From steven.lade at su.se Sun Feb 4 08:21:16 2024 From: steven.lade at su.se (Steven Lade) Date: Sun, 4 Feb 2024 07:21:16 +0000 Subject: [Bolincentret-at-su.se] Fw: [WegHaus] Job opportunity at University of Graz, Austria: University assistant with doctorate In-Reply-To: References: , Message-ID: <1bd69e24ba994542a9b781cd00f9f94f@su.se> ________________________________ At the Wegener Center for Climate and Global Change in Graz, we’re currently seeking applicants for a University Assistant position (equivalent to lecturer or assistant professor without tenure track) in the Atmospheric Remote Sensing and Climate System research group. 6 years, full-time. Starting April 2024. Application deadline 18 February. Link below. Would you mind forwarding to relevant lists/individuals, please? Many thanks, Andrew _______ Dr Andrew K. Ringsmuth +43 677 6372 6477 | a.k.ringsmuth at gmail.com andrewringsmuth.com Vidarebefordrat mejl: Från: "Zechner, Lena (lena.zechner at uni-graz.at)" Ämne: [WegHaus] Job opportunity at University of Graz, Austria: University assistant with doctorate Datum: 31 januari 2024 12:59:37 CET Till: "weghaus at list.uni-graz.at" , "forum.climatechangegraz at list.uni-graz.at" Dear colleagues, I would like to draw your attention to the following job advertisement: We are currently looking for an University assistant with doctorate 40 hours a week, temporary employment for 6 years, position to be filled as of April 2024. Application deadline: 18.2.2024 Please forward in your networks – thank you! Best regards, Lena Zechner Lena Zechner, M.A. Universität Graz Wegener Center für Klima und Globalen Wandel Brandhofgasse 5, 8010 Graz Tel.: +43 (0) 316 380 - 8429 lena.zechner(at)uni-graz.at Pronouns: she/her. Some people identify with or use pronouns that may not be obvious based on their appearance and/or name. By stating mine clearly I hope to encourage others to share theirs. Please help make our culture more inclusive, safe, and comfortable for everyone. -------------- next part -------------- An HTML attachment was scrubbed... URL: From fernando.jaramillo at natgeo.su.se Wed Feb 7 14:33:38 2024 From: fernando.jaramillo at natgeo.su.se (Fernando Jaramillo) Date: Wed, 7 Feb 2024 13:33:38 +0000 Subject: [Bolincentret-at-su.se] =?utf-8?q?REMINDER=3A_Seminar_by_Dr=2E_R?= =?utf-8?q?=C3=BAna_Magn=C3=BAsson=2C_Wageningen_University_=28Feb_9=29_?= =?utf-8?q?=22Making_it_rain=3A_Arctic_permafrost_and_tundra_vegetation_un?= =?utf-8?q?der_future_increases_in_rainfall=22?= Message-ID: <63967d6f2ad04938a8aeba550ee5c2f9@natgeo.su.se> Welcome to the following RT2 seminar… Bolin RT2 seminar series EVENT Date: Friday 9 February 2024 Time: 14.00 – 15.00 Venue: Högbom lecture hall, Geoscience building Making it rain: Arctic permafrost and tundra vegetation under future increases in rainfall Dr. Rúna Magnússon, Wageningen University and Research, Netherlands The response of Arctic permafrost and plant communities to amplified global warming are important factors in the planet’s future greenhouse gas balance and climate, but also some of the most poorly quantified aspects of Earth system models. Besides, with warming up to four times faster than the global average, Arctic communities experience rapid changes to their natural environment. Apart from temperature increases, precipitation patterns in the Arctic are subject to change, with increased rainfall and extreme precipitation events reported for many Arctic regions. However, the role of rainfall and rainfall extremes in permafrost degradation and vegetation dynamics are understudied compared to the effects of warming. How would heavy rainfall in summer affect the thawing sand refreezing dynamics of permafrost? Could it promote “Arctic greening” now that Arctic regions are getting warmer? Or might the impact of rainfall depend strongly on landscape conditions and seasonal timing? Rúna will share the results of her recent work on rainfall impacts of permafrost ecosystems, including experimental studies simulating rainfall increases in Siberia and Svalbard, modeling studies, and time-series analysis. Short bio Rúna Magnússon is an early career Lecturer & Researcher at Wageningen University in the Netherlands. Her work focuses on the impacts of heavy rainfall events on permafrost ecosystems, using field experiments, tree-ring studies, remote sensing time series, and meta-analysis. Her PhD research focused on vegetation development and thermokarst in the North-Eastern Siberian lowland tundras. Now, she primarily focuses on Svalbard, runs a rainfall simulation experiment (T-REX project), and works on quantifying the insulative capacity of High Arctic plant communities during permafrost thaw (INSULATE project, led by UNIS). She also shares research-inspired illustrations, photos and blogs on www.runamagnusson.com Mvh, FERNANDO JARAMILLO Department of Physical Geography Stockholm University, SE-106 91 Stockholm. Sweden Personal website -------------- next part -------------- An HTML attachment was scrubbed... URL: From Laila.Islamovic at aces.su.se Mon Feb 19 14:13:58 2024 From: Laila.Islamovic at aces.su.se (Laila Islamovic) Date: Mon, 19 Feb 2024 13:13:58 +0000 Subject: [Bolincentret-at-su.se] RT4 Seminar: Dr. Elsa Abs - Microbial eco-evolutionary feedbacks to carbon cycling and climate change Message-ID: <100835e7c1f44d73ba3caa1fd45fb1fd@aces.su.se> Dear Bolin Centre members, On behalf of Research Theme 4: Climate, ecosystems and biodiversity, we would like to invite you to a joint seminar with the Department of Physical Geography given by Dr. Elsa Abs, a Marie Curie postdoctoral fellow at the Laboratory for Sciences of Climate and Environment (LSCE), Paris. Title: Microbial eco-evolutionary feedbacks to carbon cycling and climate change Date: 28 February Time: 13:00-14:00 Location: Högbom Lecture Hall, Geoscience building Talk abstract: Microbes have big impacts on Earth’s biogeochemical cycles. While we know that microbial community composition can shape function, we still don’t know how microbial function will vary with climate change. I’m interested in understanding and quantifying microbial eco-evolutionary responses to climate change, and when and where they will affect biogeochemistry at ecosystem scales. I’ll talk about how, using game-theory based models, I predicted microbial resource allocation strategy as a function of abiotic factors (soil diffusivity, temperature), and the consequences for global soil carbon, especially in cold regions. I will also discuss how eco-evolutionary processes affect microbiomes’ functional response to selection. Using an individual-based model, I found that taxa sorting is not enough to adapt to higher substrate quality, but adaptation is facilitated by dispersal. Currently, I’m working on identifying conditions under which mutation-selection and species sorting lead to different community functional responses to drought. Finally, I’ll talk about how I’m planning to integrate microbial eco-evo responses into ecosystem biogeochemical models. Find more information on our website: https://www.su.se/bolin-centre-for-climate-research/calendar/microbial-eco-evolutionary-feedbacks-to-carbon-cycling-and-climate-change-1.714288 Kind regards, Laila Islamovic Communicator Bolin Centre for Climate Research Department of Environmental Science (ACES) Stockholm University SE-106 91 Stockholm, Sweden Room: V201 Phone: +46 76 695 70 78 laila.islamovic at aces.su.se www.bolin.su.se ___________________________________ -------------- next part -------------- An HTML attachment was scrubbed... URL: -------------- next part -------------- A non-text attachment was scrubbed... Name: not available Type: text/calendar Size: 4027 bytes Desc: not available URL: From volker.bruchert at geo.su.se Wed Feb 28 09:52:35 2024 From: volker.bruchert at geo.su.se (=?utf-8?B?Vm9sa2VyIEJyw7xjaGVydA==?=) Date: Wed, 28 Feb 2024 08:52:35 +0000 Subject: [Bolincentret-at-su.se] RT 2 Seminar by Laura Bristow, University of Gothenburg, March 6: "No laughing matter: nitrous oxide cycling in oxygen depleted waters" In-Reply-To: <63967d6f2ad04938a8aeba550ee5c2f9@natgeo.su.se> References: <63967d6f2ad04938a8aeba550ee5c2f9@natgeo.su.se> Message-ID: <99b6ad378b4441f1a92bdef37339eee7@geo.su.se> Welcome to our next RT2 seminar Bolin RT2 seminar series EVENT Date: Wednesday 6 March 2024 Time: 15.00 – 16.00 Venue: William Olsson lecture hall, Geoscience building No laughing matter: Nitrous oxide cycling in oxygen-depleted waters Dr. Laura Bristow, Department of Marine Sciences, University of Gothenburg The ocean is a major source of atmospheric nitrous oxide (N2O), a powerful greenhouse gas and ozone destroyer, and oxygen (O2)-depleted marine waters are hotspots of N2O accumulation and emission. N2O is both a product of and a substrate for microbial metabolism, but we lack a clear understanding of which microbes and bio(geo)chemical mechanisms are involved, and how these are controlled by environmental factors. Filling this knowledge gap is essential, as O2-depleted regions are expanding and increasing fluxes of reactive nitrogen (N) from land to sea stimulate marine N cycling, which may further enhance N2O accumulation. Looking across low-oxygen waters in coastal to open ocean settings (including Mariager Fjord, Denmark; Saanich Inlet, British Columbia, and the eastern tropical North Pacific (ETNP)) we disentangled the contributions of denitrification and nitrification to N2O production using both 15N-labeled substrates and 18O2. Denitrification was shown to the dominant source of N2O, however, the data suggested that microbes reduced the 15N-nitrate in an atypical “closed” pathway without freely exchangeable intermediates. Surprisingly, no variability in the N2O production rate via this pathway was observed over a manipulated oxygen range of 0.1 to 15 µM. N2O consumption was not detectable in oxycline waters but increased steeply below the oxic-anoxic interface along with the accumulation of H2S at coastal sites. Consistent with this distribution, the process was highly sensitive to O2, with 50% inhibition at ~150 nM O2 added, and was stimulated by low amounts of H2S (≤ 5 µM) while higher H2S concentrations were inhibitory. Environmental controls need to be assessed across spatial and temporal scales if we are to build a foundation for the prediction of N2O emissions in a changing world. Short bio Laura Bristow Laura Bristow is a senior lecturer in Marine Chemistry at the Department of Marine Sciences at the University of Gothenburg. A long time ago she left the UK after finishing her PhD at the University of East Anglia and was a postdoctoral researcher at the University of Massachusetts Dartmouth, USA, and then at the University of Southern Denmark (SDU), Odense, Denmark. After a couple of years as a research scientist at the MPI for Marine Microbiology in Bremen, Germany, she returned to Denmark and SDU as Assistant then Associate Professor before taking on the position as Senior lecturer at the University of Gothenburg. Her research aims to contribute to the improved understanding of the biogeochemistry and microbial ecology of low-oxygen regions, which is highly pertinent as low-oxygen regions of the ocean have expanded in size and number during the past decades and models predict further expansion in the future as a result of global change. Currently she is working in the seasonally and permanent low oxygen regions of the eastern tropical North Pacific, Danish coastal waters, Saanich Inlet, Canada. Her toolbox includes stable isotope analyses, experimental (in situ) incubations, and biomolecular techniques. As nitrogen is a limiting nutrient for primary production in large parts of the ocean, understanding the factors that regulate its availability is critical for the analysis and prediction of the biogeochemical function of the ocean and hence makes up the corner stone of her research . Central questions of her work focus on recycling versus loss of nitrogen, production / consumption of the potent greenhouse gas nitrous oxide and taking our low oxygen rate measurements in situ. The cycling of nitrogen is also intrinsically linked to the cycling of carbon and sulfur. Mvh, Volker Brüchert Department of Geological Sciences Stockholm University, SE-106 91 Stockholm. Sweden -------------- next part -------------- An HTML attachment was scrubbed... URL: