i
SO2 Observations and Sources in the Western Pacific Tropical Tropopause Region
-
Published Date:
2018
Source:Journal of Geophysical Research-Atmospheres, 123(23), 13549-13559.
- File Format:
- RIS
Details:
-
Personal Author:
-
Description:Sulfur dioxide (SO2) is one of the primary source gases for aerosols in the atmosphere. Even at low concentrations, its presence in the upper troposphere and lower stratosphere (UT/LS) provides an important source for aerosol nucleation and growth, and SO2 has been postulated to be important for the stratospheric sulfur budget. To understand aerosol nucleation and global radiative effects, it is therefore important to quantify how much SO2 emitted from biogenic and anthropogenic processes at the surface is transported into the UT/LS. Much of the potential transport is expected to occur in regions of significant deep convection such as the western Pacific warm pool. Here we use measurements from the National Aeronautics and Space Administration (NASA) WB-57F Pacific Oxidants Sulfur Ice and DehydratiON (POSIDON) mission that was based in Guam in 2016 to examine the distribution and sources of SO2 in the western Pacific UT/LS region. During POSIDON, a few events related to volcanic emissions as well as transport by tropical cyclones were observed that brought up to 86pptv of SO2 above 14-km altitude. Overall however, the measurements corroborate our earlier findings that SO2 near the tropical tropopause is typically quite low (similar to 5pptv) and globally the transport of SO2 into the stratosphere is likely a minor source of stratospheric aerosols.
-
Document Type:
-
Main Document Checksum:urn:sha256:6a32ce36101824bcf00b281797069040ca0b17b97b62283eb9a401025f4e3e24
- File Type:
-
Supporting Files:No Additional Files
Related Documents:
-
-
Personal Author:Raczka, B. ; Biraud, S. C. ; ...Published Date:2017Source:Journal of Geophysical Research-Biogeosciences, 122(8), 1969-1987.Description:The seasonal pattern of the carbon isotope content (delta C-13) of atmospheric CO2 depends on local and nonlocal land-atmosphere exchange and atmosphe...
Personal Author:Dieng, D. ; Laux, P. ; ...Published Date:2018Source:Journal of Geophysical Research-Atmospheres, 123(15), 7950-7973.Description:In this study, we analyze a set of agroclimatological indices across West Africa and assess their projected changes for the future. We apply the regio...
Personal Author:Kenagy, H. S. ; Sparks, T. L. ; ...Published Date:2018Source:Journal of Geophysical Research-Atmospheres, 123(17), 9813-9827.Description:Although urban NOx lifetimes have been examined extensively during summertime conditions, wintertime NOx chemistry has been comparatively less studied...
Personal Author:Kim, J. ; Johnson, L. E. ; ...Published Date:2018Source:Water, 10(7), 21.Description:Soil moisture retention (SMR) capacity plays a key role in estimating the direct runoff when a multi-pulse storm event occurs. It is very important to...
Personal Author:Fairall, C. W. ; Matrosov, S. Y. ; ...Published Date:2018Source:Journal of Atmospheric and Oceanic Technology, 35(3), 593-608.Description:The NOAA W-band radar was deployed on a P-3 aircraft during a study of storm fronts off the U.S. West Coast in 2015 in the second CalWater (CalWater-2...
Personal Author:Mahoney, K. ; Swales, D. ; ...Published Date:2018Source:Journal of Climate, 31(16), 6281-6297.Description:Atmospheric rivers (ARs) are well-known producers of precipitation along the U.S. West Coast. Depending on their intensity, orientation, and location ...
Personal Author:Byju, P. ; Dommenget, D. ; ...Published Date:2018Source:Geophysical Research Letters, 45(15), 7683-7691.Description:Sea surface temperature anomalies (SSTA) in portions of the extratropics are known to recur from one winter to the next without persisting through the...
Personal Author:Richardson, K. ; Asmutis-Silvia, R. ; ...Published Date:2019Source:Marine Pollution Bulletin, 138, 222-229.Description:Abandoned, lost or discarded fishing gear (ALDFG) comprises a significant amount of global marine debris, with diverse impacts to marine environments,...
Personal Author:Chakraborty, A. ; Ervens, B. ; ...Published Date:2016Source:Journal of Geophysical Research-Atmospheres, 121(8), 4317-4332.Description:Size-resolved fog water samples were collected in two consecutive winters at Kanpur, a heavily polluted urban area of India. Samples were analyzed by ...
Personal Author:Heiblum, R. H. ; Altaratz, O. ; ...Published Date:2016Source:Journal of Geophysical Research-Atmospheres, 121(11), 6336-6355.Description:We study the evolution of warm convective cloud fields using large eddy simulations of continental and trade cumulus. Individual clouds are tracked a ...
Personal Author:Hartery, S. ; Commane, R. ; ...Published Date:2018Source:Atmospheric Chemistry and Physics, 18(1), 185-202.Description:Methane (CH4) is the second most important greenhouse gas but its emissions from northern regions are still poorly constrained. In this study, we anal...
Personal Author:Jordan, C. E. ; Pszenny, A. A. P. ; ...Published Date:2015Source:Journal of Geophysical Research-Atmospheres, 120(2), 678-694.Description:The Nitrogen, Aerosol Composition, and Halogens on a Tall Tower campaign (February-March 2011) near Boulder, Colorado, investigated nighttime ClNO2 pr...
Personal Author:Membrive, O. ; Crevoisier, C. ; ...Published Date:2017Source:Atmospheric Measurement Techniques, 10(6), 2163-2181.Description:An original and innovative sampling system called AirCore was presented by NOAA in 2010 (Karion et al., 2010). It consists of a long (> 100 m) and nar...
Personal Author:Dias, J. ; Gehne, M. ; ...Published Date:2018Source:Monthly Weather Review, 146(6), 1763-1784.Description:Despite decades of research on the role of moist convective processes in large-scale tropical dynamics, tropical forecast skill in operational models ...
Personal Author:Creamean, J. M. ; Maahn, M. ; ...Published Date:2018Source:Atmospheric Chemistry and Physics, 18(2), 555-570.Description:The Arctic is warming at an alarming rate, yet the processes that contribute to the enhanced warming are not well understood. Arctic aerosols have bee...
Personal Author:Seviour, W. J. M. ; Davis, S. M. ; ...Published Date:2018Source:Geophysical Research Letters, 45(2), 1106-1113.Description:Climate models predict that the Hadley circulation will expand poleward in a warmer climate, a trend which may cause significant changes in global pre...
Personal Author:Buchholz, R. R. ; Hammerling, D. ; ...Published Date:2018Source:Journal of Geophysical Research-Atmospheres, 123(17), 9786-9800.Description:In the Southern Hemisphere and tropics, the main contribution to carbon monoxide (CO) variability is from fire emissions, which are connected to clima...
Personal Author:Fay, A. R. ; Lovenduski, N. S. ; ...Published Date:2018Source:Biogeosciences, 15(12), 3841-3855.Description:The Southern Ocean is highly under-sampled for the purpose of assessing total carbon uptake and its variability. Since this region dominates the mean ...
Personal Author:England, M. ; Polvani, L. ; ...Published Date:2018Source:Journal of Climate, 31(16), 6353-6370.Description:Models project that Antarctic sea ice area will decline considerably by the end of this century, but the consequences remain largely unexplored. Here,...
Personal Author:Marvel, K. ; Pincus, R. ; ...Published Date:2018Source:Geophysical Research Letters, 45(3), 1595-1601.Description:An emerging literature suggests that estimates of equilibrium climate sensitivity (ECS) derived from recent observations and energy balance models are...
-
You May Also Like:
-
Personal Author:Kremser, S. ; Thomason, L. W. ; ...Published Date:2016Source:Reviews of Geophysics, 54(2), 278-335.Description:Interest in stratospheric aerosol and its role in climate have increased over the last decade due to the observed increase in stratospheric aerosol si...