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Yu W, Guo R, Thompson LG, Zhang J, Lewis S, Jing Z, He J, Ma Y, Xu B, Wu G, Zhou X, Tang W, Wang Q, Ren P, Zhang Z, Qu D. Water isotope ratios reflect convection intensity rather than rain type proportions in the pantropics. SCIENCE ADVANCES 2024; 10:eado3258. [PMID: 39141721 PMCID: PMC11323887 DOI: 10.1126/sciadv.ado3258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/29/2024] [Accepted: 07/08/2024] [Indexed: 08/16/2024]
Abstract
Against the traditional view, a recently published theory argued that isotope ratios are higher in convective precipitation but lower in stratiform precipitation and proposed that isotope ratios reflect rain type proportions. This theory has been widely cited despite some early reservations. Whether the theory represents a faithful reflection of signals of water isotope ratios remains unclear. Here, we reassess its validity from different timescales and broader observations from the pantropics. Unexpectedly, our findings contradict the theory on daily, monthly, and even annual timescales. Pantropical precipitation isotope ratios remain strongly correlated to convection intensity but are independent of rain type proportions because stratiform precipitation isotope ratios cover a large range of values. We find that the theory has many serious weaknesses related to preferential data selection and suggest that new theories need to be validated at more locations on different timescales before gaining widespread acceptance.
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Affiliation(s)
- Wusheng Yu
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Rong Guo
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lonnie G. Thompson
- Byrd Polar and Climate Research Center, The Ohio State University, Columbus, OH 43210, USA
| | - Jingyi Zhang
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Stephen Lewis
- Catchment to Reef Research Group, Centre for Tropical Water and Aquatic Ecosystem Research, James Cook University, Townsville, QLD 4811, Australia
| | | | - Junmei He
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
- Faculty of Geography, Yunnan Normal University, Kunming 650500, China
| | - Yaoming Ma
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
- College of Atmospheric Science, Lanzhou University, Lanzhou 730000, China
| | - Baiqing Xu
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Guangjian Wu
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Xu Zhou
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Wenjun Tang
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
| | - Qiaoyi Wang
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Pengjie Ren
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhuanxia Zhang
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Dongmei Qu
- State Key Laboratory of Tibetan Plateau Earth System, Environment and Resources (TPESER), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100101, China
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Jeelani G, Hassan W, Padhya V, Deshpande RD, Dimri AP, Lone SA. Significant role of permafrost in regional hydrology of the Upper Indus Basin, India. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 919:170863. [PMID: 38340842 DOI: 10.1016/j.scitotenv.2024.170863] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 02/06/2024] [Accepted: 02/07/2024] [Indexed: 02/12/2024]
Abstract
Upper Indus Basin (UIB), being climatologically sensitive and socio-economically important, has emerged as a hotspot for eco-hydrological studies. Permafrost, one of the essential components of the regional hydrological cycle with a critical role in microclimate, is also an important water resource in the UIB. Despite being an important component of the cryospheric system, permafrost is least studied in the UIB. In present study, we used stable oxygen and hydrogen isotopic composition in supra-permafrost water (SPFW) and aufeis along with precipitation, snowpack, glacier and other groundwaters to assess their variability and estimate their contribution to regional hydrology. The sources are evolving isotopically, depending on physiographic and hydrometeorological factors, with each source attaining different (if not distinct) isotopic signatures. The isotopic signatures (with different ranges) of sources help in estimating the contribution from these sources. A significant altitude gradient of δ18O is observed in stream water, SPFW and other groundwaters. Isotopic composition in SPFW is differentially modulated by fractionation, resulting in isotopic variability from the source waters. The results suggest snowmelt and/or glacier melt as the source of SPFW. To stream flow, SPFW is the dominant contributor (43 ± 18 %) at higher elevations (> 4300 m a.m.s.l.) in July, followed by snowmelt (26 ± 10 %). In September, SPFW contribution decreases (14 ± 8 %), but the contribution from other groundwaters becomes dominant (39 ± 11 %) to stream flow. The results indicate the significant role of seasonal thawing and freezing of active layer on the contribution from SPFW. This study highlights the significant role of permafrost in the hydrological system of the basin. The study also emphasizes the need to understand the dynamics of permafrost, taliks of various types (e.g., supra-permafrost subaerial talik) and active layer under changing climate to define the subsequent implications to regional hydrology, eco-hydrological systems and micro-climate of permafrost regions.
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Affiliation(s)
- G Jeelani
- Department of Earth Sciences, University of Kashmir, 190006, India.
| | - Wasim Hassan
- Department of Earth Sciences, University of Kashmir, 190006, India
| | - Virendra Padhya
- Geoscience Division, Physical Research Laboratory, Ahmedabad 380009, India
| | - R D Deshpande
- Geoscience Division, Physical Research Laboratory, Ahmedabad 380009, India
| | - A P Dimri
- School of Environmental Sciences, Jawaharlal Nehru University, New Delhi 110067, India
| | - Suhail A Lone
- Department of Earth Sciences, University of Kashmir, 190006, India
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3
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Jones TR, Cuffey KM, Roberts WHG, Markle BR, Steig EJ, Stevens CM, Valdes PJ, Fudge TJ, Sigl M, Hughes AG, Morris V, Vaughn BH, Garland J, Vinther BM, Rozmiarek KS, Brashear CA, White JWC. Seasonal temperatures in West Antarctica during the Holocene. Nature 2023; 613:292-297. [PMID: 36631651 PMCID: PMC9834049 DOI: 10.1038/s41586-022-05411-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2021] [Accepted: 10/04/2022] [Indexed: 01/13/2023]
Abstract
The recovery of long-term climate proxy records with seasonal resolution is rare because of natural smoothing processes, discontinuities and limitations in measurement resolution. Yet insolation forcing, a primary driver of multimillennial-scale climate change, acts through seasonal variations with direct impacts on seasonal climate1. Whether the sensitivity of seasonal climate to insolation matches theoretical predictions has not been assessed over long timescales. Here, we analyse a continuous record of water-isotope ratios from the West Antarctic Ice Sheet Divide ice core to reveal summer and winter temperature changes through the last 11,000 years. Summer temperatures in West Antarctica increased through the early-to-mid-Holocene, reached a peak 4,100 years ago and then decreased to the present. Climate model simulations show that these variations primarily reflect changes in maximum summer insolation, confirming the general connection between seasonal insolation and warming and demonstrating the importance of insolation intensity rather than seasonally integrated insolation or season duration2,3. Winter temperatures varied less overall, consistent with predictions from insolation forcing, but also fluctuated in the early Holocene, probably owing to changes in meridional heat transport. The magnitudes of summer and winter temperature changes constrain the lowering of the West Antarctic Ice Sheet surface since the early Holocene to less than 162 m and probably less than 58 m, consistent with geological constraints elsewhere in West Antarctica4-7.
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Affiliation(s)
- Tyler R Jones
- Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, USA.
| | - Kurt M Cuffey
- Department of Geography, University of California, Berkeley, CA, USA
| | - William H G Roberts
- Geography and Environmental Sciences, Northumbria University, Newcastle-upon-Tyne, UK
| | - Bradley R Markle
- Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, USA.,Department of Geological Sciences, University of Colorado, Boulder, CO, USA
| | - Eric J Steig
- Department of Earth and Space Sciences, University of Washington, Seattle, WA, USA
| | - C Max Stevens
- Cryospheric Science Laboratory, NASA Goddard Space Flight Center, Greenbelt, MD, USA.,Earth System Science Interdisciplinary Center, University of Maryland, College Park, MD, USA
| | - Paul J Valdes
- School of Geographical Sciences, University of Bristol, Bristol, UK
| | - T J Fudge
- Department of Earth and Space Sciences, University of Washington, Seattle, WA, USA
| | - Michael Sigl
- Climate and Environmental Physics, Physics Institute & Oeschger Centre for Climate Change Research, University of Bern, Bern, Switzerland
| | - Abigail G Hughes
- Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, USA.,Department of Geological Sciences, University of Colorado, Boulder, CO, USA
| | - Valerie Morris
- Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, USA
| | - Bruce H Vaughn
- Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, USA
| | - Joshua Garland
- Center on Narrative, Disinformation and Strategic Influence, Arizona State University, Tempe, AZ, USA
| | - Bo M Vinther
- Centre for Ice and Climate, Niels Bohr Institute, University of Copenhagen, Copenhagen, Denmark
| | - Kevin S Rozmiarek
- Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, USA.,Department of Geological Sciences, University of Colorado, Boulder, CO, USA
| | - Chloe A Brashear
- Institute of Arctic and Alpine Research, University of Colorado, Boulder, CO, USA.,Department of Geological Sciences, University of Colorado, Boulder, CO, USA
| | - James W C White
- College of Arts and Sciences, University of North Carolina, Chapel Hill, NC, USA
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4
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Zannoni D, Steen‐Larsen HC, Peters AJ, Wahl S, Sodemann H, Sveinbjörnsdóttir AE. Non-Equilibrium Fractionation Factors for D/H and 18O/ 16O During Oceanic Evaporation in the North-West Atlantic Region. JOURNAL OF GEOPHYSICAL RESEARCH. ATMOSPHERES : JGR 2022; 127:e2022JD037076. [PMID: 36582456 PMCID: PMC9786641 DOI: 10.1029/2022jd037076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 05/05/2022] [Revised: 10/12/2022] [Accepted: 10/25/2022] [Indexed: 06/17/2023]
Abstract
Ocean isotopic evaporation models, such as the Craig-Gordon model, rely on the description of nonequilibrium fractionation factors that are, in general, poorly constrained. To date, only a few gradient-diffusion type measurements have been performed in ocean settings to test the validity of the commonly used parametrization of nonequilibrium isotopic fractionation during ocean evaporation. In this work, we present 6 months of water vapor isotopic observations collected from a meteorological tower located in the northwest Atlantic Ocean (Bermuda) with the objective of estimating nonequilibrium fractionation factors (k, ‰) for ocean evaporation and their wind speed dependency. The Keeling Plot method and Craig-Gordon model combination were sensitive enough to resolve nonequilibrium fractionation factors during evaporation resulting into mean values of k 18 = 5.2 ± 0.6‰ and k 2 = 4.3 ± 3.4‰. Furthermore, we evaluate the relationship between k and 10-m wind speed over the ocean. Such a relationship is expected from current evaporation theory and from laboratory experiments made in the 1970s, but observational evidence is lacking. We show that (a) in the observed wind speed range [0-10 m s-1], the sensitivity of k to wind speed is small, in the order of -0.2‰ m-1 s for k 18, and (b) there is no empirical evidence for the presence of a discontinuity between smooth and rough wind speed regime during isotopic fractionation, as proposed in earlier studies. The water vapor d-excess variability predicted under the closure assumption using the k values estimated in this study is in agreement with observations over the Atlantic Ocean.
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Affiliation(s)
- D. Zannoni
- Geophysical InstituteUniversity of Bergen and Bjerknes Centre for Climate ResearchBergenNorway
| | - H. C. Steen‐Larsen
- Geophysical InstituteUniversity of Bergen and Bjerknes Centre for Climate ResearchBergenNorway
| | - A. J. Peters
- Bermuda Institute of Ocean SciencesSt. George’sBermuda
| | - S. Wahl
- Geophysical InstituteUniversity of Bergen and Bjerknes Centre for Climate ResearchBergenNorway
| | - H. Sodemann
- Geophysical InstituteUniversity of Bergen and Bjerknes Centre for Climate ResearchBergenNorway
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5
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Factors Influencing Changes of the Initial Stable Water Isotopes Composition in the Seasonal Snowpack of the South of Western Siberia, Russia. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12020625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Stable water isotopes in snowpack and snowfalls are widely used for understanding hydrological processes occurring in the seasonally snow-covered territories. The present study examines the main factors influencing changes of the initial stable water isotopes composition in the seasonal snow cover of the south of Western Siberia. Studies of the isotopic composition of snow precipitation and snow cover, as well as experiments with them, were carried out during two cold seasons of 2019–2021, and laser spectroscopy PICARRO L2130-i (WS-CRDS) was used for the determination of water isotope composition (δ18O and δD). The main changes in the isotopic composition of the snow cover layers in the studied region are associated with the existence of a vertical temperature gradient between the layers and with the penetration of soil moisture into the bottom layers in the absence of soil freezing. During the winter period, the sublimation from the top layer of snow is observed only at the moments of a sharp increase in the daily air temperature. At the end of winter, the contrast between day and night air temperatures determines the direction of the shift in the isotopic composition of the top layer of snow relative to the initial snow precipitation.
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6
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A 120,000-year long climate record from a NW-Greenland deep ice core at ultra-high resolution. Sci Data 2021; 8:141. [PMID: 34040008 PMCID: PMC8155095 DOI: 10.1038/s41597-021-00916-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 04/07/2021] [Indexed: 11/12/2022] Open
Abstract
We report high resolution measurements of the stable isotope ratios of ancient ice (δ18O, δD) from the North Greenland Eemian deep ice core (NEEM, 77.45° N, 51.06° E). The record covers the period 8–130 ky b2k (y before 2000) with a temporal resolution of ≈0.5 and 7 y at the top and the bottom of the core respectively and contains important climate events such as the 8.2 ky event, the last glacial termination and a series of glacial stadials and interstadials. At its bottom part the record contains ice from the Eemian interglacial. Isotope ratios are calibrated on the SMOW/SLAP scale and reported on the GICC05 (Greenland Ice Core Chronology 2005) and AICC2012 (Antarctic Ice Core Chronology 2012) time scales interpolated accordingly. We also provide estimates for measurement precision and accuracy for both δ18O and δD. Measurement(s) | isotope analysis • water ice core | Technology Type(s) | cavity ring-down spectroscopy | Factor Type(s) | δ18O • δD | Sample Characteristic - Location | Greenland Ice Sheet |
Machine-accessible metadata file describing the reported data: 10.6084/m9.figshare.14216441
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7
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Reconciling glacial Antarctic water stable isotopes with ice sheet topography and the isotopic paleothermometer. Nat Commun 2018; 9:3537. [PMID: 30166550 PMCID: PMC6117368 DOI: 10.1038/s41467-018-05430-y] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2017] [Accepted: 06/28/2018] [Indexed: 11/26/2022] Open
Abstract
Stable water isotope records from Antarctica are key for our understanding of Quaternary climate variations. However, the exact quantitative interpretation of these important climate proxy records in terms of surface temperature, ice sheet height and other climatic changes is still a matter of debate. Here we report results obtained with an atmospheric general circulation model equipped with water isotopes, run at a high-spatial horizontal resolution of one-by-one degree. Comparing different glacial maximum ice sheet reconstructions, a best model data match is achieved for the PMIP3 reconstruction. Reduced West Antarctic elevation changes between 400 and 800 m lead to further improved agreement with ice core data. Our modern and glacial climate simulations support the validity of the isotopic paleothermometer approach based on the use of present-day observations and reveal that a glacial ocean state as displayed in the GLAMAP reconstruction is suitable for capturing the observed glacial isotope changes in Antarctic ice cores. Despite their importance, the accuracy of the quantitative interpretation of Antarctic ice core stable water isotope records remains a matter of debate. Here, the authors use an isotope-enabled atmospheric general circulation model to test and validate the isotopic paleothermometer approach.
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8
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Asynchrony between Antarctic temperature and CO 2 associated with obliquity over the past 720,000 years. Nat Commun 2018; 9:961. [PMID: 29511182 PMCID: PMC5840396 DOI: 10.1038/s41467-018-03328-3] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Accepted: 02/05/2018] [Indexed: 11/08/2022] Open
Abstract
The δD temperature proxy in Antarctic ice cores varies in parallel with CO2 through glacial cycles. However, these variables display a puzzling asynchrony. Well-dated records of Southern Ocean temperature will provide crucial information because the Southern Ocean is likely key in regulating CO2 variations. Here, we perform multiple isotopic analyses on an Antarctic ice core and estimate temperature variations at this site and in the oceanic moisture source over the past 720,000 years, which extend the longest records by 300,000 years. Antarctic temperature is affected by large variations in local insolation that are induced by obliquity. At the obliquity periodicity, the Antarctic and ocean temperatures lag annual mean insolation. Further, the magnitude of the phase lag is minimal during low eccentricity periods, suggesting that secular changes in the global carbon cycle and the ocean circulation modulate the phase relationship among temperatures, CO2 and insolation in the obliquity frequency band.
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9
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Galewsky J, Steen-Larsen HC, Field RD, Worden J, Risi C, Schneider M. Stable isotopes in atmospheric water vapor and applications to the hydrologic cycle. REVIEWS OF GEOPHYSICS (WASHINGTON, D.C. : 1985) 2016; 54:809-865. [PMID: 32661517 PMCID: PMC7357203 DOI: 10.1002/2015rg000512] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
The measurement and simulation of water vapor isotopic composition has matured rapidly over the last decade, with long-term datasets and comprehensive modeling capabilities now available. Theories for water vapor isotopic composition have been developed by extending the theories that have been used for the isotopic composition of precipitation to include a more nuanced understanding of evaporation, large-scale mixing, deep convection, and kinetic fractionation. The technologies for in-situ and remote sensing measurements of water vapor isotopic composition have developed especially rapidly over the last decade, with discrete water vapor sampling methods, based on mass spectroscopy, giving way to laser spectroscopic methods and satellite- and ground-based infrared absorption techniques. The simulation of water vapor isotopic composition has evolved from General Circulation Model (GCM) methods for simulating precipitation isotopic composition to sophisticated isotope-enabled microphysics schemes using higher-order moments for water- and ice-size distributions. The incorporation of isotopes into GCMs has enabled more detailed diagnostics of the water cycle and has led to improvements in its simulation. The combination of improved measurement and modeling of water vapor isotopic composition opens the door to new advances in our understanding of the atmospheric water cycle, in processes ranging from the marine boundary layer, through deep convection and tropospheric mixing, and into the water cycle of the stratosphere. Finally, studies of the processes governing modern water vapor isotopic composition provide an improved framework for the interpretation of paleoclimate proxy records of the hydrological cycle.
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Affiliation(s)
- Joseph Galewsky
- Department of Earth and Planetary Sciences, University of New Mexico, Albuquerque, New Mexico, USA
| | | | - Robert D Field
- NASA Goddard Institute for Space Studies, New York, New York, USA
- Department of Applied Physics and Applied Mathematics, Columbia University, New York, New York, USA
| | - John Worden
- Jet Propulsion Laboratory, California Institute of Technology, Pasadena, California, USA
| | - Camille Risi
- Laboratoire de Meteorologie Dynamique, Institut Pierre Simon Laplace, Centre National de la Recherche Scientifique, Paris, France
| | - Matthias Schneider
- Institute for Meteorology and Climate Research (IMK-ASF), Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany
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10
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Interannual variation of water isotopologues at Vostok indicates a contribution from stratospheric water vapor. Proc Natl Acad Sci U S A 2013; 110:17674-9. [PMID: 23798406 DOI: 10.1073/pnas.1215209110] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Combined measurements of water isotopologues of a snow pit at Vostok over the past 60 y reveal a unique signature that cannot be explained only by climatic features as usually done. Comparisons of the data using a general circulation model and a simpler isotopic distillation model reveal a stratospheric signature in the (17)O-excess record at Vostok. Our data and theoretical considerations indicate that mass-independent fractionation imprints the isotopic signature of stratospheric water vapor, which may allow for a distinction between stratospheric and tropospheric influences at remote East Antarctic sites.
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11
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Hou S, Wang Y, Pang H. Climatology of stable isotopes in Antarctic snow and ice: Current status and prospects. CHINESE SCIENCE BULLETIN-CHINESE 2012. [DOI: 10.1007/s11434-012-5543-y] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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12
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Ishizaki Y, Yoshimura K, Kanae S, Kimoto M, Kurita N, Oki T. Interannual variability of H218O in precipitation over the Asian monsoon region. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/2011jd015890] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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13
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Persson A, Langen PL, Ditlevsen P, Vinther BM. The influence of precipitation weighting on interannual variability of stable water isotopes in Greenland. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010jd015517] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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14
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Sjolte J, Hoffmann G, Johnsen SJ, Vinther BM, Masson-Delmotte V, Sturm C. Modeling the water isotopes in Greenland precipitation 1959–2001 with the meso-scale model REMO-iso. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010jd015287] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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15
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Steen-Larsen HC, Masson-Delmotte V, Sjolte J, Johnsen SJ, Vinther BM, Bréon FM, Clausen HB, Dahl-Jensen D, Falourd S, Fettweis X, Gallée H, Jouzel J, Kageyama M, Lerche H, Minster B, Picard G, Punge HJ, Risi C, Salas D, Schwander J, Steffen K, Sveinbjörnsdóttir AE, Svensson A, White J. Understanding the climatic signal in the water stable isotope records from the NEEM shallow firn/ice cores in northwest Greenland. ACTA ACUST UNITED AC 2011. [DOI: 10.1029/2010jd014311] [Citation(s) in RCA: 111] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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16
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Johnson LR, Sharp ZD, Galewsky J, Strong M, Van Pelt AD, Dong F, Noone D. Hydrogen isotope correction for laser instrument measurement bias at low water vapor concentration using conventional isotope analyses: application to measurements from Mauna Loa Observatory, Hawaii. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011; 25:608-616. [PMID: 21290447 DOI: 10.1002/rcm.4894] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The hydrogen and oxygen isotope ratios of water vapor can be measured with commercially available laser spectroscopy analyzers in real time. Operation of the laser systems in relatively dry air is difficult because measurements are non-linear as a function of humidity at low water concentrations. Here we use field-based sampling coupled with traditional mass spectrometry techniques for assessing linearity and calibrating laser spectroscopy systems at low water vapor concentrations. Air samples are collected in an evacuated 2 L glass flask and the water is separated from the non-condensable gases cryogenically. Approximately 2 µL of water are reduced to H(2) gas and measured on an isotope ratio mass spectrometer. In a field experiment at the Mauna Loa Observatory (MLO), we ran Picarro and Los Gatos Research (LGR) laser analyzers for a period of 25 days in addition to periodic sample collection in evacuated flasks. When the two laser systems are corrected to the flask data, they are strongly coincident over the entire 25 days. The δ(2)H values were found to change by over 200‰ over 2.5 min as the boundary layer elevation changed relative to MLO. The δ(2)H values ranged from -106 to -332‰, and the δ(18)O values (uncorrected) ranged from -12 to -50‰. Raw data from laser analyzers in environments with low water vapor concentrations can be normalized to the international V-SMOW scale by calibration to the flask data measured conventionally. Bias correction is especially critical for the accurate determination of deuterium excess in dry air.
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Affiliation(s)
- L R Johnson
- Department of Earth and Planetary Sciences, MSCO, University of New Mexico, Albuquerque, 87131-0001, USA.
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17
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Blossey PN, Kuang Z, Romps DM. Isotopic composition of water in the tropical tropopause layer in cloud-resolving simulations of an idealized tropical circulation. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010jd014554] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Peter N. Blossey
- Atmospheric Sciences; University of Washington; Seattle Washington USA
| | - Zhiming Kuang
- Department of Earth and Planetary Sciences; Harvard University; Cambridge Massachusetts USA
| | - David M. Romps
- Department of Earth and Planetary Sciences; Harvard University; Cambridge Massachusetts USA
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18
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Field RD, Jones DBA, Brown DP. Effects of postcondensation exchange on the isotopic composition of water in the atmosphere. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010jd014334] [Citation(s) in RCA: 63] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Robert D. Field
- Department of Physics; University of Toronto; Toronto Canada
| | | | - Derek P. Brown
- Department of Atmospheric and Oceanic Sciences and Cooperative Institute for Research in Environmental Sciences; University of Colorado; Boulder Colorado USA
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Vachon RW, Welker JM, White JWC, Vaughn BH. Monthly precipitation isoscapes (δ18O) of the United States: Connections with surface temperatures, moisture source conditions, and air mass trajectories. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2010jd014105] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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20
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Risi C, Bony S, Vimeux F, Jouzel J. Water-stable isotopes in the LMDZ4 general circulation model: Model evaluation for present-day and past climates and applications to climatic interpretations of tropical isotopic records. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2009jd013255] [Citation(s) in RCA: 229] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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21
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Risi C, Landais A, Bony S, Jouzel J, Masson-Delmotte V, Vimeux F. Understanding the17O excess glacial-interglacial variations in Vostok precipitation. ACTA ACUST UNITED AC 2010. [DOI: 10.1029/2008jd011535] [Citation(s) in RCA: 56] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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22
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Hou S, Li Y, Xiao C, Pang H, Xu J. Preliminary results of the close-off depth and the stable isotopic records along a 109.91 m ice core from Dome A, Antarctica. ACTA ACUST UNITED AC 2009. [DOI: 10.1007/s11430-009-0039-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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23
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Town MS, Warren SG, Walden VP, Waddington ED. Effect of atmospheric water vapor on modification of stable isotopes in near-surface snow on ice sheets. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008jd009852] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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24
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Uemura R, Matsui Y, Yoshimura K, Motoyama H, Yoshida N. Evidence of deuterium excess in water vapor as an indicator of ocean surface conditions. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008jd010209] [Citation(s) in RCA: 208] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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25
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Yoshimura K, Kanamitsu M, Noone D, Oki T. Historical isotope simulation using Reanalysis atmospheric data. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2008jd010074] [Citation(s) in RCA: 266] [Impact Index Per Article: 16.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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26
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Sodemann H, Masson-Delmotte V, Schwierz C, Vinther BM, Wernli H. Interannual variability of Greenland winter precipitation sources: 2. Effects of North Atlantic Oscillation variability on stable isotopes in precipitation. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jd009416] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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27
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Noone D. The influence of midlatitude and tropical overturning circulation on the isotopic composition of atmospheric water vapor and Antarctic precipitation. ACTA ACUST UNITED AC 2008. [DOI: 10.1029/2007jd008892] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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28
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Helsen MM, van de Wal RSW, van den Broeke MR, Masson-Delmotte V, Meijer HAJ, Scheele MP, Werner M. Modeling the isotopic composition of Antarctic snow using backward trajectories: Simulation of snow pit records. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006524] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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29
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Liebminger A, Haberhauer G, Papesch W, Heiss G. Correlation of the isotopic composition in precipitation with local conditions in alpine regions. ACTA ACUST UNITED AC 2006. [DOI: 10.1029/2005jd006258] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Masson-Delmotte V, Landais A, Stievenard M, Cattani O, Falourd S, Jouzel J, Johnsen SJ, Dahl-Jensen D, Sveinsbjornsdottir A, White JWC, Popp T, Fischer H. Holocene climatic changes in Greenland: Different deuterium excess signals at Greenland Ice Core Project (GRIP) and NorthGRIP. ACTA ACUST UNITED AC 2005. [DOI: 10.1029/2004jd005575] [Citation(s) in RCA: 80] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- V. Masson-Delmotte
- l'Institut Pierre-Simon Laplace/Commissariat à l'Energie Atomique; CNRS Laboratoire des Sciences du Climat et de l'Environnement; Gif-sur-Yvette France
| | - A. Landais
- l'Institut Pierre-Simon Laplace/Commissariat à l'Energie Atomique; CNRS Laboratoire des Sciences du Climat et de l'Environnement; Gif-sur-Yvette France
| | - M. Stievenard
- l'Institut Pierre-Simon Laplace/Commissariat à l'Energie Atomique; CNRS Laboratoire des Sciences du Climat et de l'Environnement; Gif-sur-Yvette France
| | - O. Cattani
- l'Institut Pierre-Simon Laplace/Commissariat à l'Energie Atomique; CNRS Laboratoire des Sciences du Climat et de l'Environnement; Gif-sur-Yvette France
| | - S. Falourd
- l'Institut Pierre-Simon Laplace/Commissariat à l'Energie Atomique; CNRS Laboratoire des Sciences du Climat et de l'Environnement; Gif-sur-Yvette France
| | - J. Jouzel
- l'Institut Pierre-Simon Laplace/Commissariat à l'Energie Atomique; CNRS Laboratoire des Sciences du Climat et de l'Environnement; Gif-sur-Yvette France
| | - S. J. Johnsen
- Niels Bohr Institute; University of Copenhagen; Copenhagen Denmark
| | - D. Dahl-Jensen
- Niels Bohr Institute; University of Copenhagen; Copenhagen Denmark
| | | | - J. W. C. White
- Geological Sciences Department; University of Colorado; Boulder Colorado USA
| | - T. Popp
- Geological Sciences Department; University of Colorado; Boulder Colorado USA
| | - H. Fischer
- Alfred Wegener Institute for Polar and Marine Research; Bremerhaven Germany
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31
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Masson-Delmotte V, Jouzel J, Landais A, Stievenard M, Johnsen SJ, White JWC, Werner M, Sveinbjornsdottir A, Fuhrer K. GRIP Deuterium Excess Reveals Rapid and Orbital-Scale Changes in Greenland Moisture Origin. Science 2005; 309:118-21. [PMID: 15994553 DOI: 10.1126/science.1108575] [Citation(s) in RCA: 246] [Impact Index Per Article: 12.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
The Northern Hemisphere hydrological cycle is a key factor coupling ice sheets, ocean circulation, and polar amplification of climate change. Here we present a Northern Hemisphere deuterium excess profile covering one climatic cycle, constructed with the use of delta18O and deltaD Greenland Ice Core Project (GRIP) records. Past changes in Greenland source and site temperatures are quantified with precipitation seasonality taken into account. The imprint of obliquity is evidenced in the site-to-source temperature gradient at orbital scale. At the millennial time scale, GRIP source temperature changes reflect southward shifts of the geographical locations of moisture sources during cold events, and these rapid shifts are associated with large-scale changes in atmospheric circulation.
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Affiliation(s)
- V Masson-Delmotte
- IPSL/Laboratoire des Sciences du Climat et de l'Environnement (LSCE), UMR CEA-CNRS, CEA Saclay, 91191 Gif-sur-Yvette, France.
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Kurita N, Yoshida N, Inoue G, Chayanova EA. Modern isotope climatology of Russia: A first assessment. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd003404] [Citation(s) in RCA: 90] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Naoyuki Kurita
- Frontier Observational Research System for Global Change; Yokohama, Kanagawa Japan
| | - Naohiro Yoshida
- Interdisciplinary Graduate School of Science and Engineering and Frontier Collaborative Research Center; Tokyo Institute of Technology; Yokohama, Kanagawa Japan
| | - Gen Inoue
- National Institute for Environmental Studies; Tukuba, Ibaraki Japan
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34
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Noone D. Sea ice control of water isotope transport to Antarctica and implications for ice core interpretation. ACTA ACUST UNITED AC 2004. [DOI: 10.1029/2003jd004228] [Citation(s) in RCA: 74] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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35
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Jouzel J. Magnitude of isotope/temperature scaling for interpretation of central Antarctic ice cores. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2002jd002677] [Citation(s) in RCA: 206] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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36
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Yoshimura K. A quantitative analysis of short-term18O variability with a Rayleigh-type isotope circulation model. ACTA ACUST UNITED AC 2003. [DOI: 10.1029/2003jd003477] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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37
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Mathieu R. Simulation of stable water isotope variations by the GENESIS GCM for modern conditions. ACTA ACUST UNITED AC 2002. [DOI: 10.1029/2001jd900255] [Citation(s) in RCA: 88] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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38
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Tian L, Masson-Delmotte V, Stievenard M, Yao T, Jouzel J. Tibetan Plateau summer monsoon northward extent revealed by measurements of water stable isotopes. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2001jd900186] [Citation(s) in RCA: 331] [Impact Index Per Article: 14.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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39
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Stenni B, Masson-Delmotte V, Johnsen S, Jouzel J, Longinelli A, Monnin E, Rothlisberger R, Selmo E. An oceanic cold reversal during the last deglaciation. Science 2001; 293:2074-7. [PMID: 11557889 DOI: 10.1126/science.1059702] [Citation(s) in RCA: 203] [Impact Index Per Article: 8.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
A detailed deuterium excess profile measured along the Dome C EPICA (European Project for Ice Coring in Antarctica) core reveals the timing and strength of the sea surface temperature changes at the source regions for Dome C precipitation. We infer that an Oceanic Cold Reversal took place in the southern Indian Ocean, 800 years after the Antarctic Cold Reversal. The temperature gradient between the oceanic moisture source and Antarctica is similar to the Dome C sodium profile during the deglaciation, illustrating the strong link between this gradient and the strength of the atmospheric circulation.
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Affiliation(s)
- B Stenni
- Department of Geological, Environmental and Marine Sciences, University of Trieste, Trieste, Italy.
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40
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Hoffmann G, Jouzel J, Johnsen S. Deuterium excess record from central Greenland over the last millennium: Hints of a North Atlantic signal during the Little Ice Age. ACTA ACUST UNITED AC 2001. [DOI: 10.1029/2000jd900585] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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41
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Delmotte M, Masson V, Jouzel J, Morgan VI. A seasonal deuterium excess signal at Law Dome, coastal eastern Antarctica: A southern ocean signature. ACTA ACUST UNITED AC 2000. [DOI: 10.1029/1999jd901085] [Citation(s) in RCA: 61] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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42
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Armengaud A, Koster RD, Jouzel J, Ciais P. Deuterium excess in Greenland snow: Analysis with simple and complex models. ACTA ACUST UNITED AC 1998. [DOI: 10.1029/98jd00274] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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43
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Jouzel J, Alley RB, Cuffey KM, Dansgaard W, Grootes P, Hoffmann G, Johnsen SJ, Koster RD, Peel D, Shuman CA, Stievenard M, Stuiver M, White J. Validity of the temperature reconstruction from water isotopes in ice cores. ACTA ACUST UNITED AC 1997. [DOI: 10.1029/97jc01283] [Citation(s) in RCA: 473] [Impact Index Per Article: 17.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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44
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Schwarz G, Kowski P, Gernandt H. Saisonale Variation von Deuterium und Sauerstoff-18 in Luftfeuchte und Niederschlag über Antarktika. ISOTOPES IN ENVIRONMENTAL AND HEALTH STUDIES 1997; 33:159-168. [PMID: 22087493 DOI: 10.1080/10256019708036343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Abstract D and (18)O distributions were investigated in Antarctic precipitation (falling snow) and in water vapour to study their dependance on season and sampling site. Long-term sampling at the former German Georg Forster Station during 1978-93 and at the Japanese Syowa Station during 1994-97 allow conclusions about the present seasonal isotopic variations in the water inflow to Antarctica. The δD and δ(18)O values of precipitation at these East Antarctic coastal stations were compared with corresponding data from the West Antarctic Georg von Neumayer and Halley stations. The monthly means of these long-term data sets show typical hysteresis-like seasonal patterns of isotopic composition. Significant time lags exist regarding station temperatures, while water vapour δD values do not show such hysteresis patterns. Here, half-yearly and even quarter-yearly time components were found by Fourier analysis. Attempts were made to describe the variation in δD and δ(18)O values of water vapour and precipitation as well as in the resulting deuterium excess by the mixed cloud isotopic model (MCIM) of Ciais and Jouzel.
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Affiliation(s)
- G Schwarz
- a Alfred-Wegener-Institut für Polar- und Meeresforschung, Forschungsstelle , Potsdam , Deutschland
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45
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Jouzel J, Koster RD. A reconsideration of the initial conditions used for stable water isotope models. ACTA ACUST UNITED AC 1996. [DOI: 10.1029/96jd02362] [Citation(s) in RCA: 69] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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46
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Ciais P, White JWC, Jouzel J, Petit JR. The origin of present-day Antarctic precipitation from surface snow deuterium excess data. ACTA ACUST UNITED AC 1995. [DOI: 10.1029/95jd01169] [Citation(s) in RCA: 56] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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