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Le Quéré C., Aumont O., Bousquet P., Ciais P., Francey R., Heimann M., Keeling R., Khesgi H., Peylin P., Piper S., Prentice C. & Rayner P. |
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Title  |
Two decades of ocean CO2 sink and variability |
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Journal Article |
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2003 |
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Tellus series b-chemical and physical meteorology |
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55 |
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2 |
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649-656 |
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416;439 |
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0280-6509 |
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2963 |
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Bousquet P., P. Peylin, J. Miller, D. Hauglustaine, C. Carouge, C. Prigent, G. S. Tyler, E. Dlugokencky, R. Langenfelds, E. Brunke, M. Ramonet and P. Ciais |
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Title |
Two decades of methane sources and sinks as inferred by inverse modelling of atmospheric transport and chemistry |
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Conference - International - Poster |
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2005 |
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, Seventh International Carbon Dioxide Conference ICDC7, Boulder, Colorado, 26-30 septembre 2005. |
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416 |
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yes |
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3306 |
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Aidan D. Bindoff, Simon J. Wotherspoon, Christophe Guinet, Mark A. Hindell |
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Title |
Twilight-free geolocation from noisy light data |
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Journal |
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Year |
2017 |
Publication |
Methods in Ecology and Evolution |
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Volume |
9 |
Issue |
5 |
Pages |
1190-1198 |
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Keywords |
animal tracking archival tag bird migration global location sensor Hidden Markov Models |
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Abstract |
Solar geolocation is used to quantify the movements of animals tagged with sensors that record ambient light with respect to time. Global location sensor (GLS) tags are small, light, and present minimal drag or wing loading. They are affordable, and some can record data for several migratory cycles. These benefits mean they can be used in applications for which satellite tags are unsuitable. However, large errors in estimated locations can result if the sensor is obscured, especially around twilight, and sometimes the data obtained is unusable by existing methods of analysis due to this source of noise. This places limitations on the usefulness of solar geolocation in conservation and monitoring efforts. All existing methods of analysis are dependent on twilights being identifiable or faithfully recorded. Instead, the method introduced here depends on the overall pattern of day and night to calculate the likelihoods for a Hidden Markov Model, where the hidden states are geographic locations. We call this a “twilight-free” method of light-based geolocation. This method quickly estimates locations from otherwise unusable noisy light data. We use examples to show that the method produces tracks that are comparable in accuracy and precision to other geolocation methods. Furthermore, efficiency and replicability of estimated paths are improved because the user does not have to subjectively identify twilights. Other data sources, such as sea surface temperature and land or sea masks are easily incorporated, further improving location estimates and processing speed. The twilight-free method offers new opportunities to researchers interested in the movements of animals that routinely have obscured sensors, or to analyse previously unusable noisy light data. It offers a fast, efficient, and replicable method for analysing tag data without the need for time-consuming pre- or post-processing. By increasing the yield of usable data from GLS tagging studies, researchers can more efficiently quantify where animals are going and when, and monitor changes in habitat. This is of fundamental importance to management and conservation efforts. |
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1201 |
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2041-210X |
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2041-210X |
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yes |
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7314 |
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Author |
Barral H., C. Brun, O. Traullé, C. Genthon, E. Bazile |
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Title |
Turbulence mixing characterization at Dome C on the Antarctic plateau |
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Conference - International - Communication |
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Year |
2013 |
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DACA 2013, 8-12 Juillet 2013, Davos, Suisse. |
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1013 |
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yes |
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4496 |
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Author |
André R., Hanuise C., Villain J.-P. & Krassnoselkikh V. |
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Title |
Turbulence characteristics inside small-scale expanding structures observed with SuperDARN HF radars |
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Journal Article |
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Year |
2003 |
Publication |
Annales geophysicae |
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Volume |
21 |
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Pages |
1839-1845 |
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312;911 |
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0992-7689 |
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yes |
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3568 |
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Author |
Brun, C., H. Barral, S. Blein, C. Genthon |
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Title |
turbulence anisotropy in katabatic flows, from alpine slopes to antarctic plateau |
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Conference - International - Communication |
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2011 |
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EGU 2014, Vienne, Autriche, Avril 2014. |
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1013 |
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yes |
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1653 |
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Author |
Dabernat Henri, Thèves Catherine, Bouakaze Caroline, Nikolaeva Dariya, Keyser Christine, Mokrousov Igor, Géraut Annie, Duchesne Sylvie, Gérard Patrice, Alexeev Anatoly N, Crubézy Eric, Ludes Bertrand, |
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Title |
Tuberculosis Epidemiology and Selection in an Autochthonous Siberian Population from the 16th-19th Century
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Journal Article |
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2014 |
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PLoS ONE |
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Volume |
9 |
Issue |
2 |
Pages |
e89877- |
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1038 |
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Public Library of Science |
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1932-6203 |
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yes |
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4900 |
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A. Jamelot, A. Gailler, Ph. Heinrich, A. Vallage, J. Champenois |
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Title |
Tsunami Simulations of the Sulawesi Mw 7.5 Event: Comparison of Seismic Sources Issued from a Tsunami Warning Context Versus Post-Event Finite Source |
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2019 |
Publication |
Pure and applied geophysics |
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Volume |
176 |
Issue |
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Pages |
3351-3376 |
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Keywords |
numerical modelling strike-slip Sulawesi supershear Tsunami |
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Abstract |
The 28 September 2018 Sulawesi earthquake generated a much larger tsunami than expected from its Mw = 7.5 magnitude and from its dominant strike-slip mechanism. Within a few minutes after the earthquake, the tsunami devastated the seafront of Palu bay, destroying houses and infrastructures over a few hundred meters. Coastal subsidence and slumping at various locations around the bay were also observed. There is debate in the scientific community as to whether submarine landslides and shore collapses contributed to the generation of strong and destructive waves locally. The objective of this study is threefold: first, to determine whether standard seismic inversions could predict the source in the context of tsunami early warning; second, to define a new seismic source built from optical image correlation and based on the geological and tectonic context; third, to assess whether the earthquake alone is able to generate up to 9-m wave heights at the coast. Numerical simulations of the tsunami propagation are performed for different seismic dislocation sources. Nonlinear shallow water equations are solved by a finite-difference method in grids with 200-m and 10-m resolutions. The early CMT focal solutions calculated by seismological institutes show dominant strike-slip mechanisms with a homogenous slip distribution. These sources produce maximum tsunami heights of 40-cm on the coast of Palu city. Two heterogeneous sources are tested and compared: the USGS “finite fault” model calculated from seismic inversion and a new “hybrid” source inferred from different techniques. The latter is based on a segmented fault in agreement with the geological context and built from both from seismic parameters of a CMT solution and the observed horizontal ground displacements. This source produces water wave heights of 4 to 5-m in the Palu bay. The observed inundation heights and distances are reproduced satisfactorily by the model at Pantoloan and at the southwestern tip of Palu bay. However, the “hybrid” source is unable to reproduce the largest 8 to 12-m water heights as reported from field surveys. Thus, even though this “hybrid” source produces most of the reported tsunami energy, we cannot exclude that the numerous coastal collapses observed in Palu bay contributed to increase the local tsunami run-up. |
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133 |
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0033-4553 |
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7886 |
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Author |
Genicot S., Rentier Delrue F., Edwards D., Vanbeeumen J. & Gerday C. |
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Title |
Trypsin and trypsinogen from an Antarctic fish: molecular basis of cold adaptation. |
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Journal Article |
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Year |
1996 |
Publication |
Biochimica et biophysica acta |
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Biochim. Biophys. Acta |
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Volume |
1298 |
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45-57 |
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165 |
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0006-3002 |
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1587 |
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Krinner G. & Genthon C. |
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Title |
Tropospheric transport of continental tracers towardsAntarctica under varying climatic conditions. |
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2003 |
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Tellus series a-dynamic meteorology and oceanography |
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53 |
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54-70 |
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960 |
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0280-6495 |
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2229 |
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