NOx and CO were carried out at two nearby tropical coastal locations, Thumba (very close to
the sea) and the Centre for Earth Science Studies (CESS), which is 4.5 km off the Thumba
coast and with varying topography, during the annular eclipse of 15 January 2010. The
surface ozone decreased by 12 and 13 ppb (35% and 52%) over Thumba and CESS, with
the time lag of 40 min and 25 min from the maximum phase of eclipse, respectively, and at …