2025 at 10:47 AM
Finally, it's out! For decades Caribbean geologists and biologists were puzzled how South American land plants and animals could have traveled to Cuba. Our new reconstruction of rising, moving, and breaking land bridges now shows how!
www-nature-com.utrechtuniversity.idm.oclc.org/articles/s43...
www-nature-com.utrechtuniversity.idm.oclc.org/articles/s43...
Reposted by Dr. Evan J. Gowan
Come be my colleague at University of Hawaiʻi at Mānoa. We're hiring an assistant professor in Ocean Biogeochemical Modeling. 🌊
Career Opportunities at the University of Hawai'i | University of Hawai'i
www.schooljobs.com
November 15, 2025 at 12:05 PM
Come be my colleague at University of Hawaiʻi at Mānoa. We're hiring an assistant professor in Ocean Biogeochemical Modeling. 🌊
Reposted by Dr. Evan J. Gowan
On Noto Peninsula where coseismic uplift was ~2m.
Sequence pre-earthquake, EQ +3 months, EQ +23 months. I thought we would be able to monitor this nice flat surface for weathering efficiency over the years…
Sequence pre-earthquake, EQ +3 months, EQ +23 months. I thought we would be able to monitor this nice flat surface for weathering efficiency over the years…
November 14, 2025 at 9:43 PM
On Noto Peninsula where coseismic uplift was ~2m.
Sequence pre-earthquake, EQ +3 months, EQ +23 months. I thought we would be able to monitor this nice flat surface for weathering efficiency over the years…
Sequence pre-earthquake, EQ +3 months, EQ +23 months. I thought we would be able to monitor this nice flat surface for weathering efficiency over the years…