FN Archimer Export Format
PT J
TI Perspectives on present-day sea level change: a tribute to Christian le Provost
BT 
AF LOMBARD, Alix
   CAZENAVE, Anny
   LE TRAON, Pierre-Yves
   GUINEHUT, Stephanie
   CABANES, Cecile
AS 1:1;2:1;3:2;4:2;5:3;
FF 1:;2:;3:PDG-DPS-LOS;4:;5:;
C1 CNES, LEGOS, F-31401 Toulouse 9, France.
   IFREMER, Plouzane, France.
   JPL, Pasadena, CA USA.
C2 CNES, FRANCE
   IFREMER, FRANCE
   JPL, USA
SI BREST
SE PDG-DPS-LOS
   PDG-DOP-DCB-OPS-LPO
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-int-hors-europe
IF 1.165
TC 19
UR https://archimer.ifremer.fr/doc/2006/publication-2201.pdf
LA English
DT Article
DE ;Ocean warming;Climate change;Thermal expansion;Sea level
AB In this paper, we first discuss the controversial result of the work by Cabanes et al. (Science 294:840-842, 2001), who suggested that the rate of past century sea level rise may have been overestimated, considering the limited and heterogeneous location of historical tide gauges and the high regional variability of thermal expansion which was supposed to dominate the observed sea level. If correct, this conclusion would have solved the problem raised by the IPCC third assessment report [Church et al, Cambridge University Press, Cambridge, pp 881, 2001], namely, the factor two difference between the 20th century observed sea level rise and the computed climatic contributions. However, recent investigations based on new ocean temperature data sets indicate that thermal expansion only explains part (about 0.4 mm/year) of the 1.8 mm/year observed sea level rise of the past few decades. In fact, the Cabanes et al.'s conclusion was incorrect due to a contamination of abnormally high ocean temperature data in the Gulf Stream area that led to an overestimate of thermal expansion in this region. In this paper, we also estimate thermal expansion over the last decade (1993-2003), using a new ocean temperature and salinity database. We compare our result with three other estimates, two being based on global gridded data sets, and one based on an approach similar to that developed here. It is found that the mean rate of thermosteric sea level rise over the past decade is 1.5 +/- 0.3 mm/year, i.e. 50% of the observed 3 mm/year by satellite altimetry. For both time spans, past few decades and last decade, a contribution of 1.4 mm/year is not explained by thermal expansion, thus needs to be of water mass origin. Direct estimates of land ice melt for the recent years account for about 1 mm/year sea level rise. Thus, at least for the last decade, we have moved closer to explaining the observed rate of sea level rise than the IPCC third assessment report.
PY 2006
PD DEC
SO Ocean Dynamics
SN 1616-7341
PU Springer
VL 56
IS 5-6
UT 000243189900006
BP 445
EP 451
DI 10.1007/s10236-005-0046-x
ID 2201
ER

EF