Water stable isotope record of ice core NEEM (early Holocene) measured discretely
A new technique for on-line high resolution isotopic analysis of liquid water, tailored for ice core studies is presented. We built an interface between a Wavelength Scanned Cavity Ring Down Spectrometer (WS-CRDS) purchased from Picarro Inc. and a Continuous Flow Analysis (CFA) system. The system of...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.886042 2023-05-15T16:30:37+02:00 Water stable isotope record of ice core NEEM (early Holocene) measured discretely Gkinis, Vasileios Popp, Trevor Blunier, Thomas Bigler, Matthias Schüpbach, Simon Kettner, E Johnsen, Sigfús Jóhann LATITUDE: 77.450000 * LONGITUDE: -51.060000 * DATE/TIME START: 2009-05-01T00:00:00 * DATE/TIME END: 2009-08-20T00:00:00 * MINIMUM DEPTH, ice/snow: 1379.95 m * MAXIMUM DEPTH, ice/snow: 1391.45 m 2018-02-07 text/tab-separated-values, 462 data points https://doi.pangaea.de/10.1594/PANGAEA.886042 https://doi.org/10.1594/PANGAEA.886042 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.886042 https://doi.org/10.1594/PANGAEA.886042 CC-BY-NC-ND-3.0: Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY-NC-ND Supplement to: Gkinis, Vasileios; Popp, Trevor; Blunier, Thomas; Bigler, Matthias; Schüpbach, Simon; Kettner, E; Johnsen, Sigfús Jóhann (2011): Water isotopic ratios from a continuously melted ice core sample. Atmospheric Measurement Techniques, 4(11), 2531-2542, https://doi.org/10.5194/amt-4-2531-2011 DEPTH ice/snow Greenland ICEDRILL Ice drill NEEM δ18O water δ Deuterium Dataset 2018 ftpangaea https://doi.org/10.1594/PANGAEA.886042 https://doi.org/10.5194/amt-4-2531-2011 2023-01-20T09:10:22Z A new technique for on-line high resolution isotopic analysis of liquid water, tailored for ice core studies is presented. We built an interface between a Wavelength Scanned Cavity Ring Down Spectrometer (WS-CRDS) purchased from Picarro Inc. and a Continuous Flow Analysis (CFA) system. The system offers the possibility to perform simultaneuous water isotopic analysis of d18O and dD on a continuous stream of liquid water as generated from a continuously melted ice rod. Injection of sub µl amounts of liquid water is achieved by pumping sample through a fused silica capillary and instantaneously vaporizing it with 100% efficiency in a~home made oven at a temperature of 170 °C. A calibration procedure allows for proper reporting of the data on the VSMOW-SLAP scale. We apply the necessary corrections based on the assessed performance of the system regarding instrumental drifts and dependance on the water concentration in the optical cavity. The melt rates are monitored in order to assign a depth scale to the measured isotopic profiles. Application of spectral methods yields the combined uncertainty of the system at below 0.1 per mil and 0.5 per mil for d18O and dD, respectively. This performance is comparable to that achieved with mass spectrometry. Dispersion of the sample in the transfer lines limits the temporal resolution of the technique. In this work we investigate and assess these dispersion effects. By using an optimal filtering method we show how the measured profiles can be corrected for the smoothing effects resulting from the sample dispersion. Considering the significant advantages the technique offers, i.e. simultaneuous measurement of d18O and dD, potentially in combination with chemical components that are traditionally measured on CFA systems, notable reduction on analysis time and power consumption, we consider it as an alternative to traditional isotope ratio mass spectrometry with the possibility to be deployed for field ice core studies. We present data acquired in the field during the 2010 ... Dataset Greenland ice core PANGAEA - Data Publisher for Earth & Environmental Science Greenland ENVELOPE(-51.060000,-51.060000,77.450000,77.450000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
DEPTH ice/snow Greenland ICEDRILL Ice drill NEEM δ18O water δ Deuterium |
spellingShingle |
DEPTH ice/snow Greenland ICEDRILL Ice drill NEEM δ18O water δ Deuterium Gkinis, Vasileios Popp, Trevor Blunier, Thomas Bigler, Matthias Schüpbach, Simon Kettner, E Johnsen, Sigfús Jóhann Water stable isotope record of ice core NEEM (early Holocene) measured discretely |
topic_facet |
DEPTH ice/snow Greenland ICEDRILL Ice drill NEEM δ18O water δ Deuterium |
description |
A new technique for on-line high resolution isotopic analysis of liquid water, tailored for ice core studies is presented. We built an interface between a Wavelength Scanned Cavity Ring Down Spectrometer (WS-CRDS) purchased from Picarro Inc. and a Continuous Flow Analysis (CFA) system. The system offers the possibility to perform simultaneuous water isotopic analysis of d18O and dD on a continuous stream of liquid water as generated from a continuously melted ice rod. Injection of sub µl amounts of liquid water is achieved by pumping sample through a fused silica capillary and instantaneously vaporizing it with 100% efficiency in a~home made oven at a temperature of 170 °C. A calibration procedure allows for proper reporting of the data on the VSMOW-SLAP scale. We apply the necessary corrections based on the assessed performance of the system regarding instrumental drifts and dependance on the water concentration in the optical cavity. The melt rates are monitored in order to assign a depth scale to the measured isotopic profiles. Application of spectral methods yields the combined uncertainty of the system at below 0.1 per mil and 0.5 per mil for d18O and dD, respectively. This performance is comparable to that achieved with mass spectrometry. Dispersion of the sample in the transfer lines limits the temporal resolution of the technique. In this work we investigate and assess these dispersion effects. By using an optimal filtering method we show how the measured profiles can be corrected for the smoothing effects resulting from the sample dispersion. Considering the significant advantages the technique offers, i.e. simultaneuous measurement of d18O and dD, potentially in combination with chemical components that are traditionally measured on CFA systems, notable reduction on analysis time and power consumption, we consider it as an alternative to traditional isotope ratio mass spectrometry with the possibility to be deployed for field ice core studies. We present data acquired in the field during the 2010 ... |
format |
Dataset |
author |
Gkinis, Vasileios Popp, Trevor Blunier, Thomas Bigler, Matthias Schüpbach, Simon Kettner, E Johnsen, Sigfús Jóhann |
author_facet |
Gkinis, Vasileios Popp, Trevor Blunier, Thomas Bigler, Matthias Schüpbach, Simon Kettner, E Johnsen, Sigfús Jóhann |
author_sort |
Gkinis, Vasileios |
title |
Water stable isotope record of ice core NEEM (early Holocene) measured discretely |
title_short |
Water stable isotope record of ice core NEEM (early Holocene) measured discretely |
title_full |
Water stable isotope record of ice core NEEM (early Holocene) measured discretely |
title_fullStr |
Water stable isotope record of ice core NEEM (early Holocene) measured discretely |
title_full_unstemmed |
Water stable isotope record of ice core NEEM (early Holocene) measured discretely |
title_sort |
water stable isotope record of ice core neem (early holocene) measured discretely |
publisher |
PANGAEA |
publishDate |
2018 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.886042 https://doi.org/10.1594/PANGAEA.886042 |
op_coverage |
LATITUDE: 77.450000 * LONGITUDE: -51.060000 * DATE/TIME START: 2009-05-01T00:00:00 * DATE/TIME END: 2009-08-20T00:00:00 * MINIMUM DEPTH, ice/snow: 1379.95 m * MAXIMUM DEPTH, ice/snow: 1391.45 m |
long_lat |
ENVELOPE(-51.060000,-51.060000,77.450000,77.450000) |
geographic |
Greenland |
geographic_facet |
Greenland |
genre |
Greenland ice core |
genre_facet |
Greenland ice core |
op_source |
Supplement to: Gkinis, Vasileios; Popp, Trevor; Blunier, Thomas; Bigler, Matthias; Schüpbach, Simon; Kettner, E; Johnsen, Sigfús Jóhann (2011): Water isotopic ratios from a continuously melted ice core sample. Atmospheric Measurement Techniques, 4(11), 2531-2542, https://doi.org/10.5194/amt-4-2531-2011 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.886042 https://doi.org/10.1594/PANGAEA.886042 |
op_rights |
CC-BY-NC-ND-3.0: Creative Commons Attribution-NonCommercial-NoDerivs 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY-NC-ND |
op_doi |
https://doi.org/10.1594/PANGAEA.886042 https://doi.org/10.5194/amt-4-2531-2011 |
_version_ |
1766020354082340864 |