Cloud Processes Group News
August 28-31: Sue, Randy, and Brenda attend the AMS 40th Conference on Radar Meteorology in Minneapolis, Minnesota. Sue's presentation discussed the observational capabilities and scientific approach of the INCUS mission. Randy presented work using GPM data to develop a new Ka only machine learning classifier of multiple scattering events. Brenda presented on using ground-based radar to validate the INCUS delta-t technique.
August 30: Randy wins an AMS Editor's Award for his reviews in Artificial Intelligence for the Earth Systems and Weather and Forecasting. The award was given "For providing thorough, excellent, prompt, and constructive reviews that help the authors improve their papers". Way to go Randy!
August 21-25: Bee attends the NASA Summer School on Satellite Observations and Climate Models organized by JPL and Caltech. Bee was one of 24 graduate students and postdoctoral scientists selected for the week-long program involving lectures and discussion on the future of climate science.
August 24: Leah wins an Early Career Outstanding Presentation Award for her presentation "Variability Within and Among Midlatitude Cold Pools" at the AMS Mesoscale Conference. Using data collected during C3LOUD-Ex and BACS, Leah showed that the vertical structure of temperature and winds in cold pools differs between different types of parent convection. Water vapor mixing ratio perturbations in these midlatitude cold pools can be positive, negative, or even change sign with height. Leah also presented results from the FESSTVaL field campaign and model simulations which show that cold pools enhance the spatial variability of temperature. Congratulations Leah!
August 21: With the start of the fall semester, we welcome Rachael Auth to the group as a new master's student! Rachael joins us from the University of Oklahoma, where she received her BS. At OU, Rachael worked with Cameron Homeyer on measuring stratosphere-to-troposphere transport using ozonesondes.
July 21: Ben and Nick both win Outstanding Student Presentation Awards for their oral presentations at the 20th AMS Conference on Mesoscale Processes. This is a very proud day for our research group! Ben's talk showed that differential heating from land surface heterogeneities can create boundary layer convergence lines. This convergence preferentially initiates convection at the boundary between different land surfaces. Accumulated rainfall is increased and more spatially variable compared to a uniform land surface. The impacts of topographic slope and surface roughness on haboobs were discussed in Nick's talk. Steeper slopes drive stronger mountain-valley circulations leading to faster uphill propagation and slower downhill propagation of haboobs. Increased surface roughness slowed haboobs due to greater surface heat and momentum fluxes.Congratulations Nick and Ben!!
July 17-21: Ben, Christine, Leah, Nick, and Peter all attend the 20th AMS Conference on Mesoscale Processes in Madison, Wisconsin. Research presented included modeling studies supporting the INCUS mission and TRACER field campaign, along with results from BACS and C3LOUD-Ex.
June 26: Sue, Steve, and group alum Aryeh are all highlighted in an article discussing their participation in the TRacking Aerosol Convection interactions ExpeRiment (TRACER). Research conducted by Sue, Peter, and others helped form the foundation of the experiment. Steve is working as a part of a model intercomparison project looking at aerosol-convection interactions. Aryeh was part of the forecasting team, and is now helping to lead a paper on that subject.
June 16: BACS-II enters its final week already a huge success! With storms and cold pools occurring every deployment day so far, the drones and sondes team has gathered lots of fascinating data. Here's to the last week continuing this trend!
May 30: Bee, Ben, Christine, Nick, Charles, Leah, Allie Mazurek, Lexi Sherman, Tyler Barbero, and Jacob Escobedo are the drones and sondes team for BACS-II! Along with observations from aerosol and chemisty teams, we are spending May and June sampling cold pools with radiosondes and drones to understand how bioaerosols are lofted and vertically distributed by storms, along with potential feedbacks.
May 20: Colorado State University celebrates Women in Aerospace Day by honoring amazing female faculty, staff, and students making aerospace history. Included among them is Sue, the PI of INCUS and the first woman to lead a NASA Earth Venture Mission.
April 22: Bee, Ben, Christine, Nick, Charles, and Jennie all participate in the Little Shop of Physics, along with many other volunteers from Atmospheric Science. We used fun demos to introduce our science to K-12 students.
April 21: Bee receives the Herbert Riehl Memorial Award for her paper “Aerosol breezes drive cloud and precipitation increases” recently published in Nature Communications. The Riehl award is given by the department to a masters or early-PhD student who submits the best manuscript for publication in the past 18 months. Bee's research showed how a mesoscale gradient in aerosol could drive a circulation similar to a sea-breeze. Congratulations Bee for receiving this well-earned honor!
March 10: Jennie Bukowski, who received her PhD from the van den Heever group in 2021, re-joins the group as a postdoctoral scholar working on INCUS. Jennie was working as a joint postdoc for UCLA and NCAR. Welcome back to the group Jennie!
February 20: Randy Chase joins the group as a research scientist working on INCUS. Randy joins us from OU where he worked as a postdoc. Welcome to the group Randy!
Febuary 2: Christine wins an Outstanding Student Presentation Award for her talk "Transport and Mixing of Bioaerosols by Successive Cold Pools" given at the 103rd AMS Annual Meeting this January. Christine ran idealized simulations of a squall line case our group observed during BACS-I last year. She found that background aerosols were distributed the most by the passage of an initial cold pool, while aerosols emitted after that initial cold pool can be lofted higher by a succeeding cold pool. Congratulations Christine on this well earned honor!
Febuary 2: Atmospheric science students, including BACS team members Bee, Allie Mazurek from the Schumacher group, and Daniel Veloso-Águila from the Maloney and Rasmussen groups, did an outreach event at AXIS International Academy. Kindergarteners in a Spanish language immersion class got to hear (en español) about extreme weather, climate, and how we use our drones to make measurements in the field!
January 17: Itinderjot (IT) Singh joins the group as a postdoc working on INCUS. IT joins us from Russ Schumacher's group. Welcome to the group IT!
January 8-12: Bee, Leah, Ben, Peter, Steve, Christine, Nick, Bowen, and new group member IT Singh all attend the 103rd AMS Annual Meeting in Denver, CO. Our group’s presentation topics ranged from the variability of cold pools we have observed during C3LOUD-Ex and BACS, to lake effect snow, to mesoscale circulations driven by aerosols.
December 29: Rick is featured in the December 2022 edition of “Precip Folks” by the AGU Precipitation Technical Committee. Please read this interesting profile about Rick and his activities both inside and outside the department!
December 7: Bee is awarded the David L. Dietrich Honorary Scholarship. The Dietrich Scholarship is awarded annually to a student who has demonstrated outstanding research and education in the study of air quality.
December 1: Bastian Kirsch departs back home to Hamburg, Germany after visiting our group for over a month. We had many great discussions about cold pools, and will continue our collaboration virtually! Thanks for visiting Bastian, we hope to see you again soon!
October 25: Bastian Kirsch begins a visit to our group which will last the next few weeks. Bastian recently received his PhD from the University of Hamburg and the Max Plank Institute for Meteorology, working on high spatial resolution cold pool observations from the FESSTVaL field campaign. Welcome Bastian!
October 11-13: The 2022 INCUS Science Team Meeting takes place at the new CIRA Commons building on the hill. Over 30 presenters from across Colorado, the US, and the world discussed a variety of critical topics including the algorithmic approach, lessons from previous satellite missions, relevant field campaign observations, mission modeling, the data center approach, and what we will learn from INCUS. On Tuesday evening, a reception and dinner was held at the Canvas Stadium Club where CSU President Rick Miranda, INCUS Program Executive Ben Kim, INCUS PI Sue van den Heever, Chief Scientist of JPL's Earth Science and Technology Directorate Duane Waliser, WSCOE Dean David McLean, and Department Head Eric Maloney all spoke. Between the meeting and dinner, there were around 100 total attendees! Read a SOURCE article about the meeting here.
September 1: Bee successfully defends her master's thesis titled "Processes Driving Shallow Convective Development and Their Interactions with Aerosols: Aerosol Transport and Aerosol Breezes"! Congratulations Bee! Bee will continue in the group as a PhD student.
August 22: With the start of the fall semester, the van den Heever group welcomes many new members (several of which joined our group over the summer)! Dr. Peter Marinescu, who received his PhD from the van den Heever group in 2020, re-joins us to work as a Research Scientist on INCUS following a postdoc position CIRA. Dr. Brenda Dolan also joins us part time as an INCUS Research Scientist, while also working the research groups of Professors Michael Bell and Kristen Rasmussen. Brenda previously worked in Professor Steve Rutledge's group. Rick Schulte, who recently received his PhD from from Chris Kummerow's group, is working as a postdoctoral fellow, and is supported by both INCUS and CloudSat. Charles Davis received his B.S. in Physics from the University of Pennsylvania and was recently working at the California Policy Lab, before starting this semester as an MS student in our group. Finally, Dr. Katy Burger joins our group as a research associate working on INCUS. We extend a warm welcome to all of the new van den Heever group members!
July 19: Congratulations are in order for the newly minted Dr. Alex Sokolowsky! Alex successfully defended his PhD thesis titled “Morphology, Lifecycles, and Environmental Sensitivities of Tropical Trimodal Convection”.
July 8: Sean has accepted a faulty position at the University of Alabama in Huntsville. He will start as a tenure-track Assistant Professor in January 2023. Congratulations Sean!!
June 23: Sean successfully defended his doctoral dissertation “Examining the Impacts of Convective Environments on Storms Using Observations and Numerical Models”! Congratulations to the new Dr. Freeman! Sean is now a postdoctoral student working on the INCUS project.
May 24: On the first IOP of the BACS field campaign, two cold pools were extensively sampled by the team with drones and radiosondes. We hope to have many more great cases like this over the next few weeks!
May 2: Sue receives the George T. Abell Award for Outstanding Research Faculty from the CSU Walter Scott, Jr. College of Engineering. The award citation reads, ”In recognition of wide-ranging and high-impact studies of the development and impacts of atmospheric convective storms through numerical simulations as well as in situ and remote sensing observations, including leadership of the new NASA INCUS satellite mission.” Congratulations Sue! See also this department news story.
April 1: Sue is elected to the rank of University Distinguished Professor (UDP), the highest academic recognition awarded by Colorado State University. There are only about 20 UDPs across all of CSU. Congratulations to Sue for this well-earned honor! Read more here.
March 28: BACS team members Bee, Sean, Nick, and Allie Mazurek (Schumacher Group) visited Loveland High School to discuss science and demonstrate the equipment we will use during the upcoming BACS field campaign. We were invited by Lance Niño, a graduate of the CSU Atmospheric Science Department who is now a student teacher at Loveland HS. We launched a radiosonde and flew one of our drones to exhibit how we will take measurements during BACS to two of Lance's meteorology classes along with a third environmental science class. Read more about this outreach event in SOURCE.
February 9: Our C3LOUD-Ex research is featured on the cover of the January 2022 issue of BAMS! Read the full associated article here, and the BAMS digital version with quotes from group members and more beautiful pictures here (access to BAMS required, article starts on page 25). When asked what they would like readers to learn from this article, Sue responded “I would like readers to learn that: (1) The Flying Curtain is a novel and highly effective approach to measure cold pool properties. (2) Cold pools are spatially and temporally heterogeneous on scales of order ~100 m. (3) A combination of instrumentation provides the best results in observing convective updrafts.” While Sean responded “I want readers to know our novel Flying Curtain drone deployment strategy observed that cold pools vary on spatial scales of 100 m to 1 km. This result implies that numerical models hoping to capture cold pool processes must be operated at a grid spacing capable of resolving those features.”
January 28: Bee wins the second place Student Oral Presentation Award at the AMS Mesoscale Processes Conference during the AMS Annual Meeting. Congratulations Bee! Her presentation titled “Updraft Structure and Detrainment in Transient and Terminal Congestus Clouds” investigated the difference between terminal (capped by the freezing level inversion) and transient (overshooting the FL inversion) congestus clouds by tracking and compositing over a thousand updrafts in an idealized LES. Bee's results looked at the differences in terms of vertical acceleration budget as well as the detrainment of aerosol & water vapor from congestus clouds. See the list of all students in the department who won awards at the AMS and AGU meetings here.
January 23-27: At the AMS 2022 Annual Meeting Bowen, Bee, Ben, Sean, Alex, Steve, and Sue present on topics ranging from tobac, use of GPUs in atmospheric modeling, and cloud-aerosol interactions in the Philippines and West Africa.Click here for news from 2021