Boundary layer halogens in coastal antarctica

Author: vqmu

August undefined, 2024

WebA one-dimensional chemical transport model has been developed to investigate the vertical gradients of bromine and iodine compounds in the Antarctic coastal boundary layer … WebAug 1, 2007 · Boundary Layer Halogens in Coastal Antarctica DOI: 10.1126/science.1141408 Authors: Saiz-Lopez Alfonso Institute of Physical Chemistry Rocasolano Anoop Sharad Mahajan Indian Institute of Tropical...

Boundary Layer Halogens in Coastal Antarctica

WebJun 8, 2024 · The annual halogen flux from the sea-ice surface represents between 45% and 80% of the global chloro- and bromo-carbon oceanic VSL emissions. In Antarctica, … WebAtmospheric halogen chemistry is highly complex and has been a topic of intensive study over the past 3 decades (Saiz-Lopez and von Glasow, 2012; Simpson et al., 2015). A ma-jor branch of this research involves the occurrence of en-hanced concentrations of boundary-layer bromine in coastal Antarctica, which has been linked to the depletion of ... hillby

Freezing Halide Ion Solutions and the Release of Interhalogens to …

WebJun 14, 2009 · As halogen levels in the Antarctic atmosphere were probably higher during the coldest periods because of the greater extent of sea ice 10, all of the Hg 0 in the … WebOn the vertical distribution of boundary layer halogens over coastal Antarctica: implications for O3, HOx, NOx and the Hg lifetime A. Saiz-Lopez1,2, J. M. C. Plane1, A. … WebFeb 1, 2008 · Antarctic Regions On the vertical distribution of boundary layer halogens over coastal Antarctica: Implications for O3, HOx, NOx and the Hg lifetime February 2008 Atmospheric Chemistry and... hillburn new york

Boundary Layer Halogens in Coastal Antarctica - NASA/ADS

Surface ozone characterization at Larsemann Hills and Maitri, Antarctica

Weblarge ﬂuxes of iodine precursors into the boundary layer are required to account for the observed levels of IO. The mech-anisms which cause these emissions are unknown. … WebFeb 16, 2010 · In the polar tropospheric boundary layer, reactive halogen species (RHS) are responsible for ozone depletion as well as the oxidation of elemental mercury and dimethyl sulphide. After polar sunrise, air … hillbury houseWebA one-dimensional chemical transport model has been developed to investigate the vertical gradients of bromine and iodine compounds in the Antarctic coastal... DOAJ is a unique … hillbury hotel aburi

"WebNov 28, 2013 · 1 Introduction [2] During the spring, ozone concentrations in the coastal Antarctic boundary layer dramatically decrease for periods ranging from hours to weeks [Jones et al., 2006].Observed in both polar regions, these ozone depletion events (ODEs) are thought to be a naturally occurring phenomenon and the result of catalytic reactions … " - Boundary layer halogens in coastal antarctica

Boundary layer halogens in coastal antarctica

WebJul 2, 2007 · A one-dimensional chemical transport model has been developed to investigate the vertical gradients of bromine and iodine compounds in the Antarctic coastal boundary layer (BL). The model has been applied to interpret recent year-round observations of iodine and bromine monoxides (IO and BrO) at Halley Station, Antarctica. The model requires … WebApr 15, 2024 · Episodes of high boundary layer ozone in the Antarctica region has been found in some cases to be associated with stratospheric intrusion (Ganguly, 2013), whereas in the other cases associated with photochemical production and/or transportation (Legrand et al., 2009, Oltmans et al., 2008, Helmig et al., 2007).

Did you know?

WebAug 1, 2007 · Boundary Layer Halogens in Coastal Antarctica DOI: 10.1126/science.1141408 Authors: Saiz-Lopez Alfonso Institute of Physical Chemistry …

WebJun 14, 2009 · On the basis of the Dome C boundary layer temperature ... Saiz-Lopez, A. et al. Boundary layer halogens in coastal Antarctica. Science 317, 348–351 (2007). Article Google Scholar WebJun 8, 2024 · Model results are validated against polar boundary layer measurements of ClO, BrO, and IO, and satellite BrO and IO columns. This validation includes satellite observations of IO over inner Antarctica for which an iodine “leapfrog” mechanism is proposed to transport active iodine from coastal source regions to the interior of the …

WebJul 20, 2007 · Halogens influence the oxidizing capacity of Earth's troposphere, and iodine oxides form ultrafine aerosols, which may have an impact on climate. We report year-round measurements of boundary layer iodine oxide and bromine oxide at the near-coastal … WebHalogens influence the oxidizing capacity of Earth’s troposphere, and iodine oxides form ultrafine aerosols, which may have an impact on climate. We report year-round …

Webthe Antarctic boundary layer A. Saiz-Lopez et al. Title Page Abstract Introduction Conclusions References Tables Figures J I J I ... layer halogens over coastal Antarctica: implications for O3, HOx, NOx and the Hg lifetime A. Saiz-Lopez1,2, J. M. C. Plane1, A. S. Mahajan1, P. S. Anderson3,

WebSep 10, 2012 · Atmospheric Chemistry and Physics 2005 Abstract. The role of halogens in both the marine boundary layer and the stratosphere has long been recognized, while their role in the free troposphere is often not considered in global chemical… 28 PDF Impact of reactive bromine chemistry in the troposphere smart choice insurance canadaWebJul 1, 2007 · Halogens influence the oxidizing capacity of Earth’s troposphere, and iodine oxides form ultrafine aerosols, which may have an impact on climate. We report year … hillcar \\u0026 fletcherWebHalogens influence the oxidizing capacity of Earth's troposphere, and iodine oxides form ultrafine aerosols, which may have an impact on climate. We report year-round … hillcap drive insWebHalogens influence the oxidizing capacity of Earth’s troposphere, and iodine oxides form ultrafine aerosols, which may have an impact on climate. We report year-round … hillbury house nursery hoveWebSeasonal variation of peroxyacetylnitrate (PAN) in coastal Antarctica measured with a new instrument for the detection of sub-part per trillion mixing ratios of PAN G. P. Mills, W. T. Sturges, R. A. Salmon, S. J.-B. Bauguitte, K. A. Read, and B. J. Bandy hillbury islandWebMar 22, 2006 · On the vertical distribution of boundary layer halogens over coastal Antarctica: implications for O 3 , HO x , NO x and the Hg lifetime. Atmospheric Chemistry and Physics Discussions 2007, 7 (4) , 9385-9417. DOI: 10.5194/acpd-7-9385-2007. hillbuster carsWebA. Saiz-Lopez et al.: Halogen chemistry in the Antarctic boundary layer 889 radicals oxidize NO to NO2, thus increasing the NOx ratio. In contrast, they react with HO2 to yield HOX, which then photolyses efﬁciently to OH (particularly in the case of HOI), thus decreasing the HOx ratio (Bloss et al., 2005). A detailed hillbury park homes for sale