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Effects of the 2006 El Niño on tropospheric composition as revealed by data from the Tropospheric Emission Spectrometer (TES)

Listed in National Center for Atmospheric Research

The Tropospheric Emission Spectrometer (TES) is unique in providing multi-year coincident tropospheric profiles of CO, O₃ and H₂O. TES data show large differences in these gases over Indonesia and the eastern Indian Ocean in October-December 2006 relative to 2005.

Description

In 2006, O₃ was higher by 15-30 ppb (30-75%) while CO was higher by >80 ppb in October and November, and by ~25 ppb in December. These differences were caused by high fire emissions from Indonesia in 2006 associated with the lowest rainfall since 1997, reduced convection during the moderate El Niño, and reduced photochemical loss because of lower H₂O. The persistence of the O₃ difference into December is consistent with higher NOx emissions from lightning in 2006.

TES CO and O₃ enhancements in 2006 were larger than those observed during the weak El Niño of 2004.

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Atmospheric sciences 75%
Provenance · 1 source records, 8 field assertions
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National Center for Atmospheric Research3dae7f29-ec8f-444a-9a09-794aab7718d810 d agoJSON v1
FieldAssertionExtractorEvidence
concepts[field].anzsrc:group:3701enrichment · data ucar edutaxonomy-embedding@1.1.0title+keywords+description (75%)
concepts[field].local:field:earth-environmentalmapping · data ucar educonnector:data_ucar_edu@1.0.0
concepts[field].local:field:ocean-atmosphericmapping · data ucar educonnector:data_ucar_edu@1.0.0
created_datesource · data ucar educonnector:data_ucar_edu@1.0.0
descriptionsource · data ucar educonnector:data_ucar_edu@1.0.0/notes
publication_datesource · data ucar educonnector:data_ucar_edu@1.0.0
titlesource · data ucar educonnector:data_ucar_edu@1.0.0/title
updated_datesource · data ucar educonnector:data_ucar_edu@1.0.0