Software download and FAQ

As part of the SeaDataNet CDI data discovery and access services, data sets are accessible to users via download services. Data sets are then delivered in common data transport formats, which interact with other SeaDataNet standards (Vocabularies, Quality Flag Scale) and SeaDataNet analysis & presentation tools (ODV, DIVA).

Depending on their local data management configuration, data centres might be required to pre-process their in-house data files from their own formats to the SeaDataNet data formats. To support data centres for this conversion, SeaDataNet is providing NEMO software as a useful tool (written in java). NEMO enables conversion from any type of ASCII format to the SeaDataNet ODV and Medatlas ASCII formats as well as the SeaDataNet NetCDF (CF) format (for timeseries, profiles and trajectories observations) . NEMO makes use of the Common Vocabularies and EDMO directory. The latter are each time synchronised by online connections to the respective Web Services on user demand.

NEMO software (V2.0.1) 10/05/2023 


  •  Fix a regression with non-CSV files model uploading due to the new CSV parser

NEMO software (V2.0.0) 24/04/2023 

Nemo 2.0.0 focuses on new functions and tools to ease the use of NEMO:  (see the presentation of the New functions of NEMO 2.0.0)


  • General changes
    • Help tab at the bottom of the main screen removed and replaced by access to the user manual in the '?' menu of NEMO
    • Menu Right-click search function removed and replaced by a Search window for fields with a list of values
    • Use of mouse wheel no longer results in changing values in already entered fields 
    • Display of line numbers in input file preview 
  •  File tab
    • Reload button added to reload the input file after changes without resetting all tabs
    • Data Column Selection:
      • Multiple line selection for data table header displayed in the data Tab
      • Line selection containing P01 or P09 to allow Autofill in the data Tab
  • Cruise tab: EDMERP codes instead of project description
  • Data tab: New functions added
    • Drag and drop available in the parameter table
    • Multiline selection for the addition or the deletion of an instrument, a input or/and an output default value, a format, a unit in the parameter table
    • For CSV files: Auto-fill of the parameter table
    • For CSV files: Auto-fill of the start and end position in the parameter table for the measured parameter and the corresponding flags
  • The CDI summary file for MIKADO has been enriched to provide more metadata, to increase the FAIRness
    • Additional columns in the CDI summary : L05 (L22-L05 mapping) and L22 instrument codes, EDMERP codes, Cruise alternative name and CSR id, Cruise start date, Sampling rate and unit, Bounding box for trajectories, Station start and end date, Min and max measurement depth, Bottom depth
    • Additional files created with the CDI summary file:
      • EDMERP codes
      • Curves of the cruise tracks for trajectories
  • New BatchBuilder tool to create .bat or .sh batch command files
    • using a mapping file for the batch arguments when dealing with a set of files

Examples of input files, NEMO models and output files converted with NEMO :

See NEMO presentation:

and corresponding video.

NEMO is fit for use on Windows and Unix platforms. NEMO has been initiated and is now further developed as part of SeaDataNet by partner IFREMER