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SUMMARY:Visiting Scientist Lecture: Past Climate Impacts on Human Evolution
DESCRIPTION:Dr. Axel Timmermann\n\n\n\nOur genus Homo emerged in Africa 2-3 million years ago during a time of climate cooling and increasing glacial cycles. How early humans adapted to these disruptions remains a mystery. This seminar introduces numerical models that simulate dispersal\, adaptation\, and interbreeding\, using paleo­climate simulations to explore climate’s role in human evolution. Axel Timmermann will show how Milankovic cycles created migration corridors that shaped today’s genetic diversity and discuss climate-driven depopulation events in Europe ( ~1.1 million years ago) and Africa ( ~ 900 thousand years ago). \n\n\n\nBy integrating paleo-climate\, anthropology\, and archaeology\, we can reconstruct the human climate niche and examine how hominins became highly mobile and resilient around 800 thousand years ago\, possibly linked to increasing glacial cycles and advances in tool use and fire-making. Recent efforts to incorporate climate and paleo­vegetation data into human origins research offer new insights into our past and raise important questions about how modern climate change may shape our future. \n\n\n\n\n\n\n\nSpeaker Bio:  \n\n\n\n\n\n\n\n\n\n\n\nAxel Timmermann is the Director of the IBS Center for Climate Physics (ICCP) at Pusan National University\, South Korea\, where he also holds a Distinguished Professorship. Dr. Timmermann received his PhD in 1999 from the University of Hamburg\, Germany. After 2 years as a postdoc at the Royal Netherlands Meteorological Institute and 3 years as research team leader at the IfM-GEOMAR/University of Kiel in Germany he moved to the University of Hawaii to work first as an associate professor and then from 2009-2016 as a full tenured professor at the International Pacific Research Center and the Department of Oceanography. In 2017 he launched the ICCP – one of the South Korea’s largest climate research centers.  \n\n\n\n\n\nDr. Axel Timmermann was the recipient of the 2008 Rosenstiel Award in Oceanographic Science\, the 2015 University of Hawai’i Regents’ Medal for Research Excellence and the 2017 Milanković Medal from the European Geosciences Union. He is a Fellow of the American Geophysical Union and has been listed consecutively as a Clarivate Highly Cited Researcher from 2018 to 2024. His more than 240 publications cover a wide range of subjects\, including Quark-Gluon Plasma\, relativistic hydrodynamics\, the El Niño-Southern Oscillation\, glacial cycles\, abrupt climate change\, climate prediction\, human evolution\, isotope geochemistry\, eco-cultural modelling and dynamical systems’ theory. Currently he is working on Southern African paleo-climate reconstructions\, a model of terrestrial life and the foundations of quantum mechanics. Dr. Timmermann has conducted oceanographic\, limnological and paleo-climate field work in the Arctic Ocean\, on remote Pacific Islands\, and in caves in South Korea and Botswana.
URL:https://uaf-iarc.org/event/visiting-scientist-lecture-dr-axel-timmermann/
LOCATION:Akasofu 501\, 2160 Koyukuk Dr\, Fairbanks\, AK\, 99775\, United States
ATTACH;FMTTYPE=image/png:https://uaf-iarc.org/wp-content/uploads/2025/03/screenshot-2025-03-03-at-12.07.47 pm.png
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DTSTART;TZID=America/Anchorage:20191015T130000
DTEND;TZID=America/Anchorage:20191015T140000
DTSTAMP:20260518T180932Z
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UID:10000137-1571144400-1571148000@uaf-iarc.org
SUMMARY:Climate Physics Journal Club - Dynamical downscaling for Southeast Alaska: A look at precipitation metrics
DESCRIPTION:Presenter: Rick Lader\, Postdoctoral Fellow\, Alaska Climate Adaptation Science Center\n\nSoutheast Alaska has been under drought conditions for the past two years\, with precipitation deficits of greater than 100 cm in some locations. These conditions have impacted hydropower electricity generation\, fish habitat and forest health. Given the region’s extreme topographical gradients\, newly produced dynamically downscaled datasets are used to help resolve and study changes on this landscape.\n\nThis seminar looks at historical precipitation trends\, rain/snow partitioning and precipitation intensities from the downscaled Climate Forecast System Reanalysis (CFSR). These data are at 4-km spatial resolution across Southeast Alaska from 1981-2018. Future projections (2031-2060) of these indices are also investigated using downscaled simulations from the Geophysical Fluid Dynamics Laboratory Climate Model version 3 (GFDL-CM3). Bias correction methods for the climate model simulations are also considered.
URL:https://uaf-iarc.org/event/climate-physics-journal-club-dynamical-downscaling-for-southeast-alaska-a-look-at-precipitation-metrics/
LOCATION:Akasofu 501\, 2160 Koyukuk Dr\, Fairbanks\, AK\, 99775\, United States
CATEGORIES:Climate Physics Journal Club
ATTACH;FMTTYPE=image/jpeg:https://uaf-iarc.org/wp-content/uploads/2019/10/P6180639.jpg
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DTSTART;TZID=America/Anchorage:20180608T080000
DTEND;TZID=America/Anchorage:20180608T163000
DTSTAMP:20190920T212221Z
CREATED:20180914T183741Z
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UID:10000104-1528444800-1528475400@uaf-iarc.org
SUMMARY:Arctic Field Summer School: student presentations
DESCRIPTION:Presentation schedule\nStudent presentations by the 2018 Arctic Field Summer School- Norway-Canada-USA collaboration \n2:00 – 2:10 Introduction \n2:10 – 2:30 Ingrid Olsen\, Sofia Kjellman—Estimating the response of lake ice breakup to lake depth using satellite observations and field measurements on Northern North Slope\, Alaska \n2:30 – 2:50 Matt Ayre\, Andrew Clark\, Kristina Miller\, Sarah St. Germain—Validating SAR interpretations of thermoskarst lake ice \n2:50 – 3:00 Corneluis Quigley—An investigation into an area of anomalous radar backscattering on the Elson Lagoon \n3:00 – 3:10 Break \n3:10 – 3:30 Ole Baardshaug\, Julia Shates\, Naomi Ochwat\, Johannes Lohse—Sea ice characteristics in Elson Lagoon: ice growth\, sediment\, stratigraphy and classification \n3:30 – 3:50 Ming Gong\, Maria Krivov—Remote sensing data analysis of Barrow area \n3:50 – 4:00 Rowan Romeyn—Surveying pressure ridges in bottomfast ice \n4:00 – 4:20 Kate Turner\, David Jensen—What ice? Wet ice! A story of perseverance
URL:https://uaf-iarc.org/event/arctic-field-summer-school-student-presentations/
LOCATION:Akasofu 501\, 2160 Koyukuk Dr\, Fairbanks\, AK\, 99775\, United States
CATEGORIES:Student Presentation
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