Blar i forfatter "Hubbard, A."

Viser treff 1-2 av 2

    • Greenland Ice Sheet surface melt amplified by snowline migration and bare ice exposure 

      Ryan, J.C.; Smith, L.C.; Van As, D.; Cooley, S.W.; Cooper, M.G.; Pitcher, L.H.; Hubbard, A. (Journal article; Tidsskriftartikkel; Peer reviewed, 2019-03-06)
      Greenland Ice Sheet mass loss has recently increased because of enhanced surface melt and runoff. Since melt is critically modulated by surface albedo, understanding the processes and feedbacks that alter albedo is a prerequisite for accurately forecasting mass loss. Using satellite imagery, we demonstrate the importance of Greenland’s seasonally fluctuating snowline, which reduces ice sheet albedo ...

    • Surface Meltwater Impounded by Seasonal Englacial Storage in West Greenland 

      Kendrick, A.K.; Schroeder, D.M.; Chu, W.; Young, T.J.; Christoffersen, P.; Todd, J.; Doyle, S.H.; Box, J.E.; Hubbard, A.; Hubbard, B.; Brennan, P.V.; Nicholls, K. W.; Lok, L.B. (Journal article; Tidsskriftartikkel; Peer reviewed, 2018-09-24)
      The delivery of surface meltwater through englacial drainage systems to the bed of the Greenland Ice Sheet modulates ice flow through basal lubrication. Recent studies in Southeast Greenland have identified a perennial firn aquifer; however, there are few observations quantifying the input or residence time of water within the englacial system and it remains unknown whether water can be stored within ...