Premium
Nitrous oxide emissions from the Arabian Sea
Author(s) -
Bange Hermann W.,
Rapsomanikis Spyridon,
Andreae Meinrat O.
Publication year - 1996
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/96gl03072
Subject(s) - upwelling , oceanography , monsoon , peninsula , geology , cruise , climatology , nitrous oxide , environmental science , geography , chemistry , organic chemistry , archaeology
Dissolved and atmospheric nitrous oxide (N 2 O) were measured on the legs 3 and 5 of the R/V Meteor cruise 32 in the Arabian Sea. A cruise track along 65°E was followed during both the intermonsoon (May 1995) and the southwest (SW) monsoon (July/August 1995) periods. During the second leg the coastal and open ocean upwelling regions off the Arabian Peninsula were also investigated. Mean N 2 O saturations for the oceanic regions of the Arabian Sea were in the range of 99–103% during the intermonsoon and 103–230% during the SW monsoon. Computed annual emissions of 0.8–1.5 Tg N 2 O for the Arabian Sea are considerably higher than previous estimates, indicating that the role of upwelling regions, such as the Arabian Sea, may be more important than previously assumed in global budgets of oceanic N 2 O emissions.