Space and planetary research at Lancaster University
Lead Research Organisation:
Lancaster University
Department Name: Physics
Abstract
This consolidated supports a programme of STFC-funded research into the physics of various plasma environments within our solar system. The programme is thus divided into five distinct projects, the aims of which are as follows:
- Project 1 will use spacecraft measurements to identify, model and explain the occurrence of flows in the Earth's magnetosphere whose directions disagree with expectations based on our current understanding of large-scale magnetospheric dynamics.
- Project 2 will use interplanetary magnetic field (IMF) and statistical modelling techniques appropriate to extreme values to quantify the extremes of IMF strength observed at the Earth and, based on two decades of observations, estimate the expected return levels and return periods over longer timescales.
- Project 3 will explore how intrinsic asymmetries in the magnetosphere-ionosphere-thermosphere coupled system affect the deposition and distribution of auroral heat throughout Jupiter's thermosphere and quantify the heat deposited directly in the mid-to-equatorial latitude thermosphere via coupling with localised stratospheric storms.
- Project 4 will investigate how remote sensing observations can reveal the distribution and transport of plasma within the magnetospheres of Saturn and Jupiter. To achieve this, we will exploit the full dataset of imagery of Saturn's auroras by the Hubble Space Telescope and a suite of instruments on board the Cassini spacecraft to determine the azimuthal and radial plasma flows and investigate their role in plasma circulation.
- Project 5 will utilise Voyager 2 flyby data in order to obtain better constraints on the internal magnetic fields, and hence interiors, of Uranus and Neptune. The motivation for this is primarily to enable a better understanding of the interiors of these planets.
- Project 1 will use spacecraft measurements to identify, model and explain the occurrence of flows in the Earth's magnetosphere whose directions disagree with expectations based on our current understanding of large-scale magnetospheric dynamics.
- Project 2 will use interplanetary magnetic field (IMF) and statistical modelling techniques appropriate to extreme values to quantify the extremes of IMF strength observed at the Earth and, based on two decades of observations, estimate the expected return levels and return periods over longer timescales.
- Project 3 will explore how intrinsic asymmetries in the magnetosphere-ionosphere-thermosphere coupled system affect the deposition and distribution of auroral heat throughout Jupiter's thermosphere and quantify the heat deposited directly in the mid-to-equatorial latitude thermosphere via coupling with localised stratospheric storms.
- Project 4 will investigate how remote sensing observations can reveal the distribution and transport of plasma within the magnetospheres of Saturn and Jupiter. To achieve this, we will exploit the full dataset of imagery of Saturn's auroras by the Hubble Space Telescope and a suite of instruments on board the Cassini spacecraft to determine the azimuthal and radial plasma flows and investigate their role in plasma circulation.
- Project 5 will utilise Voyager 2 flyby data in order to obtain better constraints on the internal magnetic fields, and hence interiors, of Uranus and Neptune. The motivation for this is primarily to enable a better understanding of the interiors of these planets.
Planned Impact
The main beneficiaries of this research will be:
Space Weather stakeholders: As awareness of the societal and economic impact of space weather grows, so do the demands to develop operational forecast models to enable infrastructure operators to manage exposure to the space weather hazards and mitigate the risks of system failure. The outputs of the programme work will be crucial to current international efforts in understanding the motion of energy and mass in the magnetosphere. The applicants (and wider SPP group) have an excellent track record of engagement with space weather research, industry and high-level government stakeholders and will exploit established knowledge exchange routes to maximize the impact of our research outputs in these groups.
Schools students and the public: SPP researchers have a strong track-record of engaging with non-specialist audiences (the public, school audiences, the media and policy-makers). Lancaster University is located in the centre of the North West, the third most populous of the UK's nine official regions. Eight of the twenty most deprived local authority areas are located in the North West. Secondary school league tables from the region show that less than 30% of disadvantaged pupils achieved 5+ A*-C GCSEs, compared with 69-53% in the top five authorities in the UK. The outreach programme in the Physics Department plays an important role in the North West in reversing this inequality and includes in-school activities by the applicants, physics roadshows, and on-campus activities including residential programmes, work experience, and Masterclasses for years 12 and 13. These activities are partly supported by the Ogden Trust and the Lancaster University Widening Participation office. To expand and supplement these activities, the applicants have recently purchased a portable inflatable planetarium, named LUniverse, with funding provided by Lancaster University and STFC. The addition of LUniverse to our public engagement portfolio will lead to engagement with different audiences beyond the department's existing program; it will also involve STFC science supported by this Consolidated Grant application. Furthermore, the planetarium project is part of STFC's Wonder Initiative, which particularly focuses on engaging children aged 8-14, and their families and carers, from the 40% most socioeconomically deprived areas in the UK, and we are particularly targeting audiences in this bracket.
Space Weather stakeholders: As awareness of the societal and economic impact of space weather grows, so do the demands to develop operational forecast models to enable infrastructure operators to manage exposure to the space weather hazards and mitigate the risks of system failure. The outputs of the programme work will be crucial to current international efforts in understanding the motion of energy and mass in the magnetosphere. The applicants (and wider SPP group) have an excellent track record of engagement with space weather research, industry and high-level government stakeholders and will exploit established knowledge exchange routes to maximize the impact of our research outputs in these groups.
Schools students and the public: SPP researchers have a strong track-record of engaging with non-specialist audiences (the public, school audiences, the media and policy-makers). Lancaster University is located in the centre of the North West, the third most populous of the UK's nine official regions. Eight of the twenty most deprived local authority areas are located in the North West. Secondary school league tables from the region show that less than 30% of disadvantaged pupils achieved 5+ A*-C GCSEs, compared with 69-53% in the top five authorities in the UK. The outreach programme in the Physics Department plays an important role in the North West in reversing this inequality and includes in-school activities by the applicants, physics roadshows, and on-campus activities including residential programmes, work experience, and Masterclasses for years 12 and 13. These activities are partly supported by the Ogden Trust and the Lancaster University Widening Participation office. To expand and supplement these activities, the applicants have recently purchased a portable inflatable planetarium, named LUniverse, with funding provided by Lancaster University and STFC. The addition of LUniverse to our public engagement portfolio will lead to engagement with different audiences beyond the department's existing program; it will also involve STFC science supported by this Consolidated Grant application. Furthermore, the planetarium project is part of STFC's Wonder Initiative, which particularly focuses on engaging children aged 8-14, and their families and carers, from the 40% most socioeconomically deprived areas in the UK, and we are particularly targeting audiences in this bracket.
Publications
Bader A
(2021)
A Complete Data Set of Equatorial Projections of Saturn's Energetic Neutral Atom Emissions Observed by Cassini-INCA
in Journal of Geophysical Research: Space Physics
Chowdhury M
(2022)
Saturn's Weather-Driven Aurorae Modulate Oscillations in the Magnetic Field and Radio Emissions
in Geophysical Research Letters
Dunn W
(2023)
Exploring Fundamental Particle Acceleration and Loss Processes in Heliophysics through an Orbiting X-ray Instrument in the Jovian System
in Bulletin of the AAS
Guo R
(2021)
A Rotating Azimuthally Distributed Auroral Current System on Saturn Revealed by the Cassini Spacecraft
in The Astrophysical Journal Letters
Kinrade J
(2021)
The Statistical Morphology of Saturn's Equatorial Energetic Neutral Atom Emission
in Geophysical Research Letters
Weigt D
(2023)
Identifying the Variety of Jovian X-Ray Auroral Structures: Tying the Morphology of X-Ray Emissions to Associated Magnetospheric Dynamics
in Journal of Geophysical Research: Space Physics
Xu Y
(2023)
A Possible Unified Picture for the Connected Recurrent Magnetic Dipolarization, Quasi-Periodic ENA Enhancement, SKR Low-Frequency Extension and Narrowband Emission at Saturn
in Journal of Geophysical Research: Space Physics
Xu Y
(2023)
On the Relation Between Jupiter's Aurora and the Dawnside Current Sheet
in Geophysical Research Letters
Title | Cassini INCA equatorial ENA projections |
Description | This dataset contains equatorial projections of all energetic neutral atom observations of Saturn's magnetosphere obtained by the Cassini spacecraft's Ion and Neutral Camera (INCA). These are accompanied by the Python code which was used to generate them, as well as some Python code useful for loading the projections along with metadata and geometric information for further scientific analyses. More details on usage of the data are provided in the accompanying technical report by Bader, Kinrade et al. (2021), accessible at https://doi.org/10.1029/2020JA028908. |
Type Of Material | Database/Collection of data |
Year Produced | 2021 |
Provided To Others? | Yes |
Impact | These projections are the result of a new algorithm (see accompanying technical paper by Bader, Kinrade et al., [2021, JGR Space Physics], https://doi.org/10.1029/2020JA028908) designed to re-bin and re-project the camera-like views from the spacecraft-based perspective into a common reference frame. This simplifies the large-scale analyses of this vast dataset, and the projections are both accessible and valuable for the investigation of magnetospheric and auroral physics at Saturn. The first science paper based on this dataset (see Kinrade, Bader et al. [2021, GRL], https://doi.org/10.1029/2020GL091595) presents the statistical morphology of Saturn's equatorial ENA emission. |
URL | https://doi.org/10.17635/lancaster/researchdata/384 |
Description | Cassini MIMI/INCA ENA imagery & particle injections |
Organisation | Johns Hopkins University |
Department | Applied Physics Laboratory (APL) |
Country | United States |
Sector | Charity/Non Profit |
PI Contribution | We analyse Cassini MIMI/INCA imagery and measurements to identify diagnostic features of magnetospheric and auroral dynamics, and work closely with Prof. Don Mitchell and Dr Chris Paranicas, members of the instrument team. We took the 'raw' INCA imagery on the NASA PDS node, and re-calibrated the imagery captured by Cassini during the entire mission (see Bader, Kinrade et al., 2021), and produced the first mission-wide statistical maps of the equatorial energetic neutral atom (ENA) emission across different energies and species (see Kinrade, Bader et al., 2021). |
Collaborator Contribution | JHU APL provided both key technical and scientific discussion, particularly in the creation of the new, re-calibrated set of INCA projections (Bader, Kinrade et al., 2021), which required analysis of the original INCA manual and PDS node data, knowledge of instrument calibration effects and design nuances (e.g. mode switching voltage effects, sun-viewing, ion contamination times, sensor gain degradation, etc.), which also fed into discussions about the GRL paper on the statistical ENA morphology and its interpretation. |
Impact | Bader, Kinrade+ 2021: doi:10.1029/2020JA028908 Kinrade, Bader+ 2021: doi:10.1029/2020GL091595 |
Start Year | 2021 |