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Exploiting the potential of an improved multimission altimetric data set over the coastal ocean

Exploiting the potential of an improved multimission altimetric data set over the coastal ocean
Exploiting the potential of an improved multimission altimetric data set over the coastal ocean
Until now, most satellite altimetry studies of the coastal ocean have been based on along-track data from a single mission, whereas up to four missions were operative in 2002–2005. Here, to monitor the coastal ocean we have applied specialized corrections and dedicated processing strategies to compute a multimission data set at a mean distance of 32 km of the coast. The resulting altimetric data set is compared with sea level data from three in situ stations over a coastal zone of the northwestern Mediterranean. The mean rms difference between this data set and the sea level stations is 2.9 cm against 3.7 cm when using the AVISO altimetric product. Comparison of altimeter-derived geostrophic velocities with a mooring also shows that the spatial and temporal variability of the surface current field is well reproduced. The agreement with in situ measurements extends to intraseasonal time scales showing a significant improvement compared to previous studies in the 50 km coastal-band.
0094-8276
L10601
Bouffard, J.
b02ab58f-e153-43e1-bc2b-6b926b5691f4
Vignudelli, S.
86bdf7f8-68da-4851-bc7b-c011620fd194
Cipollini, P.
276e356a-f29e-4192-98b3-9340b491dab8
Menard, Y.
24e3e71b-d366-47d7-891a-cd9e4e8074b0
Bouffard, J.
b02ab58f-e153-43e1-bc2b-6b926b5691f4
Vignudelli, S.
86bdf7f8-68da-4851-bc7b-c011620fd194
Cipollini, P.
276e356a-f29e-4192-98b3-9340b491dab8
Menard, Y.
24e3e71b-d366-47d7-891a-cd9e4e8074b0

Bouffard, J., Vignudelli, S., Cipollini, P. and Menard, Y. (2008) Exploiting the potential of an improved multimission altimetric data set over the coastal ocean. Geophysical Research Letters, 35 (10), L10601. (doi:10.1029/2008GL033488).

Record type: Article

Abstract

Until now, most satellite altimetry studies of the coastal ocean have been based on along-track data from a single mission, whereas up to four missions were operative in 2002–2005. Here, to monitor the coastal ocean we have applied specialized corrections and dedicated processing strategies to compute a multimission data set at a mean distance of 32 km of the coast. The resulting altimetric data set is compared with sea level data from three in situ stations over a coastal zone of the northwestern Mediterranean. The mean rms difference between this data set and the sea level stations is 2.9 cm against 3.7 cm when using the AVISO altimetric product. Comparison of altimeter-derived geostrophic velocities with a mooring also shows that the spatial and temporal variability of the surface current field is well reproduced. The agreement with in situ measurements extends to intraseasonal time scales showing a significant improvement compared to previous studies in the 50 km coastal-band.

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Published date: 2008
Organisations: National Oceanography Centre,Southampton

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Local EPrints ID: 54555
URI: https://eprints.soton.ac.uk/id/eprint/54555
ISSN: 0094-8276
PURE UUID: 5a042cf3-2c0b-43f4-b5e0-e23a1ca8553d

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Date deposited: 16 Jul 2008
Last modified: 13 Mar 2019 20:38

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Contributors

Author: J. Bouffard
Author: S. Vignudelli
Author: P. Cipollini
Author: Y. Menard

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