// Synop pressure codes (ppcode@body) :

SET $psealev  = 0;      // press@body is SEA LEVEL PRESSURE
SET $pstalev  = 1;	//      "        STATION LEVEL PRESSURE
SET $g850hpa  = 2;	//      "	 850MB GEOPOTENTIAL
SET $g700hpa  = 3;	//      "	 700MB GEOPOTENTIAL
SET $p500gpm  = 4;	//      "	 500GPM PRESSURE
SET $p1000gpm = 5;	//      "	 1000GPM PRESSURE
SET $p2000gpm = 6;	//      "	 2000GPM PRESSURE
SET $p3000gpm = 7;	//      "	 3000GPM PRESSURE
SET $p4000gpm = 8;	//      "	 4000GPM PRESSURE
SET $g900hpa  = 9;	//      "	 900MB GEOPOTENTIAL
SET $g1000hpa = 10;	//      "	 1000MB GEOPOTENTIAL
SET $g500hpa  = 11;	//      "	 500MB GEOPOTENTIAL
SET $g925hpa  = 12;	//      "	 925MB GEOPOTENTIAL
