U.S. Air Quality

ELF/CALIPSO Trick or Treat

Clear skies prevailed over the Baltimore-Washington Metro Area on October 31st. A homogeneous boundary layer, at a height of 1km, was observed until 6:00 UTC (Nov. 1). The boundary layer became active (inhomogeneous) after this time with aloft layers reaching up to 2 km. Cloud coverage (dark red counts) was due to the cold front moving thru the Mid-Atlantic states. CALIPSO's trajectory was about 23 and 59 km east of UMBC around 7:16 and 18:20 [UTC], according to the NASA LaRC Overpass Predictor. Hourly PM 2.5 concentrations in the range of 5.3 to 16.2 ug/m3 were recorded at Maryland's Department of the Enviroment Oldtown site in Baltimore during ELF's operation.

Posted by Ruben Delgado at November 1, 2007 11:55 PM