FN Archimer Export Format
PT J
TI Sea surface salinity as a proxy for Arctic Ocean freshwater changes
BT 
AF Fournier, Severine
   Lee, Tong
   Wang, Xiaochun
   Armitage, Thomas W. K.
   Wang, Ou
   Fukumori, Ichiro
   Kwok, Ron
AS 1:1;2:1;3:2;4:3;5:1;6:1;7:1;
FF 1:;2:;3:;4:;5:;6:;7:;
C1 Jet Propulsion Laboratory, California Institute of Technology Pasadena California, USA
   Joint Institute for Regional Earth System Science and Engineering, University of California Los Angeles Los Angeles California, USA
   Earth System Science Interdisciplinary Center, University of Maryland College Park Maryland ,USA
C2 JET PROP LAB, USA
   UNIV CALIF LOS ANGELES, USA
   UNIV MARYLAND, USA
SI REST
IF 3.405
TC 21
UR https://archimer.ifremer.fr/doc/00630/74164/73778.pdf
LA English
DT Article
DE ;Arctic;sea surface height;gravimetry;sea surface salinity;freshwater
AB The changing Arctic freshwater content and distribution have significant implications for ocean circulation, climate, and water and biogeochemical cycles. The paucity of in‐situ salinity measurements in the Arctic Ocean has limited our ability to study Arctic‐Ocean freshwater variability. Although satellite‐derived sea surface height (SSH) and ocean bottom pressure (OBP) have been used together to infer depth‐integrated freshwater content changes, these measurements are limited in sampling and resolution. Motivated by the recent development of sea surface salinity (SSS) remote sensing, we explore the use of SSS as a proxy for Arctic freshwater changes. As a first step, here we conduct a proof‐of‐concept study by analyzing the output of an ocean‐ice state estimation product. We find that SSS variations are coherent with those of SSH‐minus‐OBP across the Arctic basin (with R ~ ‐0.8) except for in the center of the Beaufort Gyre and the region affected by the subpolar North Atlantic inflow. On Arctic shelves, the linear regression coefficient between SSS and SSH‐minus‐OBP is ‐0.3 pss/cm or larger in magnitude. The results suggest that SSS is a good proxy for Arctic freshwater changes, and satellite SSH‐minus‐OBP can be used to evaluate satellite SSS quality. 
PY 2020
PD JUN
SO Journal Of Geophysical Research-oceans
SN 2169-9275
PU American Geophysical Union (AGU)
VL 125
IS 7
UT 000560011100031
DI 10.1029/2020JC016110
ID 74164
ER

EF