Json example for national data

[istvans-mn]

Simple ODIM volume example for ingest via json endpoint:

{
  "id": "",
  "version": "v4.0",
  "type": "Feature",
  "geometry": {
    "type": "Point",
    "coordinates": {
      "lat": 52.95279,
      "lon": 4.79061,
      "hei": 55.0
    }
  },
  "properties": {
    "datetime": "2025-01-08T10:17:08Z",
    "Conventions": "CF-1.8",
    "summary": "Radar data from OPERA network.",
    "license": "http//spdx.org/licenses/CC-BY-4.0(CC-BY-4.0)",
    "naming_authority": "no.met",
    "level": 2000,
    "function": "point",
    "period": "PT0S",
    "period_int": 300,
    "platform": "0-20000-0-06234",
    "content": {
      "encoding": "utf-8",
      "standard_name": "radar_linear_equivalent_reflectivity_factor_h",
      "unit": "count",
      "size": 5,
      "value": "44966"
    },
    "platform_name": "[nldhl] DenHelder",
    "elangle": 20.0,
    "nbins": 832,
    "nrays": 360,
    "product": "SCAN"
  },
  "links": [
    {
      "href": "https://my_S3_bucket_url/my_S3_bucket/2025/01/08/NL/nldhl/PVOL/[email protected]_0.8_1.2_2.0_2.8_4.5_6.0_8.0_10.0_12.0_15.0_20.0_25.0_90.0@DBZH_TH_VRADH.h5",
      "rel": "canonical",
      "type": "application/x-odim"
    }
  ]
}

Where:

• "level": 2000 ===>>> elevation = 2.0
• radar_linear_equivalent_reflectivity_factor_h ===>>> ODIM quantity = DBZH (see full mapping at radar_cf.py)
• "value": "44966" ===>>> number of valid bins (skip: nodata, undetect)
• default "filename" format:
  -- ODIM Id - Datetime @ elevations(sorted, 2 digits) @ quantities(sorted) .h5
  -- [email protected]_0.8_1.2_2.0_2.8_4.5_6.0_8.0_10.0_12.0_15.0_20.0_25.0_90.0@DBZH_TH_VRADH.h5

Full example:
T_PAGZ51_C_EHDB_20250108101504.txt

Python json msg generator:
odim2mqtt.zip

[istvans-mn]

The msg generator cannot generate message for the attached file.
The ODIM structure is the following:

/                        Group
/dataset1                Group
/dataset1/data1          Group
/dataset1/data1/data     Dataset {1728, 1984}
/how                     Group
/what                    Group
/where                   Group

Top (ODIM) What:

{"date": "20250115", "gain": 0.5, "nodata": 255, "object": "COMP", "offset": -32.0, "product": "DBZH", "source": "DMI-RADARGROUP", "time": "110501", "undetect": 0.0, "version": "0.2"}

• Cannot determine the country.
  Suggestion: "source": "DMI-RADARGROUP,CTY:613" or "DMI-RADARGROUP,CTY:613,ORG:94"
  Where: 613 is the Country Code (BUFR [ 0 01 101]) , 94 is the Originating Centre (BUFR[ 0 01 033])
• product: "DBZH" Attribute:
  -- product is one of the dataset attributes, allowed abbrevations: SCAN, PPI, CAPPI,....COMP, VP, RHI
  -- quantity identifiers: TH, DBZH, ....
  -- Suggestion: rename to the unambiguous name or/and use the standard dataset attributes.