Wednesday, May 04, 2022

PhD Position on N2O Fluxes at University of Göttingen (Germany)

PhD Position description:

At the University of Göttingen -Public Law Foundation-, DNPW – Division Agronomy, there is a position as:

PhD position (all genders welcome)

to be filled.

The salary is in accordance with the German public service salary scale (Entgeltgruppe 13 TV-L /65%).The position is part of the DFG-funded project “INFLUX: Improved process understanding and quantification of Nitrous oxide FLUXes in a German crop rotation” where we aim at quantifying nitrous oxide (N2O) fluxes simultaneously using eddy covariance and chamber techniques and to understand the mechanisms responsible of the fluxes combining soil analysis, metagenomic studies and isotopic techniques.Your duties:

  • Maintenance of instrumentation for eddy covariance measurements of N2O and calculations of fluxes
  • Measurement of N2O fluxes using manual chambers
  • Comparison of N2O fluxes from eddy covariance and chambers; analysis of spatial and temporal variability of the fluxes
  • Collection of soil samples, soil analysis in the lab
  • Metagenomic studies and isotopic signatures of N2O to understand the microbial communities responsible of N2O fluxes
  • Writing papers and participation in scientific conferences.

Your profile:

 We seek someone with a Masters on Agronomy, Soil Sciences, Environmental Sciences or related discipline, with experience on doing field or lab work. Previous experience in flux measurements will be considered an asset. The candidate should have good oral and written English language skills, some knowledge in statistical methods and of some programming languages (e.g. R).This post is designed to serve in fostering young researchers and scientists and give the successful applicant the opportunity to pursue a doctoral degree.

The University of Göttingen is an equal opportunities employer and places particular emphasis on fostering career opportunities for women. Qualified women are therefore strongly encouraged to apply in fields in which they are underrepresented. The university has committed itself to being a family-friendly institution and supports their employees in balancing work and family life. The mission of the University is to employ a greater number of severely disabled persons. Applications from severely disabled persons with equivalent qualifications will be given preference.

Please send your application with CV, Cover letter and certificates in electronic form as one single pdf file until 5/31/2022 to Georg-August-Universität Göttingen, Department of Crop Sciences, Division Agronomy/Crop Science, anja.wrobel@agr.uni-goettingen.de.If you have any questions, please contact Dr. Ana Meijide directly via e-mail: ana.meijideorive@uni-goettingen.de.

Thursday, March 17, 2022

Post-Doc Position on Modeling Sahelian Ecosystems

Post-doctoral fellow in ecological modelling of agroforestry systems
Location Eco&Sols research unit, Montpellier (France)
Contract duration 24 months
Start July 1st 2022 at the latest


Following a multitude of local experiments, agroforestry (AF) has been identified as one of the
nature-based solutions to help mitigating the climate crisis. Yet, little is known on the large-
scale potential of AF to tackle climate change. The main reason for this is the gap between AF
ecosystems’ complexity and variability, and the surface homogeneity hypotheses relied upon
by Land Surface Models (LSM).


The DM-TropAFS project funded by Agropolis Foundation aims at a first evaluation of a land
surface model applied to a tropical AF system (as a proof of concept). More specifically, we
will focus on a semi-arid ecosystem in Senegalese Faidherbia parklands as a proof-of-concept
tropical AF system and evaluate the potential for LSM of accounting for vertical heterogeneity
in plant canopy energy budget.


For this, we are looking for a candidate with a background in ecological modeling and data
processing as well as a keen interest in agroforestry systems.


Work duties
The successful candidate will work with the ORCHIDEE land surface model to evaluate the
potential of recent multi-layer energy budget developments to simulate competition for light in
a semi-arid tree/crop ecosystem. The developments will be tested at site level based on carbon,
water and energy data collected at the experimental Faidherbia-flux platform before taking the
simulations up to the regional scale. In parallel, the candidate will work on developing a global
database of agroforestry system types at a level of detail usable by the global land surface model
ORCHIDEE, that is including main ecophysiological parameters, locations, and available
evaluation datasets.


The work will be conducted in close collaboration with LSCE and HORSTSYS project
partners for model development and data analysis respectively, as well as 2 PhD students
already working on complementary topics, thus providing an active research team. The
successful candidate is expected to present results at international conferences, produce high
quality scientific papers, and drive the disseminating of the results.


Requirements:

- PhD in ecology, environmental science, mathematics or other natural sciences
- Documented skills in mechanistic modelling
- Proficiency in spoken and written English
- Demonstrated skills to work in a team


Work environment
The successful candidate will be hired by CIRAD and hosted at Eco&Sols research unit with
visits to Horstsys and LSCE laboratories.


CIRAD is the French agricultural research and cooperation organization working for the
sustainable development of tropical and Mediterranean regions. CIRAD works with its
partners in southern countries to generate and pass on new knowledge to support agricultural
development. It puts its scientific and institutional expertise at the disposal of policymakers in
those countries and global debates on the main issues concerning agriculture. It also supports
French scientific diplomacy operations.


The Eco&Sol research unit focuses on understanding the functioning of agro-ecosystems in
particular with respect to soil-plant interactions.


Application
Please send in a single pdf your CV, motivation letter, one meaningful publication and contact
of a reference person who you worked with to aude.valade@cirad.fr
For more information contact aude.valade@cirad.fr

Monday, March 14, 2022

Postdoctoral Position on water and heat stresses on ecosystem functioning with ECOSTRESS and OCO-3 observations

The Earth Systems Research Center, University of New Hampshire (UNH) has an immediate opening for a Postdoctoral Research Associate. The successful candidate will explore how water and heat stresses influence ecosystem functioning (photosynthesis, evapotranspiration, water use efficiency), carbon cycling, and/or plant mortality (e.g., tree mortality) for various ecosystem types over broad regions using observations from new generation satellites (e.g., ECOSTRESS, OCO-3, geostationary satellites), in-situ measurements, and machine learning/modeling. This position is funded by NASA and NSF and can be renewed annually depending on satisfactory performance. 

A Ph.D. in areas such as ecology, remote sensing, atmospheric sciences/meteorology, biogeosciences, forestry/natural resources, environmental science, or a related field is required. Applicants should be enthusiastic, creative, and highly motivated. Ideal candidates should have one or more of the following experiences: satellite remote sensing, processing of large data sets, machine learning, Earth system modeling, and synthesis of in-situ observations. Strong communication, writing, and programming skills and publication record are highly desirable. 

Please submit a cover letter, CV, and the names and contact information of three references to Dr. Jingfeng Xiao (j.xiao@unh.edu) via email with the subject line “Application for postdoc position in ECOSTRESS and OCO-3”. Review of applications will begin on March 25, 2022 and continue until the position is filled. 

 The position offers a competitive salary and full benefits. The successful candidate will join a research team at the Earth Systems Research Center, a world-class research center in Earth system science. UNH is a Research-I, Land, Sea and Space Grant University that has been recognized both nationally and internationally for research excellence in ecology, environmental science, geoscience and forestry. Located in the Seacoast region of New Hampshire, members of UNH enjoy the high quality of life and beautiful natural surroundings the region provides. The University System of New Hampshire is an Equal Opportunity/Equal Access/Affirmative Action institution

Monday, March 07, 2022

Postdoctoral researcher (Greenhouse gas modeling using satellites and high-performance computing)

Postdoctoral researcher (Greenhouse gas modeling using satellites and high-performance computing)

 The Finnish Meteorological Institute (www.fmi.fi/en) Carbon Cycle group and the Greenhouse Gases and Satellite Methods Group seek for an enthusiastic and motivated postdoctoral researcher for a climate science project at Helsinki/Kumpula in Finland. The researcher will work in the forefront of carbon cycle research in both groups and internationally to ultimately help support the goals of the Paris Agreement.

Work tasks

The Carbon Cycle group studies the cycling of greenhouse gases in vegetation and soil, and interactions and feedbacks between atmosphere and biosphere, as well as global greenhouse gas sinks and sources. The group uses advanced modelling tools and data-assimilation methods to combine models with measurements. The Greenhouse Gases and Satellite Methods group studies greenhouse gases using a variety of novel satellite data. The group develops sophisticated data-driven methods for analysing the sources and sinks of greenhouse gases and evaluating the reliability of the observations. The research is linked with the Academy of Finland Centre of Excellence in Inverse Modelling and Imaging.

The postdoctoral researcher will study sources and sinks of greenhouse gases by using advanced modelling, high-performance computing, and satellite observations. The focus of the post-doctoral project is to develop atmospheric inverse modeling methods and implement the CIF atmospheric inverse model in CSC (IT Center for Science Ltd)  supercomputer LUMI. The researcher will perform computationally demanding simulations in high resolution relevant for GHG source partitioning, analyse simulation results, and work with the most recent, extensive satellite observations (e.g., from ESA Sentinel 5P TROPOMI, Nasa OCO-2) and synthetic near-future satellite data (CO2M). The work includes preparation of scientific articles related to methodological development of the model system and satellite data assimilation, and natural and anthropogenic methane and carbon dioxide budgets with uncertainty estimates. The team develops in particular national emission estimates for Finland to help verify and support the goals of the Paris Agreement.

Qualifications

  • PhD degree or equivalent in a suitable field, e.g., computer science, data science, atmospheric sciences, physical sciences, mathematics, engineering (also applicants near the completion of the degree will be considered)
  • Strong programming skills (e.g. Python, Fortran) and use of command line tools
  • Good spoken and written English language skills
  • Willingness to travel and work internationally
  • Proven track-record on writing scientific publications
  • Ability to carry out independent, systematic, well-organised research work as well as work as part of a team
  • Good communication skills

Candidates with the following qualifications will be given additional consideration

  • Expertise in atmospheric sciences, carbon cycle studies, greenhouse gases and/or satellite remote sensing
  • Experience with working in supercomputing environment, specifically with massively parallel computing, and with large data sets
  • Experience in data visualization and data analysis
  • Strong interest in research and motivation for publishing research results in scientific and general forums
  • Spoken and written Finnish language skills

We offer an inspiring working environment, development opportunities and support from our friendly research team!

The position is a fixed-term employment, and it will start on 1st April, 2022 (or as agreed) and will end on 31st March, 2023 (with a possible extension). The position includes a probationary period of three months in the beginning. The position will be located in Helsinki, Finland. Salary will be based on experience and performance according to the FMI salary scale, base level 12. Work languages are Finnish and English (the knowledge of Finnish is not required).

Send your free-form application with attachments (CV, transcript of records, list of publications and the contact information of maximum three references persons) https://www.valtiolle.fi/en-US/Vacancy?id=31-68-2022 by 15 March, 2022 at 2 p.m. (EET). You can leave your application in Finnish or English.

For more information, please contact Principal Scientist Tuula Aalto, tuula.aalto@fmi.fi or Head of Group Hannakaisa Lindqvist, hannakaisa.lindqvist@fmi.fi.

Friday, February 11, 2022

PhD student: Exploring effects of alternative ditch management strategies on greenhouse gas fluxes in drained boreal forests

 

Ref SLU.ua.2022.2.5.1-462

Department of Forest Ecology and Management

The department includes about 100 people of which 11 are professors. Our mission is to advance the understanding of forest ecosystem processes and to progress the principles of forest ecosystem management. For more information: http://www.slu.se/en/departments/forest-ecology-management/

Exploring effects of alternative ditch management strategies on greenhouse gas fluxes in drained boreal forests

Description:

Over 2 milion ha of land has been drained in Sweden during the past century to increase forest production. Today, we are facing an extensive network of mostly degraded ditches for which we require management strategies that are sustainable, ecological and climate-friendly.  

Within this context, a PhD student position for exploring how alternative management strategies for forestry on drained soils affect greenhouse gas exchanges is available at the Department of Forest Ecology and Management, SLU. The main goal of this PhD project is to improve our understanding of how restoring drained peatland forests (i.e. rewetting by ditch-blocking) and conducting post-harvest ditch cleaning in forest clear-cuts affect the CO2 and CH4 exchanges. The project is based on chamber and eddy covariance flux measurements supported by a comprehensive suit of environmental and vegetation data. The study site is the recently established Trollberget research infrastructure (www.slu.se/en/departments/field-based-forest-research/experimental-forests/vindeln-experimental-forests/trollberget/) which is located close to Vindeln (Västerbotten county) and provides a unique platform for addressing these research questions. The results from this project will create an urgently needed empirical database to guide management decisions towards sustainable and climate-friendly forestry.  

The candidate will join a larger recently funded research project that includes several graduate students and senior scientists that conduct research on the question how management decisions within boreal forestry on drained soils affect processes related to hydrology, biodiversity and biogeochemistry. Within this setting, the student will be given opportunities for cross-project collaborations and to explore additional areas of interest.  

Qualifications:

We are searching for a highly motivated student with a MSc degree in Environmental Sciences, Physical Geography, Ecology or any related field. The candidate must have good communication skills, a strong work ethic, be a team player and work well in a research environment. A strong interest in and knowledge on the interactions between the carbon cycle and greenhouse gas exchanges with the global climate is required. Experience from studying the boreal peatland and/or forest carbon cycle is a desired merit. Experience with field data collection methods (ideally from flux chamber measurements) and computer program skills (Matlab, R) for handling large, high-frequency data sets are also considered as strong merits. The candidate must be fluent in English to be able to interact in an English-speaking research and work environment. A driving license valid in Sweden is required for accessing the field sites.

Place of work:      

Umeå

Forms for funding or employment:

Employment as a PhD student for 4 years

Starting date:

The position start date is flexible but is anticipated to be at the latest June 1, 2022

Application:

We welcome your application no later than February 25, 2022, use the button below

To qualify for third-cycle (Doctoral) courses and study programmes, you must have a second-cycle (Master’s) qualification. Alternatively, you must have conducted a minimum of four years of full-time study, of which a minimum of one year at second-cycle level.

Applicants will be selected based on their written application and CV, degree project, copies of their degree certificate and transcript of records from previous first and second-cycle studies at a university or higher education institution, two personal references, and knowledge of English. More information about the English language requirements can be found here: www.slu.se/en/education/programmes-courses/doctoral-studies/new-doctoral-students/english-language-requirements/

Please note that applicants invited to interview must submit attested copies of their degree certificate, a transcript of records from previous first and second-cycle studies at a university or higher education institution. Applicants who are not Swedish citizens need to submit an attested copy of their passport’s information page containing their photograph and personal details.

Read about the PhD education at SLU at www.slu.se/en/education/programmes-courses/doctoral-studies/

Academic union representatives:

https://internt.slu.se/en/my-employment/employee-associations/kontaktpersoner-vid-rekrytering/


The Swedish University of Agricultural Sciences (SLU) is a world-class international university with research, education and environmental assessment within the sciences for sustainable life. Its principal sites are in Alnarp, Umeå and Uppsala, but activities are also conducted at research stations, experimental parks and educational establishments throughout Sweden. We bring together people who have different perspectives, but they all have one and the same goal: to create the best conditions for a sustainable, thriving and better world.

SLU has just over 3,000 employees, 5,000 students and a turnover of SEK 3 billion. The university has invested heavily in a modern, attractive environment on its campuses.

www.slu.se

Contact person

Järvi Järveoja

Researcher

jarvi.jarveoja@slu.se

Wednesday, February 02, 2022

Postdoc Position on Eddy-Covariance of Urban Greenhouse Gas Emissions (Freiburg, Germany)

 The Chair of Environmental Meteorology in the Institute of Earth and Environmental Sciences at the University of Freiburg (Germany) is advertising for a ==================================================== Post-doctoral researcher to work on eddy-covariance of urban greenhouse gas emissions ==================================================== Start-date: Earliest April 1, 2022 (later negotiable), 2,5-year contract at 100% E13 with possibility of an extension. We are seeking a post-doctoral researcher to develop eddy-covariance techniques to monitor and attribute carbon dioxide (CO2) emissions in cities. The goal of the research is to explore and test new approaches combing direct CO2 flux measurements with fluxes of co-emitted species and isotopes. Using a fast multi-gas analyser and a relaxed sampler system, we will measure fluxes of multiple compounds intermittently between 2022 and 2024 on tall (~100m) towers operated as part of pilot observatories in Zurich, Paris and Munich. Measured fluxes of CO2, its isotopic composition and co-emitted species will be combined with detailed source area models and fine-scale inventories to derive sector-specific flux ratios and to separate fossil fuel from biogenic carbon dioxide. This research is integrated into a multi-institutional effort to develop techniques to monitor urban emission reduction efforts and is coordinated by the European Research Infrastructure “Integrated Carbon Observation System” (ICOS, see https://urldefense.com/v3/__https://www.icos-cp.eu/projects/icos-cities-project__;!!BiR-i3uNs8L8!agcVuisefcFEF2A3qE0pgVrM0IvgQoAoY52SfPK0eX0nuJ2_mmZqI4LHEtJuguy3Z_E$ ). The work will include the preparation and operation of instrumentation during campaigns, data processing and quality control, and statistical data analysis in combination with models. Further, a significant part of the work includes the preparation of scientific publications as first author, the publication of open datasets and contributions to reports. The work place will be Freiburg, Germany. The position will be offered at the Chair of Environmental Meteorology in the Faculty of Environment and Natural Resources at the University of Freiburg and is supervised by Prof. Dr. Andreas Christen and co-supervised by Dr. Samuel Hammer from the University of Heidelberg (Germany). The successful candidate will be involved in field campaigns in all three ICOS pilot cities in Zurich, Paris and Munich and is expected to disseminate results at project meetings, conferences and in scientific publications. Applicants must hold a doctoral degree, or be very close to successful completion of a doctoral degree in meteorology, environmental sciences, environmental physics, atmospheric chemistry, physical geography, ecosystem sciences or a related field. Key competences include experience in operating field equipment (ideally with eddy covariance systems), ability to perform and organize field work, data analysis skills and experience with large datasets and time- series. Language requirement: English. Knowledge of German and/or French is an asset. The employment is according to TV-L E13 at 100% level for 2,5 years with the possibility of an extension. No teaching obligations. If you are interested in this opportunity, please submit: * Letter of intent detailing why you are interested in this position. * Curriculum Vitae listing your education, your past experience, any scientific publications, conference presentations or talks, programming and language skills, experience in field campaigns. * Copies of your university degree(s) with grades (B.Sc., M.Sc., doctoral degree), or alternatively documents that demonstrate imminent doctoral degree completion. * Suggestion of two referees with contact details. We particularly encourage applications from women for the position advertised here. International applicants are eligible to apply. Please send in a complete application along with the above-mentioned supporting documents by February 28, 2022 at the latest. Please send documents with reference to “ICOS Cities post- doctoral position” to the following address in written or electronic form (max 10 MB). All electronic submissions will be confirmed. Prof. Dr. Andreas Christen Department of Earth and Environmental Sciences Faculty of Environment and Natural Resources University of Freiburg Werthmannstraße 10 D-79085 Freiburg Germany Email: andreas.christen@meteo.uni-freiburg.de For further information, please contact Prof. Dr. Andreas Christen (andreas.christen@meteo.uni- freiburg.de)