Assistant Professor Christine Regalla has published “Ongoing oroclinal bending in the Cascadia forearc and its relation to concave-outboard plate margin geometry” in Geology. In the article, Dr. Regalla and her colleagues present GPS and geologic data that show the overriding plate of the Cascadia subduction zone in Oregon, Washington and southwestern British Columbia have been actively deforming and forming a map-view bend of the coastal region in real time. Click to read the full article.
On December 12th students in Research for Environmental Agencies & Organizations (GE 532, taught by Rick Reibstein), presented to officials of the city of Boston and the Boston Public Health Commission on actions that can develop green economies and improve public health in areas currently suffering the impact of high levels of pollution and neglect. The students discussed tree retention, urban gardening, electric buses, green roofs, farmers markets, tax credits that can be used for funding green businesses, programs for training a local workforce for green commerce, developing brownfields, new climate change mitigation funds, new air quality monitoring technologies, improvements in programs for residential building energy efficiency and more, including an idea for a new workforce development program that the students originated themselves, and ways to mitigate the effects of “eco-gentrification” (the reduction in affordable housing that can follow neighborhood improvement). The BPHC has requested future students of the class continue the work, especially concentrating on the issue of repairs necessary before weatherization, green roofs and for healthy homes; and the eco-gentrification problem.
PhD student Claudia Mazur was invited to give a talk as a part of the Fall 2018 Earth Adventure Series hosted by the Department of Environmental Studies, Geology, & Geography at Mount Holyoke College, Claudia’s alma mater. The purpose of Earth Adventures is to expose current students to scientific research in these three fields occurring both in and outside of Mouth Holyoke College. In “An Unlikely Pair: A Relationship Between The Sediment-Water Interface and Its Significance in Estuarine Biogeochemistry,” Claudia spoke about the fundamentals of coastal biogeochemistry and the significance of nitrogen cycling in estuarine sediments. She also shared her results from Long Island Sound Benthic Fluxes study and specifically discussed the nitrogen removal capacity and efficiency of Long Island Sound sediments. Claudia is advised by Associated Professor Wally Fulweiler.
PhD candidate Emily Chua has been invited to join the Limnology & Oceanography Research Exchange (LOREX), sponsored by the Association for the Sciences of Limnology & Oceanography. This NSF-funded initiative sponsors up to 30 U.S.-based graduate students per year to conduct collaborative research in aquatic science at an international host institution. Emily will work with several oceanographers at Dalhousie University in Halifax, Nova Scotia, to deploy a newly-developed porewater sampling system/underwater mass spectrometer (POSSUMS) in a local urban harbour, as well as the Bay of Fundy, to study the biogeochemistry of these environments.
Additionally, Chua was awarded a Short-Term Graduate Research Abroad Fellowship from the BU Graduate School for Arts & Sciences, which provides funds from alumni gifts for doctoral students to conduct research in another country. Emily will be using these funds to support field deployments of an underwater mass spectrometer that she has been helping develop and test.
Emily is advised by Associate Professor Wally Fulweiler.
Research Assistant Professor Rachel Abercrombie, and Assistant Professor Christine Regalla, and PhD student Emily Schottenfels are attending this month’s Fall AGU Meeting to present their work, interact with their colleagues and catch up with the latest research in Geophysics.
Together they are co-authors on 10 presentations, working with colleagues and students from a variety of American and international institutions. Rachel’s work focuses on earthquake source parameters of events in a variety of tectonic conditions, including the San Andreas fault in California, induced seismicity in Oklahoma, and oceanic transform faults. Christine’s group is working on finding active faults in Cascadia and imaging the subduction zone in the region of the 2011 M9 destructive Japanese earthquake and tsunami.
- S11B-02 Towards Improved Stress Drop Measurement: A Detailed Comparison of Contrasting Approaches
- S11B-03 Applying improved spectral analysis to an induced earthquake sequence in Oklahoma and implications on earthquake triggering
- S21C-0436 Source Complexity of the 2015 Mw 4.0 Guthrie, Oklahoma Earthquake
- S21C-0451 Robust Analysis of Stress Drop Variation along San Andreas Fault at Parkfield Using Multiple Local Networks
- S41C-0551 Fault Structure, Earthquake Interaction, and Source Properties of Two Small (Mw < 4) Sequences in the Walker Lane
- T13I-0354 The anatomy of an ocean transform fault rupture: the 2016 M7.1 Romanche earthquake in the Mid-Atlantic from high-resolution local seismic and bathymetry data recorded with the PI-LAB experiment
- T23E-0414 Earthquake Processes along Oceanic Transform Faults and Ridge Segments: OBS Observations along the Chain Fracture Zone in the Mid-Atlantic from the PI-LAB Experiment
- EP51D-1865 Bent out of Shape: Submarine Tectonic Geomorphology in Accretionary Prisms (lead author Emily Schottenfels)
- T13H-0319 Eocene to Recent permanent forearc deformation in Northern Cascadia, southern Vancouver Island, British Columbia, Canada
- T13H-0320 Upper plate deformation in northern Cascadia and active bending of the Olympic orocline
Professors Mark Friedl, Ranga Myneni, and Curtis Woodcock have been recently recognized as “Highly Cited Researchers” in the interdisciplinary “Cross Field” category by Clarivate Analytics for the year 2018. Clarivate runs the Web of Science and recognized a total of 20 researchers from BU. The list identifies scientists who have demonstrated significant influence through publication of multiple highly cited papers during 2006-2016 and which then were ranked in the top 1% by citations for their field and year.
At The Conversation US, Associate Professor Lucy Hutyra and Postdoctoral Associate Conor Gately advocate for pollution documentation in urban areas. “Over the last decade, our work on urban greenhouse gas emissions has shown that with the right combination of instruments, data and modeling techniques, it is possible to independently quantify carbon dioxide and methane emissions from urban areas.”
Assistant Professor Jeffrey Geddes has published “Stratosphere-troposphere separation of nitrogen dioxide columns from the TEMPO geostationary satellite instrument” in Atmospheric Measurement Techniques. “Separating the stratospheric and tropospheric contributions in satellite retrievals of atmospheric NO2 column abundance is a crucial step in the interpretation and application of the satellite observation,” Geddes and his colleagues write. Their developments include “using independent satellite observations to identify likely locations of tropospheric enhancements, using independent LEO observations for spatial context, consideration of diurnally varying partial fields of regard, and a filter based on stratospheric to tropospheric air mass factor ratios.”
In an interview with the BU Daily Free Press, Professor Nathan Phillips described his work leading rehabilitation efforts in the Merrimack Valley, in the wake of the September gas explosions. In collaboration with local climate advocacy nonprofits, Phillips has raised more than $14,000 through a GoFundMe page he started. As of October 22, he has helped deliver 598 induction cooktops — which are electrically powered stove tops that cook more efficiently than gas ones and run without the risk of leaks, according to Phillips — to households still without heat or hot water. “If this traumatic event is not parlayed into lasting change and improvement, that would be crushing,” Phillips said. “We can’t just go back to normal status quo as if nothing happened — we need to learn from it.” Click to read the full article.
Assistant Professor Christine Regalla and her colleagues have published “Holocene Surface Rupture History of an Active Forearc Fault Redefines Seismic Hazard in Southwestern British Columbia, Canada” in Geophysical Research Letters. This paper documents the first detailed history of earthquake surface rupture for an onland fault within the Cascadia subduction zone of British Columbia, Canada. These data provide new constraints on the fault’s behavior that should be incorporated into new seismic hazard assessments and building code practices relevant to urban centers in southwestern British Columbia (Canada) and northwestern Washington State (United States).