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<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">1. Nitrogen cycling and nitrous oxide emissions from tidal wetlands
<span style="color:black"><o:p></o:p></span></span></b></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">Anthropogenic disruption of the nitrogen cycle is the second most important global scale environmental issue.
The coastal zone plays a disproportionately large role in the downstream removal of terrestrial nitrogen and the global emissions of N<sub>2</sub>O (a potent greenhouse gas). The coastal zone is a mosaic of hydrologically connected open water and vegetated
aquatic ecosystems, but little is known about how this complex landscape controls anammox-denitrification trade-offs that maximise nitrogen removal but minimise N<sub>2</sub>O emissions under current and future climates. This Australian Research Council funded
Linkage project brings together coastal nitrogen process and N<sub>2</sub>O emission measurements, including surface water-groundwater interactions, and hydrodynamic-biogeochemical modelling to quantify and model nitrogen removal and N<sub>2</sub>O emissions
under current and future climates. <o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">We are currently seeking a PhD student to focus on tidal and seasonal effects on N<sub>2</sub>O emissions, and
controlling processes in Australian tidal wetlands. This project will use a combination of different techniques such as
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">stable isotopes, cavity ring down spectroscopy, process measurements and benthic and floating chambers.
</span><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">You will work as part of a multidisciplinary team of post-graduate, post-doctoral and senior biogeochemists, groundwater hydrologists and biogeochemical modellers across several institutions.
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><b><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">2. Carbon cycling and methane emissions from tidal wetlands<o:p></o:p></span></b></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">The coastal zone is a hotspot for carbon production and burial and associated CH<sub>4</sub> emissions. Little
is known about how the complex hydrological connection between inland, coastal and oceanic water and tidal wetlands controls trade-offs that maximise carbon burial but minimise CH<sub>4</sub> emissions under current and future climates. This project brings
together coastal carbon process and CH<sub>4</sub> emission measurements, including surface water-groundwater interactions, and hydrodynamic-biogeochemical modelling to quantify and model carbon burial and CH<sub>4</sub> emissions under current and future
climates.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">We are currently seeking a PhD student to focus on tidal and seasonal effects on CH<sub>4</sub> emissions, and
controlling processes in Australian tidal wetlands. This project will use a combination of different techniques such as
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">stable isotopes, cavity ring down spectroscopy, process measurements and benthic and floating chambers.</span><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">
You will work as part of a multidisciplinary team of post-graduate, post-doctoral and senior biogeochemists, groundwater hydrologists and biogeochemical modellers across several institutions.
<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="Default" style="text-align:justify;text-justify:inter-ideograph"><b><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">3. Greenhouse gas emission from Australian rivers
<o:p></o:p></span></b></p>
<p class="Default" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">Rivers are globally significant sources of greenhouse gases. However, these global estimates are poorly constrained
as they don’t include the ~50% of streams that run dry for part of each year. Critically, Australia is a dry continent, with highly variable hydrology, and many rivers are intermittent, but little is known about greenhouse gas emissions from Australian rivers.
<o:p></o:p></span></p>
<p class="Default" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="Default" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">We are currently seeking a PhD student to help redress this knowledge gap for Australian rivers. We are working
in coastal and inland rivers. The inland rivers work will require spending extended periods of field work in remote parts of Australia. This project will use a combination of different techniques such as
</span><span lang="EN-US" style="font-size:10.0pt;font-family:"Calibri Light",sans-serif;color:windowtext">stable isotopes, cavity ring down spectroscopy and floating chambers.
</span><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">You will work as part of a multidisciplinary team of post-graduate, post-doctoral and senior biogeochemists.<o:p></o:p></span></p>
<p class="MsoNormal" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="Default" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">The candidates will be based in the Centre for Coastal Biogeochemistry (</span><a href="https://twitter.com/biogeochemSCU"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">https://twitter.com/biogeochemSCU</span></a><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">,
</span><a href="https://www.scu.edu.au/centre-for-coastal-biogeochemistry/"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">https://www.scu.edu.au/centre-for-coastal-biogeochemistry/</span></a><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">)
at Southern Cross University (Australia). The Centre for Coastal Biogeochemistry has a world-class research group including a number of post-graduate, post-doctoral and senior researchers working in similar areas, providing an outstanding environment for intellectual
stimulation and opportunities for exchange of ideas. The Centre has world-class infrastructure including access to an extensive stable isotope facility with full technical support, a membrane inlet mass spectrometer (MIMS), well equipped inorganic and organic
chemistry laboratories, and a range of field equipment including benthic chambers, data sondes, Picarro Cavity Ring-down Spectrometers, Los Gatos isotope N<sub>2</sub>O analyser and a transportable Proton Transfer Reaction-Mass Spectrometer (PTR-MS) (see
</span><a href="http://scu.edu.au/coastal-biogeochemistry)"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">http://scu.edu.au/coastal-biogeochemistry)</span></a><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">. Southern
Cross University received the highest rank of 5.0 (well above world standard) in geochemistry in the most recent national research excellence assessment.
<o:p></o:p></span></p>
<p class="Default" style="text-align:justify;text-justify:inter-ideograph;text-indent:36.0pt">
<span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="Default" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">Applicants must have an Honours or Master degree, undertaken in English, in a related field such as biogeochemistry,
environmental chemistry, limnology, or closely related. The project will involve periods of intensive field measurements, laboratory work, and data processing. Experience with large data sets, stable isotopes and field work from 4WD and small boats will be
viewed favourably.<o:p></o:p></span></p>
<p class="Default" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="Default" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">Scholarships provide a tax-free annual stipend of $28,597 for 3 years (with a possible 3-month extension), and
</span><span style="font-size:10.0pt">tuition fees will be exempt for 4 years</span><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">. Interested applicants should send a CV and short (< 1 page) statement highlighting (1) which project
they are interested in (2) their research background and interests, with respect to the criteria above, to Prof Bradley Eyre (</span><a href="mailto:bradley.eyre@scu.edu.au)"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">bradley.eyre@scu.edu.au)</span></a><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">.
Only short-listed applicants will be notified. Closing date for applications is October 24, 2021. Starting date is April to July 2022
</span><span style="font-size:10.0pt">(for overseas applicants this will depend on Australian boarders and getting appropriate visas).</span><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif"><o:p></o:p></span></p>
<p class="Default" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif"><o:p> </o:p></span></p>
<p class="Default" style="text-align:justify;text-justify:inter-ideograph"><span style="font-size:10.0pt;font-family:"Calibri Light",sans-serif">Southern Cross University is based in Lismore, northern NSW, Australia (near Byron Bay). The region is a great place
to live with a perfect sub-tropical climate (not too hot, not too cold), some the best beaches and surfing in the world, plus great fishing, scuba diving and wilderness areas. The quality of life is high and the cost of living relatively low.<o:p></o:p></span></p>
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