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3 results for “halogen chemistry”
McMurdo Dry Valleys Halogen chemistry and isotopic composition in McMurdo lake waters and pore fluids
As part of a collaborative investigation between researchers at Rice University, Arkansas State University, University of Rochester, and Ohio State University, lakes of the McMurdo Dry Valleys were sampled at discreet depth intervals during the 2005-2006 field season.  Sample splits were subsequently analyzed for chemical and isotopic composition of both gases and dissolved  ions, as well as dissolved organic carbon. In addition, cryogenic salts were sampled in the surrounding lake shores in order to determine the salt sources. Gravity cores were also obtained and the pore waters were collected by centrifuging the wet sediment.  Presented  in this file are the dissolved halogens :chloride, bromide, and total iodine in lake waters and pore waters. The isotopic composition of I-129 and Cl-36 are also presented for these same samples, as are the molar ratios of I-129/I-127, and Cl-36/Cl-37.  Alkalinity was also determined in order to subsequently investigate the relationship between the oxidation of organic matter and the release of iodine into the lake waters.
Data from "Description and evaluation of the new UM-UKCA (vn11.0) Double Extended Stratospheric-Tropospheric (DEST vn1.0) scheme for comprehensive modelling of halogen chemistry in the stratosphere" by Bednarz et al., 2022
<p>Model output from the UM-UKCA simulations used in "Description and evaluation of the new UM-UKCA (vn11.0) Double Extended Stratospheric-Tropospheric (DEST vn1.0) scheme for comprehensive modelling of halogen chemistry in the stratosphere" by Bednarz et al. (2022), as well as plotting scripts used to make all figures.</p>
Dataset produced by MOCAGE-1D model version R1.18.1 for volcanic halogen chemistry study
<p>The file data_files_MOCAGE_R1_18_1.tar contains the files produced by MOCAGE 1D model version R1.18.1 for the study of halogen chemistry in volcanic plumes. The data corresponds to the model experiments described in the preprint (https://doi.org/10.5194/gmd-2022-180). For each experiment (stored in a separate directory), hourly files are available and include the 1D profile of the chemical variables shown in the preprint. The files are called HMGLOB05+DATETIME.nc. For the experiments using the representation of the sub-grid scale plume chemistry, an additional set of files is produced that is called HMGLOB05+DATETIME_XCEN.nc. The HMGLOB05+DATETIME.nc and HMGLOB05+DATETIME_XCEN.nc files need to be combined to get the concentrations of chemical species at the model grid resolution as shown in the preprint (see additional notes section for explanation how to combine the files).</p>
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