...
For service providers it is import to know they will always get parameter/quantity eq '<parameterId>' defined and optionally and parameter/parameter eq '<qualifierId>'. There is no direct need to understand the meaning of FEWS terminology external parameter id and external qualifier id. The service provider can let the data determine what needs to be filled in for it. It will be the task of administers of the FEWS system to make the external parameter id and external qualifier id match with the data.
Example repsonse:
{code:JSONjson}
{
"@odata.context": "v3/observations/$metadata#Observations",
"values": [
{
"id": "obs_20240320_pb33fp7142",
"phenomenonTime": {
"beginPosition": "2024-03-20T00:00:00Z",
"endPosition": "2024-03-20T23:59:59Z"
},
"resultTime": "2024-03-21T00:05:00Z",
"parameter": {
"procedure": "pb33fp7142",
"sensor": "DIVER_001",
"compartment": "BW",
"quantity": "DEBIET"
},
"metadata": {
"wellProperties": {
"surfaceLevel": 2.45,
"wellDepth": 15.0,
"filterTop": -12.0,
"filterBottom": -13.0,
"tubeType": "HDPE",
"tubeDiameter": 0.032
}
},
"featureOfInterest": {
"type": "Feature",
"id": "GWLICHAAM_ZAND_MS_01",
"geometry": {
"type": "Polygon",
"coordinates": [[
[5.123, 52.345],
[5.234, 52.345],
[5.234, 52.456],
[5.123, 52.456],
[5.123, 52.345]
]]
},
"properties": {
"name": "Zand Maas - Diep grondwater",
"code": "NLGW0006",
"type": "GroundwaterBody",
"formation": "Formatie van Tegelen",
"aquiferType": "Confined",
"waterAuthority": "Provincie Noord-Brabant"
}
},
"result": {
"type": "Coverage",
"domain": {
"type": "Domain",
"axes": {
"t": { "values": [
"2024-03-20T00:00:00Z",
"2024-03-20T01:00:00Z",
"2024-03-20T02:00:00Z",
"2024-03-20T03:00:00Z",
"2024-03-20T04:00:00Z",
"2024-03-20T05:00:00Z",
"2024-03-20T06:00:00Z",
"2024-03-20T07:00:00Z",
"2024-03-20T08:00:00Z",
"2024-03-20T09:00:00Z",
"2024-03-20T10:00:00Z",
"2024-03-20T11:00:00Z",
"2024-03-20T12:00:00Z",
"2024-03-20T13:00:00Z",
"2024-03-20T14:00:00Z",
"2024-03-20T15:00:00Z",
"2024-03-20T16:00:00Z",
"2024-03-20T17:00:00Z",
"2024-03-20T18:00:00Z",
"2024-03-20T19:00:00Z",
"2024-03-20T20:00:00Z",
"2024-03-20T21:00:00Z",
"2024-03-20T22:00:00Z",
"2024-03-20T23:00:00Z"
] }
}
},
"ranges": {
"groundwaterLevel": {
"type": "NdArray",
"dataType": "float",
"values": [
-2.35, -2.36, -2.36, -2.37, -2.37, -2.38,
-2.38, -2.39, -2.39, -2.40, -2.40, -2.41,
-2.41, -2.42, -2.42, -2.41, -2.41, -2.40,
-2.40, -2.39, -2.38, -2.37, -2.36, -2.35
],
"unit": "m",
"referenceLevel": "NAP",
"observedProperty": {
"id": "grondwaterstand",
"definition": "http://vocab.example.org/parameters/grondwaterstand"
}
},
"quality": {
"type": "NdArray",
"dataType": "string",
"values": [
"VALID", "VALID", "VALID", "VALID", "VALID", "VALID",
"VALID", "VALID", "VALID", "VALID", "VALID", "VALID",
"VALID", "VALID", "VALID", "VALID", "VALID", "VALID",
"VALID", "VALID", "VALID", "VALID", "VALID", "VALID"
]
}
},
"referenceSystem": {
"type": "Link",
"href": "http://www.opengis.net/def/crs/EPSG/0/4326"
}
}
}
]
}
...