News

Research Highlighted in Science Magazine

By Jeffrey GeddesApril 24th, 2019in News

Research led by collaborators at the University of Virginia was recently highlighted in Science Magazine.

Jeff is a co-author on the original study, published in Environmental Science & Technology earlier this month, entitled "Observing Severe Drought Influences on Ozone Air Pollution in California". In this work, University of Virginia graduate student Angelique Demetillo and PI Sally Pusede describe their analysis that shows how the extended drought in California impacted surface ozone production by altering the natural emissions of biogenic hydrocarbons.

Talk at the BU Astronomical Society Meeting

By Jeffrey GeddesApril 14th, 2019in News

This weekend, Jeff spoke at the BU Astronomical Society's first annual weather balloon launch event. The afternoon consisted of talks from faculty and graduate students, as well as tours of the BU observatory, and scientific demonstrations, all organized by the BUAS students

 

WMO Expert Meeting on Global Total Atmospheric Deposition

By Jeffrey GeddesFebruary 25th, 2019in News

This week, Jeff is in Geneva participating in the latest Global Atmospheric Watch Expert Meeting on Measurement-Model Fusion for Global Total Atmospheric Deposition (MMF-GTAD) at the World Meteorological Organization in Geneva. The title of his talk is: "Update and Future Directions of Satellite/Remote Sensing Activities Related to MMF-GTAD".

Geddes Group @ AGU

By Jeffrey GeddesDecember 10th, 2018in News

This week, two members of the Geddes group will be attending the Fall Meeting of the American Geophysical Union in Washington, DC.

Anthony will be presenting a poster called "Long-term Global Multi-physical Modelling of Ozone Dry Deposition Velocity - with Focus on Process Uncertainty and Implication on Air Quality Modelling" (see the abstract here).

Jeff will be presenting a talk called "Characterizing sea breeze effects on surface ozone concentrations in the Boston region, and implications for remote sensing of local air quality" (see the abstract here).

Follow along on social media using #AGU18!

Article Published in Atmospheric Measurement Techniques

By Jeffrey GeddesNovember 21st, 2018in News

Nitrogen dioxide (NO2) is found in the troposphere (the layer of the atmosphere closest to the surface) and in the stratosphere (the layer of the atmosphere that protects us from harmful UV radiation). When we measure NO2 from space-based instruments, we measure the combined NO2 in both layers. Separating the stratospheric and tropospheric content is critical to the application and interpretation of these satellite observations. In our latest article that has just been published in Atmospheric Measurement Techniques, we show how this will be possible for a new geostationary satellite instrument called TEMP (anticipated to launch sometime around 2021).

Read the article here: https://www.atmos-meas-tech.net/11/6271/2018/.

Research on Tap: Understanding and Forecasting Change in Our Natural World

By Jeffrey GeddesNovember 7th, 2018in News

This afternoon, Jeff is participating in a "Research on Tap" event at BU, focused on gathering together investigators across many disciplines who are interested in exploring how to forecast changes in the natural world. Jeff will be discussing links between variability in the natural environment and global air quality. The event was hosted by Gloria Waters (Vice President and Associate Provost for Research at BU) and Prof. Mike Dietze (Associate Professor in the Department of Earth & Environment at BU).

GEMS Meeting in Seoul

By Jeffrey GeddesSeptember 30th, 2018in News

This week, Jeff is in Seoul, Korea, to attend the 9th Geostationary Environmental Monitoring Spectrometer (GEMS) Science Team Meeting.  GEMS is a geostationary satellite instrument that will be dedicated to monitoring tropospheric pollution over Asia. Jeff will be presenting his work on an algorithm to separate the signal of NO2 in the stratosphere from the total atmospheric column, in order to determine the amount of NO2 in the troposphere alone.

Welcome to Marissa

By Jeffrey GeddesSeptember 10th, 2018in News

Welcome to Marissa Lee, who is joining the Geddes group as a work-study student this year. Marissa is an undergraduate student at Boston University, majoring in Earth and Environmental Science with a minor is Remote Sensing and GIS.