Accuracy and precision when deriving sea-ice thickness from thermistor strings: a comparison of methods
A precise knowledge of landfast sea-ice (fast-ice) thickness is relevant to many different disciplines. Sea Ice Monitoring Stations (SIMS) are used to measure time series of fast-ice thickness at a location. SIMS measure ice and ocean temperature via thermistor strings with many different methods fo...
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Cambridge University Press (CUP)
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Online Access: | http://dx.doi.org/10.1017/jog.2022.108 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143022001083 |
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crcambridgeupr:10.1017/jog.2022.108 2024-05-12T07:53:48+00:00 Accuracy and precision when deriving sea-ice thickness from thermistor strings: a comparison of methods Richter, Maren E. Leonard, Greg H. Smith, Inga J. Langhorne, Pat J. Mahoney, Andrew R. Parry, Matthew 2022 http://dx.doi.org/10.1017/jog.2022.108 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143022001083 en eng Cambridge University Press (CUP) http://creativecommons.org/licenses/by/4.0/ Journal of Glaciology volume 69, issue 276, page 879-898 ISSN 0022-1430 1727-5652 Earth-Surface Processes journal-article 2022 crcambridgeupr https://doi.org/10.1017/jog.2022.108 2024-04-18T06:54:35Z A precise knowledge of landfast sea-ice (fast-ice) thickness is relevant to many different disciplines. Sea Ice Monitoring Stations (SIMS) are used to measure time series of fast-ice thickness at a location. SIMS measure ice and ocean temperature via thermistor strings with many different methods for extracting sea-ice thickness from temperature existing. This study investigates: if thickness results from temperature recorded by SIMS of different designs, and analysed with different methods are comparable; which methods are recommended for their robustness, precision and accuracy and how they compare to independent thickness measurements; how otherwise unuseable data can be salvaged through specific SIMS designs. We present an analysis of fast-ice thickness calculated from SIMS deployed in McMurdo Sound, Antarctica and in the Chukchi Sea near Utqiaġvik, Alaska, over two decades. We find that median thicknesses derived by different methods agree within 1 ± 1.5 cm for McMurdo Sound and 2 ± 3 cm for Utqiaġvik. Thus, it is possible to confidently compare data collected from different stations and analysed with different methods. The vertical gradient of sea-ice temperature gives the best results for fast-ice thickness during the growth season and including standard resistors in a thermistor string can reduce potential data loss due to noise. Article in Journal/Newspaper Antarc* Antarctica Chukchi Chukchi Sea Journal of Glaciology McMurdo Sound Sea ice Alaska Cambridge University Press Chukchi Sea McMurdo Sound Journal of Glaciology 1 20 |
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Cambridge University Press |
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crcambridgeupr |
language |
English |
topic |
Earth-Surface Processes |
spellingShingle |
Earth-Surface Processes Richter, Maren E. Leonard, Greg H. Smith, Inga J. Langhorne, Pat J. Mahoney, Andrew R. Parry, Matthew Accuracy and precision when deriving sea-ice thickness from thermistor strings: a comparison of methods |
topic_facet |
Earth-Surface Processes |
description |
A precise knowledge of landfast sea-ice (fast-ice) thickness is relevant to many different disciplines. Sea Ice Monitoring Stations (SIMS) are used to measure time series of fast-ice thickness at a location. SIMS measure ice and ocean temperature via thermistor strings with many different methods for extracting sea-ice thickness from temperature existing. This study investigates: if thickness results from temperature recorded by SIMS of different designs, and analysed with different methods are comparable; which methods are recommended for their robustness, precision and accuracy and how they compare to independent thickness measurements; how otherwise unuseable data can be salvaged through specific SIMS designs. We present an analysis of fast-ice thickness calculated from SIMS deployed in McMurdo Sound, Antarctica and in the Chukchi Sea near Utqiaġvik, Alaska, over two decades. We find that median thicknesses derived by different methods agree within 1 ± 1.5 cm for McMurdo Sound and 2 ± 3 cm for Utqiaġvik. Thus, it is possible to confidently compare data collected from different stations and analysed with different methods. The vertical gradient of sea-ice temperature gives the best results for fast-ice thickness during the growth season and including standard resistors in a thermistor string can reduce potential data loss due to noise. |
format |
Article in Journal/Newspaper |
author |
Richter, Maren E. Leonard, Greg H. Smith, Inga J. Langhorne, Pat J. Mahoney, Andrew R. Parry, Matthew |
author_facet |
Richter, Maren E. Leonard, Greg H. Smith, Inga J. Langhorne, Pat J. Mahoney, Andrew R. Parry, Matthew |
author_sort |
Richter, Maren E. |
title |
Accuracy and precision when deriving sea-ice thickness from thermistor strings: a comparison of methods |
title_short |
Accuracy and precision when deriving sea-ice thickness from thermistor strings: a comparison of methods |
title_full |
Accuracy and precision when deriving sea-ice thickness from thermistor strings: a comparison of methods |
title_fullStr |
Accuracy and precision when deriving sea-ice thickness from thermistor strings: a comparison of methods |
title_full_unstemmed |
Accuracy and precision when deriving sea-ice thickness from thermistor strings: a comparison of methods |
title_sort |
accuracy and precision when deriving sea-ice thickness from thermistor strings: a comparison of methods |
publisher |
Cambridge University Press (CUP) |
publishDate |
2022 |
url |
http://dx.doi.org/10.1017/jog.2022.108 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0022143022001083 |
geographic |
Chukchi Sea McMurdo Sound |
geographic_facet |
Chukchi Sea McMurdo Sound |
genre |
Antarc* Antarctica Chukchi Chukchi Sea Journal of Glaciology McMurdo Sound Sea ice Alaska |
genre_facet |
Antarc* Antarctica Chukchi Chukchi Sea Journal of Glaciology McMurdo Sound Sea ice Alaska |
op_source |
Journal of Glaciology volume 69, issue 276, page 879-898 ISSN 0022-1430 1727-5652 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1017/jog.2022.108 |
container_title |
Journal of Glaciology |
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1 |
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20 |
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1798844770552905728 |