FN Archimer Export Format
PT J
TI An analysis of the tidal signal in the WOCE sea level dataset
BT 
AF PONCHAUT, F
   LYARD, F
   LE PREVOST, C
AS 1:1;2:1;3:1;
FF 1:;2:;3:;
C1 LEGOS, UMR 5566, F-31401 Toulouse 4, France.
C2 LEGOS, FRANCE
IF 1.096
TC 27
UR https://archimer.ifremer.fr/doc/00221/33178/31688.pdf
LA English
DT Article
CR NIVMER92/1
   NIVMER93
   NIVMER94- TRANSIT VALORISE
   NIVMER95
   NIVMER97
   NIVMER99 (VT 47)
   OISO3-NIVMER98
   VT 52 / NIVMER2000
   VT 54 / NIVMER02
BO Marion Dufresne
AB A new sea level observation network initiated by the World Ocean Circulation Experiment (WOCE) program is delivering hourly data from about 150 ocean stations worldwide. A complete analysis of these data was performed using a least squares method allowing better accuracy over time series virtually unlimited in time (up to 13 yr in this case). In addition to the classical tidal harmonic constants, the power density spectrum of the detided signal was computed. The 95% confidence intervals of the results of the analysis have been systematically estimated. The numerical and statistical methods applied to produce these numbers are presented for three stations as an illustration. One example of application of this new dataset and its error bars is the selection of a tidal constant set, which is useful for validating and comparing the long-period tide models. This selection is performed by eliminating stations where the oceanic continuum spectrum magnitude (around a given tidal frequency) is more than 25% of the corresponding tidal peak amplitude. This study intends to lead to a better exploitation of sea level observations, which contain highly valuable information in the tidal and nontidal domains. The authors conclude that the WOCE Sea Level network must be maintained, in particular for a combined use with the present and future satellite altimetry missions. Thus, the aim of this paper is to present a new analysis of the in situ sea level observations acquired within the WOCE program with a particular emphasis given to the precise determination of the tidal harmonic constants.
PY 2001
SO Journal Of Atmospheric And Oceanic Technology
SN 0739-0572
PU Amer Meteorological Soc
VL 18
IS 1
UT 000166474200006
BP 77
EP 91
DI 10.1175/1520-0426(2001)018<0077:AAOTTS>2.0.CO;2
ID 33178
ER

EF