Abstract Impacts into icy bodies often generate near‐surface melt chambers and thermal perturbations that soften the ice. We explore post‐impact evolution of non‐penetrating impacts Europa's ice shell. Simulations viscous deformation show dense impact melts founder before refreezing. If transient cavity depth exceeds half shell thickness, over 40% drains underlying ocean. Drainage from to ocean occurs on timescales 10 3 –10 4 years. The drainage for all plausible thicknesses viscosities,...

Abstract The habitability of oceans within icy worlds depends on material and heat transport through their outer ice shells. Previous work shows a methane clathrate layer at the upper surface shell Titan thickens convecting region, while Pluto base hinders convection. In this way, dynamics clathrate‐ice shells may be essential to thermal evolution ocean worlds. However, studies date have not addressed that determine location clathrates shell. Here, we show that, in contrast previous studies,...

Abstract. We use a simplified glacier-landscape model to investigate the degree which basin topography, climate regime, and vegetation succession impact centennial variations in runoff during glacier retreat. In all simulations, annual initially increases as water is released from storage but ultimately decreases below preretreat levels due evapotranspiration orographic precipitation. characterize long-term (> 200 years) curves with four metrics: magnitude timing of peak runoff, time end...

Abstract We investigate the effects of methane clathrates on Titan’s thermal and seismic structure. The Dragonfly mission is planned to arrive at Titan in 2033 with a payload that includes package. instruments are tasked recording events recovering internal Here, we explore whether differences profiles between pure water ice shell an clathrate lid could be detectable instrumentation. Due their lower conductivity, reduce conductive thickness thus altering profile. velocities ice, coupled...

Abstract. The dynamic loss of ice via outlet glaciers around the Greenland Ice Sheet is a major contributor to sea level rise. However, retreat history and ensuing mass neighboring are disparate, complicating projections Here, we examine stress balance evolution for three prior to; at onset of; during; and, where possible, after retreat. We find no or thickness changes preceding retreat, implicating trigger ice–ocean boundary. Terminus initiates large-scale in state terminus. This includes...

Abstract Mountain glaciers have response times that govern retreat due to anthropogenic climate change. We use geometric attributes estimate individual for 383 in the Cascade mountain range of Washington State, USA. Approximately 90% estimated are between 10 and 60 years, with many large on short end this distribution. A simple model glacier dynamics shows entails consequential differences recent ongoing changes: decadal nearly kept pace warming, but those multi-decadal far from equilibrium,...

Contemporary models representing the thermal conductivity of ice Ih as a function temperature are based on data from published experiments that span over century. Each model is derived using specific datasets with distinct experimental setups, ranges, and uncertainties. Model errors introduced by inaccurate digitization biased datapoints challenging to trace due lack transparency primary data. This dataset collection for Ih, including both tabulated digitized data, presented in original...

Abstract. We couple a glacier flow model to simplified landscape investigate the effects of dynamics, climate, and vegetation succession on annual basin runoff during retreat. Basin initially increases as water is released from storage but eventually decreases below preretreat levels due in evapotranspiration altitudinal losses precipitation. Peak time peak are primarily determined by with shallow sloping continental glaciers experiencing largest (up 62 %) longest until 142 years), compared...

Motor Imagery (MI) based Brain-Computer Interfaces (BCI) typically require the collection of subject-specific calibration data to build a classifier motor intent. The BCI users are then trained over multiple online sessions with real-time feedback using calibrated decoder acquire MI skills. session is thought be necessary for accurate decoding due wide variability in electroencephalogram (EEG) signals across population. process acquiring long and tedious includes training individualized...

Earth and Space Science Open Archive PosterOpen AccessYou are viewing the latest version by default [v1]Methane Clathrate Effects on Seismic Propagation within TitanAuthorsAngelaMarusiakiDSteveVanceMarkPanningiDAndrea SBryantMarcHesseiDEvanCarnahanBaptisteJournauxSee all authors Angela MarusiakiDCorresponding Author• Submitting AuthorJet Propulsion Laboratory, California Institute of TechnologyiDhttps://orcid.org/0000-0001-6925-1383view email addressThe was not providedcopy addressSteve...

Abstract. The dynamic loss of ice via outlet glaciers around the Greenland Ice Sheet is a major contributor to sea level rise. However, retreat history and ensuing mass neighboring are disparate, complicating projections Here, we examine stress balance evolution for three prior to, at onset of, during, and, where possible, after retreat. We find no or thickness changes precede retreat, implicating trigger ice-ocean boundary. Terminus initiates large-scale in state terminus. This includes...