On a relationship between air temperature and oxygen isotope ratio of snow and firn in the south pole region

Aldaz, Luis; Deutsch, Sarah

doi:10.1016/0012-821x(67)90047-7

Cited by 65 publications

(51 citation statements)

References 14 publications

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“…Aldaz and Deutsch (1967) already sampled fresh snow for isotope analysis in 1964/65 at the South Pole, without measuring precipitation amounts. Additionally, they used radiosonde data to determine the lifting condensation level to be able to relate the temperature at this level to the stable isotope ratios of precipitation.…”

Section: Synoptic Analysesmentioning

confidence: 99%

Precipitation regime and stable isotopes at Dome Fuji, East Antarctica

Dittmann¹,

Schlosser²,

Masson‐Delmotte³

et al. 2016

Atmos. Chem. Phys.

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Abstract. A unique set of 1-year precipitation and stable water isotope measurements from the Japanese Antarctic station, Dome Fuji, has been used to study the impact of the synoptic situation and the precipitation origin on the isotopic composition of precipitation on the Antarctic Plateau. The Antarctic Mesoscale Prediction System (AMPS) archive data are used to analyse the synoptic situations that cause precipitation. These situations are investigated and divided into five categories. The most common weather situation during a precipitation event is an upper-level ridge that extends onto the Antarctic Plateau and causes strong northerly advection from the ocean. Most precipitation events are associated with an increase in temperature and wind speed, and a local maximum of δ 18 O. During the measurement period, 21 synoptically caused precipitation events caused 60 % of the total annual precipitation, whereas the remaining 40 % were predominantly attributed to diamond dust. By combining the synoptic analyses with 5-day back-trajectories, the moisture source regions for precipitation events were estimated. An average source region around a latitude of 55 • S was found. The atmospheric conditions in the source region were used as initial conditions for running a Rayleigh-type isotopic model in order to reproduce the measured isotopic composition of fresh snow and to investigate the influence of the precipitation source region on the isotope ratios. The model represents the measured annual cycle of δ 18 O and the second-order isotopic parameter deuterium excess reasonably well, but yields on average too little fractionation along the transport/cooling path. While simulations with an isotopic general circulation model (GCM) (ECHAM5-wiso) for Dome Fuji are on average closer to the observations, this model cannot reproduce the annual cycle of deuterium excess. In the event-based analysis, no evidence of a correlation of the measured deuterium excess with the latitude of the moisture source region or the corresponding conditions was identified. Contrary to the assumption used for decades in ice core studies, a more northerly moisture source does not necessarily mean a larger temperature difference between source area and deposition site, thus a more depleted precipitation in heavy isotopes with a higher deuterium excess.

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Section: Synoptic Analysesmentioning

confidence: 99%

Precipitation regime and stable isotopes at Dome Fuji, East Antarctica

Dittmann¹,

Schlosser²,

Masson‐Delmotte³

et al. 2016

Atmos. Chem. Phys.

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“…The mean oxygen isotope ratio is plotted as a function of the IQ m temperature in Figure 2; for comparison mean lines are plotted through data reported by Dansgaard and others (1973) for East Antarctic stations and by Lorius and Merlivat (1977) for another part of East Antarctica. In addition a mean line is plotted through data collected at Amundsen-Scott South Pole station (Aldaz and Deutsch, 1967) t 10 m temperature in absence of melting calculated from Martin and Peel (1978).…”

Section: Meanmentioning

confidence: 99%

Oxygen-Isotope and Total Beta-Radioactivity Measurements on 10 m Ice Cores from the Antarctic Peninsula

Peel

Clausen

1982

J. Glaciol.

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ABSTRACT. A s part of the Glaciology of the Antarctic Penin sul a (GAP) programme, the snow cover at 25 stations was samp led to 10 m depth for oxygen -isoto pe and total tJ-radioactivity analysis. The mean annual oxygen -isotope ratio correlates sat isfactoril y with 10 m te mperature despite the complex topograph y of the area and suggest s o n average th at climatic trends in the region a re fa irly system a tic . The relation ship with temperature is si mil a r to th a t derived from a simple model in which an air mass initiall y of maritime subtropic a l characteristics is progressively cooled as it moves toward s the region. The detailed isoto pe profiles show th a t for future deep drilling the most easi ly interpretable climatic information will be found in th e more continenta l areas--o n the east coast and on the plateau in the so uth of the regio n. The degree of continentali ty of particular sites is reflected in th e amp litu de of the an nu al wave in the upper portion of the isotope-ratio profil e as well as in the accumulation rate. R I':SUMI'O. Mesures de i'isolope de i'oxygi'l1e el de la radio-aclivile bela IOlale sur des carolles de g lace de 10 m provenal7l de i'A l1farclicPeninsula. Dans le cad re du program me " Glaciology of the Antarctic Pen in sul a (GAP)"'. o n a pn'!leve des ec ha ntillon s de neigejusqu 'a 10 m de profondeur dans le manteau nei geux de 25 stations pour a nalyser la teneu r en isotope de I'oxygene et la p -radi oacti vi te totale. La teneur moyenne a nnuell e en isotope de I'oxygene est li ce de maniere sa tisfai sa nte avec la te mpera ture sur 10 m en de pit de la topographie complexe de la zo ne et te nd a faire pen ser qu 'en moyenne les tend a nces c1imatiques dans la region sont bien regulieres. La relation avec la temperature est semblable it celle deduite d'un modele simple dans lequel un e masse d'ai r it caracteristiques initiales subtro pi cales maritimes es t progressivement refroid ie a u cours de son m o uve ment vers cette region. Le profi l detai ll e de la teneur en isotope montre que, po ur les futurs sond ages profonds. les info rm atio ns c lim at iq ues les plus facile s it interpreter se trollvero nt dans les zo nes les plu s continentales-sur la cote est et sur le plateau au sud de la region. Le degre de con tinenta lite de sites particuliers se reflete dans I" ampli tllde de la poussee an nuell e de la partie superieu re du profil dll tau x d 'isotope. com me dans le ni veau de I" acc umlllation.ZUSAMMENFASSUNG. Messung del' SauerslojJ-/ solope ulld der Gesaml-Belaradioakliviliil in 10 m langen Eisbohrk el'l1en aus de,. AntarClic Peninsula. Al s T ei l des Programmes " Glaciology of the Ant a rctic Peninsul a (GA P)"' wurden Pro ben der Schneedecke bis 10 m Tiefe zur Analyse der SauerstofT-lsotope und der Gesamt-tJRadioaktivitiit a n 25 Stationen gewo nnen. Das mittlere j a hrliche SauerstofT-l sotopenverhiiltni s stimmt trotz der komplizicrten Topographie des Gebietes befriedigend mit der Temperatur in 10 m Tiefe iiberein und lasst vermu ten. ...

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“…7). The lower bound of the atomic-weight interval corresponds to oxygen in Antarctic precipitation [45], and the upper bound corresponds to oxygen in marine N 2 O [46]. The previous standard atomic-weight value A r (O) = 15.9994(3), recommended in 1969 [47], was a Commission decision to expand the uncertainty so that oxygen in most natural terrestrial occurrences would be included in its standard atomic weight.…”

Section: Oxygenmentioning

confidence: 99%

Atomic weights of the elements 2009 (IUPAC Technical Report)

Wieser

Coplen

2010

Pure and Applied Chemistry

244

151

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Abstract:The biennial review of atomic-weight determinations and other cognate data has resulted in changes for the standard atomic weights of 11 elements. Many atomic weights are not constants of nature, but depend upon the physical, chemical, and nuclear history of the material. The standard atomic weights of 10 elements having two or more stable isotopes have been changed to reflect this variability of atomic-weight values in natural terrestrial materials. To emphasize the fact that these standard atomic weights are not constants of nature, each atomic-weight value is expressed as an interval. The interval is used together with the symbol [a; b] to denote the set of atomic-weight values, A r (E), of element E in normal materials for which a ≤ A r (E) ≤ b. [204.382; 204.385] from 204.3833(2). This fundamental change in the presentation of the atomic weights represents an important advance in our knowledge of the natural world and underscores the significance and contributions of chemistry to the wellbeing of humankind in the International Year of Chemistry 2011. The standard atomic weight of germanium, A r (Ge), was also changed to 72.63(1) from 72.64(1).

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On a relationship between air temperature and oxygen isotope ratio of snow and firn in the south pole region

Cited by 65 publications

References 14 publications

Precipitation regime and stable isotopes at Dome Fuji, East Antarctica

Precipitation regime and stable isotopes at Dome Fuji, East Antarctica

Oxygen-Isotope and Total Beta-Radioactivity Measurements on 10 m Ice Cores from the Antarctic Peninsula

Atomic weights of the elements 2009 (IUPAC Technical Report)

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