FN Archimer Export Format
PT J
TI Pathways of ocean heat towards Pine Island and Thwaites grounding lines
BT 
AF Nakayama, Yoshihiro
   Manucharyan, Georgy
   Zhang, Hong
   Dutrieux, Pierre
   Torres, Hector S.
   Klein, Patrice
   Seroussi, Helene
   Schodlok, Michael
   Rignot, Eric
   Menemenlis, Dimitris
AS 1:1,2;2:3;3:1;4:4;5:1;6:1,5;7:1;8:1;9:1;10:1,6;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;
C1 Jet Propulsion Laboratory, California Institute of Technology, 4800 Oak Grove Drive, Pasadena, CA, USA
   Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan
   California Institute of Technology, Pasadena, CA, USA
   Lamont-Doherty Earth Observatory, Columbia University, NY, USA
   Laboratoire de Physique des Océans, IFREMER‐CNRS‐IRD‐UBO, Plouzané, France
   Earth System Science, University of California Irvine, CA, USA
C2 JET PROP LAB, USA
   UNIV HOKKAIDO, JAPAN
   CALTECH, USA
   UNIV COLUMBIA, USA
   CNRS, FRANCE
   UNIV CALIF IRVINE, USA
UM LOPS
IN WOS Cotutelle UMR
   DOAJ
   copubli-int-hors-europe
IF 3.998
TC 40
UR https://archimer.ifremer.fr/doc/00593/70560/68742.pdf
   https://archimer.ifremer.fr/doc/00593/70560/68743.pdf
LA English
DT Article
AB In the Amundsen Sea, modified Circumpolar Deep Water (mCDW) intrudes into ice shelf cavities, causing high ice shelf melting near the ice sheet grounding lines, accelerating ice flow, and controlling the pace of future Antarctic contributions to global sea level. The pathways of mCDW towards grounding lines are crucial as they directly control the heat reaching the ice. A realistic representation of mCDW circulation, however, remains challenging due to the sparsity of in-situ observations and the difficulty of ocean models to reproduce the available observations. In this study, we use an unprecedentedly high-resolution (200 m horizontal and 10 m vertical grid spacing) ocean model that resolves shelf-sea and sub-ice-shelf environments in qualitative agreement with existing observations during austral summer conditions. We demonstrate that the waters reaching the Pine Island and Thwaites grounding lines follow specific, topographically-constrained routes, all passing through a relatively small area located around 104°W and 74.3°S. The temporal and spatial variabilities of ice shelf melt rates are dominantly controlled by the sub-ice shelf ocean current. Our findings highlight the importance of accurate and high-resolution ocean bathymetry and subglacial topography for determining mCDW pathways and ice shelf melt rates. 
PY 2019
PD NOV
SO Scientific Reports
SN 2045-2322
PU Springer Science and Business Media LLC
VL 9
IS 1
UT 000498056300001
DI 10.1038/s41598-019-53190-6
ID 70560
ER

EF