Table 2: Isoprene and monoterpene surface concentrations (in pptv) in the marine boundary layer Comparison between observations and TM4-ECPL monthly mean model results in the corresponding 4° 6° (latitude longitude) model grid.

LocationMonthModel (pptv)Observations (pptv)Reference

Isoprene
N. Atlantic OceanJul. 20040.06 [56]
Norwegian SeaAug. 19992.4 [57]
NW Pacific OceanMay 20012.57.2–110[58]
Indian Ocean (50°S–20°S & 50°E–80°E)Dec. 20042–920–340[59]
Southern Ocean* (69°S, 39° E–45°S, 105°E)Dec. 19971.413 ( 0.1–57)[60]
Straits of Florida (24°N, 80°W)Sep. 19931275–11[61]
Hao atoll (18°S, 140°W)Jun. 19900.6 2[12]
Syowa Station (69° S, 39° E)Dec. 19970.20.1–57[60]
Southern OceanJan.-Feb. 200710.426–187*[15]

Monoterpenes
Southern OceanJan.-Feb. 2007 * [15]
Indian Ocean (50°S–20°S & 50°E–80°E)Dec. 200423 [59]

*Range of average observations for far away before the bloom and in situ bloom cases, 35° S, 20° E to 52° S, 67° W.