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Today's Topics:
1. NERC-funded Ph.D. studentship in climate and ocean sciences
at the University of Liverpool (Williams, Ric)
2. NERC-funded Ph.D. studentship in climate and ocean sciences
at the University of Liverpool (Williams, Ric)
3. NERC-funded Ph.D. studentship in atmospheric and ocean
sciences at the University of Liverpool (Williams, Ric)
4. Centre for Climate Research Singapore vacancies (Roger Brugge)
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Message: 1
Date: Wed, 6 Jan 2016 12:19:59 +0000
From: "Williams, Ric" <ric@liverpool.ac.uk>
To: "met-jobs@lists.reading.ac.uk" <met-jobs@lists.reading.ac.uk>
Cc: "Williams, Ric" <ric@liverpool.ac.uk>
Subject: [Met-jobs] NERC-funded Ph.D. studentship in climate and ocean
sciences at the University of Liverpool
Message-ID: <72A22B2E-E45A-4801-A54B-C66BA1FF0D8C@liverpool.ac.uk>
Content-Type: text/plain; charset="utf-8"
NERC-funded Ph.D. studentship in climate and ocean sciences at the University of Liverpool
Project title: How is climate variability controlled in the North Atlantic?
Supervisors: Prof. Ric Williams (Liverpool), Dr Vassil Roussenov (Liverpool)
External supervisors and institution: Dr Doug Smith (Hadley Centre); Prof. Susan Lozier (Duke University, USA). Approved as a UK Met Office studentship
Contact: ric@liv.ac.uk<mailto:ric@liv.ac.uk>
Introduction:
This studentship examines how climate change is operating in the North Atlantic Ocean. The general expectation for climate change is that the ocean is warming and there is a stronger freshwater cycle. However, analysis of historical data reveals a more complex response in the North Atlantic. There are extensive regions of warm and salty anomalies, changing in time to cool and fresh anomalies, and then returning to warm and salty anomalies [Lozier et al., 2008, Science; Williams et al., 2014, J. Climate]. This studentship aims to investigate how this ocean variability is controlled, addressing both the issue of natural variability and the imprint of climate forcing.
Project Summary:
The studentship aims to investigate the mechanisms by which climate variability is occurring in the North Atlantic, including why there is a more complex regional response than the expected basin-scale signals of surface warming and a strengthening in the freshwater cycle.
The studentship will examine the following research questions:
* Ocean redistribution of heat and salt often obscures the expected climate-change signals of surface warming and a strengthening in the freshwater cycle, as well as potentially affecting the signature in surface warming;
* Surface forcing generally induces density anomalies in the surface ocean, which are communicated over the basin through changes in the ocean circulation and overturning;
* Part of the surface forcing of temperature and salinity is density compensated and will form warm and salty or cold and fresh anomalies. These opposing temperature and salinity anomalies are relatively persistent and long lived, as these density-compensated signals do not alter the circulation. Temperature and salinity contrasts over the ocean basin are then possibly formed via a passive advection of density-compensated signals by the background circulation.
The studentship will be part of the NERC funded UK-OSNAP programmme: Overturning in the Subpolar North Atlantic, http://www.ukosnap.org/, designed to understand how the temperature and salinity properties of the high latitude North Atlantic are controlled. The student will have an extended visit to work with Professor Susan Lozier (Duke University, USA), who leads the international OSNAP programme, as well as attending national meetings and having the opportunity to participate in fieldwork.
The plan of work for the student involves:
1. Analyse the climate variability using historical data in the North Atlantic.
2. Compare the temperature and salinity anomalies in the historical data with the implied anomalies induced by air-sea heat and freshwater fluxes;
3. Assess how the climate anomalies are communicated over the basin and how persistent climate anomalies are formed by integrating ocean circulation experiments. The ocean anomalies can either contain density anomalies or be density-compensated with opposing temperature-salinity anomalies;
4. The student will analyse recent subpolar North Atlantic data being gathered from the ongoing UK-OSNAP programme, comparing observations of temperature, salinity and density changes in the subpolar gyre with implied diagnostics of the heat and freshwater transport into the subpolar gyre.
Eligibility:
Our studentships are funded by NERC and are available to UK nationals and other EU nationals that have resided in the UK for three years prior to commencing the studentship. If you meet this criteria, funding will be provided for tuition fees and stipend. If you are a citizen of a EU member state you will eligible for a fees-only award.
Applicants should have a strong academic track record with a science degree, such as including Ocean Sciences, Meteorology, Mathematics, Physics or Engineering. The project involves analysing data and integrating ocean models, so that the student needs to have an aptitude for quantitative work.
Application process:
To apply follow the instructions at www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/how-to-apply/<http://www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/how-to-apply/>
Deadline: 4 February 2016
Informal inquiries may be directed to: Ric Williams (ric@liverpool.ac.uk<mailto:ric@liverpool.ac.uk>)
Full details of the project, see www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/studentships/ocean/howisclimatevariabilitycontrolledinthenorthatlantic.html<http://www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/studentships/ocean/howisclimatevariabilitycontrolledinthenorthatlantic.html>
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Message: 2
Date: Wed, 6 Jan 2016 12:24:26 +0000
From: "Williams, Ric" <ric@liverpool.ac.uk>
To: "met-jobs@lists.reading.ac.uk" <met-jobs@lists.reading.ac.uk>
Cc: "Williams, Ric" <ric@liverpool.ac.uk>
Subject: [Met-jobs] NERC-funded Ph.D. studentship in climate and ocean
sciences at the University of Liverpool
Message-ID: <511EED04-0842-4188-82C7-E498F4F5F111@liverpool.ac.uk>
Content-Type: text/plain; charset="utf-8"
NERC-funded Ph.D. studentship in climate and ocean sciences at the University of Liverpool
Project title: Ocean circulation control of heat and carbon uptake
Supervisors: Prof. Ric Williams (Liverpool), Dr Phil Goodwin (Southampton), Dr Alessandro Tagliabue (Liverpool), & Prof. David Schultz (Manchester);
External supervisors and institution: Dr Jonathan Lauderdale & Prof. Mick Follows (MIT)
Contact: ric@liverpool.ac.uk<mailto:ric@liv.ac.uk>
Introduction:
This studentship examines a fundamental question of how the ocean uptake of heat and carbon from the atmosphere are related to each other. There is a general expectation that the ocean uptake of heat and carbon will increase and follow each other given the rise in atmospheric CO2 and the background warming of the climate system. We wish to assess how the ocean uptake of heat and carbon varies, and how they are related to each other, for different ongoing changes in ocean circulation, including changes in the meridional overturning in the North Atlantic and Southern Ocean, and changes in the tropical circulation involving El Nino/La Nina cycles.
This project is motivated by the question of why global warming is nearly linearly proportional to carbon emissions, a central outcome of the IPCC [2013] report. We have explained this response by assuming that the global ocean uptake of heat and CO2 due to climate change is similar to each other [Goodwin, Williams & Ridgwell, 2015, Nature Geoscience]. However, what is unknown is how similar the ocean uptake of heat and carbon is for changes in ocean circulation, such as changes in meridional overturning in the North Atlantic and Southern Ocean, or El Nino/La Nina cycles.
Project Summary:
This project aims to investigate how the ocean uptake of heat and CO2 varies for changes in ocean circulation, including regional changes in ocean overturning and El Nino/La Nina states.
The plan of work for the student involves analysing the thermal and carbon responses of the ocean and climate system using a hierarchy of models, perturbed by changes in physical forcing.
Our research questions are:
* ocean heat and CO2 uptake are likely to be similar for the upper ocean involving gyre circulation;
* ocean heat and CO2 uptake are likely to differ for the deep ocean involving the overturning circulation, where there is an asymmetrical response in the Atlantic and Pacific.
The student will investigate the ocean heat and CO2 uptake for a range of physical perturbations, including changes in North Atlantic and Southern Ocean overturning, and in El Nino/La Nina cycles.
These physical perturbations will be applied to a range of simple to more complex models including
* 2 layer model of the ocean, where changes in upper ocean heat content will be assessed, and including a slab atmosphere to provide the radiative forcing;
* an efficient multi-layer ocean box model for an idealised global domain;
* a state of the art MIT ocean general circulation model, which we have used to explore how ocean overturning affects atmospheric CO2 on millennial timescales;
* the Fast Ocean Atmosphere Model, NCAR Community Earth System Model to explore ocean overturning and heat uptake in a coupled atmosphere and ocean model.
The outcomes of the work are relevant to a central question of the last IPCC report, which is why surface warming is linearly dependent on carbon emissions. In our view, this response is a consequence of the how the ocean takes up heat and carbon [Goodwin et al., 2014, Nature Geoscience] and long-term dependencies of the climate system [Williams et al., 2012, GRL]. This project will test that assertion.
This work plan can be revised and modified according to the input and aptitude of the student.
The student will have the opportunity for an extended visit to project partners, Jon Lauderdale and Mick Follows at MIT, to gain skills in integrating the MIT GCM. Training in the idealised atmospheric-ocean coupled model is provided by David Schultz at Manchester.
Eligibility:
Our studentships are funded by NERC and are available to UK nationals and other EU nationals that have resided in the UK for three years prior to commencing the studentship. If you meet this criteria, funding will be provided for tuition fees and stipend. If you are a citizen of a EU member state you will eligible for a fees-only award.
Applicants should have a strong academic track record with a science degree, such as including Ocean Sciences, Meteorology, Mathematics, Physics or Engineering. The project involves analysing data and integrating ocean models, so that the student needs to have an aptitude for quantitative work.
Application process:
To apply follow the instructions at www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/how-to-apply/<http://www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/how-to-apply/>
Deadline: 4 February 2016
Informal inquiries may be directed to: Ric Williams (ric@liverpool.ac.uk<mailto:ric@liverpool.ac.uk>)
Full details of the project, see www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/studentships/ocean/oceancirculationcontrolofheatandcarbonuptake.html<http://www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/studentships/ocean/oceancirculationcontrolofheatandcarbonuptake.html>
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Message: 3
Date: Wed, 6 Jan 2016 12:25:45 +0000
From: "Williams, Ric" <ric@liverpool.ac.uk>
To: "met-jobs@lists.reading.ac.uk" <met-jobs@lists.reading.ac.uk>
Cc: "Williams, Ric" <ric@liverpool.ac.uk>
Subject: [Met-jobs] NERC-funded Ph.D. studentship in atmospheric and
ocean sciences at the University of Liverpool
Message-ID: <F3CFF374-F804-45B5-A042-0C92E55AFB7A@liverpool.ac.uk>
Content-Type: text/plain; charset="utf-8"
NERC-funded Ph.D. studentship in atmospheric and ocean sciences at the University of Liverpool
Project title: How does atmospheric jet stream position and blocking affect the North Atlantic Ocean?
Supervisors: Prof. Ric Williams (Liverpool), Dr Vassil Roussenov (Liverpool), Dr Tim Woollings (Oxford) and Prof. Geraint Vaughan (Manchester)
External supervisors and institution: Prof. Susan Lozier (Duke University, USA)
Contact: ric@liverpool.ac.uk<mailto:ric@liv.ac.uk>
Introduction:
This studentship examines how different atmospheric regimes affect the ocean heat storage and overturning in the North Atlantic Ocean and the wider climate system.
The prevailing view is that much of the ocean variability in heat storage in the North Atlantic is understood in terms of slowly varying climate modes, i.e. fixed pressure patterns such as the North Atlantic Oscillation. Instead we wish to explore how the ocean heat uptake and overturning is controlled by the position and frequency of individual weather systems, in particular atmospheric blocks, which determine the path of the jet stream. The jet stream can be in a variety or regimes, such as involving undisturbed flow, wave-like undulations, persistent deflections to the south or north linked to atmospheric blocks.
Project Summary:
The studentship will examine the following research questions:
* The jet stream regime and position of atmospheric high pressure systems affects the ocean heat content changes;
* The ocean subtropical warming is linked to the strength of the Trade winds, while the ocean subpolar warming is linked to the wind forcing and air-sea fluxes over the Labrador Sea.
The plan of work for the student involves:
1. Identifying different atmospheric regimes using two century long weather centre reanalyses from 1900 to the present day.
2. Compare the atmospheric regimes for blocking and jet indices with our estimates of ocean heat storage based upon reanalyses of historical data in the North Atlantic.
3. Test our ideas of how the atmospheric regimes control the ocean heat content response by forcing ocean circulation models.
4. Assess how the different atmospheric regimes then affect the wider climate response, altering the rate of sea surface warming and the storage of heat in the upper and deep ocean.
This work plan can be revised and modified according to the input and aptitude of the student.
The studentship will be part of the NERC funded UK-OSNAP programmme: Overturning in the Subpolar North Atlantic, http://www.ukosnap.org/. The student will have repeated short visits to work with Dr Tim Woollings. In addition, the student will have the opportunity to visit and work with Professor Susan Lozier (Duke University, USA), who leads the international OSNAP programme, as well as attending national meetings and having the opportunity to participate in fieldwork.
Eligibility:
Our studentships are funded by NERC and are available to UK nationals and other EU nationals that have resided in the UK for three years prior to commencing the studentship. If you meet this criteria, funding will be provided for tuition fees and stipend. If you are a citizen of a EU member state you will eligible for a fees-only award.
Applicants should have a strong academic track record with a science degree, such as including Ocean Sciences, Meteorology, Mathematics, Physics or Engineering. The project involves analysing data and integrating ocean models, so that the student needs to have an aptitude for quantitative work.
Application process:
To apply follow the instructions at www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/how-to-apply/<http://www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/how-to-apply/>
Deadline: 4 February 2016
Informal inquiries may be directed to: Ric Williams (ric@liverpool.ac.uk<mailto:ric@liverpool.ac.uk>)
Full details of the project, see www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/studentships/ocean/howdoesatmosphericjetstreampositionandblockingaffectthenorthatlantic.html<http://www.liverpool.ac.uk/studentships-earth-atmosphere-ocean/studentships/ocean/howdoesatmosphericjetstreampositionandblockingaffectthenorthatlantic.html>
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Message: 4
Date: Thu, 7 Jan 2016 09:05:24 +0000
From: "Roger Brugge" <r.brugge@reading.ac.uk>
To: "met-jobs@lists.reading.ac.uk" <met-jobs@lists.reading.ac.uk>
Subject: [Met-jobs] Centre for Climate Research Singapore vacancies
Message-ID:
<B510E661B180DE459DF354D6B8026C1DA93185D2@vime-mbx5.rdg.ac.uk>
Content-Type: text/plain; charset="utf-8"
Please find attached 3 vacancy notices:
Seasonal Forecasting in Singapore
Research Officer/Research Scientist
Annual salaries will be in the range of SGD 44K to 99K. The starting salary and the level of entry
will depend upon experience. In addition to annual salary, a performance-related bonus payment
and relocation allowances will apply.
Appointments will be for a 2-year initial period.
Deadline for applications: 7 February 2016
Regional Climatologist Research Position Singapore
Research Officer/Research Scientist
Annual salaries will be in the range of SGD 44K to 99K. The starting salary and the level of entry
will depend upon experience. In addition to annual salary, a performance-related bonus payment
and relocation allowances will apply.
Appointments will be for a 2-year initial period.
Deadline for applications: 7 February 2016
Climate Science in Singapore
Senior Research Scientist/Deputy Principal Research Scientist
Annual salaries will be in the range of SGD 67 to 148K. The starting salary and the level of entry
will depend upon experience. In addition to annual salary, a performance-related bonus payment
and relocation allowances will apply.
Appointments will be for a 2-year initial period.
Deadline for applications: 7 February 2016
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