Newsletter #3

The third ATTO newsletter is here! It features announcements regarding the ATTO workshop (have you registered yet? No? Click here!), a new talk series for ATTO scientists at INPA and a breakdown of new publications. The “Meet the team” series is also back, bigger and better, now including project veterans and newbies alike!

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New Publication: Footprint region of ATTO

Christopher Pöhlker and co-authors published an extensive new paper, characterizing the footprint region of ATTO. They hope that fellow researchers in the Amazon region can use this publication as resource and reference work to embed ATTO observations into a larger context of Amazonian deforestation and land use change. Pöhlker et al. published the paper Open Access in Atmospheric Chemistry and Physics Volume 19.

In their study, they used backward trajectories to first define the ATTO footprint region. With this modeling approach, you can trace air masses in the atmosphere back along their presumed transport path to ATTO. Because the source regions of observed trace gases and aerosols might be thousands of kilometers away, they did not necessarily trace it all the way back. Instead, they defined the region on the South American continent over which the atmosphere interacts most intensely with the land surface below. Such interactions might be the exchange of gases, taking up water vapor or releasing it through precipitation, or altering the aerosol content (e.g. washing out of aerosols with rain or taking up new aerosols that are dispersed into the atmosphere).

Wind direction and speed mainly shape the location and size of the footprint region. At ATTO, this largely depends on the seasonal shift of the intertropical convergence zone (ITCZ). The authors found a northeasterly path during the wet season, with the air moving largely over pristine rainforest. During the dry season, the air takes a more southeasterly path within the influence of agricultural areas. Secondly, they further characterized this ATTO footprint area. They looked at it in terms of climate, land cover and -use, fire regimes and present-day and future deforestation scenarios. They placed a large emphasis on human-caused transformations in Amazonia and how this will influence data observed at ATTO. While it is still possible to study unperturbed rainforest today, they conclude that this will likely decrease in the future. In contrast, atmospheric signals from human-made and climate-change-related forest perturbations will increase in frequency and intensity.

Two PhD projects available at MPI-BGC Jena

Both PhD project is part of the International Max Planck Research School for Global Biogeochemical Cycles (IMPRS-gBGC) at the Max-Planck-Institute for Biogeochemistry in Jena, Germany.

In cooperation with the Friedrich Schiller University Jena, the Max Planck Institute for Biogeochemistry houses a unique and flexible research program that grants German and foreign students a broad selection of learning opportunities while still maintaining a research focus. The IMPRS-gBGC offers a PhD program specializing in global biogeochemistry and related Earth System sciences.

The first project is directly related to ATTO. Supervisors are Dr. Jost Lavric and Prof. Susan Trumbore. The second project is partially related to ATTO, but will also incoorporate other research projects. Supervisors are Gerd Gleixner and Georg Pohnert.

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Job offer: postdoc in atmospheric science

We are looking for a postdoctoral researcher to support our team with the challenging and exciting operation of the aerosol measurements at the ATTO site as well as the analysis and publication of the unique measurement data.

The successful candidate will be part of an international team conducting and analysing the long-term observations as well as in-depth process studies of atmospheric aerosols and their links to rainforest ecology, cloud microphysics and hydrological cycling in the Amazon.

Main working location will be Mainz, Germany, with frequent participation in field trips to the Amazon.

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2019 ATTO Meeting – Registration now OPEN!

We’re pleased to announce that for this year’s ATTO Meeting registration is NOW OPEN! INPA will be our host in Manaus on September 16 – 18. We kindly ask you to please to use the short registration form in time to ensure that the organizational team can put together the best possible meeting for all of us.

The focus of the meeting will be scientific exchange, therefore it is open to all members of ATTO consortium, incl. students and early career scientists. We hope you will be able to attend in large numbers and we can have many fruitful discussions over the three days. We want to give the maximum amount of people the chance to present their research. Therefore, most of the time will be dedicated to poster sessions, preceded by < 3 min poster presentations.

Head over to the meeting’s subpage for more details. We will post information about the schedule and side events will be there as soon as they become available. So check back or follow along on our social media channels.