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requirements.md

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Requirements and Use Cases

Below are some of the key requirements for the workflows included in this project:

Data Logging (Flow Use Case #1)

  • Take data from the instrument and write it to a file
  • Frequency: ~1 per hour
  • Example: Vaisala WXT instrument which measures temperature, moisture, wind, precipitation, pressure
    • Serial --> USB device connects to computer
    • Python script uses Pyserial to interface, writing 10Hz data to a file
    • Run this in the background - need to check to make sure this is still running, resubmitting the script if neccessary

Data Ingest (Flow Use Case #2)

  • Once the raw data is collected, we need to clean the data (called "ingest")
    • Standard units
    • Aggregate into daily files
    • Fix times (where neccessary)
    • Add standard file naming + add helpful metadata
    • Transfer to Argonne National Lab (ANL) Archive
  • Frequency - ~1 per day
  • Example: Ceilometer data
    • Need to transfer from some instrument computer to ANL
    • Corections for the time in UTC need to be applied
    • Calibration/dervived parameters need to be applied
    • Daily files need ot created, placed in the ANL archive

This data can be made discoverable within the CROCUS project, via Globus shared collection

Data Publication + Archiving (Flow Use Case #3)

  • Long term archiving needs to be done with ESS-Dive
  • We need to be able to:
    • Securely transfer data to ESS-Dive
    • Add in required metadata + point to existing data stores
    • Create quicklooks for our team to review before hitting "submit"
    • Automate this for several datastreams at a single push
  • Example: 1 Month of Data from 5 sites
    • Say we have 5 sites with WXT sensors
    • We need to review the calibration, ensuring the data is consistent and there are not any major gaps (if so, highlight that)
    • Securely transfer hundreds of files, making sure files are not corrupted