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

Jennifer A. Logan; Inna Megretskaia; Ray Nassar; Lee T. Murray; Lin Zhang; Kevin W. Bowman; Helen M. Worden; Ming Luo

doi:10.1029/2007GL031698

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

Jennifer A. Logan, Inna Megretskaia, Ray Nassar, Lee T. Murray, Lin Zhang, Kevin W. Bowman, Helen M. Worden, Ming Luo

Atmospheric Chemistry Observations & Modeling Administrative Office

Research output: Contribution to journal › Article › peer-review

105 Scopus citations

Abstract

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

Original language	English
Article number	L03816
Journal	Geophysical Research Letters
Volume	35
Issue number	3
DOIs	https://doi.org/10.1029/2007GL031698
State	Published - Feb 16 2008

Access to Document

10.1029/2007GL031698

Cite this

@article{65663e2375c745ac997e3da70a482ba9,

title = "Effects of the 2006 El Ni{\~n}o on tropospheric composition as revealed by data from the Tropospheric Emission Spectrometer (TES)",

abstract = "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. 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 Ni{\~n}o, 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 Ni{\~n}o of 2004.",

author = "Logan, \{Jennifer A.\} and Inna Megretskaia and Ray Nassar and Murray, \{Lee T.\} and Lin Zhang and Bowman, \{Kevin W.\} and Worden, \{Helen M.\} and Ming Luo",

year = "2008",

month = feb,

day = "16",

doi = "10.1029/2007GL031698",

language = "English",

volume = "35",

journal = "Geophysical Research Letters",

issn = "0094-8276",

publisher = "John Wiley and Sons Inc.",

number = "3",

}

TY - JOUR

T1 - Effects of the 2006 El Niño on tropospheric composition as revealed by data from the Tropospheric Emission Spectrometer (TES)

AU - Logan, Jennifer A.

AU - Megretskaia, Inna

AU - Nassar, Ray

AU - Murray, Lee T.

AU - Zhang, Lin

AU - Bowman, Kevin W.

AU - Worden, Helen M.

AU - Luo, Ming

PY - 2008/2/16

Y1 - 2008/2/16

N2 - 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. 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.

AB - 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. 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.

UR - https://www.scopus.com/pages/publications/41849101045

U2 - 10.1029/2007GL031698

DO - 10.1029/2007GL031698

M3 - Article

AN - SCOPUS:41849101045

SN - 0094-8276

VL - 35

JO - Geophysical Research Letters

JF - Geophysical Research Letters

IS - 3

M1 - L03816

ER -

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

Abstract

Access to Document

Other files and links

Fingerprint

Cite this