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  • Other Sources  (4)
  • American Geophysical Union (AGU)
  • American Meteorological Society (AMS)
  • Annual Reviews
  • BioMed Central
  • 2005-2009  (3)
  • 1980-1984  (1)
  • 2008  (3)
  • 1980  (1)
  • 1
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    A significant upper limit for the rate of formation, of OCS from the reaction of OH with CS2 (1980)
    American Geophysical Union (AGU)
    In:  Geophysical Research Letters, 7 (10). pp. 797-800.
    Details
    Publication Date: 2020-07-30
    Description: The rate of reaction of OH with CS2 to form OCS by reaction (1) has been measured through observation of O14CS following 254 nm equation image photolysis of mixtures of H2O2 with 14CS2. The OH concentrations have been monitored through simultaneous measurement in the same cell of either (a) the oxidation of CO to CO2, or (b) the removal of a hydrocarbon such as C3H8 or iso-C4H10. The upper limit for the formation of OCS based on (a) corresponds to a rate constant k1 〈 0.3 × 10−14 cm³ molecule−1 sec−1. Other chemical reactions in the system have led to the formation of both 14CO and 14CO2, indicating the existence of a complex combination of reactions such that the observed O14CS need not have been formed by (1). The rate of reaction (1) is sufficiently slow that it is neither an important atmospheric sink for CS2 nor an important source for atmospheric OCS. The reaction of OH with OCS has not been measured in these experiments, but by analogy with k1 it is probably not an important atmospheric sink for OCS nor an important source of SO2.
    Type: Article , PeerReviewed
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  • 2
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    Mortality selection during the 2003 European heat wave in three-spined sticklebacks: effects of parasites and MHC genotype (2008)
    BioMed Central
    In:  BMC Evolutionary Biology, 8 .
    Details
    Publication Date: 2019-01-21
    Type: Article , PeerReviewed
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  • 3
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    DMS air/sea flux and gas transfer coefficients from the North Atlantic summertime coccolithophore bloom (2008)
    American Geophysical Union (AGU)
    In:  Geophysical Research Letters, 35 (L23812).
    Details
    Publication Date: 2020-07-30
    Description: Dimethylsulfide (DMS) atmospheric and oceanic concentrations and eddy covariance air/sea fluxes were measured over the N. Atlantic Ocean during July 2007 from Iceland to Woods Hole, MA, USA. Seawater DMS levels north of 55 degrees N ranged from 3 to 17 nM, with variability related to the satellite-derived distributions of coccoliths and to a lesser extent, chlorophyll. For the most intense bloom region southwest of Iceland, DMS air/sea fluxes were as high as 300 mu mol m(-2) d(-1), larger than current model estimates. The observations imply that gas exchange coefficients in this region are significantly greater than those estimated using most gas transfer parameterizations. South of 55 degrees N, DMS levels were lower and the gas transfer coefficients were similar to those observed in other regions of the ocean. The data suggest that DMS emissions from the bloom region may be significantly larger than current estimates. The anomalous gas exchange coefficients likely reflect strong near-surface, water column DMS gradients influenced by physical and biological processes
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  • 4
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    Mass balance of the Greenland ice sheet from 1958 to 2007 (2008)
    American Geophysical Union (AGU)
    In:  Geophysical Research Letters, 35 (20). L20502.
    Details
    Publication Date: 2020-07-30
    Description: We combine estimates of the surface mass balance, SMB, of the Greenland ice sheet for years 1958 to 2007 with measurements of the temporal variability in ice discharge, D, to deduce the total ice sheet mass balance. During that time period, we find a robust correlation (R2 = 0.83) between anomalies in SMB and in D, which we use to reconstruct a continuous series of total ice sheet mass balance. We find that the ice sheet was losing 110 ± 70 Gt/yr in the 1960s, 30 ± 50 Gt/yr or near balance in the 1970s–1980s, and 97 ± 47 Gt/yr in 1996 increasing rapidly to 267 ± 38 Gt/yr in 2007. Multi‐year variations in ice discharge, themselves related to variations in SMB, cause 60 ± 20% more variation in total mass balance than SMB, and therefore dominate the ice sheet mass budget.
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