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Author |
Elisa Floch |
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Title |
Catalogage de métadonnées polaires |
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Master 1 |
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2022 |
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136 |
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8496 |
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Author |
Casado, M., Leroy-Dos Santos, C., Fourré, E., Favier, V., Agosta, C., Arnaud, L., Prié, F., Akers, P. D., Janssen, L., Kittel, C., Savarino, J., and Landais, A. |
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Title |
Water vapor isotopic signature along the EAIIST traverse |
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Peer-reviewed symposium |
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Year |
2022 |
Publication |
Egu general assembly 2022 |
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Stable Water Isotopes Are A Tracer Of Hydrological Processes And A Paleoclimate Proxy From Ice Core Records. The Interpretation Of The Latter Relies On Fractionation Processes Throughout The Hydrological Cycle, From The Evaporation Over The Ocean, During Each Precipitation Event, And During Post-deposition Processes, In Particular Due To The Exchanges Between The Snow And The Moisture In The Atmosphere. Thanks To New Developments In Infrared Spectroscopy, It Is Now Possible To Monitor Not Only The Snow Isotopic Composition But Also The Vapour Continuously, And Thus Document Exchanges Between The Snow And The Vapour. On The East Antarctic Plateau, Records Of Water Vapour Isotopic Composition In Kohnen And Dome C During Summer Have Revealed Significant Diurnal Variability Which Can Be Used To Address The Exchange Between Surface Snow And Atmospheric Water Vapour As Well As The Stability Of The Atmospheric Boundary Layer. in This Study, We Present The First Vapour Monitoring On A Transect Across East Antarctica For A Period Of 3 Months From November 2019 To February 2020 During The Eaiist Traverse, Covering More Than 3600 Km. In Parallel, We Also Monitored The Vapour Isotopic Composition At Two Stations: Dumont D’urville (Ddu), The Starting Point, And Dome C, Half Way Through. Efforts On The Calibration On Each Monitoring Station, As Well As Cross-calibration Of The Different Instruments Offer A Unique Opportunity To Compare Both The Spatial And Temporal (Diurnal Variability Or At The Scale Of Several Days) Gradients Of Humidity, Temperature And Water Vapour Isotopic Composition In East Antarctica During The Summer Season. with The Use Of The Modele Atmospherique Régional (Mar), We Compare The Variability Measured In Water Vapour Isotopic Composition, Temperature And Humidity With The Different Systems (Fixed Or Mobile Location). Although Further Comparisons With The Surface Snow Isotopic Composition Are Required To Quantify The Impact Of The Snow-atmosphere Exchanges On The Local Surface Mass Balance, These Three Simultaneous Measurements Of The Vapour Isotopic Composition Show The Potential Of Using Water Stables Isotopes To Evaluate Hydrological Processes In East Antarctica. |
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1205 |
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EGU22-13362 |
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yes |
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8416 |
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A. Ola, D. Fortier, S. Coulombe, J. Comte, F. Domine |
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Title |
The Distribution of Soil Carbon and Nitrogen Stocks Among Dominant Geomorphological Terrain Units in Qarlikturvik Valley, Bylot Island, Arctic Canada |
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Journal |
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Year |
2022 |
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Journal of Geophysical Research: Biogeosciences |
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Volume |
127 |
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7 |
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e2021JG006750 |
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Keywords |
alluvial fan Arctic permafrost polygon tundra |
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Soils of circumpolar regions store large amounts of carbon (C) and are a crucial part of the global C cycle. Yet, little is known about the distribution of soil C stocks among geomorphological terrain units of glacial valleys in the Arctic. Soil C and nitrogen (N) content for the top 100 cm of the dominant vegetated geomorphological terrain units (i.e., alluvial fans, humid polygons, mesic polygons) at Qarlikturvik Valley, Bylot Island, Canada have been analyzed. Soil C content was greatest in humid low-center ice-wedge polygons (82 kg m?2), followed by mesic flat-center ice-wedge polygons (40 kg m?2), and alluvial fan area (16 kg m?2), due to prevailing geomorphological processes, differences in vegetation and soil characteristics, as well as permafrost processes. Soil N content was greatest in humid polygons (4 kg m?2), followed by mesic polygons (2 kg m?2), and alluvial fan area (1 kg m?2). Vertically, C and N decreased with increasing depth except for a peak in C at depth in humid polygons, a likely result of past changes in vegetation cover. At Qarlikturvik Valley, which has a size of 121.7 km2, alluvial fans store 0.226 Tg organic C and humid and mesic polygons store 1.643 and 0.218 Tg organic C, respectively in the top 100 cm of soil. Findings like these are important to further constrain pan-Arctic soil C and N stock estimates and thus climate models. |
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1042 |
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2169-8961 |
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yes |
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8594 |
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Title |
Achievements and Prospects of Global Broadband Seismographic Networks After 30 Years of Continuous Geophysical Observations |
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Journal |
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Year |
2022 |
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Reviews of Geophysics |
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60 |
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3 |
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e2021RG000749 |
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Abstract |
Global seismographic networks (GSNs) emerged during the late nineteenth and early twentieth centuries, facilitated by seminal international developments in theory, technology, instrumentation, and data exchange. The mid- to late-twentieth century saw the creation of the World-Wide Standardized Seismographic Network (1961) and International Deployment of Accelerometers (1976), which advanced global geographic coverage as seismometer bandwidth increased greatly allowing for the recording of the Earth's principal seismic spectrum. The modern era of global observations and rapid data access began during the 1980s, and notably included the inception of the GEOSCOPE initiative (1982) and GSN (1988). Through continual improvements, GEOSCOPE and the GSN have realized near-real time recording of ground motion with state-of-art data quality, dynamic range, and timing precision to encompass 180 seismic stations, many in very remote locations. Data from GSNs are increasingly integrated with other geophysical data (e.g., space geodesy, infrasound and Interferometric Synthetic Aperture Radar). Globally distributed seismic data are critical to resolving crust, mantle, and core structure; illuminating features of the plate tectonic and mantle convection system; rapid characterization of earthquakes; identification of potential tsunamis; global nuclear test verification; and provide sensitive proxies for environmental changes. As the global geosciences community continues to advance our understanding of Earth structure and processes controlling elastic wave propagation, GSN infrastructure offers a springboard to realize increasingly multi-instrument geophysical observatories. Here, we review the historical, scientific, and monitoring heritage of GSNs, summarize key discoveries, and discuss future associated opportunities for Earth Science. |
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133 |
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1944-9208 |
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yes |
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8559 |
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Title |
Temporal trends of mercury in Arctic biota: 10 more years of progress in Arctic monitoring |
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2022 |
Publication |
Science of The Total Environment |
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839 |
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155803 |
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Arctic Biota Environmental monitoring Mercury Statistical assessment Temporal trends |
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330,388 |
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Bachelor's thesis |
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ISSN |
0048-9697 |
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yes |
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8422 |
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Title |
Summer variability of the atmospheric NO2 : ?NO ratio at Dome C on the East Antarctic Plateau |
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Journal |
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Year |
2022 |
Publication |
Atmospheric Chemistry and Physics |
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22 |
Issue |
18 |
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12025-12054 |
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1177 |
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1680-7316 |
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yes |
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8591 |
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Author |
Alexandra Lavrillier, Semen Gabyshev |
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Traditsionnye ekologicheskie znaniia [Traditional environmental knowledge], In (Eds) L.I. Missonova, A.A. Sirina Tunguso-man'chzhurskie narody Sibiri i Dal'nego vostoka: Evenki. Eveny. Negidal'tsy, Uil'ta, Nanaitsy, Ul'chi, Udegeitsy, Oroch, Tazy [The Tungus-Manchu peoples of Siberia and the Far East: Evenki. Even. Neghidal. Uil’ta, Nanai, Ulch, Udhegei, Oroch, Taz. Nanais. Ulchi. Udege. Orochi. Tazy], Coll. Narody i Kultury, Institute of Ethnology and Anthropology im. N.N. Miklukho-Maclay Russian Academy of Science. M.: Nauka, 2022. (Peoples and cultures). pp. 459-472. |
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Journal |
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2022 |
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Contributions to peer-reviewed edited volumes. In (Eds) L.I. Missonova, A.A. Sirina Tunguso-man'chzhurskie narody Sibiri i Dal'nego vostoka: Evenki. Eveny. Negidal'tsy, Uil'ta, Nanaitsy, Ul'chi, Udegeitsy, Oroch, Tazy [The Tungus-Manchu peoples of Siberia |
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Narody i Kultury |
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459-472 |
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1127 |
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yes |
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8687 |
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Title |
Quantitative meta-analysis reveals no association between mercury contamination and body condition in birds |
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Journal |
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Year |
2022 |
Publication |
Biological Reviews |
Abbreviated Journal |
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Volume |
97 |
Issue |
4 |
Pages |
1253-1271 |
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Keywords |
blood body mass energetics fat feather feeding habitat metabolism species |
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109,330,388,1036,1210 |
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Bachelor's thesis |
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ISSN |
1469-185X |
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yes |
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8400 |
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Author |
Ambre Bébin |
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Title |
Catalogage de métadonnées et de données des projets de la zone atelier Antarctique et Terres Australes |
Type |
Master 1 |
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Year |
2022 |
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136 |
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yes |
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8037 |
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Title |
Fisheries bycatch mitigation measures as an efficient tool for the conservation of seabird populations |
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Journal |
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Year |
2022 |
Publication |
Journal of Applied Ecology |
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Volume |
59 |
Issue |
7 |
Pages |
1674-1685 |
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109 |
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ISSN |
1365-2664 |
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yes |
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Call Number |
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Serial |
8570 |
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