GeoJSON Service Help

Graphical AIRMETs

Location: /gis/scripts/GairmetJSON.php

This script will create GeoJSON output using data from the ADDS database. The latest set of US Graphical AIRMETs are returned. Here is sample output:

{ "type": "FeatureCollection",
    "features": [
    { "type": "Feature",
	"properties": {
	    "product": "TANGO",
	    "hazard": "TURB-HI",
	    "severity": "MOD",
	    "top": "340",
	    "base": "130",
	    "validTime": "2013-10-25T21:00:00Z"
	},
	"geometry": {
	    "type": "Polygon",
	    "coordinates": [
		[[-66.87,45.32],[-67.05,38.91],[-72.45,37.12],[-75.77,36.53],
	    [-74.76,39.04],[-70.79,42.42],[-66.87,45.32] ] ]
	}
    }]}

The properties output from the script are:

  • product - SIERRA, TANGO, ZULU
  • hazard - TURB-HI, TURB-LO, ICE, IFR, MT_OBSC, SFC_WIND, LLWS, FZLVL
  • severity - integer severity value (typically 1 or 2)
  • base - Lowest level G-AIRMET is valid in 100s feet
  • top - Highest level G-AIRMET is valid in 100s feet
  • validTime - ISO 8601 formatted date and time when G-AIRMET is valid
  • due_to - Additional information for advisory

The script can be passed parameters via command line or through CGI REQUEST. The parameters to the script include:

  • type=type - Specifies the type of AIRMET to return. Possible values are: turb-hi, turb-lo, llws, sfc-wind, icing, ifr, mtn, fzlvl. The default is all turb-hi.
  • top=### - Specifies top altitude in 100s feet for returned AIREPs/PIREPs. The default is no top.
  • bottom=### - Specifies bottom altitude in 100s feet for returned AIREPs/PIREPs. The default is no top.
  • fore=# - This sets the forecast time in hours. Valid times are 0, 3, 6, 9 and 12. Since these are issued every 6 hours, the 0 and 3 hour forecasts might be in the past. The default is 0.
  • jsonp=callback - This sets the callback function to be used in a JSONP call. This is just when the script is called on another server. The default is null which outputs straight JSON.

Page loaded:  23:57 UTC  |   04:57 PM Pacific  |   05:57 PM Mountain  |   06:57 PM Central  |   07:57 PM Eastern

 

ADVISORIES

FORECASTS

FORECASTS

OBSERVATIONS

USER TOOLS

ABOUT US