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New Article in Nature by Becky Alexander

Becky Alexander in the cold room of the UW’s IsoLab with sections of an ice core. Her group is now analyzing ice cores from Antarctica to see if they show the same trend as in Greenland. Image credit: Mark Stone/University of Washington
Becky Alexander in the cold room of the UW’s IsoLab with sections of an ice core. Her group is now analyzing ice cores from Antarctica to see if they show the same trend as in Greenland. Image credit: Mark Stone/University of Washington


Isotopic evidence of multiple controls on atmospheric oxidants over climate transitions
The abundance of tropospheric oxidants, such as ozone (O3) and hydroxyl (OH) and peroxy radicals (HO2 + RO2), determines the lifetimes of reduced trace gases such as methane and the production of particulate matter important for climate and human health...

Read more from UW Today: http://www.washington.edu/news/2017/05/17/earths-atmosphere-more-chemically-reactive-in-cold-climates/

Read the paper: http://www.nature.com/nature/journal/vaop/ncurrent/full/nature22340.html

New Article in Nature by Eric Steig

Turner et al. report that the peninsula has cooled during the past 20 years. Image credit: Tom Tobin
Turner et al. report that the peninsula has cooled during the past 20 years. Image credit: Tom Tobin


Climate science: Cooling in the Antarctic
The Antarctic Peninsula has been warming for many decades, but an analysis now reveals that it has cooled since the late 1990s. Inspection of the factors involved suggests that this is consistent with natural variability.

Read more: http://www.nature.com/nature/journal/v535/n7612/full/535358a.html

SPIceCore Drilling is Now Complete

SPIceCore Drilling is now complete with a final depth of 1,751.11 meters.

The drill gave us one final fight Friday as we again experienced problems with the control system. Thanks to our electrical engineer, Zach, we were able to get back running so we could end the season on our own terms, reaching our goal. (Actually, our goal shifted -- our original goal was 1500 m! We're 251 m and about 15000 years past our goal. A very successful season. Huge thanks to T.J. Fudge for getting this so far along last season, which allowed us to be so efficient this year).

We are now finishing the final bailing of chips out of the borehole to allow for logging next year.

Packing has begun in earnest, and we are all scheduled to depart Pole on Friday (Thurs for you). We ought to be in the U.S. by the 5th of Feb.

Emma cleaning the last core Eric pushing out the last core The last core Last meter being packed

Rare nautilus sighted for the first time in three decades

Allonautilus scrobiculatus off the coast of Ndrova Island in Papua New Guinea. Peter Ward
Allonautilus scrobiculatus. Photo Credit: Peter Ward

UW professor Peter Ward recently returned from Papua New Guinea with footage of a rare species of nautilus, the first sighting in three decades. Dr. Ward, who holds appointments in the Department of Biology and the Department of Earth and Space Sciences, was more than happy to share photos of this scarce species, which is part of a lineage of “living fossils.”

View the original article here:
http://www.washington.edu/news/2015/08/25/rare-nautilus-sighted-for-the-first-time-in-three-decades/