Jones

What was behind the seismic boom that wrapped Earth for 9 days? (Grist)

Anonymous — Mon, 30 Sep 2024 22:35:33 +0000

What was behind the seismic boom that wrapped Earth for 9 days? (Grist) Anonymous (not verified) Mon, 09/30/2024 - 16:35

A melting glacier collapsed, sending the mountaintop it propped up careening into the Dickson Fjord in East Greenland. The impact created a 650-foot tall tsunami, which crashed back and forth between the steep channel walls. Tyler Jones puts the event into the context of arctic climate change.

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New fossils reveal an ice-free Greenland. It’s bad news for sea level rise. (Grist)

Anonymous — Thu, 08 Aug 2024 16:57:33 +0000

New fossils reveal an ice-free Greenland. It’s bad news for sea level rise. (Grist) Anonymous (not verified) Thu, 08/08/2024 - 10:57

“We’re creating a world where these ice sheets are going to melt,” says Tyler Jones, explaining the results of a new study on fossilized plant and insect parts found at the bottom of Greenland's ice sheet.

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Meet the scientists behind the ice sanctuary — a memory vault for dying glaciers (Grist)

Anonymous — Fri, 02 Aug 2024 03:48:32 +0000

Meet the scientists behind the ice sanctuary — a memory vault for dying glaciers (Grist) Anonymous (not verified) Thu, 08/01/2024 - 21:48

Glacial ice contains valuable data about climates past. Researchers like Tyler Jones are working to preserve those records for the future. A number of science teams are archiving ice cores in a remote cave in Antarctica, where the average temperature is -54 degrees Celsuis (-65 degrees Fahrenheit).

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Old core, new data: Students unlock knowledge about past Arctic climates

Anonymous — Thu, 27 Jun 2024 16:55:34 +0000

Old core, new data: Students unlock knowledge about past Arctic climates Anonymous (not verified) Thu, 06/27/2024 - 10:55

Shelly Sommer

A team of students and scientists are reanalyzing the GISP2 ice core, drilled in Greenland during the late 1980s through the early 90s, to investigate mechanisms of abrupt climate change and extreme events of the past.

Assistant Research Professor Tyler Jones, Assistant Professor Brad Markle, and Senior Professional Research Assistant Valerie Morris of INSTAAR’s Stable Isotope Lab are leading a group of students in resampling the Greenland Ice Sheet Project Two (GISP2) core. Water isotopes in the core were originally analyzed to give insight into environmental change in the Arctic over the past 100,000 years.

Now Jones’ group is taking samples from the same core, stored for decades, and analyzing them afresh.

Analytical techniques developed over the past decades mean the team is getting much more detailed data about Earth’s past climate, unlocked from water isotopes.

Jones says, “The original measurements yielded about 3,000 data points over 3,000 meters of ice. Now we will get millions of data points over 2,000 meters of ice.” (The researchers are analyzing two-thirds of the core.)

Jones calls the team “an amazing group.” They include �鶹��Ѱ��Boulder grad students Rhys-Jasper León and Brooke Chase, Front Range Community College student Megan Erskine, Colorado College undergrad student Tirso Lara, and �鶹��Ѱ��Boulder undergrads Ella Johnson and Adira Lunken.

Click an image to zoom

Tyler Jones, Brad Markle, and Valerie Morris are leading a group of students in resampling the Greenland Ice Sheet Project Two (GISP2) core to investigate mechanisms of abrupt climate change and extreme events of the past. The original measurements (e.g., water isotopes) numbered a few thousand while the new measurements will create millions of data points.

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Photo: Tyler Jones, Rhys-Jasper León, Valerie Morris, Brooke Chase, Tirso Lara, Megan Erskine, Ella Johnson, and Adira Lunken work in the NSF Ice Core Facility, Lakewood Colorado.

Flight Ops supports INSTAAR research in Alaska (�鶹��Ѱ��Boulder Public Safety)

Anonymous — Tue, 25 Jun 2024 23:43:51 +0000

Flight Ops supports INSTAAR research in Alaska (�鶹��Ѱ��Boulder Public Safety) Anonymous (not verified) Tue, 06/25/2024 - 17:43

For the second summer in a row, the �鶹��Ѱ��Boulder Division of Public Safety's Flight Operations department is supporting important campus research in Alaska, as part of the Navigating the New Arctic project (principal investigator: Tyler Jones), which is being managed by researchers in the Stable Isotope Lab of INSTAAR.

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The Arctic's permafrost-obsessed methane detectives (Wired)

Anonymous — Fri, 07 Apr 2023 22:00:12 +0000

The Arctic's permafrost-obsessed methane detectives (Wired) Anonymous (not verified) Fri, 04/07/2023 - 16:00

Matt Simon

The Far North is thawing, unleashing clouds of planet-heating gas. Tyler Jones, Bruce Vaughn, and Kevin Rozmiarek use detectors on drones or carried by hand to measure methane release from permafrost in Alaska.

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Ice cores record long-ago seasons in Antarctica (AGU Eos)

Anonymous — Fri, 17 Mar 2023 17:55:41 +0000

Ice cores record long-ago seasons in Antarctica (AGU Eos) Anonymous (not verified) Fri, 03/17/2023 - 11:55

Caroline Hasler , Eos

Researchers led by INSTAAR Tyler Jones used ice core data to reconstruct seasonal temperatures throughout the Holocene. The results link especially hot summers with patterns in Earth’s orbit. The results are the first seasonal temperature record stretching back 11,000 years.

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Study offers most detailed glimpse yet of planet’s last 11,000 summers and winters (�鶹��Ѱ��Boulder Today)

Anonymous — Wed, 11 Jan 2023 18:50:05 +0000

Study offers most detailed glimpse yet of planet’s last 11,000 summers and winters (�鶹��Ѱ��Boulder Today) Anonymous (not verified) Wed, 01/11/2023 - 11:50

Kelsey Simpkins , �鶹��Ѱ��Boulder

By analyzing Antarctic ice cores, �鶹��Ѱ��Boulder scientists and an international team of collaborators have revealed the most detailed look yet at the planet’s recent climactic history, including summer and winter temperatures dating back 11,000 years to the beginning of what is known as the Holocene. Published today in Nature, the study is the very first seasonal temperature record of its kind, from anywhere in the world. INSTAAR Tyler Jones is lead author of the study.

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Cores 3.0: Future-proofing Earth sciences’ historical records (Eos)

Anonymous — Thu, 24 Jun 2021 06:00:00 +0000

Cores 3.0: Future-proofing Earth sciences’ historical records (Eos) Anonymous (not verified) Thu, 06/24/2021 - 00:00

Core libraries store a treasure trove of data about the planet’s past. What will it take to sustain their future?

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Arctic communities planning for abrupt permafrost thaw

Anonymous — Wed, 21 Oct 2020 06:00:00 +0000

Arctic communities planning for abrupt permafrost thaw Anonymous (not verified) Wed, 10/21/2020 - 00:00

Shelly Sommer

A view of the Yukon River watershed in Alaska from the U.S. Geological Survey, using Web-Enabled Landsat Data.

The research project brings Alaskan communities together with social and natural scientists to examine changes in permafrost thaw lake environments, including associated effects on villages in the Yukon River watershed.

The combined knowledge will be used to provide forecasts that inform about global climate, landscape change, subsistence activities, food and water security, economy, community planning, and cultural practices.

The Arctic is warming faster than most places on Earth. The permafrost—or frozen soil—that lays under much of its surface is on an inflection point for abrupt thaw. As permafrost thaws, it releases carbon into the atmosphere and alters the landscape. In many places, newly formed lakes dot the land, some emitting bubbles of methane from the underlying lakebed. This creates a feedback loop of even more global warming.

These changes will put local communities at risk, rapidly shifting factors that affect subsistence hunting, drinking water quality, travel, and local economies. Rapid permafrost thaw also has impacts on global climate that climate models do not yet fully take into account.

INSTAAR Research Associate Tyler Jones is the lead investigator on the project, joined by researchers from the Yukon River Inter-Tribal Watershed Council (Science Director Edda Mutter), Northern Social-Environmental Research (Tracie Curry), CIRES (Caroline Alden), �鶹��Ѱ��Mechanical Engineering (Greg Reiker), INSTAAR (Bruce Vaughn), and the University of Alaska Fairbanks (Katey Walter Anthony and Tracie Curry).

The study domain and project goals were defined at the outset by the Yukon River Inter-Tribal Watershed Council and local stakeholders to focus on lake area change, drinking water quality, and frozen transport corridors—topics identified collectively by communities as critically important.

“The council is connected to these communities in a way that we can’t be,” said Jones. “They can help guide our science in a way that is best for each community.”

The project includes connections with five Indigenous villages in the Yukon River watershed and one village with a diverse population just north of Fairbanks. Project scientists and interns and advisors from Yukon villages will collaborate through the framework of the watershed council, and the associated Indigenous Observation Network (ION), to measure lake area change, water chemistry, extent of ground melt, and methane emissions. Interviews and participatory mapping with knowledgeable local residents will provide contextual knowledge to supplement these measurements, all of which will be integrated into a permafrost model to provide forecasts of future change.

“The results of the study will be pertinent to Native, State, and Federal entities,” said Jones. “We are working to contribute to both the understanding of global climate dynamics and local societal needs.”

Other outcomes of the project will include annual town halls with local communities and an expanded permafrost modeling toolkit that includes changing lake environments.

The pandemic has posed several challenges right at the start of the project, said Jones. Colorado-based scientists will potentially need to undergo a fourteen-day quarantine period before visiting field sites in Alaska; and some villages will be off limits indefinitely. “Most or all of the villages aren’t interested in having outside visitors yet—and rightly so—to protect themselves,” said Jones. As a result there will be less field-based research during the first year and parts of the project will be delayed.

Project funding will support young thought leaders and mentors from Yukon River watershed villages, graduate and undergraduate students from the University of Colorado and the University of Alaska Fairbanks, and the researchers over four or more years.

A new INSTAAR-led project will engage Indigenous and Western knowledge systems to better understand abrupt permafrost change in Alaska. The National Science Foundation selected the project as part of its Navigating the New Arctic funding area, one of ten “Big Ideas” that NSF is investing in as an area of profound national challenge and opportunity. The research project brings Alaskan communities together with social and natural scientists to examine changes in permafrost thaw lake environments, including associated effects on villages in the Yukon River watershed.

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Jones

What was behind the seismic boom that wrapped Earth for 9 days? (Grist)

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New fossils reveal an ice-free Greenland. It’s bad news for sea level rise. (Grist)

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Meet the scientists behind the ice sanctuary — a memory vault for dying glaciers (Grist)

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Old core, new data: Students unlock knowledge about past Arctic climates

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