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Author Zhang K, Feichter J, Kazil J, Wan H, Zhuo W, Griffiths A D, Sartorius H, Zahorowski W, Ramonet M, Schmidt M, Yver C, Neubert R E M, Brunke E-G,
Title Radon activity in the lower troposphere and its impact on ionization rate: a global estimate using different radon emissions Type Journal Article
Year 2011 Publication Atmos. Chem. Phys. Abbreviated Journal
Volume 11 Issue 15 Pages 7817-7838
Keywords
Abstract
Programme 416
Campaign
Address
Corporate Author Thesis
Publisher (down) Copernicus Publications Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1680-7324 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 3562
Permanent link to this record
 
 
Author Landais A, Dreyfus G, Capron E, Pol K, Loutre M F, Raynaud D, Lipenkov V Y, Arnaud L, Masson-Delmotte V, Paillard D, Jouzel J, Leuenberger M,
Title Towards orbital dating of the EPICA Dome C ice core using dO2/N2 Type Journal Article
Year 2011 Publication Clim. Past Discuss. Abbreviated Journal 1814-9324
Volume 7 Issue 3 Pages 2217-2259
Keywords
Abstract
Programme 902;1013
Campaign
Address
Corporate Author Thesis Bachelor's thesis
Publisher (down) Copernicus Publications Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1814-9359 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 3589
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Author France J L, King M D, Frey M M, Erbland J, Picard G, MacArthur A, Savarino J,
Title Snow optical properties at Dome C, Antarctica implications for snow emissions and snow chemistry of reactive nitrogen Type Journal Article
Year 2011 Publication Atmos. Chem. Phys. Discuss. Abbreviated Journal
Volume 11 Issue 4 Pages 11959-11993
Keywords
Abstract
Programme 1013
Campaign
Address
Corporate Author Thesis
Publisher (down) Copernicus Publications Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1680-7375 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 3590
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Author Williams G D, Hindell M, Houssais M-N, Tamura T, Field I C,
Title Upper ocean stratification and sea ice growth rates during the summer-fall transition, as revealed by Elephant seal foraging in the Adélie Depression, East Antarctica Type Journal Article
Year 2011 Publication Ocean Sci. Abbreviated Journal 1812-0784
Volume 7 Issue 2 Pages 185-202
Keywords
Abstract
Programme 452
Campaign
Address
Corporate Author Thesis
Publisher (down) Copernicus Publications Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1812-0792 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 3603
Permanent link to this record
 
 
Author Yver C, Pison I, Fortems-Cheiney A, Schmidt M, Bousquet P, Ramonet M, Jordan A, Søvde A, Engel A, Fisher R, Lowry D, Nisbet E, Levin I, Hammer S, Necki J, Bartyzel J, Reimann S, Vollmer M K, Steinbacher M, Aalto T, Maione M, Arduini I, O'Doherty S, Grant A, Sturges W, Lunder C R, Privalov V, Paramonova N,
Title A new estimation of the recent tropospheric molecular hydrogen budget using atmospheric observations and variational inversion Type Journal Article
Year 2010 Publication Atmos. Chem. Phys. Discuss. Abbreviated Journal 1680-7316
Volume 10 Issue 11 Pages 28963-29005
Keywords
Abstract
Programme 416
Campaign
Address
Corporate Author Thesis
Publisher (down) Copernicus Publications Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1680-7375 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 3800
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Author Bousquet P, Ringeval B, Pison I, Dlugokencky E J, Brunke E-G, Carouge C, Chevallier F, Fortems-Cheiney A, Frankenberg C, Hauglustaine D A, Krummel P B, Langenfelds R L, Ramonet M, Schmidt M, Steele L P, Szopa S, Yver C, Viovy N, Ciais P,
Title Source attribution of the changes in atmospheric methane for 2006-2008 Type Journal Article
Year 2011 Publication Atmos. Chem. Phys. Abbreviated Journal 1680-7316
Volume 11 Issue 8 Pages 3689-3700
Keywords
Abstract
Programme 416
Campaign
Address
Corporate Author Thesis
Publisher (down) Copernicus Publications Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1680-7324 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 3802
Permanent link to this record
 
 
Author Barats A, Amouroux D, Chauvaud L, Pécheyran C, Lorrain A, Thébault J, Church T M, Donard O F X,
Title High frequency Barium profiles in shells of the Great Scallop Pecten maximus: a methodical long-term and multi-site survey in Western Europe Type Journal Article
Year 2009 Publication Biogeosciences Abbreviated Journal
Volume 6 Issue 2 Pages 157-170
Keywords
Abstract
Programme 1090
Campaign
Address
Corporate Author Thesis Bachelor's thesis
Publisher (down) Copernicus Publications Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1726-4189 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 3
Permanent link to this record
 
 
Author Batenburg A M, Walter S, Pieterse G, Levin I, Schmidt M, Jordan A, Hammer S, Yver C, Röckmann T,
Title Temporal and spatial variability of the stable isotopic composition of atmospheric molecular hydrogen: observations at six EUROHYDROS stations Type Journal Article
Year 2011 Publication Atmos. Chem. Phys. Abbreviated Journal
Volume 11 Issue 14 Pages 6985-6999
Keywords
Abstract Despite the potential of isotope measurements to improve our understanding of the global atmospheric molecular hydrogen (H2) cycle, few H2 isotope data have been published so far. Now, within the EUROpean network for atmospheric HYDRogen Observations and Studies project (EUROHYDROS), weekly to monthly air samples from six locations in a global sampling network have been analysed for H2 mixing ratio (m(H2)) and the stable isotopic composition of the H2 (δ(D,H2), hereafter referred to as δD). The time series thus obtained now cover one to five years for all stations. This is the largest set of ground station observations of δD so far. Annual average δD values are higher at the Southern Hemisphere (SH) than at the Northern Hemisphere (NH) stations; the maximum is observed at Neumayer (Antarctica), and the minimum at the non-arctic NH stations. The maximum seasonal differences in δD range from ≈18 ‰ at Neumayer to ≈45 ‰ at Schauinsland (Southern Germany); in general, seasonal variability is largest at the NH stations. The timing of minima and maxima differs per station as well. In Alert (Arctic Canada), the variations in δD and m(H2) can be approximated as simple harmonic functions with a ≈5-month relative phase shift. This out-of-phase seasonal behaviour of δD and m(H2) can also be detected, but delayed and with a ≈6-month relative phase shift, at Mace Head and Cape Verde. However, no seasonal δD cycle could be observed at Schauinsland, which likely reflects the larger influence of local sources and sinks at this continental station. At the two SH stations, no seasonal cycle could be detected in the δD data. If it is assumed that the sink processes are the main drivers of the observed seasonality in m(H2) and δD on the NH, the relative seasonal variations can be used to estimate the relative sink strength of the two major sinks, deposition to soils and atmospheric oxidation by the hydroxyl (OH) radical. For the NH coastal and marine stations this analysis suggests that the relative contribution of soil uptake to the total annual H2 removal increases with latitude.
Programme 416
Campaign
Address
Corporate Author Thesis Bachelor's thesis
Publisher (down) Copernicus Publications Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1680-7324 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 1656
Permanent link to this record
 
 
Author Bruhwiler L M P, Michalak A M, Tans P P
Title Spatial and temporal resolution of carbon flux estimates for 1983–2002 Type Journal Article
Year 2011 Publication Biogeosciences Abbreviated Journal
Volume 8 Issue 5 Pages 1309-1331
Keywords
Abstract We discuss the spatial and temporal resolution of monthly carbon flux estimates for the period 1983–2002 using a fixed-lag Kalman Smoother technique with a global chemical transport model, and the GLOBALVIEW data product. The observational network has expanded substantially over this period, and the flux estimates are better constrained provided by observations for the 1990's in comparison to the 1980's. The estimated uncertainties also decrease as observational coverage expands. In this study, we use the Globalview data product for a network that changes every 5 yr, rather than using a small number of continually-operating sites (fewer observational constraints) or a large number of sites, some of which may consist almost entirely of extrapolated data. We show that the discontinuities resulting from network changes reflect uncertainty due to a sparse and variable network. This uncertainty effectively limits the resolution of trends in carbon fluxes, and is a potentially significant source of noise in assimilation systems that allow changes in observation distribution between assimilation time steps.

The ability of the inversion to distinguish, or resolve, carbon fluxes at various spatial scales is examined using a diagnostic known as the resolution kernel. We find that the global partition between land and ocean fluxes is well-resolved even for the very sparse network of the 1980's, although prior information makes a significant contribution to the resolution. The ability to distinguish zonal average fluxes has improved significantly since the 1980's, especially for the tropics, where the zonal ocean and land biosphere fluxes can be distinguished. Care must be taken when interpreting zonal average fluxes, however, since the lack of air samples for some regions in a zone may result in a large influence from prior flux estimates for these regions. We show that many of the TransCom 3 source regions are distinguishable throughout the period over which estimates are produced. Examples are Boreal and Temperate North America. The resolution of fluxes from Europe and Australia has greatly improved since the 1990's. Other regions, notably Tropical South America and the Equatorial Atlantic remain practically unresolved.

Comparisons of the average seasonal cycle of the estimated carbon fluxes with the seasonal cycle of the prior flux estimates reveals a large adjustment of the summertime uptake of carbon for Boreal Eurasia, and an earlier onset of springtime uptake for Temperate North America. In addition, significantly larger seasonal cycles are obtained for some ocean regions, such as the Northern Ocean, North Pacific, North Atlantic and Western Equatorial Pacific, regions that appear to be well-resolved by the inversion.
Programme 416
Campaign
Address
Corporate Author Thesis Bachelor's thesis
Publisher (down) Copernicus Publications Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1726-4189 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 1685
Permanent link to this record
 
 
Author Smirnov A, Sayer A M, Holben B N, Hsu N C, Sakerin S M, Macke A, Nelson N B, Courcoux Y, Smyth T J, Croot P, Quinn P K, Sciare J, Gulev S K, Piketh S, Losno R, Kinne S, Radionov V F,
Title Effect of wind speed on aerosol optical depth over remote oceans, based on data from the Maritime Aerosol Network Type Journal Article
Year 2012 Publication Atmos. Meas. Tech. Abbreviated Journal
Volume 5 Issue 2 Pages 377-388
Keywords
Abstract The Maritime Aerosol Network (MAN) has been collecting data over the oceans since November 2006. The MAN archive provides a valuable resource for aerosol studies in maritime environments. In the current paper we investigate correlations between ship-borne aerosol optical depth (AOD) and near-surface wind speed, either measured (onboard or from satellite) or modeled (NCEP). According to our analysis, wind speed influences columnar aerosol optical depth, although the slope of the linear regression between AOD and wind speed is not steep (~0.004–0.005), even for strong winds over 10 m s−1. The relationships show significant scatter (correlation coefficients typically in the range 0.3–0.5); the majority of this scatter can be explained by the uncertainty on the input data. The various wind speed sources considered yield similar patterns. Results are in good agreement with the majority of previously published relationships between surface wind speed and ship-based or satellite-based AOD measurements. The basic relationships are similar for all the wind speed sources considered; however, the gradient of the relationship varies by around a factor of two depending on the wind data used.
Programme 415
Campaign
Address
Corporate Author Thesis
Publisher (down) Copernicus Publications Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 1867-8548 ISBN Medium
Area Expedition Conference
Notes Approved yes
Call Number Serial 3854
Permanent link to this record