FN Archimer Export Format
PT J
TI Impact of high-frequency waves on the ocean altimeter range bias - art. no. C11006
BT 
AF VANDEMARK, D
   CHAPRON, Bertrand
   ELFOUHAILY, T
   CAMPBELL, J
AS 1:1,5;2:2;3:3,4;4:4;
FF 1:;2:PDG-DOP-DCB-OPS-LOS;3:;4:;
C1 NASA, Goddard Space Flight Ctr, Biospher & Hydrospher Lab, Wallops Isl, VA 23337 USA.
   Inst Francais Rech Exploitat Mer, Ctr Brest, DRO OS, F-29280 Plouzane, France.
   Univ Miami, Rosenstiel Sch Marine Sci, Miami, FL 33149 USA.
   Univ New Hampshire, Ocean Proc Anal Lab, Durham, NH 03824 USA.
   CNRS, Inst Rech Phenomenes Hors Equilibre, Marseille, France.
C2 NASA, USA
   IFREMER, FRANCE
   UNIV MIAMI, USA
   UNIV NEW HAMPSHIRE, USA
   CNRS, FRANCE
SI BREST
SE PDG-DOP-DCB-OPS-LOS
IN WOS Ifremer jusqu'en 2018
   copubli-france
   copubli-int-hors-europe
IF 2.784
TC 15
UR https://archimer.ifremer.fr/doc/2005/publication-4549.pdf
LA English
DT Article
AB [1] New aircraft observations are presented on the range determination error in satellite altimetry associated with ocean waves. Laser-based measurements of the cross correlation between the gravity wave slope and elevation are reported for the first time. These observations provide direct access to a long, O(10 m), gravity wave statistic central to nonlinear wave theory prediction of the altimeter sea state bias. Coincident Ka-band radar scattering data are used to estimate an electromagnetic ( EM) range bias analogous to that in satellite altimetry. These data, along with ancillary wind and wave slope variance estimates, are used alongside existing theory to evaluate the extent of long-versus short-wave, O( cm), control of the bias. The longer wave bias contribution to the total EM bias is shown to range from 25 to as much as 100%. Moreover, on average the term is linearly related to wind speed and to the gravity wave slope variance, consistent with WNL theory. The EM bias associated with interactions between long and short waves is obtained assuming the effect is additive to the independently observed long-wave factor. This second component is also a substantial contributor, is observed to be quadratic in wind speed or wave slope, and dominates at moderate wind speeds. The behavior is shown to be consistent with EM bias prediction based in hydrodynamic modulation theory. Study implications for improved correction of the on-orbit satellite sea state bias are discussed.
PY 2005
PD NOV
SO Journal of Geophysical Research ( JGR ) - Oceans
SN 0148-0227
PU American Geophysical Union
VL 110
IS C11
UT 000233356600002
DI 10.1029/2005JC002979
ID 4549
ER

EF