GAMET (ICAO)#

Required roles: AIS PIB API — Roles
Base endpoint: https://ais-pib-api.ibosoft.net.tr:2087/opmet-decoder-gamet-icao
Reference documents: ICAO Doc 10157 PANS-MET, Ed. 1 (27/11/25) · ICAO Doc 8400 PANS-ABC, Ed. 9, Amend. 33 (8/11/18)
Attribution: show ibonav.aero or "Decoded by Ibosoft" wherever decoded output is displayed
Data sources: none — decodes the message supplied in the request.
Last updated: 17 OCT 2026

About the reference documents: Related Documents and Resources

Decodes a GAMET area forecast into readable fields, one box per section, following the PANS-MET template. Optionally returns machine-readable values (parsed).

The format is that of PANS-MET Appendix 6 (Table A6-1). To get messages to decode, see GAMET.

Endpoints#

POST /opmet-decoder-gamet-icao/decode?parsed=false
Content-Type: application/json

{ "raw": "<GAMET text>" }

Parameters#

How the template is processed#

• Field names and wording come from PANS-MET Table A6-1 and its notes: output keys are the template element names (e.g. SFC VIS → "Surface visibility", SIG CLD → "Cloud", PSYS → "Pressure centres and fronts"); time ranges, areas, levels and units are written out. Abbreviations are expanded as defined in PANS-MET and PANS-ABC (Doc 8400).
• Header elements (FIR/CTA, identification, validity, meteorological office, name of the FIR/CTA) are at the top level.
• Sections: SECN I and SECN II become one box each in sections, with a header (label) and the elements of the section. Elements are present only when the section gives them; elements that can repeat are lists.
• Strict template: a value that does not follow the template is not guessed; it is listed under Undecodable elements (neighbouring groups form one entry).

For the full list of elements, see PANS-MET Table A6-1.

Response#

Example — PANS-MET Example A6-1 (shortened):

YUCC GAMET VALID 220600/221200 YUDO –
YUCC AMSWELL FIR/2 BLW FL120
SECN I
SFC WIND: 10/12 310/16MPS
SFC VIS: 06/08 N OF N51 3000M BR
…
SECN II
PSYS: 06 N5130 E01000 L 1004HPA MOV NE 25KT WKN
…

{
  "Location indicator of FIR/CTA": "YUCC",
  "Identification": "GAMET",
  "Validity period": "Valid from Day 22, 06:00 UTC to Day 22, 12:00 UTC",
  "Location indicator of MWO": "YUDO",
  "Name of the FIR/CTA": "YUCC AMSWELL FIR/2, below FL 120",
  "sections": [
    {
      "label": "Section I (Information on en-route weather phenomena hazardous to low-level flights.)",
      "label_start": 67, "label_end": 73,
      "Surface wind": "10:00 UTC to 12:00 UTC: 16 m/s from 310°T",
      "Surface visibility": "06:00 UTC to 08:00 UTC, North of N51°: 3000 m, Mist",
      "…": "…"
    },
    {
      "label": "Section II (Additional information required by low-level flights.)",
      "label_start": 291, "label_end": 298,
      "Pressure centres and fronts": "06:00 UTC: Low pressure 1004 hPa at N51°30' E10°00', Moving towards North-east at 25 kt, Weakening",
      "…": "…"
    }
  ],
  "marker_positions": [{"start": 67, "end": 73}, {"start": 291, "end": 298}],
  "positions": [{"start": 0, "end": 4}, "…"],
  "corrected_raw": "YUCC GAMET VALID 220600/221200 YUDO –\nYUCC AMSWELL FIR/2 BLW FL120\n…",
  "raw": "…",
  "parsed": {
    "utc_day": 22, "utc_time": "0600",
    "location_indicator_fir_cta": "YUCC",
    "location_indicator_met_office": "YUDO",
    "name_of_fir_cta": "YUCC AMSWELL FIR/2 BLW FL120"
  }
}

Errors#