Paul Shepson has become the dean of Stonybrook University School of Marine and Atmospheric Sciences.

Paul Shepson Named Dean of SoMAS

Ana Morales wins William F. Epple outstanding teaching award.

Jay Tomlin has joined the Shepson group as a Ph.D. student working with ALAR.

Nitrate radical oxidation of γ-terpinene: hydroxy nitrate, total organic nitrate, and secondary organic aerosol yields.

https://doi.org/10.5194/acp-17-8635-2017

Ana Morales has joined the Shepson group to participate in summer research before officially beginning her graduate studies at Purdue in the fall.

Assessing the optimized precision of the aircraft mass balance method.

https://doi.org/10.1525/elementa.134

Thilina Jayarathne joined the Shepson Atmospheric Chemistry Group at the beginning of June as a postdoctoral researcher! He recently completed his PhD in Betsy Stone’s Group at the University of Iowa. He will be working with fellow postdoc, Nate Slade, and grad student, Sarah Desrochers, on understanding organic nitrate chemistry in the atmosphere.

Congratulations to group members Wes Halfacre and Tegan Lavoie who both successfully defended their dissertations today. Dr. Lavoie is going to work with the EPA and Dr. Halfacre is off to Indiana University as an assistant professor. Good luck, and don’t forget to keep in touch!

Since late February, Angela has been in Barrow, AK studying the flux of halogens from the Arctic snowpack. You can read about our adventures from February 21th, 2016 – April 25, 2016 on graduate student Angela Raso’s Blog – http://snowkidding.blogspot.com/

Here is a brief synopsis of the project:

During the spring in both the Arctic and Antarctic ozone concentrations go through periodic depletion events, where concentrations of ozone go from northern hemispheric background levels of ~30ppb to near 0ppb over the course of several hours. These ozone depletion events (ODEs) are of great interest because of ozone’s influence on oxidation and cleaning the atmosphere. Halogens, especially bromine, is believed to be the cause of these events. Bromine and other halogens are believed to be produced via photochemistry in salty coastal snow. However, the magnitude of halogen production from the snowpack has not been well defined. In this project we will measure the flux of both bromine and chlorine from the snowpack near Barrow Alaska using the eddy co-variance method. Additionally, a 10m tall tower has been erected to examine the stability and mixing of the halogens from the snowpack into the atmosphere.

This project is a collaboration with the micrometeorology group at Penn State (http://www.micromet.psu.edu/) and the Pratt lab a University of Michigan (http://prattlab.chem.lsa.umich.edu/)

Congratulations to Joel Rindelaub, Ph.D., and Christopher Groff, M.S., who successfully defended their dissertations. Good luck out there fellows, and don’t forget us when you send out holiday greetings!