FN Archimer Export Format
PT J
TI Improvements to estimating the air-sea gas transfer velocity by using dual-frequency, altimeter backscatter
BT 
AF GODDIJN-MURPHY, Lonneke
   WOOLF, David
   CHAPRON, Bertrand
   QUEFFEULOU, Pierre
AS 1:1;2:2;3:3;4:3;
FF 1:;2:;3:PDG-ODE-LOS;4:PDG-ODE-LOS;
C1 UHI NHC, Environm Res Inst, Thurso KW14 7EE, Scotland.
   Heriot Watt Univ, Int Ctr Isl Technol, Stromness, Scotland.
   IFREMER, Plouzane, France.
C2 UNIV HIGHLANDS & ISL, UK
   UNIV HERIOT WATT, UK
   IFREMER, FRANCE
SI BREST
SE PDG-ODE-LOS
IN WOS Ifremer jusqu'en 2018
   copubli-europe
IF 4.769
TC 11
UR https://archimer.ifremer.fr/doc/00174/28564/26980.pdf
LA English
DT Article
DE ;Air-sea gas transfer;Satellite altimetry;DMS
AB Air-sea gas exchange is affected by sea surface roughness and a previous study shows a significant relation between Ku-band backscattering from satellite altimeters and field estimates of gas transfer velocity, K. Recently C-band backscatter data were made available for altimeters on board the JASON-1 and JASON-2 satellites. In this paper we used experimental data from the same cruises to show that using the difference between the Ku-band and C-band signals to estimate sea surface roughness, and thus reducing the contribution from longer waves, improved the K estimates. This is consistent with the theory that gas transfer is largely controlled by short capillary-gravity waves. For satellite data closer than 2 hr and 0.5 degrees from the K sample stations, the dual-frequency parameterization is found to perform better than a wind speed parameterization that uses in situ wind speed. The improvement supports the hypothesis that gas transfer is more directly related to surface roughness than to surface wind.
PY 2013
PD DEC
SO Remote Sensing Of Environment
SN 0034-4257
PU Elsevier Science Inc
VL 139
UT 000329417700001
BP 1
EP 5
DI 10.1016/j.rse.2013.07.026
ID 28564
ER

EF