Update Netherlands adapter to use API

[sruti]

Netherlands data is available through an API https://api.luchtmeetnet.nl/open_api. With it we can:

• get more accurate data (the current method is sometimes returning -999 when it shouldn't be)
• programmatically access station data (including coordinates, local authority data provider, and even some metadata)
• access stations reporting BC data others we may be missing

[gruijter]

thx. Already looked into it last year. Then the data interface was crappy then. Will look into it again and hope it is better.

[sruti]

Small update: confirmed with someone from luchtmeetnet that

• the measurements are averaged hourly
• the "timestamp_measured" parameter returned by the API is the start of the measurement period and we want the end, so an hour should be added (their website does this btw)

[majesticio]

This looks promising, I want to compare this to the data that we already have and check for duplicates.

[majesticio]

Going to table this for now. I made a branch called 'lambda-netherlands'. I created a duplicate detector that returned this:

    parameterMatch: 'no2 µg/m³',
    distanceToNearest: '0.4 meters',
    original: {
      location: 'Groningen-Europaweg',
      coordinates: [ 53.2178, 6.5789 ],
      value: 29.5,
      date: '2023-02-13T19:00:00.000Z'
    },
    nearest: {
      location: 'Groningen-Europaweg',
      coordinates: [ 53.217796, 6.578901 ],
      value: 30.77,
      date: '2023-02-13T19:00:00.000Z'
    }
  },
  {
    parameterMatch: 'pm25 µg/m³',
    distanceToNearest: '0.5 meters',
    original: {
      location: 'Enschede-Winkelhorst.',
      coordinates: [ 52.2345, 6.91949 ],
      value: 17.0986,
      date: '2023-02-13T19:00:00.000Z'
    },
    nearest: {
      location: 'Enschede-Winkelshorst',
      coordinates: [ 52.234504, 6.919494 ],
      value: 16,
      date: '2023-02-13T19:00:00.000Z'
    }
  }
]
there are 83 stations with possible duplicates
there are 5 stations with no duplicates

While the values are slightly different (maybe due to a time offset problem) the stations are mostly reporting the same data from the same locations so it does not really enhance our coverage of the Netherlands.