Great new paper by Dominic Hodgson and Tom Jordan from #BAS.

Using #Lidar, #Radar & #AirbornePhotography data, they identify the rapid drainage and slow refilling of a ~46m subglacial lake on the #AntarcticPeninsula.

Such findings have implications for the connectivity of the surface and #Subglacial hydrological networks, and, the authors hypothesise, the thermal regime of the #Ice.

Read the #OpenAccess paper here: https://doi.org/10.5194/tc-16-4797-2022

#DomsDailyPolarPaper #Cryosphere #Antarcticles

#Antarctic #IceShelves are not just smooth, perfect slabs of floating #Ice, but rather contain areas of damaged ice that affect their strength and flow.

Building on previous work, Maaike Izeboud & Stef Lhermitte show how their "NeRD" method can detect different types and scales of damage (e.g. crevasse fields, large rifts, shear zones) in both SAR and optical #RemoteSensing datasets.

Read the full #OpenAccess article here: https://doi.org/10.1016/j.rse.2022.113359

#DomsDailyPolarPaper #Cryosphere #Antarcticles

Direct measurements of physical properties in the #Cryosphere are often hard to come by, so I enjoyed reading this paper by Simon Oster and Mary Albert.

They measure the effective thermal conductivity (~ ability to transfer heat) of #Firn from #Antarctica, reporting values down to a depth of 48m, and showing conductivity can be well-explained as an exponential function of either density or depth.

Read the #OpenAccess article here: https://doi.org/10.1017/jog.2022.28

#DomsDailyPolarPaper #Antarcticles

I always enjoy thinking about novel ways to combine #RemoteSensing datasets!

This new paper, led by Clément Soriot, shows that observations made by radiometers (AMSR, SMAP) strongly correlate with high-precision, #Altimetry-derived estimates of #SeaIce thickness in the #Arctic.

This technique could allow us to create a #TimeSeries of daily sea-ice thickness back to the 1980's.

Read the full #OpenAccess paper here:
doi.org/10.1029/2022EA002542

#DomsDailyPolarPaper #Cryosphere #Arcticles

Here's an interesting recent modelling study led by Brice Noël about the ability of the #Greenland #Icesheet to retain #Meltwater in the #Firn layer under different #EmissionScenarios.

They show, under #SSP5-8.5, that the amount of meltwater that can refreeze will peak as early as 2100 in SW Greenland, subsequently leading to increased surface #Runoff and accelerated #SeaLevelRise.

Read the #OpenAccess article here: https://doi.org/10.1038/s41467-022-34524-x

#DomsDailyPolarPaper #Cryosphere #Arcticles

I spend most of my time reading about #Antarctica, but this new paper led by Pia Nielsen-Englyst at #DTU is a sobering reminder of just how much #ClimateChange is heating up the #Arctic.

Between 1982 and 2021, the surface #Temperature of the Arctic Ocean (i.e. open ocean or sea ice >58ºN) warmed by around 4.5ºC on average, and up to 10ºC (ten!) in parts of the north-eastern Barents Sea.

Read the full #OpenAccess paper here: https://doi.org/10.1016/j.rse.2022.113331

#DomsDailyPolarPaper #Arcticles #Cryosphere