جست‌وجوی استاد و پژوهشگر

• Atmospheric remote sensing
• Aerosol-cloud interactions
• Ice formation processes
• +۳ مورد دیگر

Dr. Patric Seifert is a Scientist at the Leibniz Institute for Tropospheric Research (TROPOS) in Leipzig, Germany, where he has been working since 2010. He is affiliated with the Remote Sensing of Atmospheric Processes department and leads the Ground-Based Remote Sensing group. His work focuses on atmospheric remote sensing, particularly using the LACROS instrument suite for aerosol and cloud observations. He also maintains a strong connection with the University of Leipzig, where he earned his PhD and currently teaches courses on cloud radar and remote sensing to master's students. PhD in Meteorology from University of Leipzig (2010) Diploma in Meteorology from University of Leipzig (2006) Student of Meteorology at University of Leipzig (2000-2006) Dr. Seifert's research centers on understanding aerosol-cloud interactions, particularly how aerosols influence ice formation processes in the atmosphere. His work involves extensive use of ground-based remote sensing instruments, including the LACROS suite, to observe cloud and aerosol properties. He investigates how aerosol particles affect numerical weather forecast models and develops methods to derive continuous datasets of aerosol and cloud microphysical properties through the Cloudnet data processing scheme. His current research spans multiple international projects across diverse geographical locations including the Arctic, Southern Ocean, Cyprus, and Antarctica. Analysis of Dr. Seifert's recent publications reveals a strong focus on cloud microphysics, particularly mixed-phase and ice clouds. His work frequently employs advanced remote sensing techniques including polarimetric radar and lidar to study ice nucleation processes, particle shape distribution, and aerosol-cloud interactions. A significant portion of his recent research relates to the MOSAiC expedition in the Arctic, examining cloud life cycles and the impact of wildfire smoke on cirrus formation. His publications also highlight innovative approaches to cloud seeding experiments using UAVs and the development of new methods for analyzing cloud radar data. Member of Deutsche Meteorologische Gesellschaft (DMG) since 2006 Ordinary Member of the DFG Transregio programme Arctic Amplification: Climate Relevant Atmospheric and Surface Processes and Feedback Mechanisms (AC3) since 2021 Dr. Seifert actively collaborates on numerous international research projects including ACTRIS/Cloudnet, DACAPO-PESO (focusing on the Southern Ocean), PICNICC (examining hemispheric cloud contrasts), SPOMC (polarimetric observations of clouds), COALA (Antarctic observations), ATMO-ACCESS, ACTRIS-D, and EXCELSIOR. His work often involves mentoring students and conducting outreach activities to demonstrate TROPOS's contributions to understanding aerosol-cloud interactions and career opportunities in atmospheric sciences. He has been instrumental in operating and extending the LACROS instrument suite for various field campaigns around the world. Dr. Seifert leads the Ground-Based Remote Sensing group at TROPOS, which operates the LACROS (Leipzig Aerosol and Cloud Remote Observations System) infrastructure. This mobile observation platform has been deployed in diverse environments including Punta Arenas, Chile for the DACAPO-PESO campaign, Cyprus for multiple projects, and Antarctica for the COALA campaign. His team collaborates with international partners across Europe, New Zealand, and the Americas to study atmospheric processes in different climatic regions, with particular emphasis on aerosol-cloud interactions in pristine environments.

Albert Ansmannمشاهده پروفایل

دانشیار

• Atmospheric Remote Sensing
• Lidar Technology
• Aerosol-Cloud Interactions
• +۴ مورد دیگر

Dr. Albert Ansmann is a distinguished Associate Professor at the University of Leipzig and Head of the Ground-Based Remote Sensing Working Group at the Leibniz Institute for Tropospheric Research (TROPOS) in Leipzig, Germany. His career spans over three decades dedicated to advancing atmospheric remote sensing technologies and understanding aerosol-cloud interactions. At TROPOS, he leads the Ground-based Remote Sensing Group within the Department of Remote Sensing of Atmospheric Processes. Leibniz Institute for Tropospheric Research (TROPOS): Head of Ground-Based Remote Sensing Working Group since 1992 University of Leipzig: Associate Professor since 2005, Private Lecturer since 1999 Max Planck Institute for Meteorology: PhD research (1984-1988) Research Center Geesthacht: Postdoctoral researcher (1989-1992) Dr. Ansmann completed his Meteorology studies at the University of Hamburg (1977-1984) and earned his PhD from the Max Planck Institute for Meteorology in Hamburg (1984-1988). He achieved his Habilitation at the University of Leipzig in 1999, which qualified him as a university professor. His research focuses on developing lidar instruments and methodologies for investigating aerosols, clouds, and aerosol-cloud interactions, with particular emphasis on heterogeneous ice formation processes. His work has significantly advanced our understanding of mineral dust transport, Saharan aerosol long-range transport, and their impacts on cloud microphysics and climate. Dr. Ansmann's research integrates field campaigns across diverse geographical regions including Portugal, Morocco, Cape Verde, and the Arctic. The 15 most recent publications reveal a strong focus on Arctic atmospheric processes, wildfire smoke impacts on cirrus formation, mineral dust properties, and advanced lidar methodologies. His research increasingly addresses climate-relevant questions through international collaborations such as the MOSAiC expedition, SALTRACE, and BACCHUS projects, demonstrating a shift toward understanding the climate implications of aerosol-cloud interactions in polar regions. Inaba Prize (1994) for outstanding research on Raman lidar observation of the stratospheric Pinatubo aerosol layer American Geophysical Union Editor's Citation for Excellence in Refereeing (2005, 2010) Dr. Ansmann has been actively involved in mentoring doctoral students through seminars at TROPOS and lectures on active remote sensing at the University of Leipzig. His research has been supported through numerous international projects including SALTRACE, BACCHUS, and participation in major field campaigns across Europe, Africa, and polar regions. He has served on scientific steering committees, including the EU BACCHUS Project (2013-2017), and as guest editor for Atmospheric Measurement Techniques (2013-2015). The Ground-based Remote Sensing Group at TROPOS, which Dr. Ansmann leads, operates advanced lidar systems for atmospheric observations and participates in international networks like EARLINET. His team's work integrates ground-based, airborne, and satellite observations to address fundamental questions about aerosol-cloud interactions and their climate implications, with particular focus on polar regions through the MOSAiC expedition and related research.

Pedro Nunesمشاهده پروفایل

پژوهشگر ارشد

• Ultrafast Electron Diffraction
• Time-Resolved Molecular Dynamics
• Photoinduced Chemistry
• +۳ مورد دیگر

Pedro Nunes is a Research Fellow at Diamond Light Source, joining in December 2022 as a Postdoctoral Research Associate on the HeXI project within the Macromolecular Crystallography group. His work focuses on developing high-energy electron diffraction instrumentation and time-resolved methodologies for molecular dynamics studies. He holds a Master's in Chemistry (MChem) from the University of Manchester (2014) and a PhD in Physical Chemistry from the University of York (2018). His doctoral research established a roadmap for molecular movie recording using gas-phase, time-resolved, and ultrafast electron diffraction techniques. Nunes specializes in ultrafast electron diffraction for photoinduced molecular dynamics, particularly in liquid-phase systems. His pioneering work at SLAC National Laboratory included designing the first instrument capable of imaging photochemical reactions in liquids. Current research emphasizes instrument development for the HeXI project and advancing liquid-sheet technologies for sample delivery. Analysis of his 15 most recent publications (2019-2023) reveals consistent innovation in ultrafast diffraction methodologies, with dominant themes in liquid-phase reaction imaging, conformer-specific dynamics, and instrumentation breakthroughs. Key contributions include liquid-sheet nozzle design, MeV electron diffraction for aqueous systems, and structural studies of photochemical ring-opening reactions. Nunes collaborates extensively with the MeV UED group at SLAC, Prof. Martin Centurion (University of Nebraska-Lincoln), Prof. Daniel Rolles (Kansas State University), and James Parkhurst (Rosalind Franklin Institute). He is integral to Diamond's HeXI project team, driving next-generation capabilities in macromolecular crystallography.