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Author |
Krinner G. & Genthon C. |
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Title |
Tropospheric transport of continental tracers towardsAntarctica under varying climatic conditions. |
Type |
Journal Article |
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Year |
2003 |
Publication  |
Tellus series a-dynamic meteorology and oceanography |
Abbreviated Journal |
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Volume |
53 |
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Pages |
54-70 |
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960 |
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0280-6495 |
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yes |
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Call Number |
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Serial |
2229 |
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Author |
Siegenthaler U., Monnin E., Kawamura K., Spahni R., Schwander J., Stauffer B., Stocker T., Barnola J.M. & Fischer H. |
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Title |
Supporting evidence from the EPICA dronning maud Land ice core for atmospheric CO² changes during the past millenium. |
Type |
Journal Article |
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Year |
2005 |
Publication |
Tellus series a-dynamic meteorology and oceanography |
Abbreviated Journal |
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Volume |
B-57 |
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Pages |
51-57 |
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960 |
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0280-6495 |
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yes |
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Serial |
2982 |
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Author |
Thompson R., Manning A. C., Lowe D. C., Weatherburn D. C. |
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Title |
A ship-based methodology for high precision atmospheric oxygen measurements and its application in the Southern Ocean region |
Type |
Journal Article |
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Year |
2007 |
Publication |
Tellus series a-dynamic meteorology and oceanography |
Abbreviated Journal |
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Volume |
59 |
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Pages |
643-653 |
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439 |
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0280-6495 |
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yes |
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Serial |
4914 |
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Author |
Manning A.& Keeling R. F. |
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Title |
Global oceanic and land biotic carbon sinks from the Scripps atmospheric oxygen flasks sampling network. |
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Journal Article |
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Year |
2006 |
Publication |
Tellus series a-dynamic meteorology and oceanography |
Abbreviated Journal |
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Volume |
58B |
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Pages |
95-116 |
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439 |
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0280-6495 |
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yes |
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Serial |
4915 |
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Author |
Tohjima Y., H. Mukai, Y. Nojiri, N. Yamagishi |
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Title |
Atmospheric O2/N2 measurements at two Japanese sites: estimation of global oceanic and land biotic carbon sinks and analysis of the variations in atmospheric potential oxygen (APO) |
Type |
Journal Article |
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Year |
2008 |
Publication |
Tellus series a-dynamic meteorology and oceanography |
Abbreviated Journal |
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Volume |
60B |
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Pages |
213-225 |
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439 |
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0280-6495 |
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yes |
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Serial |
5316 |
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Author |
T. Shirai, M. Ishizawa, R. Zhuravlev, A. Ganshin, D. Belikov, M. Saito, T. Oda, V. Valsala, A. J. Gomez-Pelaez, R. Langenfelds, S. Maksyutov |
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Title |
A decadal inversion of CO2 using the Global Eulerian–Lagrangian Coupled Atmospheric model (GELCA): sensitivity to the ground-based observation network |
Type |
Journal |
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Year |
2017 |
Publication |
Tellus B: Chemical and Physical Meteorology |
Abbreviated Journal |
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Volume |
69 |
Issue |
1 |
Pages |
1291158 |
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Keywords |
carbon cycle carbon dioxide coupled model flux estimation inversion top-down approach tropical Asia |
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Abstract |
We present an assimilation system for atmospheric carbon dioxide (CO2) using a Global Eulerian–Lagrangian Coupled Atmospheric model (GELCA), and demonstrate its capability to capture the observed atmospheric CO2 mixing ratios and to estimate CO2 fluxes. With the efficient data handling scheme in GELCA, our system assimilates non-smoothed CO2 data from observational data products such as the Observation Package (ObsPack) data products as constraints on surface fluxes. We conducted sensitivity tests to examine the impact of the site selections and the prior uncertainty settings of observation on the inversion results. For these sensitivity tests, we made five different site/data selections from the ObsPack product. In all cases, the time series of the global net CO2 flux to the atmosphere stayed close to values calculated from the growth rate of the observed global mean atmospheric CO2 mixing ratio. At regional scales, estimated seasonal CO2 fluxes were altered, depending on the CO2 data selected for assimilation. Uncertainty reductions were determined at the regional scale and compared among cases. As measures of the model–data mismatch, we used the model–data bias, root-mean-square error, and the linear correlation. For most observation sites, the model–data mismatch was reasonably small. Regarding regional flux estimates, tropical Asia was one of the regions that showed a significant impact from the observation network settings. We found that the surface fluxes in tropical Asia were the most sensitive to the use of aircraft measurements over the Pacific, and the seasonal cycle agreed better with the results of bottom-up studies when the aircraft measurements were assimilated. These results confirm the importance of these aircraft observations, especially for constraining surface fluxes in the tropics. |
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416 |
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ISSN |
0280-6509 |
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Approved |
yes |
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Call Number |
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Serial |
6965 |
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Author |
Weller Rolf, Wagenbach Dietmar, Legrand Michel, Elsässer Christoph, Tian-kunze Xiangshan, König-langlo Gert, |
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Title |
Continuous 25-yr aerosol records at coastal Antarctica I: inter-annual variability of ionic compounds and links to climate indices |
Type |
Journal Article |
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Year |
2011 |
Publication |
Tellus B |
Abbreviated Journal |
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Abstract |
The aerosol climatology at the coastal Antarctic Neumayer Station (NM) was investigated based on continuous, 25-yr long observations of biogenic sulphur components (methanesulfonate and nonsea salt sulphate), sea salt and nitrate. Although significant long-term trends could only be detected for nitrate (3.6 ± 2.5% per year between 1983 and 1993 and +4.0 ± 3.2% per year from 19932007), non-harmonic periodicities between 2 and 5 yr were typical for all species. Dedicated time series analyses revealed that relations to sea ice extent and various circulation indices are weak at best or not significant. In particular, no consistent link between sea ice extent and sea salt loadings was evident suggesting only a rather local relevance of the NM sea salt record. Nevertheless, a higher Southern Annular Mode index tended to entail a lower biogenic sulphur signal. In examining the spatial uniformity of the NM findings we contrasted them to respective 17 yr records from the coastal Dumont dUrville Station. We found similar long-term trends for nitrate, indicating an Antarctic-wide but not identifiable atmospheric signal, although any significant impact of solar activity or pollution could be ruled out. No inter-site variability on the multiannual scale was evident for the other ionic compounds. |
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Programme |
414 |
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Thesis |
Bachelor's thesis |
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Publisher |
Blackwell Publishing Ltd |
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ISSN |
1600-0889 |
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yes |
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Call Number |
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Serial |
2549 |
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Author |
Garcia S., Angelier J., Bergerat F. & Homberg C. |
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Title |
Tectonic analysis of an oceanic transform fault zone based on fault-slip data and earthquake focal mechanism: the Husavik-Flatey zone, Iceland. |
Type |
Journal Article |
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Year |
2002 |
Publication |
Tectonophysics |
Abbreviated Journal |
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Volume |
344 |
Issue |
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Pages |
157-174 |
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316 |
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ISSN |
0040-1951 |
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yes |
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Serial |
275 |
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Author |
Delouis B., Cisternas A., Dorbath L., Rivera L. & Kausel E. |
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Title |
The Andean subduction zone between 22° S and 25° S (northern Chile): precise geometry and state of stress. |
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Journal Article |
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Year |
1996 |
Publication |
Tectonophysics |
Abbreviated Journal |
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Volume |
259 |
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81-100 |
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133 |
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0040-1951 |
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yes |
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Serial |
546 |
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Author |
Bergerat F., Gudmundsson A., Angelier J. & Rögnvaldsson S.T.H. |
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Title |
Seismotentonics of the central part of the South Iceland Seismic Zone. |
Type |
Journal Article |
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Year |
1998 |
Publication |
Tectonophysics |
Abbreviated Journal |
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Volume |
298 |
Issue |
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Pages |
319-335 |
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316 |
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0040-1951 |
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yes |
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Call Number |
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Serial |
902 |
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