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Successful "GEOTRACES IDP 2017 data with Ocean Data View" Workshop held in Qingdao, China

A hands-on workshop to teach standard and advanced Ocean Data View (ODV) methods for the exploration and scientific analysis of environmental data was held on May 2 and 3 2018, Qingdao, China. Total 82 participants attended the workshop including graduate and undergraduate students as well as young scientists, from Ocean University of China. During the workshop, the GEOTRACES Intermediate Data Product 2017 (IDP2017) was used as example dataset. For the day 1, participants learned how to use ODV software, create map, property-property plots, sections, surface plots. In addition, participants also learned how to create ODV data file with their own data set. For the day 2, part of participants (14 students) gave presentations based upon the topics they have interest, which cover Global Physical water circulation, GEOTRACES IDP2017 data, Time-series data (Station Aloha), and their own dataset etc. Lastly, participants learned some tips of advanced level of ODV on how to work on their own dataset.

Participants were encouraged to bring their own laptop computer for use during the hands-on sessions of the workshop. All computers were prepared before the workshop by installing the latest version of the ODV software (ODV 5.0) and downloading the data set. Also, participants were encouraged to fill the survey before the workshop, which helped to understand the participant’s needs and to organize the workshop. The survey was included those questions: Have you ever used ODV before? Have you ever made any “scatter”, “section”, “surface” plots with ODV? Have you ever created own data spreadsheet for ODV and import into ODV? What topic are you interested in the most? i.e. Global Physical water circulation, GEOTRACES IDP2017 data, Time-series data (Station Aloha), Carbon, Hydrothermal vents, and Others. The 63 students were answered those questions, and the main results are available in the workshop report.  

 2018 ODV Workshop 483 1  2018 ODV Workshop2

Pictures: (left) Dr. Mariko Hatta gave her presentations during the workshop on the Day 1 (May 2 2018); (right) The scene at room B317, south building in the College of Information Science and Engineering, Ocean University of China.

Pre-registration is OPEN! Joint GEOTRACES/PAGES synthesis workshop


Pre-registration is OPEN!


Pre-registration
is now available
for the GEOTRACES - PAGES synthesis workshop on:


Trace element and isotope proxies in paleoceanography


3 – 5 December 2018, Aix-Marseille, France

(the first announcement is appended)


Pre-register via the workshop web site: https://geotracespages.sciencesconf.org/


Deadline: 
1 June 2018

PAGES GEOTRACES

Post-doc position in Marine Science at Bar-Ilan University, Israel


A post-doc position is offered for two years, starting summer 2018, in the Environmental Radioisotope Geochemistry lab at Bar-Ilan University, Ramat-Gan, Israel (http://biuradiolab.wixsite.com/radiolabbiu). The candidate will be involved in an interdisciplinary study of the biological pump and transport processes in the warm ultra-oligotrophic eastern Mediterranean Sea, which has been recently subjected to increasing anthropogenic pressure, such as extensive drilling for oil and gas and coastal water desalination.

The work will focus on a recently-deployed deep water observatory (‘DeepLev’), accompanied by monthly and seasonal cruises across the Levantine basin. The research will involve geochemical, microbiological and physical aspects.

Requirements include a recently-acquired Ph.D. (or expected within the next few months) in oceanography or earth sciences and leading abilities in field and lab work.

The qualified candidate will need to apply for the Mortimer Zuckerman STEM LEADERSHIP PROGRAM (http://zuckerman-scholars.org/programs/postdoctoral-scholars/) and submit the application through Bar Ilan University. Deadline is June 1, 2018.

For more details, please contact Prof. Yishai Weinstein, weinsty@biu.ac.il

PhD position in Mercury Biogeochemistry in Oxygen Minimum Zones 

PhD position in Mercury Biogeochemistry in Oxygen Minimum Zones 

Mediterranean Institute of Oceanography (MIO) & Geosciences Environment Toulouse (GET

Fully-funded PhD Position 

The Marseille Marine Mercury Laboratory at the Mediterranean Institute of Oceanography (MIO) and the Mercury Isotopes Group at Geosciences Environment Toulouse (GET) are seeking to recruit a scientist for a fully-funded 3-year PhD position to work at at the frontiers of trace metal oceanography, analytical sciences, stable isotopes biogeochemistry, and ecology. This PhD position is funded via the ANR (Agence Nationale de la Recherche) MERTOX project (2017-21) “Unraveling the origin of methylMERcury TOXin in marine ecosystems” (PI David Point, GET). 

Mercury is global pollutant and a neurotoxin with a serious health risk for humans, mainly via the consumption of marine fish. Anthropogenic Hg emissions have largely altered natural Hg levels. Bacteria feeding on sinking marine organic matter in the mesopelagic zone are thought to produce the toxic methylmercury species (MMHg) that bioaccumulates along the marine trophic chain to harmful levels. This main goal of this PhD project to study mercury biogeochemistry in oxygen minimum zones (OMZ), and to develop new stable isotope tools for a better understanding of the marine biogeochemical Hg cycle. The MERTOX case study will be conducted in the Peruvian Humboldt OMZ, which is very productive, exhibits extreme redox gradients, and is known to enhance in situ MeHg production. This region accounts for 15% of worldwide commercial fisheries while representing 0.1% of the global ocean surface. Peruvian anchovy fisheries contribute to more than half of world landings used for fishmeal production and then fuels a critical portion of world aquaculture production. The MERTOX field campaigns are planned for April and August 2019, along several cruise transects covering the strong inshore/offshore organic matter gradients and steep shallow redox fronts. The cruises will be performed on board of IMARPE’s R/V Olaya and will be supported by bi-annual transect surveys. Complementary physical (salinity, temperature,..), chemical (macronutrients, Fe, Mn, CH4, HS-), microbiological (diversity, HgcAB methylating genes) and ecological (phytoplankton speciation, Chl-a,…) data will be gathered. The main field tasks of the PhD student is to sample and measure the full suite of Hg species (MMHg, DMHg, Hg°, Hg2+, pHg, pMMHg), perform isotopically labelled incubation experiments, and contribute to the isotopic measurement of both the Carbon (δ13C), and Hg (δ202Δ199Hg) atoms of the MeHg (CH3Hg) molecule, along the trophic chain (seawater, phyto-, zooplankton,…). 

The PhD student will be based at the MIO (Lars-Eric Heimbürger, Sophie Bonnet, Marseille, France) and will closely collaborate with the GET laboratory (David Point, Jeroen Sonke, Toulouse, France) for stable isotopic analysis, the LMD/IPSL (Laurent Bopp, Paris, France) for biogeochemical modeling, the LEMAR (Anne Lorrain, Brest, France) for ecological/trophic web investigations, and the IMARPE (Michelle Graco, Lima, Peru) for the specifics of the biogeochemistry of the Humboldt OMZ and field work . 

MIO is a joint research unit of AMU, CNRS, Institute of Research for Development (IRD) and University of Toulon (UTLN). MIO’s objectives are to better understand the ocean system and its response to global change, with expertise in chemical, physical and (micro-)biological oceanography. MIO has infrastructures at 5 sites: AMU Luminy, UTLN, the IFREMER marine base in La Seyne-sur-Mer and the IRD Centre in Nouméa, New Caledonia. MIO is structured in 5 disciplinary teams, with 6 cross-thematic research areas and 6 analytical platforms, a marine monitoring service supported by its own research vessel Antedon II, which will be used for method development. 

The Marseille Marine Mercury Laboratory at MIO is fully equipped for basic and advanced Hg analysis: cold vapor atomic fluorescence spectrometry (3x CV-AFS Brook Rand), an automated total Hg analyzer purge & trap CV-AFS (Brooks Rand MERX-T), an automated methylHg analyzer purge & trap GC-CV-AFS (Brooks Rand MERX-M, an automated combustion atomic absorption spectrometry AAS (Leco AMA 254), and a brand-new gas chromatography (Thermo Trace 1300) coupled to the HR-ICPMS (Thermo Element XR) for Hg speciation by isotope dilution. One fulltime dedicated technician manages daily operations and maintenance of these facilities. 

The PhD student will be trained in ultra-trace clean techniques, participate in several field campaigns, help with the validation and interpretation of all acquired data, help with the implementation of the data into numerical models and contribute to the publication of the findings. The PhD student will be lead author of at least 2 publications. 

The PhD student will potentially be involved in another Pacific Ocean cruise in November-December 2019, as part of the submitted ANR proposal TONGA (PIs Sophie Bonnet, MIO, Cecile Guieu, LOV, Villefranche sur Mer) as part of the international GEOTRACES program. A qualification comparable to a Master's degree or Diploma in chemistry, environmental chemistry, (chemical) oceanography or related field is required. Experience in analytical chemistry and / or marine biogeochemistry is desirable. An essential requirement for selection for the PhD projects is a top-quality MSc or equivalent 4–5 year degree. We also expect good English language skills, and that the candidate is willing and able to participate in sea-going expeditions. Most importantly, we are looking for a creative and curious mind. Applications including a letter of motivation, CV and contact details of 2 referees should be sent to heimburger@lars-eric.com as a single pdf file, using as email subject "PhD OMZ Hg". 

PhD supervisors Dr. Lars-Eric Heimbürger, Dr. Sophie Bonnet (HDR) Mediterranean Institute of Oceanography, Aix Marseille University, CNRS/INSU, Université de Toulon, IRD, Marseille, France 

Dr. David Point Geosciences Environment Toulouse, Observatoire Midi-Pyrénées, CNRS/IRD/Université Paul-Sabatier, Toulouse, France 

PhD position in Mediterranean Mercury Modeling, LSCE & MIO, France 

PhD position in Mediterranean Mercury Modeling, LSCE & MIO, France 

The Laboratory of Climate and Environmental Sciences (LSCE, Paris, France) and the Mediterranean Institute of Oceanography (MIO, Marseilles, France) are offering a 

PhD Position 

Topic: Modeling the biogeochemical mercury cycle in the Mediterranean Sea. 

Starting on October 1st 2018 

Job Description / Duties 

The Mediterranean Sea is under the influence of anthropogenic emissions and changing climate, both affecting the biogeochemical mercury cycle. This oligotrophic basin, limited by macronutrients (P, N), mainly receives supply via atmospheric deposition, upwelling of deep waters and rivers. 

The PhD objective is to investigate the impact of climate change and atmospheric forcing on the Mediterranean Sea and its marine biogeochemistry. The strategy is based on the use and analysis of 3D atmospheric and oceanic models, especially the regional coupled NEMOMed-PISCES model that simulates the dynamics and biogeochemical cycles of the Mediterranean at high resolution (1/12°). This study is part of the national MISTRALS and the international GEOTRACES programs. 

Firstly, we will study the evolution of the biogeochemical cycling according to different IPCC climate change scenarios. We will simulate the response of the changes in forcing (temperature, circulation), nutrient supply (atmospheric dust deposition, rivers), and nutrient redistribution (circulation) on primary production, and the first trophic levels (phyto- and zooplankton). The numerical modeling efforts will be supported by recently acquired in situ observations, including a Saharan dust event, aduring the 2017 GEOTRACES PEACETIME cruise. 

Secondly, we will attempt to simulate for the first time the complex biogeochemical cycle of mercury (Hg), resolving all Hg species (MMHg, DMHg, Hg°, Hg2+, pHg, pMMHg) in the Mediterranean Sea. Mercury is global pollutant and a neurotoxin with a serious health risk for humans, mainly via the consumption of marine fish. Anthropogenic Hg emissions have largely altered natural Hg levels. Bacteria feeding on sinking marine organic matter in the mesopelagic zone are thought to produce the toxic methylmercury species (MMHg) that bioaccumulates along the marine trophic chain to harmful levels. The direct links of anthropogenic Hg emissions and changing climate to marine fish Hg levels, and ultimately human exposure remain ill-understood. 

The Mediterranean Sea is one of the best covered areas in terms of observational Hg data (Cossa et al. 1991, 1994, 1997, 2017a,b, Horvat et al. 2003, 2005, Kotnik et al. 2007, 2009, Heimbürger et al. 2010). The data comprises over 800 data points and the new data acquired during the 2017 GEOTRACES PEACETIME cruise added another 200 data points. The wealth of observational Hg data and the well-studied circulation and biogeochemistry (MERMEX group, 2011) make the Mediterranean Sea the ideal place to implement marine biogeochemical models (Ayache et al., 2016). 

The PhD student will based at the Laboratoire du Sciences du Climat et d’Environnement (LSCE) and collaborate intensely with the Mediterranean Institute of Oceanography (MIO) in Marseilles, France. S/he will help with the validation and interpretation of all acquired data and be in charge of the implementation of the data into numerical models. The PhD student will be lead author of at least 2 publications. Although the data for PhD project is already acquired, the student will be given the opportunity to learn about the observational aspects, ultra-trace clean techniques, participate to field campaigns. 

Qualification 

A qualification comparable to a Master's degree or Diploma in (chemical) oceanography, environmental chemistry, or related field is required. Experience in programming and numerical modeling is a requirement, and notations in marine biogeochemistry are desirable. An essential requirement for selection for the PhD projects is a top-quality MSc or equivalent 5 year degree. We also expect good English language skills. 

Applications including a letter of motivation, CV and contact details of 3 referees should be sent to jean-claude.dutay@lsce.ipsl.fr and lars-eric.heimburger@mio.osupytheas.fr as a single pdf file, using as subject "MED Hg modeling". 

Dr. Jean-Claude Dutay SCE, IPSL/CEA, UVSQ, CNRS, University Paris-Saclay, Gif sur Yvette, France 

Dr. Lars-Eric Heimbürger 

Mediterranean Institute of Oceanography, Aix Marseille University, CNRS/INSU, Université de Toulon, IRD, UM 110, 13288, Marseille, France 

Evaluation will close end of April. 


References 

Ayache, M., J. C. Dutay, T. Arsouze, S. Révillon, J. Beuvier and C. Jeandel (2016). "High-resolution neodymium characterization along the Mediterranean margins and modelling of εNd distribution in the Mediterranean basins." Biogeosciences 13(18): 5259-5276. 

Cossa, D., B. Averty and N. Pirrone (2009). "The origin of methylmercury in open Mediterranean waters." Limnology and Oceanography 54(3): 837-844. 

Cossa, D. and M. Coquery, Eds. (2005). The Mediterranean Mercury Anomaly, a Geochemical or a Biological Issue. The Mediterranean Sea. Berlin-Heidelberg, Springer. 

Cossa, D., X. Durrieu de Madron, J. Schäfer, S. Guédron, N. Marusczak, S. Castelle and J.-J. Naudin (2017). "Sources and exchanges of mercury in the waters of the Northwestern Mediterranean margin." Progress in Oceanography. 

Cossa, D., X. Durrieu de Madron, J. Schäfer, L. Lanceleur, S. Guédron, R. Buscail, B. Thomas, S. Castelle and J.-J. Naudin (2017). "The open sea as the main source of methylmercury in the water column of the Gulf of Lions (Northwestern Mediterranean margin)." Geochimica et Cosmochimica Acta 199(Supplement C): 222-237. 

Cossa, D. and J.-M. Martin (1991). "Mercury in the Rhône delta and adjacent marine areas." Marine Chemistry 36(1–4): 291-302. 

Cossa, D., J. M. Martin and J. Sanjuan (1994). "Dimethylmercury Formation in the Alboran Sea." Marine Pollution Bulletin 28(6): 381-384. 

Cossa, D., J. M. Martin, K. Takayanagi and J. Sanjuan (1997). "The distribution and cycling of mercury species in the western Mediterranean." Deep-Sea Research II 44(3-4): 721-740. 

Durrieu de Madron, X., C. Guieu, R. Sempéré, P. Conan, D. Cossa, F. D’Ortenzio, C. Estournel, F. Gazeau, C. Rabouille, L. Stemmann, S. Bonnet, F. Diaz, P. Koubbi, O. Radakovitch, M. Babin, M. Baklouti, C. Bancon-Montigny, S. Belviso, N. Bensoussan, B. Bonsang, I. Bouloubassi, C. Brunet, J. F. Cadiou, F. Carlotti, M. Chami, S. Charmasson, B. Charrière, J. Dachs, D. Doxaran, J. C. Dutay, F. Elbaz-Poulichet, M. Eléaume, F. Eyrolles, C. Fernandez, S. Fowler, P. Francour, J. C. Gaertner, R. Galzin, S. Gasparini, J. F. Ghiglione, J. L. Gonzalez, C. Goyet, L. Guidi, K. Guizien, L. E. Heimbürger, S. H. M. Jacquet, W. H. Jeffrey, F. Joux, P. Le Hir, K. Leblanc, D. Lefèvre, C. Lejeusne, R. Lemé, M. D. Loÿe-Pilot, M. Mallet, L. Méjanelle, F. Mélin, C. Mellon, B. Mérigot, P. L. Merle, C. Migon, W. L. Miller, L. Mortier, B. Mostajir, L. Mousseau, T. Moutin, J. Para, T. Pérez, A. Petrenko, J. C. Poggiale, L. Prieur, M. Pujo-Pay, V. Pulido, P. Raimbault, A. P. Rees, C. Ridame, J. F. Rontani, D. Ruiz Pino, M. A. Sicre, V. Taillandier, C. Tamburini, T. Tanaka, I. Taupier-Letage, M. Tedetti, P. Testor, H. Thébault, B. Thouvenin, F. Touratier, J. Tronczynski, C. Ulses, F. Van Wambeke, V. Vantrepotte, S. Vaz and R. Verney (2011). "Marine ecosystems’ responses to climatic and anthropogenic forcings in the Mediterranean." Progress in Oceanography 91(2): 97-166. 

Heimbürger, L. E., D. Cossa, J.-C. Marty, C. Migon, B. Averty, A. Dufour and J. Ras (2010). "Methylmercury distributions in relation to the presence of nano- and picophytoplankton in an oceanic water column (Ligurian Sea, North-western Mediterranean)." Geochimica Et Cosmochimica Acta 74(19): 5549-5559. 

Horvat, M., J. Kotnik, M. Logar, V. Fajon, T. Zvonaric and N. Pirrone (2003). "Speciation of mercury in surface and deep-sea waters in the Mediterranean Sea." Atmospheric Environment 37(Supplement 1): 93-108. 

Kotnik, J., M. Horvat, E. Tessier, N. Ogrinc, M. Monperrus, D. Amouroux, V. Fajon, D. Gibicar, S. Zizek, F. Sprovieri and N. Pirrone (2007). "Mercury speciation in surface and deep waters of the Mediterranean Sea." Marine Chemistry 107(1): 13-30. 

Goldschmidt 2018 Student and Early Career Grants


There will be an expanded number of grants for student and early career scientists to attend Goldschmidt in Boston this August. Here is the info and link to the website:

Goldschmidt 2018 Student and Early Career Grants [https://goldschmidt.info/2018/grants]

The Geochemical Society is actively seeking applications for student and early career grants to attend the 2018 Goldschmidt Conference in Boston. The society is significantly increasing the amount of funding available this year to support student/early career participation, as detailed below.

Apply by March 30 if you meet any of these criteria:

—students and early career scientists from countries classified as low, lower-middle-income economies

—students from countries with upper-middle-income economies AND without other sources of funding

—US-based students from underrepresented institutions OR who self-identify as members of underrepresented groups in the sciences

—Any US-based student or post-doctoral scholar working on planetary science topics

Complete information about the qualifications and application process may be found at: https://goldschmidt.info/2018/grants 

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