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Italian Activity in SOOP-VOS

PMO-3-INT Hamburg 23-24 March, 2006. Italian Activity in SOOP-VOS. Franco Reseghetti Giuseppe M.R. Manzella ENEA – La Spezia (on behalf of GNOO – National Group in Operational Oceanography ). PMO-3-INT Hamburg 23-24 March, 2006. Outline of the presentation.

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Italian Activity in SOOP-VOS

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  1. PMO-3-INT Hamburg 23-24 March, 2006 Italian Activity in SOOP-VOS Franco Reseghetti Giuseppe M.R. Manzella ENEA – La Spezia (on behalf of GNOO – National Group in Operational Oceanography)

  2. PMO-3-INT Hamburg 23-24 March, 2006 Outline of the presentation • MFS- VOS in the Mediterranean • Participants • Activity in 2005 • Perspectives

  3. PMO-3-INT Hamburg 23-24 March, 2006 MFS-VOS in the Mediterranean • SOOP is in the framework of MFS • SOOP in Mediterranean is coordinated by ENEA • Collaboration with CSIC-CEAB (Spain), CNRS-LOB-COM (France), CNR & OGS (Italy), IOF (Croatia), HCMR (Greece), IMS-METU (Turkey), OC-UCY (Cyprus),IOLR (Israel).

  4. PMO-3-INT Hamburg 23-24 March, 2006 MFS-VOS in the Mediterranean • Started in September 1999 • Sustained by: • MFSPP (EC-DG Research) • ADRICOSM (Italian Min. Environment) • MFSTEP (EC-DG Research) • Activities in the framework of EuroGOOS and MedGOOS • Supports the Mediterranean Forecasting System • Included in the GMES Ocean component (Integrated Project: MERSEA)

  5. PMO-3-INT Hamburg 23-24 March, 2006 MFS-VOS in the Mediterranean From 1999 to 2006

  6. PMO-3-INT Hamburg 23-24 March, 2006 MFS-VOS in the Mediterranean MFS-PPADRICOSMMFS-TEP From 1999 to 2005

  7. PMO-3-INT Hamburg 23-24 March, 2006 MFS-VOS in the Mediterranean in 2005 Genova-Palermo Ploce-Malta

  8. PMO-3-INT Hamburg 23-24 March, 2006 MFS-VOS in the Mediterranean in 2005 SOOP+COOP  DB (>1000), T4(>100), T7(>100), T5(<20)

  9. PMO-3-INT Hamburg 23-24 March, 2006 MFS-VOS in the Mediterranean in 2005 Improved data acquisition and q.c. procedures

  10. PMO-3-INT Hamburg 23-24 March, 2006 XBT launch system

  11. GPS MFSTEP version MK12/21 card XBT launcher connection

  12. PMO-3-INT Hamburg 23-24 March, 2006 From ARGOS to Globalstar • Early, only some significant points extracted from the temperature profiles were transmitted by mean of ARGOS in real time. • In order to have the full resolution profiles, the data transmission system was changed: GSM & Internet systems. The data were transmitted in near-real time, e.g. with a delay of about 12 – 20 hours from data collection. • Now, full resolution profiles are transmitted by means of the Globalstar system. • Data are transmitted from ships to ENEA MFS-VOS Thematic Data Centre. Satellite allows a “TRUE”real time transmission. GSM transmission is (probably) less expensive, but it is possible only in near coastal areas. In case of long tracks a delay is expected.

  13. PMO-3-INT Hamburg 23-24 March, 2006 From ARGOS to Globalstar Genova-Palermo

  14. PMO-3-INT Hamburg 23-24 March, 2006 Data QC Procedures Original NRT.QC.XBT procedure (Manzella, Scoccimarro, Pinardi, Tonani - 2003): • Initial visual check • Position control, gross range check & spikes analysis • Interpolation at 1 m interval, then Gaussian smoothing • Comparison with climatology • Final visual check, providing an overall consistency QC profiles are available on ENEA WEB page within ~ 1 h delay

  15. PMO-3-INT Hamburg 23-24 March, 2006 Web page (general)

  16. PMO-3-INT Hamburg 23-24 March, 2006 Web page (LAS)

  17. PMO-3-INT Hamburg 23-24 March, 2006 Comparison between XBT and ARGO I Lybia Red= ARGO, Blue=XBT

  18. PMO-3-INT Hamburg 23-24 March, 2006 Comparison between XBT and ARGO II Red= ARGO, Blue=XBT

  19. PMO-3-INT Hamburg 23-24 March, 2006 Data Acquisition Improvements Extended acquisition* (in blue nominal values) • T4 (70.5 s) 460 m • 21 kn ≤ V ≤ 27 kn(230 XBT):<> = 80.6 ± 1.1 s ~ 550 m • DB (118.3 s) 760 m • V ≤ 20 kn(1312 XBT):<> = 140.9 ± 1.8 s ~ 900 m • T7 (118.3 s)760 m • V ≤ 15 kn(68 XBT):<> = 142.5 ± 2.2 s ~ 900 m • T5 (290.6 s)  1830 m • V ≤ 7 kn(8 XBT):<> = 351.0 ± 10.9 s ~ 2100 m *Only probes with t  tnom, 2004-2005 measurements.

  20. PMO-3-INT Hamburg 23-24 March, 2006 QC procedures Improvements I • Data are QC with a unique (improved) NRT procedure and released. • The Gaussian filter smoothes too much the raw T values, mainly where dT/dz is significant. Each profile is divided in 3 regions (from the surface down to the seasonal thermocline, thermocline region, bottom), with different Gaussian filter values. The time t0 at which dT/dz starts is selected: four consecutive t intervals where dT/dz < - 0.1 ºC (nominal XBT accuracy) • Temperature values from surface to 3 m depth and last three values,a t the bottom, are eliminated (instead 5 m).

  21. PMO-3-INT Hamburg 23-24 March, 2006 QC procedures Improvements II NEW HEADER for all the q.c. profiles on ENEA WEB page • *IE4820050916054004 Data Type=H13 Ship Name=LA SUPERBA CallSign=ICGK • *DATE=16092005 TIME=0540 LAT=N41 24.97 LON=E 11 4.18 DEPTH=-999. QC=1119 • *NB PARAMETRES=02 RECORD LINES=00766 • *PRES SEA PRESSURE sea surface=0 (DECIBAR=1000 PASCALS) def.= -999.99 • *TEMP SEA TEMPERATURE (CELSIUS DEGREE) def.= 99.999 • *GLOBAL PROFILE QUALITY FLAG=1 GLOBAL PARAMETERS QC FLAGS=11 • *DC HISTORY=XBTs; XBT TYPE= TD; ACQUISITION TIME (s)=120.5; • * • *DM HISTORY=QC IN NEAR REAL TIME - MFS SOFTWARE • * • *COMMENT:PROJECT=MFSTEP ; LAUNCH H(m)=11; SPEED(kn)=23-27; WIND SPEED(kn)=10; • * • *SURFACE SAMPLES= • * • *PRES(DBAR) TEMP(°C)

  22. PMO-3-INT Hamburg 23-24 March, 2006 Perspectives for 2006 • Same procedures for data flow and QC. • Continuation of data collection in Italian Seas (ADRICOSM-EXT: Dubrovnik-Bari & Ploce-Malta) and Genova-Palermo, with the addition of meteo-stations. • Other ‘Cruises Of Opportunity’ in the Mediterranean (Italian R/V URANIA) and Cyprus – Egypt transect (in collaboration with UCY). • Technological improvements, such as multiple launcher and multi-parametric probe (XBT-F).

  23. PMO-3-INT Hamburg 23-24 March, 2006 Data processing improvement • Depth error • Accuracy on temperature values • The use the ACQUISITION TIME (fixed increments due to the 10 Hz sampling rate) as free parameter. Then, the order of operations at point 3) in qc procedure has to be inverted. • START-UP problem. Systematic difference at the seasonal thermocline depth. The XBT recording system needs time before it measures stable T values (within 0.1 ºC). The observed averaged delay is 0.3 ± 0.1 s. Each profile could be rescaled. • NEW FALL RATE COEFFICIENTS seem to be required in Mediterranean for XBTs. The addition of a fine-tuning (based on XBT calibration results) seems to be also possible. • The accuracy on T values seems to be dependent on depth and occurring thermal structures.

  24. PMO-3-INT Hamburg 23-24 March, 2006 Thank You!

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