Aktuelle Meldungen / en-gb Uni Köln Sun, 17 Feb 2019 18:37:06 +0100 Sun, 17 Feb 2019 18:37:06 +0100 TYPO3 EXT:news news-1504 Mon, 04 Feb 2019 13:47:00 +0100 American Geophysical Union Fall Meeting (AGU) 2018 https://www.geosciences.uni-koeln.de/index.php?id=15612&tx_news_pi1%5Bnews%5D=1504&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&cHash=710bd61cab9a715e0c8c20a19e95f47d 10 - 14 Dec 2018, Washington DC, USA The American Geophysical Union’s Fall Meeting is one of the largest gatherings of researchers in Geoscience, with varying expertise, in the world. The 2018 Fall Meeting took place in the Walter E. Washington Conference Center in Washington DC, from December 10th to December 14th. The opportunity to learn about the different research projects and methods being used across the world is one of the major benefits of attending this meeting.

The poster I presented, as part of the ‘Boundary Layer Clouds and Atmosphere, Biosphere, Land, and Ocean Interactions’ session, described the methods I have used for generating my simulations and the methods used for analyzing the results of these simulations. A benefit of having a poster at the AGU was that it allowed a number of fellow researchers to come up to the poster to discuss the research methods I have been using and my results. As a student I was also able to submit my poster to the Outstanding Student Presentation Awards (OSPA). As part of the OSPA, two judges stopped by my poster to ask questions and judge different aspects of the poster and presentation. A benefit of participating in the OSPA meant that I got detailed feedback on my poster and how I presented the information on my work.

Aside from presenting my poster at the AGU, I also took the opportunity to attend several talks that related to my research interests, including sessions on ‘Progresses in Understanding Atmospheric Convection’, ‘Convective Clouds: Processes, Dynamics, and Links to Weather and Climate’, and the oral presentations in the ‘Boundary Layer Clouds and Atmosphere, Biosphere, Land, and Ocean Interactions’ session, to name a few.

The AGU is a great opportunity to meet fellow researchers and gain insights into their research methods. It also allows researchers to gain insight into different research fields that are very different to their current research fields. With presentations on mineral and rock physics, seismology, solar and heiliospheric physics, and natural hazards, to name a few, that are open to all attendees it is interesting to be able to learn about the scientific research being conducted in the different fields covered by geoscience.

I would like to thank the GSGS for funding my trip to the AGU. By attending this conference I have increased my knowledge on current work being conducted in research fields related to my research topic which will benefit my work in the future.

Stephanie Reilly
PhD Student

Author Project: Fast Response of Boundary Layer to Climate Change

Presentation Type/Title: Poster – Using Sparse Field Campaign Data to make LES more Representative of Local Conditions
Link to Presentation: https://agu.confex.com/agu/fm18/meetingapp.cgi/Paper/372605

GSGS Travel Grant Reports
news-1505 Fri, 01 Feb 2019 14:02:00 +0100 Styliani Kyrikou, Start-up Honours Grant 2018 https://www.geosciences.uni-koeln.de/index.php?id=15612&tx_news_pi1%5Bnews%5D=1505&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&cHash=22bafd8d9a5b6e3f476e2473c6220ba0 Late Glacial and Holocene vegetation history of the Ohrid region and pollen-inferred climate variability May – September 2018 Through the start-up honours grant I received from the Graduate School of Geosciences (GSGS) for five months, I engaged actively in the project entitled ‘Late Glacial and Holocene vegetation history of the Ohrid region and pollen-inferred climate variability’ as a Research Assistant at the Institute of Geology and Mineralogy at the University of Cologne. This project was realized within the framework of the International Continental Scientific Drilling (ICDP) at Lake Ohrid (SCOPSCO Project, coordinated by Bernd Wagner) and forms an integral part of the ICDP funded project ‘Insights into the origin of a Mediterranean biodiversity hotspot based on palynological and biomarker analyses of Lake Ohrid sediments from Early Pleistocene (> 1.2 Ma)’ lead by Konstantinos Panagiotopoulos (PA 2664/2-3). Lake Ohrid (FYROM and Albania) is the oldest extant lake in Europe (1.4 Ma) and is a key site for paleoenvironmental and paleoclimate research in the north Mediterranean region.

The main research objectives of this five-month project were: (1) to study the vegetation history at Ohrid over the past 17 ka by means of palynological analysis, (2) to improve our understanding of local plant ecosystem response to short-term climatic oscillations during the Late Glacial transition and the Holocene, and (3) to infer regional vegetation patterns and climatic gradients by comparing the new Lake Ohrid pollen record with other regional pollen records such as Prespa, Maliq and Elefsis.

A total of 110 pollen samples were processed in the pollen laboratory of the National and Kapodistrian University of Athens (in close collaboration with Katerina Kouli) and in the pollen laboratory of the Institute of Geography at the University of Cologne (in collaboration with Frank Schäbitz). A minimum pollen sum of 500 hundred terrestrial pollen grains excluding pines was counted per sample. Sample cross-counting was performed in order to ensure the compatibility with other study intervals at Ohrid or neighboring pollen records (i.e. Lake Prespa). First results were presented at the European Palaeobotany and Palynology Conference (EPPC) in August 2018 at Dublin thanks to a GSGS travel grant I received (Kyrikou et al., 2018).

A high-resolution pollen record from Lake Ohrid (DEEP) will be published within the following months, while a subset of the total samples analyzed are included in a manuscript entitled ‘Landscape threshold crossed on the Balkan Peninsula during the Early to mid-Holocene’ submitted to the Global and Planetary Change journal (Francke et al., in review).

I would like to thank the Graduate School of Geosciences and its Steering Committee for this great opportunity they gave to me for accomplishing my research project and working along with other members of the SCOPSCO science team. I would also like to thank my supervisors Professor Dr. Bernd Wagner and Dr. Konstantinos Panagiotopoulos and my advisor Prof. Dr. Katerina Kouli for their support, guidance and constructive comments. Last but not least, this GSGS start-up honours grant paved the way to find a future PhD position by creating a valuable network at the University of Cologne as well as giving interviews within Germany and abroad.

Styliani Kyrikou, Katerina Kouli, Alexander Francke, Niklas Leicher, Bernd Wagner, Konstantinos Panagiotopoulos (2018): Late Glacial and Holocene vegetation history of south Balkan: a comparison between the new pollen archives of Lakes Ohrid and Prespa. EPPC 2018, Dublin 12-17 August 2018. Book of abstracts pp.47. (http://eppc2018.ie/wp-content/uploads/2018/08/Abstracts-Book-Download-Version.pdf).

Alexander Francke, Anthony Dosseto, Konstantinos Panagiotopoulos, Niklas Leicher Jack H. Lacey, Styliani Kyrikou, Bernd Wagner, Giovanni Zanchetta, Katerina Kouli, and Melanie J. Leng (in review). Landscape threshold crossed on the Balkan Peninsula during the Early to Mid-Holocene. Journal of Global and Planetary Change.


Styliani Kyrikou
Institute of Geology and Mineralogy, University of Cologne

ICDP Project: ‘Insights into the origin of a Mediterranean biodiversity hotspot based on palynological and biomarker analyses of Lake Ohrid sediments from Early Pleistocene (> 1.2 Ma)’
Research project: ‘Late Glacial and Holocene vegetation history of the Ohrid region and pollen-inferred climate variability’

Supervisors: Konstantinos Panagiotopoulos, Bernd Wagner (University of Cologne)
Advisor: Katerina Kouli (National and Kapodistrian University of Athens)

GSGS Start-up Honours Grant Reports
news-1482 Tue, 22 Jan 2019 14:23:36 +0100 15th Conference on Cloud Physics/15th Conference on Atmospheric Radiation https://www.geosciences.uni-koeln.de/index.php?id=15612&tx_news_pi1%5Bnews%5D=1482&tx_news_pi1%5Bcontroller%5D=News&tx_news_pi1%5Baction%5D=detail&cHash=8a1756164ccada16d095232f3206ca4f 9 - 13 July 2018, Vancouver, BC, Canada The American Meteorological Society organizes the two conferences, Conference on Cloud Physics and Conference on Atmospheric Radiation, jointly every four years. In 2018 the conference took place in Vancouver, Canada, which is a very nice city that we had a chance to explore before and after the conference. The event itself was a medium sized conference, with about 300-400 participants and over 800 submitted abstracts. For most of the week there were two parallel sessions, one for clouds and one for radiation, but some of the sessions as well as the poster sessions were joint. The topics are so interconnected, that it makes sense to arrange the conferences together, but sometimes it is difficult to choose which talk to attend, as there are many very relevant and interesting topics.

There were only two posters sessions, with a total number of 297 poster presentations. You can imagine how busy those sessions were! My presentation was in the first poster session of the week as part of the “Mixed-Phase Clouds”-session. I was positively surprised by how many people were interested in my work, and during the session I had no time to see any other posters because I was busy at my poster from beginning to the end. I had several nice conversations, and got some very good feedback and ideas for my work. Luckily the posters were hanging for the entire day and the next day as well, so I had the possibility to check out some of the work by others. Not only were poster sessions busy, but the breaks too. Many researcher who work in the same topic as I do and many of the people I actively collaborate with were attending the conference, and the breaks were mostly spent with exchanging recent results and ideas about future work.

After the 5 days I was overloaded with impressions and ideas. I learned an unbelievable amount listening to the talks, and had many interesting discussions. The evenings were spent with old and new friends and colleagues, and almost without exception with great food. All in all it was an amazing trip, and quite likely one of the highlights of my PhD.

Rosa Gierens
PhD Student

PhD project: “Micro-physical processes in Arctic mixed phase clouds”

Institute for Geophysics and Meteorology

Interactions between Arctic boundary layer and low level mixed-phase clouds (Poster)
Abstract available at http://gop.meteo.uni-koeln.de/ag_crewell/lib/exe/fetch.php?media=abstract_gierens-et-al_ams2018.pdf

GSGS Travel Grant Reports