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Postdoctoral Research Assistant in satellite remote sounding and analysis of the initial Hunga-Tonga volcanic cloud
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further particulars: 169962 jd-and-person-spec-physics-mar23-HTHH-A.pdf
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comment: Applications are invited for a Postdoctoral Research Assistant in satellite remote sounding and analysis of the initial Hunga-Tonga volcanic cloud. The post is available initially for a fixed-term duration of 2 years 8 months. The aim of this project is to characterise the eruption and the initial evolution of the volcanic plume (first 48 hours) from satellite data complemented by measurements of lightning (WWLLN), ionospheric waves, surface seismic waves and atmospheric pressure waves (from surface stations and radiosondes). It is expected that this work will lead to fundamental papers on the formation of volcanic clouds and their interaction with the atmosphere. The principal task of the project is to characterise the ash, ice and sulphuric acid formed by the Hunga-Tonga eruption by applying the Optimal Retrieval of Aerosol and Cloud (ORAC) algorithm to imager data (Himawari, GOES, SLSTR, VIIRS, MODIS) accounting for the high-levels of water vapour and sulphur dioxide. The successful candidate will develop a high resolution atmospheric radiative transfer model using existing transmission (The RFM) and multiple scattering (e.g. DISORT) code. This code will be used to simulate top-of-atmosphere radiance (0.5 - 16 um) for a range of volcanic plume structures and compositions. This dataset will be used to compare different volcanic cloud satellite retrievals. Applicants should possess, or be very close to obtaining a doctorate in physics or a related field. Previous experience in radiative transfer and the use of satellite measurements will be an advantage. Candidates are expected to demonstrate experience in coding preferably using Python or Fortran. The post-holder will have the opportunity to teach. Please direct enquiries about the role to r.grainger@physics.ox.ac.uk Only applications received before midday 8 January 2024 can be considered. You will be required to upload a brief statement of research interests, CV and details of two referees as part of your online…
application closing date: 2024-01-08T12:00:00+00:00
salary: Grade 07S: £36,024 - £39,347 per annum
application opening date: 2023-12-07T09:00:00+00:00
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value: _________________________________________________________________________ Job Description and Selection Criteria Job title Postdoctoral Research Assistant in the measurement and analysis of the initial Hunga-Tonga volcanic cloud Division Mathematical Physical and Life Sciences Department Physics Location Clarendon Laboratory Grade and salary Grade 07S: £36,024 - £39,347 per annum Hours Full time Contract type Fixed-term (2 years 8 months) Reporting to Don Grainger Vacancy reference 169962 Additional information Closing date – midday on 8 January 2024 Research topic Hunga-Tonga Volcanic Cloud Principal Investigator / supervisor Prof. Don Grainger Project team Dr Isabelle Taylor, Dr Scott Osprey Project web site http://eodg.atm.ox.ac.uk/group/eodg/index.html Funding partner The funds supporting this research project are provided by NERC. Recent publications http://eodg.atm.ox.ac.uk/group/eodg/publications_papers.html The role The eruption of Hunga-Tonga in January 2022 generated a volcanic cloud of enhanced concentrations of water and sulphur dioxide combined with particles of ash, ice and sulphuric acid. The aim of this project is to characterise the eruption and the initial evolution of the volcanic cloud (first 48 hours) from satellite data complemented by measurements of lightning (WWLLN), ionospheric waves, surface seismic waves and atmospheric pressure waves (from surface stations and radiosondes). It is expected that this work will lead to fundamental papers on the formation of volcanic clouds and their interaction with the atmosphere. Initially this will involve developing a high resolution atmospheric radiative transfer model using existing transmission (The RFM) and multiple scattering (e.g. DISORT) code. This code will be used to simulate top-of-atmosphere radiance (0.5 - 16 um) for a range of volcanic plume structures and compositions. This will contribute to a simulated dataset which will be used to compare different volcanic cloud satellite retrievals. T…
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