Show simple item record

dc.contributor.authorFischer, P.
dc.contributor.authorDietrich, P.
dc.contributor.authorAchterberg, E.P.
dc.contributor.authorAnselm, N.
dc.contributor.authorAnselm, N.
dc.contributor.authorBrix, H.
dc.contributor.authorBussmann, I.
dc.contributor.authorEickelmann, L.
dc.contributor.authorFlöser, G.
dc.contributor.authorFriedrich, M.
dc.contributor.authorRust, H.
dc.contributor.authorSchütze, C.
dc.contributor.authorKoedel, U.
dc.coverage.spatialArctic Regionen_US
dc.coverage.spatialPolar Regionen_US
dc.coverage.spatialKongsfjordenen_US
dc.date.accessioned2022-03-31T21:04:30Z
dc.date.available2022-03-31T21:04:30Z
dc.date.issued2021
dc.identifier.citationFischer, P., Dietrich, P., Achterberg, E.P., et al (2021) Effects of Measuring Devices and Sampling Strategies on the Interpretation of Monitoring Data for Long-Term Trend Analysis. Frontiers in Marine Science, 8:77097, 18pp. DOI: 10.3389/fmars.2021.770977en_US
dc.identifier.urihttps://repository.oceanbestpractices.org/handle/11329/1909
dc.description.abstractA thorough and reliable assessment of changes in sea surface water temperatures (SSWTs) is essential for understanding the effects of global warming on long-term trends in marine ecosystems and their communities. The first long-term temperature measurements were established almost a century ago, especially in coastal areas, and some of them are still in operation. However, while in earlier times these measurements were done by hand every day, current environmental long-term observation stations (ELTOS) are often fully automated and integrated in cabled underwater observatories (UWOs). With this new technology, year-round measurements became feasible even in remote or difficult to access areas, such as coastal areas of the Arctic Ocean in winter, where measurements were almost impossible just a decade ago. In this context, there is a question over what extent the sampling frequency and accuracy influence results in long-term monitoring approaches. In this paper, we address this with a combination of lab experiments on sensor accuracy and precision and a simulated sampling program with different sampling frequencies based on a continuous water temperature dataset from Svalbard, Arctic, from 2012 to 2017. Our laboratory experiments showed that temperature measurements with 12 different temperature sensor types at different price ranges all provided measurements accurate enough to resolve temperature changes over years on a level discussed in the literature when addressing climate change effects in coastal waters. However, the experiments also revealed that some sensors are more suitable for measuring absolute temperature changes over time, while others are more suitable for determining relative temperature changes. Our simulated sampling program in Svalbard coastal waters over 5 years revealed that the selection of a proper sampling frequency is most relevant for discriminating significant long-term temperature changes from random daily, seasonal, or interannual fluctuations. While hourly and daily sampling could deliver reliable, stable, and comparable results concerning temperature increases over time, weekly sampling was less able to reliably detect overall significant trends. With even lower sampling frequencies (monthly sampling), no significant temperature trend over time could be detected. Although the results were obtained for a specific site, they are transferable to other aquatic research questions and non-polar regions.en_US
dc.language.isoenen_US
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subject.otherSensor selectionen_US
dc.subject.otherSampling schemeen_US
dc.subject.otherEnvironmental monitoringen_US
dc.subject.otherPrecisionen_US
dc.subject.otherAccuracyen_US
dc.titleEffects of Measuring Devices and Sampling Strategies on the Interpretation of Monitoring Data for Long-Term Trend Analysis.en_US
dc.typeJournal Contributionen_US
dc.description.refereedRefereeden_US
dc.format.pagerange18pp.en_US
dc.identifier.doihttps://doi.org/10.3389/fmars.2021.770977
dc.subject.parameterDisciplineWater column temperature and salinityen_US
dc.subject.dmProcessesData acquisitionen_US
dc.bibliographicCitation.titleFrontiers in Marine Scienceen_US
dc.bibliographicCitation.volume8en_US
dc.bibliographicCitation.issueArticle 770977en_US
dc.description.sdg14.aen_US
dc.description.eovN/Aen_US
dc.description.adoptionNationalen_US
dc.description.methodologyTypeReports with methodological relevanceen_US
obps.contact.contactnamePhilipp Fischer
obps.contact.contactemailphilipp.fischer@awi.de
obps.resourceurl.publisherhttps://www.frontiersin.org/articles/10.3389/fmars.2021.770977/


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Attribution 4.0 International
Except where otherwise noted, this item's license is described as Attribution 4.0 International