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Wavenumber spectrum of along track data

Par olvac — Dernière modification 27/11/2015 10:32

This part concerns the computation of wavenumber spectrum of Saral/Altika along track data and colocalized  numerical data. S/A data have already been reprocessed.

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+ S/A raw data (ssha, ssh) have been reprocessed so far. Then, there are some missing values in the final data due to the removal of erroneous values. So, in order to compute the wavenumber spectrum which requires a continuous serie, we have filled some missing values for some cycles.

 

  • A.  Wavenumber spectrum of SSH for a S/A selected tracks

There are 18 cycles for each tracks.

For each track, some cycles have been selected according to the amount of the missing values: the fewer the number of the missing values, the better the cycle.

Tracks776490991518905361

Range of latitude

8.5 - 6.2°S8.2 - 6.7°S11.3 - 9.3°S12.80 - 8.8°S12.5 - 7°S12.5 - 7°S

 

  • Ba. Comparative wavenumber spectrum of Saral/Altika and 1/36° numerical model data.
Tracks776490991518905361

 

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  • Bb. Comparative wavenumber spectrum of Saral/Altika and 1/36° numerical model data (almost 2 years of data).

Sampling of S36: one daily data every 35days    ; samling of Srl: one data evey 35 days

Tracks

1year (S36: 1996; Srl: cylce 1..12)

776 518

2years (S36: 1995-1996; Srl: cylce 1..20)

2years(bis)

776

776

518

518

 

991

 

905

 

361

 

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  • Bb. Comparative wavenumber spectrum of Saral/Altika (red), Jason2(black) and 1/36° numerical model.

          - map of Saral/Altika and Jason2 tracks

         - Hovmuller of Jason2 data (track 73)

         - wavenumber spectrum of Saral/Altika -Jason2-S36

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