Climatic controls on water vapor deuterium excess in the marine boundary layer of the North Atlantic based on 500 days of in situ, continuous measurements
Continuous, in situ measurements of water vapor isotopic composition have been conducted in the North Atlantic, at the Bermuda Islands (32.26° N, 64.88° W), between November 2011 and June 2013, using a cavity ring-down spectrometer water vapor isotope analyzer and an autonomous self-designed calibra...
Ausführliche Beschreibung
Autor*in: |
H. C. Steen-Larsen [verfasserIn] A. E. Sveinbjörnsdottir [verfasserIn] A. J. Peters [verfasserIn] V. Masson-Delmotte [verfasserIn] M. P. Guishard [verfasserIn] G. Hsiao [verfasserIn] J. Jouzel [verfasserIn] D. Noone [verfasserIn] J. K. Warren [verfasserIn] J. W. C. White [verfasserIn] |
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Sprache: |
Englisch |
Erschienen: |
2014 |
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Übergeordnetes Werk: |
In: Atmospheric Chemistry and Physics - Copernicus Publications, 2003, 14(2014), 15, Seite 7741-7756 |
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Übergeordnetes Werk: |
volume:14 ; year:2014 ; number:15 ; pages:7741-7756 |
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Link aufrufen |
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DOI / URN: |
10.5194/acp-14-7741-2014 |
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Katalog-ID: |
DOAJ007307365 |
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520 | |a Continuous, in situ measurements of water vapor isotopic composition have been conducted in the North Atlantic, at the Bermuda Islands (32.26° N, 64.88° W), between November 2011 and June 2013, using a cavity ring-down spectrometer water vapor isotope analyzer and an autonomous self-designed calibration system. Meticulous calibration allows us to reach an accuracy and precision on 10 min average of <i<δ</i<<sup<18</sup<O, <i<δ</i< <i<D</i<, and d-excess of, 0.14, 0.85, and 1.1‰, verified using two parallel instruments with independent calibration. As a result of more than 500 days with 6-hourly data the relationships between deuterium excess, relative humidity (RH), sea surface temperature (SST), wind speed, and wind direction are assessed. From the whole data set, 84 % of d-excess variance is explained by a strong linear relationship with relative humidity. The slope of this relationship (−42.6 ± 0.4‰ % (RH)) is similar to the theoretical prediction of Merlivat and Jouzel (1979) for SST between 20 and 30 °C. However, in contrast with theory, no effect of wind speed could be detected on the relationship between d-excess and relative humidity. Separating the data set into winter, spring, summer, and autumn seasons reveals different linear relationships between d-excess and humidity. Changes in wind directions are observed to affect the relationships between d-excess and humidity. The observed seasonal variability in the relationship between d-excess and relative humidity underlines the importance of long-term monitoring to make accurate conclusions. | ||
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10.5194/acp-14-7741-2014 doi (DE-627)DOAJ007307365 (DE-599)DOAJaa021efe634246fb8af11d29ac59d49e DE-627 ger DE-627 rakwb eng QC1-999 QD1-999 H. C. Steen-Larsen verfasserin aut Climatic controls on water vapor deuterium excess in the marine boundary layer of the North Atlantic based on 500 days of in situ, continuous measurements 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Continuous, in situ measurements of water vapor isotopic composition have been conducted in the North Atlantic, at the Bermuda Islands (32.26° N, 64.88° W), between November 2011 and June 2013, using a cavity ring-down spectrometer water vapor isotope analyzer and an autonomous self-designed calibration system. Meticulous calibration allows us to reach an accuracy and precision on 10 min average of <i<δ</i<<sup<18</sup<O, <i<δ</i< <i<D</i<, and d-excess of, 0.14, 0.85, and 1.1‰, verified using two parallel instruments with independent calibration. As a result of more than 500 days with 6-hourly data the relationships between deuterium excess, relative humidity (RH), sea surface temperature (SST), wind speed, and wind direction are assessed. From the whole data set, 84 % of d-excess variance is explained by a strong linear relationship with relative humidity. The slope of this relationship (−42.6 ± 0.4‰ % (RH)) is similar to the theoretical prediction of Merlivat and Jouzel (1979) for SST between 20 and 30 °C. However, in contrast with theory, no effect of wind speed could be detected on the relationship between d-excess and relative humidity. Separating the data set into winter, spring, summer, and autumn seasons reveals different linear relationships between d-excess and humidity. Changes in wind directions are observed to affect the relationships between d-excess and humidity. The observed seasonal variability in the relationship between d-excess and relative humidity underlines the importance of long-term monitoring to make accurate conclusions. Physics Chemistry A. E. Sveinbjörnsdottir verfasserin aut A. J. Peters verfasserin aut V. Masson-Delmotte verfasserin aut M. P. Guishard verfasserin aut G. Hsiao verfasserin aut J. Jouzel verfasserin aut D. Noone verfasserin aut J. K. Warren verfasserin aut J. W. C. White verfasserin aut In Atmospheric Chemistry and Physics Copernicus Publications, 2003 14(2014), 15, Seite 7741-7756 (DE-627)092499996 16807324 nnns volume:14 year:2014 number:15 pages:7741-7756 https://doi.org/10.5194/acp-14-7741-2014 kostenfrei https://doaj.org/article/aa021efe634246fb8af11d29ac59d49e kostenfrei http://www.atmos-chem-phys.net/14/7741/2014/acp-14-7741-2014.pdf kostenfrei https://doaj.org/toc/1680-7316 Journal toc kostenfrei https://doaj.org/toc/1680-7324 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_381 AR 14 2014 15 7741-7756 |
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10.5194/acp-14-7741-2014 doi (DE-627)DOAJ007307365 (DE-599)DOAJaa021efe634246fb8af11d29ac59d49e DE-627 ger DE-627 rakwb eng QC1-999 QD1-999 H. C. Steen-Larsen verfasserin aut Climatic controls on water vapor deuterium excess in the marine boundary layer of the North Atlantic based on 500 days of in situ, continuous measurements 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Continuous, in situ measurements of water vapor isotopic composition have been conducted in the North Atlantic, at the Bermuda Islands (32.26° N, 64.88° W), between November 2011 and June 2013, using a cavity ring-down spectrometer water vapor isotope analyzer and an autonomous self-designed calibration system. Meticulous calibration allows us to reach an accuracy and precision on 10 min average of <i<δ</i<<sup<18</sup<O, <i<δ</i< <i<D</i<, and d-excess of, 0.14, 0.85, and 1.1‰, verified using two parallel instruments with independent calibration. As a result of more than 500 days with 6-hourly data the relationships between deuterium excess, relative humidity (RH), sea surface temperature (SST), wind speed, and wind direction are assessed. From the whole data set, 84 % of d-excess variance is explained by a strong linear relationship with relative humidity. The slope of this relationship (−42.6 ± 0.4‰ % (RH)) is similar to the theoretical prediction of Merlivat and Jouzel (1979) for SST between 20 and 30 °C. However, in contrast with theory, no effect of wind speed could be detected on the relationship between d-excess and relative humidity. Separating the data set into winter, spring, summer, and autumn seasons reveals different linear relationships between d-excess and humidity. Changes in wind directions are observed to affect the relationships between d-excess and humidity. The observed seasonal variability in the relationship between d-excess and relative humidity underlines the importance of long-term monitoring to make accurate conclusions. Physics Chemistry A. E. Sveinbjörnsdottir verfasserin aut A. J. Peters verfasserin aut V. Masson-Delmotte verfasserin aut M. P. Guishard verfasserin aut G. Hsiao verfasserin aut J. Jouzel verfasserin aut D. Noone verfasserin aut J. K. Warren verfasserin aut J. W. C. White verfasserin aut In Atmospheric Chemistry and Physics Copernicus Publications, 2003 14(2014), 15, Seite 7741-7756 (DE-627)092499996 16807324 nnns volume:14 year:2014 number:15 pages:7741-7756 https://doi.org/10.5194/acp-14-7741-2014 kostenfrei https://doaj.org/article/aa021efe634246fb8af11d29ac59d49e kostenfrei http://www.atmos-chem-phys.net/14/7741/2014/acp-14-7741-2014.pdf kostenfrei https://doaj.org/toc/1680-7316 Journal toc kostenfrei https://doaj.org/toc/1680-7324 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_381 AR 14 2014 15 7741-7756 |
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10.5194/acp-14-7741-2014 doi (DE-627)DOAJ007307365 (DE-599)DOAJaa021efe634246fb8af11d29ac59d49e DE-627 ger DE-627 rakwb eng QC1-999 QD1-999 H. C. Steen-Larsen verfasserin aut Climatic controls on water vapor deuterium excess in the marine boundary layer of the North Atlantic based on 500 days of in situ, continuous measurements 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Continuous, in situ measurements of water vapor isotopic composition have been conducted in the North Atlantic, at the Bermuda Islands (32.26° N, 64.88° W), between November 2011 and June 2013, using a cavity ring-down spectrometer water vapor isotope analyzer and an autonomous self-designed calibration system. Meticulous calibration allows us to reach an accuracy and precision on 10 min average of <i<δ</i<<sup<18</sup<O, <i<δ</i< <i<D</i<, and d-excess of, 0.14, 0.85, and 1.1‰, verified using two parallel instruments with independent calibration. As a result of more than 500 days with 6-hourly data the relationships between deuterium excess, relative humidity (RH), sea surface temperature (SST), wind speed, and wind direction are assessed. From the whole data set, 84 % of d-excess variance is explained by a strong linear relationship with relative humidity. The slope of this relationship (−42.6 ± 0.4‰ % (RH)) is similar to the theoretical prediction of Merlivat and Jouzel (1979) for SST between 20 and 30 °C. However, in contrast with theory, no effect of wind speed could be detected on the relationship between d-excess and relative humidity. Separating the data set into winter, spring, summer, and autumn seasons reveals different linear relationships between d-excess and humidity. Changes in wind directions are observed to affect the relationships between d-excess and humidity. The observed seasonal variability in the relationship between d-excess and relative humidity underlines the importance of long-term monitoring to make accurate conclusions. Physics Chemistry A. E. Sveinbjörnsdottir verfasserin aut A. J. Peters verfasserin aut V. Masson-Delmotte verfasserin aut M. P. Guishard verfasserin aut G. Hsiao verfasserin aut J. Jouzel verfasserin aut D. Noone verfasserin aut J. K. Warren verfasserin aut J. W. C. White verfasserin aut In Atmospheric Chemistry and Physics Copernicus Publications, 2003 14(2014), 15, Seite 7741-7756 (DE-627)092499996 16807324 nnns volume:14 year:2014 number:15 pages:7741-7756 https://doi.org/10.5194/acp-14-7741-2014 kostenfrei https://doaj.org/article/aa021efe634246fb8af11d29ac59d49e kostenfrei http://www.atmos-chem-phys.net/14/7741/2014/acp-14-7741-2014.pdf kostenfrei https://doaj.org/toc/1680-7316 Journal toc kostenfrei https://doaj.org/toc/1680-7324 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_381 AR 14 2014 15 7741-7756 |
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10.5194/acp-14-7741-2014 doi (DE-627)DOAJ007307365 (DE-599)DOAJaa021efe634246fb8af11d29ac59d49e DE-627 ger DE-627 rakwb eng QC1-999 QD1-999 H. C. Steen-Larsen verfasserin aut Climatic controls on water vapor deuterium excess in the marine boundary layer of the North Atlantic based on 500 days of in situ, continuous measurements 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Continuous, in situ measurements of water vapor isotopic composition have been conducted in the North Atlantic, at the Bermuda Islands (32.26° N, 64.88° W), between November 2011 and June 2013, using a cavity ring-down spectrometer water vapor isotope analyzer and an autonomous self-designed calibration system. Meticulous calibration allows us to reach an accuracy and precision on 10 min average of <i<δ</i<<sup<18</sup<O, <i<δ</i< <i<D</i<, and d-excess of, 0.14, 0.85, and 1.1‰, verified using two parallel instruments with independent calibration. As a result of more than 500 days with 6-hourly data the relationships between deuterium excess, relative humidity (RH), sea surface temperature (SST), wind speed, and wind direction are assessed. From the whole data set, 84 % of d-excess variance is explained by a strong linear relationship with relative humidity. The slope of this relationship (−42.6 ± 0.4‰ % (RH)) is similar to the theoretical prediction of Merlivat and Jouzel (1979) for SST between 20 and 30 °C. However, in contrast with theory, no effect of wind speed could be detected on the relationship between d-excess and relative humidity. Separating the data set into winter, spring, summer, and autumn seasons reveals different linear relationships between d-excess and humidity. Changes in wind directions are observed to affect the relationships between d-excess and humidity. The observed seasonal variability in the relationship between d-excess and relative humidity underlines the importance of long-term monitoring to make accurate conclusions. Physics Chemistry A. E. Sveinbjörnsdottir verfasserin aut A. J. Peters verfasserin aut V. Masson-Delmotte verfasserin aut M. P. Guishard verfasserin aut G. Hsiao verfasserin aut J. Jouzel verfasserin aut D. Noone verfasserin aut J. K. Warren verfasserin aut J. W. C. White verfasserin aut In Atmospheric Chemistry and Physics Copernicus Publications, 2003 14(2014), 15, Seite 7741-7756 (DE-627)092499996 16807324 nnns volume:14 year:2014 number:15 pages:7741-7756 https://doi.org/10.5194/acp-14-7741-2014 kostenfrei https://doaj.org/article/aa021efe634246fb8af11d29ac59d49e kostenfrei http://www.atmos-chem-phys.net/14/7741/2014/acp-14-7741-2014.pdf kostenfrei https://doaj.org/toc/1680-7316 Journal toc kostenfrei https://doaj.org/toc/1680-7324 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_381 AR 14 2014 15 7741-7756 |
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10.5194/acp-14-7741-2014 doi (DE-627)DOAJ007307365 (DE-599)DOAJaa021efe634246fb8af11d29ac59d49e DE-627 ger DE-627 rakwb eng QC1-999 QD1-999 H. C. Steen-Larsen verfasserin aut Climatic controls on water vapor deuterium excess in the marine boundary layer of the North Atlantic based on 500 days of in situ, continuous measurements 2014 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Continuous, in situ measurements of water vapor isotopic composition have been conducted in the North Atlantic, at the Bermuda Islands (32.26° N, 64.88° W), between November 2011 and June 2013, using a cavity ring-down spectrometer water vapor isotope analyzer and an autonomous self-designed calibration system. Meticulous calibration allows us to reach an accuracy and precision on 10 min average of <i<δ</i<<sup<18</sup<O, <i<δ</i< <i<D</i<, and d-excess of, 0.14, 0.85, and 1.1‰, verified using two parallel instruments with independent calibration. As a result of more than 500 days with 6-hourly data the relationships between deuterium excess, relative humidity (RH), sea surface temperature (SST), wind speed, and wind direction are assessed. From the whole data set, 84 % of d-excess variance is explained by a strong linear relationship with relative humidity. The slope of this relationship (−42.6 ± 0.4‰ % (RH)) is similar to the theoretical prediction of Merlivat and Jouzel (1979) for SST between 20 and 30 °C. However, in contrast with theory, no effect of wind speed could be detected on the relationship between d-excess and relative humidity. Separating the data set into winter, spring, summer, and autumn seasons reveals different linear relationships between d-excess and humidity. Changes in wind directions are observed to affect the relationships between d-excess and humidity. The observed seasonal variability in the relationship between d-excess and relative humidity underlines the importance of long-term monitoring to make accurate conclusions. Physics Chemistry A. E. Sveinbjörnsdottir verfasserin aut A. J. Peters verfasserin aut V. Masson-Delmotte verfasserin aut M. P. Guishard verfasserin aut G. Hsiao verfasserin aut J. Jouzel verfasserin aut D. Noone verfasserin aut J. K. Warren verfasserin aut J. W. C. White verfasserin aut In Atmospheric Chemistry and Physics Copernicus Publications, 2003 14(2014), 15, Seite 7741-7756 (DE-627)092499996 16807324 nnns volume:14 year:2014 number:15 pages:7741-7756 https://doi.org/10.5194/acp-14-7741-2014 kostenfrei https://doaj.org/article/aa021efe634246fb8af11d29ac59d49e kostenfrei http://www.atmos-chem-phys.net/14/7741/2014/acp-14-7741-2014.pdf kostenfrei https://doaj.org/toc/1680-7316 Journal toc kostenfrei https://doaj.org/toc/1680-7324 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_381 AR 14 2014 15 7741-7756 |
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H. C. Steen-Larsen A. E. Sveinbjörnsdottir A. J. Peters V. Masson-Delmotte M. P. Guishard G. Hsiao J. Jouzel D. Noone J. K. Warren J. W. C. White |
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climatic controls on water vapor deuterium excess in the marine boundary layer of the north atlantic based on 500 days of in situ, continuous measurements |
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Climatic controls on water vapor deuterium excess in the marine boundary layer of the North Atlantic based on 500 days of in situ, continuous measurements |
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Continuous, in situ measurements of water vapor isotopic composition have been conducted in the North Atlantic, at the Bermuda Islands (32.26° N, 64.88° W), between November 2011 and June 2013, using a cavity ring-down spectrometer water vapor isotope analyzer and an autonomous self-designed calibration system. Meticulous calibration allows us to reach an accuracy and precision on 10 min average of <i<δ</i<<sup<18</sup<O, <i<δ</i< <i<D</i<, and d-excess of, 0.14, 0.85, and 1.1‰, verified using two parallel instruments with independent calibration. As a result of more than 500 days with 6-hourly data the relationships between deuterium excess, relative humidity (RH), sea surface temperature (SST), wind speed, and wind direction are assessed. From the whole data set, 84 % of d-excess variance is explained by a strong linear relationship with relative humidity. The slope of this relationship (−42.6 ± 0.4‰ % (RH)) is similar to the theoretical prediction of Merlivat and Jouzel (1979) for SST between 20 and 30 °C. However, in contrast with theory, no effect of wind speed could be detected on the relationship between d-excess and relative humidity. Separating the data set into winter, spring, summer, and autumn seasons reveals different linear relationships between d-excess and humidity. Changes in wind directions are observed to affect the relationships between d-excess and humidity. The observed seasonal variability in the relationship between d-excess and relative humidity underlines the importance of long-term monitoring to make accurate conclusions. |
abstractGer |
Continuous, in situ measurements of water vapor isotopic composition have been conducted in the North Atlantic, at the Bermuda Islands (32.26° N, 64.88° W), between November 2011 and June 2013, using a cavity ring-down spectrometer water vapor isotope analyzer and an autonomous self-designed calibration system. Meticulous calibration allows us to reach an accuracy and precision on 10 min average of <i<δ</i<<sup<18</sup<O, <i<δ</i< <i<D</i<, and d-excess of, 0.14, 0.85, and 1.1‰, verified using two parallel instruments with independent calibration. As a result of more than 500 days with 6-hourly data the relationships between deuterium excess, relative humidity (RH), sea surface temperature (SST), wind speed, and wind direction are assessed. From the whole data set, 84 % of d-excess variance is explained by a strong linear relationship with relative humidity. The slope of this relationship (−42.6 ± 0.4‰ % (RH)) is similar to the theoretical prediction of Merlivat and Jouzel (1979) for SST between 20 and 30 °C. However, in contrast with theory, no effect of wind speed could be detected on the relationship between d-excess and relative humidity. Separating the data set into winter, spring, summer, and autumn seasons reveals different linear relationships between d-excess and humidity. Changes in wind directions are observed to affect the relationships between d-excess and humidity. The observed seasonal variability in the relationship between d-excess and relative humidity underlines the importance of long-term monitoring to make accurate conclusions. |
abstract_unstemmed |
Continuous, in situ measurements of water vapor isotopic composition have been conducted in the North Atlantic, at the Bermuda Islands (32.26° N, 64.88° W), between November 2011 and June 2013, using a cavity ring-down spectrometer water vapor isotope analyzer and an autonomous self-designed calibration system. Meticulous calibration allows us to reach an accuracy and precision on 10 min average of <i<δ</i<<sup<18</sup<O, <i<δ</i< <i<D</i<, and d-excess of, 0.14, 0.85, and 1.1‰, verified using two parallel instruments with independent calibration. As a result of more than 500 days with 6-hourly data the relationships between deuterium excess, relative humidity (RH), sea surface temperature (SST), wind speed, and wind direction are assessed. From the whole data set, 84 % of d-excess variance is explained by a strong linear relationship with relative humidity. The slope of this relationship (−42.6 ± 0.4‰ % (RH)) is similar to the theoretical prediction of Merlivat and Jouzel (1979) for SST between 20 and 30 °C. However, in contrast with theory, no effect of wind speed could be detected on the relationship between d-excess and relative humidity. Separating the data set into winter, spring, summer, and autumn seasons reveals different linear relationships between d-excess and humidity. Changes in wind directions are observed to affect the relationships between d-excess and humidity. The observed seasonal variability in the relationship between d-excess and relative humidity underlines the importance of long-term monitoring to make accurate conclusions. |
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Climatic controls on water vapor deuterium excess in the marine boundary layer of the North Atlantic based on 500 days of in situ, continuous measurements |
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