Investigating meltwater flow beneath the Greenland Ice Sheet using a multi-tracer approach
Lead Research Organisation:
Aberystwyth University
Department Name: Inst of Geography and Earth Sciences
Abstract
see lead proposal - Bristol
People |
ORCID iD |
| Alun Hubbard (Principal Investigator) |
Publications
Hubbard A
(2011)
The Times Atlas and actual Greenland ice loss
in Geology Today
Doyle S
(2013)
Ice tectonic deformation during the rapid in situ drainage of a supraglacial lake on the Greenland Ice Sheet
in The Cryosphere
Chandler D
(2013)
Evolution of the subglacial drainage system beneath the Greenland Ice Sheet revealed by tracers
in Nature Geoscience
Lindbäck K
(2014)
High-resolution ice thickness and bed topography of a land-terminating section of the Greenland Ice Sheet
in Earth System Science Data
Doyle S
(2014)
Persistent flow acceleration within the interior of the Greenland ice sheet
in Geophysical Research Letters
Chauché N
(2014)
Ice-ocean interaction and calving front morphology at two west Greenland tidewater outlet glaciers
in The Cryosphere
Lindbäck K
(2015)
Subglacial water drainage, storage, and piracy beneath the Greenland ice sheet
in Geophysical Research Letters
Doyle S
(2015)
Amplified melt and flow of the Greenland ice sheet driven by late-summer cyclonic rainfall
in Nature Geoscience
Winsborrow M
(2016)
Regulation of ice stream flow through subglacial formation of gas hydrates
in Nature Geoscience
Mikkelsen A
(2016)
Extraordinary runoff from the Greenland ice sheet in 2012 amplified by hypsometry and depleted firn retention
in The Cryosphere
Ryan J
(2016)
Attribution of Greenland's ablating ice surfaces on ice sheet albedo using unmanned aerial systems
in The Cryosphere Discussions
Dow C
(2017)
Seismic evidence of mechanically weak sediments underlying Russell Glacier, West Greenland
in Annals of Glaciology
Fitzpatrick A
(2017)
Ice flow dynamics and surface meltwater flux at a land-terminating sector of the Greenland ice sheet
in Journal of Glaciology
Jones G
(2017)
An automated approach to the location of icequakes using seismic waveform amplitudes
in Annals of Glaciology
Dow C
(2017)
Upper bounds on subglacial channel development for interior regions of the Greenland ice sheet
in Journal of Glaciology
Nick F
(2017)
The response of Petermann Glacier, Greenland, to large calving events, and its future stability in the context of atmospheric and oceanic warming
in Journal of Glaciology
Ryan JC
(2018)
Dark zone of the Greenland Ice Sheet controlled by distributed biologically-active impurities.
in Nature communications
Christoffersen P
(2018)
Cascading lake drainage on the Greenland Ice Sheet triggered by tensile shock and fracture.
in Nature communications
Madsen MV
(2019)
Evidence of Isotopic Fractionation During Vapor Exchange Between the Atmosphere and the Snow Surface in Greenland.
in Journal of geophysical research. Atmospheres : JGR
Ryan JC
(2019)
Greenland Ice Sheet surface melt amplified by snowline migration and bare ice exposure.
in Science advances
| Description | We've found that the subglacial hydrological system beneath the GrIS evolves seasonally to effeciently encompass increased volume of melt-water. This result in a contrasting flow response of the ice sheet in marginal areas - where early summer acceleration is compensated by late summer/winter slow-down, whilst interior regions of the ice sheet (above the long-term ELA) appear to be undergoing long-term acceleration. |
| Exploitation Route | The project developed a unique chemical tracing system for investigating subglacial environments. |
| Sectors | Chemicals,Education,Environment,Other |
| Description | Alfred Wagner Institute - Seismic reflection & Geochemistry |
| Organisation | Alfred-Wegener Institute for Polar and Marine Research |
| Country | Germany |
| Sector | Private |
| PI Contribution | AWI equipment & personnel have targeted & carried out extensive seismic profiling across three of my NERC Greenland targets. |
| Collaborator Contribution | Full seismic & geochemical profiling, processing and analysis. |
| Impact | Multi-disciplinary. An ERC proposal under review. A NERC Large grant submission in prep. Five outputs in prep. |
| Start Year | 2013 |
| Description | BBC "Frozen Planet II" - expertise for consulatany & consultant & expert advisor on Store Glacier calving sequence in Netflix "Our Planet" documentary series (April, 2019) |
| Form Of Engagement Activity | A broadcast e.g. TV/radio/film/podcast (other than news/press) |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Public/other audiences |
| Results and Impact | Our Planet (A WWF & Silverback Films collaborative documentary series commissioned by Netflix) is a 6 part flagship doco. Global viewing figures are 15M+. As part of Greenland outreach activity connected with NERC/RCUK research on the Greenland ice sheet, Alun Hubbard advised and consulted on many aspects of the Greenland sequences including expert advice on the Store Glacier calving sequence - considered the highlight of Epsiode 1. |
| Year(s) Of Engagement Activity | 2016,2017,2018,2019 |
| Description | JacksGAP |
| Form Of Engagement Activity | A press release, press conference or response to a media enquiry/interview |
| Part Of Official Scheme? | No |
| Geographic Reach | International |
| Primary Audience | Public/other audiences |
| Results and Impact | JacksGAP - a youtube channel/phenomena, covered in collaboration with myself & WWF, my two NERC Greenland ice sheet fieldsites with a short (12 min) film documenting climate change. see https://www.youtube.com/watch?v=gE7vkCz39eg This film has now been viewed over 700,000 times & targets a young (17 to 21 year old audience) & has been highly acclaimed by various pundits. |
| Year(s) Of Engagement Activity | 2015 |
| URL | https://www.youtube.com/watch?v=gE7vkCz39eg |