NOAA ESRL PSD rean20thcent V2 six-hourly monolevel_sprd sfc
Resolution: 2x2; Longitude: global; Latitude: global; Time: [0000 1 Jan 1871,1800 31 Dec 2008]
6-hourly CAPE Spread
(J/kg) [ lon lat time ]
6-hourly CIN Spread
(J/kg) [ lon lat time ]
6-hourly Pressure Spread at Surface
(Pa) [ lon lat time ]