@article{
 title = {Sulfate and msa in the air and snow on the greenland ice-sheet},
 type = {article},
 year = {1994},
 pages = {1241-1253},
 volume = {99},
 id = {da533c91-f7c5-34a9-a856-c67d2c5ed6c7},
 created = {2014-10-08T16:28:18.000Z},
 file_attached = {false},
 profile_id = {363623ef-1990-38f1-b354-f5cdaa6548b2},
 group_id = {02267cec-5558-3876-9cfc-78d056bad5b9},
 last_modified = {2017-03-14T17:32:24.802Z},
 read = {false},
 starred = {false},
 authored = {false},
 confirmed = {true},
 hidden = {false},
 citation_key = {Jaffrezo:JGRA:1994a},
 source_type = {article},
 private_publication = {false},
 abstract = {Sulfate and methanesulfonic acid (MSA) concentrations
in aerosol, surface snow, and snowpit samples have been measured at
two sites on the Greenland Ice Sheet. Seasonal variations of the
concentrations observed for these chemical species in the
atmosphere are reproduced in the surface snow and preserved in the
snowpit sequence. The amplitude of the variations over a year are
smaller in the snow than in the air, but the ratios of the
concentrations are comparable. The seasonal variations for sulfate
are different at the altitude of the Ice Sheet compared to those
observed at sea level, with low concentrations in winter and short
episodes of elevated concentrations in spring. In contrast, the
variations in concentrations of MSA are similar to those measured
at sea level, with a first sequence of elevated concentrations in
spring and another one during summer, and a winter low resulting
from low biogenic production. The ratio MSA/sulfate clearly
indicates the influence of high-latitude sources for the summer
maximum of MSA, but the large impact of anthropogenic sulfate
precludes any conclusion for the spring maximum. The seasonal
pattern observed for these species in a snowpit sampled according
to stratigraphy indicates a deficit in the accumulation of winter
snow at the summit of the Greenland Ice Sheet, in agreement with
some direct observations. A deeper snowpit covering the years
1985-1992 indicates the consistency of the seasonal pattern for MSA
over the years, which may be linked to transport and deposition
processes.
C1 CARNEGIE MELLON UNIV,DEPT CIVIL ENGN,PITTSBURGH,PA 15213. UNIV
NEW HAMPSHIRE,INST STUDY EARTH OCEANS & SPACE,GLACIER RES
GRP,DURHAM,NH 03824.},
 bibtype = {article},
 author = {Jaffrezo, J L and Davidson, C I and Legrand, M and Dibb, J E},
 journal = {J. Geophys. Res.-Atmos.}
}

{"_id":{"_str":"5411bfbb480d3bb058002ad8"},"__v":0,"authorIDs":[],"author_short":["Jaffrezo, J., L.","Davidson, C., I.","Legrand, M.","Dibb, J., E."],"bibbaseid":"jaffrezo-davidson-legrand-dibb-sulfateandmsaintheairandsnowonthegreenlandicesheet-1994","bibdata":{"title":"Sulfate and msa in the air and snow on the greenland ice-sheet","type":"article","year":"1994","pages":"1241-1253","volume":"99","id":"da533c91-f7c5-34a9-a856-c67d2c5ed6c7","created":"2014-10-08T16:28:18.000Z","file_attached":false,"profile_id":"363623ef-1990-38f1-b354-f5cdaa6548b2","group_id":"02267cec-5558-3876-9cfc-78d056bad5b9","last_modified":"2017-03-14T17:32:24.802Z","read":false,"starred":false,"authored":false,"confirmed":"true","hidden":false,"citation_key":"Jaffrezo:JGRA:1994a","source_type":"article","private_publication":false,"abstract":"Sulfate and methanesulfonic acid (MSA) concentrations\nin aerosol, surface snow, and snowpit samples have been measured at\ntwo sites on the Greenland Ice Sheet. Seasonal variations of the\nconcentrations observed for these chemical species in the\natmosphere are reproduced in the surface snow and preserved in the\nsnowpit sequence. The amplitude of the variations over a year are\nsmaller in the snow than in the air, but the ratios of the\nconcentrations are comparable. The seasonal variations for sulfate\nare different at the altitude of the Ice Sheet compared to those\nobserved at sea level, with low concentrations in winter and short\nepisodes of elevated concentrations in spring. In contrast, the\nvariations in concentrations of MSA are similar to those measured\nat sea level, with a first sequence of elevated concentrations in\nspring and another one during summer, and a winter low resulting\nfrom low biogenic production. The ratio MSA/sulfate clearly\nindicates the influence of high-latitude sources for the summer\nmaximum of MSA, but the large impact of anthropogenic sulfate\nprecludes any conclusion for the spring maximum. The seasonal\npattern observed for these species in a snowpit sampled according\nto stratigraphy indicates a deficit in the accumulation of winter\nsnow at the summit of the Greenland Ice Sheet, in agreement with\nsome direct observations. A deeper snowpit covering the years\n1985-1992 indicates the consistency of the seasonal pattern for MSA\nover the years, which may be linked to transport and deposition\nprocesses.\nC1 CARNEGIE MELLON UNIV,DEPT CIVIL ENGN,PITTSBURGH,PA 15213. UNIV\nNEW HAMPSHIRE,INST STUDY EARTH OCEANS & SPACE,GLACIER RES\nGRP,DURHAM,NH 03824.","bibtype":"article","author":"Jaffrezo, J L and Davidson, C I and Legrand, M and Dibb, J E","journal":"J. Geophys. Res.-Atmos.","bibtex":"@article{\n title = {Sulfate and msa in the air and snow on the greenland ice-sheet},\n type = {article},\n year = {1994},\n pages = {1241-1253},\n volume = {99},\n id = {da533c91-f7c5-34a9-a856-c67d2c5ed6c7},\n created = {2014-10-08T16:28:18.000Z},\n file_attached = {false},\n profile_id = {363623ef-1990-38f1-b354-f5cdaa6548b2},\n group_id = {02267cec-5558-3876-9cfc-78d056bad5b9},\n last_modified = {2017-03-14T17:32:24.802Z},\n read = {false},\n starred = {false},\n authored = {false},\n confirmed = {true},\n hidden = {false},\n citation_key = {Jaffrezo:JGRA:1994a},\n source_type = {article},\n private_publication = {false},\n abstract = {Sulfate and methanesulfonic acid (MSA) concentrations\nin aerosol, surface snow, and snowpit samples have been measured at\ntwo sites on the Greenland Ice Sheet. Seasonal variations of the\nconcentrations observed for these chemical species in the\natmosphere are reproduced in the surface snow and preserved in the\nsnowpit sequence. The amplitude of the variations over a year are\nsmaller in the snow than in the air, but the ratios of the\nconcentrations are comparable. The seasonal variations for sulfate\nare different at the altitude of the Ice Sheet compared to those\nobserved at sea level, with low concentrations in winter and short\nepisodes of elevated concentrations in spring. In contrast, the\nvariations in concentrations of MSA are similar to those measured\nat sea level, with a first sequence of elevated concentrations in\nspring and another one during summer, and a winter low resulting\nfrom low biogenic production. The ratio MSA/sulfate clearly\nindicates the influence of high-latitude sources for the summer\nmaximum of MSA, but the large impact of anthropogenic sulfate\nprecludes any conclusion for the spring maximum. The seasonal\npattern observed for these species in a snowpit sampled according\nto stratigraphy indicates a deficit in the accumulation of winter\nsnow at the summit of the Greenland Ice Sheet, in agreement with\nsome direct observations. A deeper snowpit covering the years\n1985-1992 indicates the consistency of the seasonal pattern for MSA\nover the years, which may be linked to transport and deposition\nprocesses.\nC1 CARNEGIE MELLON UNIV,DEPT CIVIL ENGN,PITTSBURGH,PA 15213. UNIV\nNEW HAMPSHIRE,INST STUDY EARTH OCEANS & SPACE,GLACIER RES\nGRP,DURHAM,NH 03824.},\n bibtype = {article},\n author = {Jaffrezo, J L and Davidson, C I and Legrand, M and Dibb, J E},\n journal = {J. Geophys. Res.-Atmos.}\n}","author_short":["Jaffrezo, J., L.","Davidson, C., I.","Legrand, M.","Dibb, J., E."],"bibbaseid":"jaffrezo-davidson-legrand-dibb-sulfateandmsaintheairandsnowonthegreenlandicesheet-1994","role":"author","urls":{},"downloads":0},"bibtype":"article","biburl":null,"creationDate":"2014-09-11T15:28:59.350Z","downloads":0,"keywords":[],"search_terms":["sulfate","msa","air","snow","greenland","ice","sheet","jaffrezo","davidson","legrand","dibb"],"title":"Sulfate and msa in the air and snow on the greenland ice-sheet","year":1994}