NEAQS 2004

Meteorological summary for Gulf of Maine and northern coastal New England


Wayne M. Angevine


16 July


March 21, 2005


(From PSU synoptic summary):  Low Pressure through the day tracked NE up the St. Lawrence River Valley. Low level winds most of the period were SW 5-10 knots over land and offshore were 10 knots out of the South. Temperatures across the region were very uniform for the period with low temperatures near 17C, and highs near 25C.

Temperature Summary:


KPSM/26/17 (Pease)

44005/18/17 (Gulf of Maine Buoy)

Ozone and CO

Modest levels of CO and ozone were observed at the ship.  Ozone had a typical near-source diurnal cycle.

Figure 1:  Maximum 1-h surface ozone from EPA AIRNOW


Figure 2:  FLEXPART footprint for 0519-0619 UTC

Figure 3:  FLEXPART footprint for 1119-1219 UTC

Figure 4:  FLEXPART footprint for 1737-1806 UTC

Figure 5:  FLEXPART footprint for 2334 UTC 16 July - 0007 UTC 17 July

Ship track

Note that the ship was stationary ~10 km north of Cape Ann (42.74N 70.66W) from 0000 -1230 UTC.

Figure 6:  CO along the ship track

Figure 7:  Ozone along the ship track

Figure 8:  Wind direction along the ship track