Jianqiu will be joining the Biosciences Division at Oak Ridge National Laboratory as a postdoctoral research associate with the Microbial Ecology and Physiology group headed by Dr. David E. Graham. She will be part of the biogeochemistry team that is working on the Next-Generation Ecosystem Experiments project (NGEE Arctic). A goal of NGEE Arctic is to reduce uncertainties in estimates of carbon dioxide, methane, and nitrous oxide emissions from high-latitude ecosystems by advancing understanding of the environmental drivers of biogeochemical processes across molecular to landscape scales.
The new collaboration features Tech faculty Lynn Mazzoleni (chemistry), Claudio Mazzoleni (physics), Noel Urban (CEE), Judith Perlinger (CEE), and Chris Owen (MTRI). Also involved are collaborators from the University of Colorado and the University of Illinois, as well as Universidade dos Açores and the Instituto de Meteorologia in Portugal.
Atmospheric science researchers at Michigan Tech no longer have to cross their fingers for cooperative weather—the University’s innovative new cloud chamber allows them to head into the lab and make their own.
“You’re in an aircraft going a hundred meters a second, and it’s impossible to replicate what you’ve just seen,” says fellow physicist Will Cantrell. “You know the old Taoist saying, you never step in the river twice? You never fly through the same cloud twice either.”
The Graduate School and Graduate Student Government proudly announce the 2014-2015 academic year winners.
Swarup China, a recent PhD graduate in Atmospheric Sciences, is a recipient of the Outstanding Scholarship Award. The award recognizes academic performance in areas such as excellent GPA, originality in research, leadership and teamwork.
Graduate student Joseph Niehaus is a recipient of the DeVlieg Foundation Graduate Student Fellowship for Engineering students. Niehaus is a PhD student in the interdisciplinary Atmospheric Sciences program at Michigan Tech. His advisor is Will Cantrell.
The DeVlieg Foundation has generously provided support for graduate students pursuing research in engineering, wildlife, and biology at Michigan Tech. The award is strongly competitive. The panel was impressed with Joseph Niehaus’ research, publication record, and contribution to the mission of Michigan Tech. He will receive support in the form of stipend plus one-credit of tuition for summer 2015.
PI Will Cantrell and Co-PIs Claudio Mazzoleni and Raymond Shaw (Physics/EPSSI), “A Coupled Laboratory and Modeling Investigation of the Mechanisms of Primary Ice Production in Arctic Stratus Clouds,” US Department of Energy
PI Claudio Mazzoleni (Physics/EPSSI) and Co-PIs Lynn Mazzoleni (Chem/EPSSI), Will Cantrell (Physics/EPSSI), Judith Perlinegr (CEE/EPSSI), Sarah Green (Chem/EPSSI) and Bo Zhang (CEE/EPSSI), “Free Tropospheric and Marine Boundary Layer Aerosol Interactions in the North Atlantic,” US DOE
Read more at Tech Today.
PI Andrew Barnard and Co-PIs Scott Miers (MEEM) and Yoke Khin Yap (Physics), “Carbon Nanotube Speaker Efficiency Improvement and Prototype Design,” US Department of Defense, Office of Naval Research
PI Will Cantrell (Physics/EPSSI), “Collaborative Research: Bottom-Up Cloud Modeling: Building Molecular Level Foundations for Heterogeneous Ice Nucleation in Clouds,” Clemson University
PI Ranjit Pati (Physics), “Collaborative Research: Parallel Fabrication of CNT-Based Spin Transistors Toward Post-CMOS Molecular Scale Spin Logic,” NSF
Atlantic observatory faces rocky future
Mountaintop facility in Azores can track pollution from North America.
For the past 13 years, atmospheric scientists have been tasting the air above Pico Mountain, a dormant volcano in the Azores archipelago. From a perch at 2,225 metres, just below the mountain’s summit, the Pico observatory can dip directly into the gases and particulates that sweep across the Atlantic Ocean.
Other high-altitude stations in the oceans, such as on the Canary Islands, are closer to Africa, and their measurements can be influenced by dust and particles from biomass burning, says Claudio Mazzoleni, an atmospheric physicist at MTU. “In the case of Pico it’s north enough to get mostly air coming from North America and travelling to Europe,” he says. “There isn’t any other place that is on that path at that elevation.”
Nature, one of the top science journals in the world, published a news article about the Pico Observatory atmospheric research of Associate Professor Claudio Mazzoleni (Physics) and Associate Professor Lynn Mazzoleni (Chem).
It’s a rain race out there. In the meteorological equivalent of breaking the light-speed barrier, new research shows that the smaller droplets in a rainstorm often surpass what appears to be the speed limit for rain.
“What surprised us was not so much seeing the superterminal drops,” says physicist and co-author Raymond Shaw of MTU, “but seeing the deeper, compelling patterns.” He explains that as rain falls harder, the fraction of superterminal, or speeding, small drops increases.
Further evidence for super-terminal raindrops
M. L. Larsen1, A. B. Kostinski and A.R. Jameson
A network of optical disdrometers (including laser precipitation monitors and a 2-dimensional video disdrometer) was utilized to determine whether the recent reports of “super-terminal” raindrops were spurious results of drop breakup occurring on instrumentation. Results unequivocally show that super-terminal raindrops at small (less than 1 mm) sizes are ubiquitous, are measurable over an extended area, and appear in every rain event investigated.
Confirmed: Some raindrops fall faster than they should
Five years ago, scientists reported that raindrops, especially small ones, often fall through the air much faster than they should. Some researchers have suggested that these “super-terminal” raindrops (ones traveling more than 30% faster than their terminal velocity, at which air resistance prevents further acceleration due to gravity) were fragments of larger drops that had splattered off the team’s instruments, with the smaller bits retaining the speed the larger drop had before it struck the instrument. But new research hints that the speedier-than-expected drops are the result of natural processes—and that, moreover, they make up a substantial fraction of rainfall.
More than a dozen Michigan Tech faculty members and researchers have gone on the record in support of a ballot initiative designed to give a big boost to the state’s renewable energy industry. If passed by the voters in November, the initiative would require that 25 percent of Michigan’s electricity be generated using renewable energy sources by the year 2025. Among the signers is assistant professor of physics Claudio Mazzoleni. READ MORE