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NRT Data Management. Giuseppe M.R.Manzella, Franco Reseghetti - ENEA on behalf of the MFS /ADRICOSM VOS group:

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Nrt data management

NRT Data Management

Giuseppe M.R.Manzella, Franco Reseghetti - ENEA

on behalf of the MFS/ADRICOSM VOS group:

M. Borghini – CNR – Italy, V. Cardin - OGS – Italy, A.Cruzado – CSIC CEAB – Spain, V. Dadic – IOF – Croatia, F. Grilli – CNR – Italy, C. Galli – CNR – Italy, M. I. Gertman – IOLR – Israel, V. Malacic – MBS – Slovenia, C. Millot – CNRS LOB COM – France, M. Morovic – IOF – Croatia, E. Oszoy – IMS METU – Turkey, C. Tziavos – HCMR – Greece, G. Zodiatis – UC OCY – Cyprus, G. Montanari – Daphne – Italy, S. Serra – Daphne – Italy, N. Smodakla – CMR – Croatia, M. Marini – CNR – Italy, and … many … many other colleagues …


Outline of the presentation

Outline of the presentation

  • MFS- VOS system

  • QA protocols

  • QC procedures

  • Data and viewing service

  • Data access


Mfs vos in the mediterranean

MFS-VOS in the Mediterranean

  • Started in September 1999

  • Sustained by:

  • MFSPP (EC-DG Research)

  • ADRICOSM (MATT)

  • MFSTEP (EC-DG Research)

  • ADRICOSM (IOC, MAE, MATT)


Mfs vos system

MFS-VOS system

  • Activities in the framework of EuroGOOS and MedGOOS

  • Supports the Mediterranean Forecasting System /Adricosm

  • Included in the GMES Ocean component


Requirements

Requirements

An ideal sampling design is based on four goals:

- 1. provide repetitive measurements along transects from coast to coast,

2. the transects must cross significant dynamical features of the circulation,

3. the sampling distance should resolve, as well as possible, the mesoscale,

4.  the technologies for data collection must be robust and simple, to be used on ships of opportunity, eventually by ship personnel.


Mfs vos xbt in the mediterranean

XBT data from Sept 1999 to June 2006

MFS-VOS (XBT) in the Mediterranean

MFSPP Adricosm PP MFSTEP Adricosm Ext


Adricosm ctd in the adriatic

Adricosm (CTD) in the Adriatic

Adricosm Pilot Project Adricosm Extension



Phases of monitoring system and qa qc

Phases of monitoring system and QA/QC

  • Design of the Monitoring System

  • Field work

  • Data telemetry

  • NRT data QC

  • Sampling strategy and technology

  • QA protocols for field work

  • Tecnology for full resolution data transmission

  • Methodology for NRT QC


Design

Design

  • Design of the Monitoring System

  • Field work

  • Data telemetry

  • NRT data QC

  • Sampling strategy and technology

  • QA protocols for field work

  • Tecnology for full resolution data transmission

  • Methodology for NRT QC


Design of the monitoring system

Design of the Monitoring System

  • Main paths and mesoscale


Design of the monitoring system1

Design of the Monitoring System

  • Dense Water formation





Technology

Technology

  • Sippican system

  • Industrial computer


Phases of monitoring system and qa qc1

Phases of monitoring system and QA/QC

  • Design of the Monitoring System

  • Field work

  • Data telemetry

  • NRT data QC

  • Sampling strategy and technology

  • QA protocols for field work

  • Tecnology for full resolution data transmission

  • Methodology for NRT QC


  • Check List (click)

  • Description of principles

  • Expected Results

  • Responsibility

  • Working Procedures

  • Deviation/Deficiencies

  • Expected data


Phases of monitoring system and qa qc2

Phases of monitoring system and QA/QC

  • Design of the Monitoring System

  • Field work

  • Data telemetry

  • NRT data QC

  • Sampling strategy and technology

  • QA protocols for field work

  • Tecnology for full resolution data transmission

  • Methodology for NRT QC


Transmission tools from argos to globalstar

Transmission tools: from ARGOS to Globalstar

  • Initially 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 with the use of GSM and 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 flow and qc

Data Flow and QC

  • Data are transmitted from ships to MFS-VOS Thematic Data Centre

  • Data are QC with a unique (improved) NRT procedure


Phases of monitoring system and qa qc3

Phases of monitoring system and QA/QC

  • Design of the Monitoring System

  • Field work

  • Data telemetry

  • NRT data QC

  • Sampling strategy and technology

  • QA protocols for field work

  • Tecnology for full resolution data transmission

  • Methodology for NRT QC




Qc methodology initial version

QC Methodology – Initial Version

  • The NRT.QC.XBT procedure then proceeds with 8 steps that in synthesis are (Manzella, Scoccimarro, Pinardi, Tonani - 2003)

    • initial visual check

    • gross range check*

    • position control*

    • elimination of spikes*

    • interpolation at 1 metre interval*

    • gaussian smoothing*

    • general malfunction control*

    • comparison with climatology*

    • final visual check, confirming the validity of profiles and providing an overall consistency


Comparison with climatology
Comparison with climatology

  • This is done in terms of ‘distance’ of the XBT data to the mean monthly profile. If this ‘distance’ is less than 2 standard deviations, the XBT data are considered of good quality, if it is between 2 – 4 standard deviation or is greater than 4 a flag standard deviations the data values are flagged.














Qc methodology improvement

QC Methodology Improvement

  • The use the ACQUISITION TIME (fixed increments due to the 10 Hz sampling rate) as free parameter.

  • The APPLICATION of Gaussian smoothing before interpolation at 1 metre interval.

  • 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 (2.0 m). Each profile could be rescaled.

  • NEW FALL RATE COEFFICIENTS seem to be required in Mediterranean for XBTs.

  • … (Paper by Reseghetti et al. Ocean Science – All improvements will be applied after the approval from SOOP community)


Mfs vos services

MFS-VOS Services

Data selection through user friendly interface (geographical, temporal, parameter, quality selection) – Data downloading

Data view (spatial and temporal distribution, vertical profiles, data, metadata)

Format transformation (MedAtlas, ODV)





Other services not visible in the web
Other services (not visible in the web)

Format transformation from:

  • EDF (Sippican) to MedAtlas and ODV

  • MedAtlas to ODV (ADRICOSM)

  • SeaBird to MedAtlas and ODV (ADRICOSM)


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