Näytä suppeat kuvailutiedot

dc.contributor.authorRasmus, Sirpa
dc.contributor.authorKivinen, Sonja
dc.contributor.authorIrannezhad, Masoud
dc.date.accessioned2018-11-06T10:54:21Z
dc.date.available2018-11-06T10:54:21Z
dc.date.issued2018
dc.identifier.citationRasmus, S., Kivinen, S., & Irannezhad, M. (2018). Basal ice formation in snow cover in Northern Finland between 1948 and 2016. <i>Environmental Research Letters</i>, <i>13</i>(11), Article 114009. <a href="https://doi.org/10.1088/1748-9326/aae541" target="_blank">https://doi.org/10.1088/1748-9326/aae541</a>
dc.identifier.otherCONVID_28655974
dc.identifier.otherTUTKAID_79105
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/60116
dc.description.abstractBasal ice formation in the terrestrial snow cover is a common phenomenon in northern circumpolar areas, one having significant impacts on ecosystems, vegetation, animals and human activities. There is limited knowledge on the spatial and temporal occurrence of basal iceformation because of the sparse observation network and challenges involved in detectingformation events.We present a unique dataset on the annual extent of ice formation events in northern Finland between 1948 and 2016 based on reindeer herders’ descriptions of the cold season in their management reports. In extreme years, basal ice can form over wide geographical extents. In approximately half of the herding districts studied, it occurred morefrequently in the period 1983–2016 than in the period 1948–1982. Furthermore, five out of seven of the most extensive basal iceformation events(90th percentile) occurred between 1991 and 2016. The most commonly reported processes related to ice formation were thaw or rain-on-snow events followed byfreezing of the snow cover. Years with extensive basal iceformation were often characterized by above-average October–December air temperatures, air temperature variations around 0 °C and relatively high precipitation. However, basal ice did not occur during all warm and wet early winters, and formation events were generally weakly linked to the large-scale atmospheric teleconnections. Another risk factor for reindeer grazing associated with warm and rainy early winters is the growth of mycotoxinproducing molds below the snow. Approximately 24% of all reported moldformation events co-occurred with basal ice formation. The prevalence and frequency of basal iceformation events can be assessed based on our results. Our work contributes to understanding long-term fluctuations and changes in snow and ice conditions and the impacts of this variability in circumpolar areas.fi
dc.format.mimetypeapplication/pdf
dc.language.isoeng
dc.publisherInstitute of Physics Publishing Ltd.
dc.relation.ispartofseriesEnvironmental Research Letters
dc.rightsCC BY 3.0
dc.subject.otherFennoskandia
dc.subject.otherporot
dc.subject.otherbasal ice
dc.subject.otherclimate change
dc.subject.otherNorthern Fennoscandia
dc.subject.otherpractitioners’ knowledge
dc.subject.othersemi-domesticated reindeer (Rangifer tarandus tarandus)
dc.subject.otherwarm winter events
dc.titleBasal ice formation in snow cover in Northern Finland between 1948 and 2016
dc.typearticle
dc.identifier.urnURN:NBN:fi:jyu-201811024611
dc.contributor.laitosBio- ja ympäristötieteiden laitosfi
dc.contributor.laitosDepartment of Biological and Environmental Scienceen
dc.contributor.oppiaineEkologia ja evoluutiobiologiafi
dc.contributor.oppiaineEcology and Evolutionary Biologyen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.date.updated2018-11-02T10:15:17Z
dc.type.coarhttp://purl.org/coar/resource_type/c_2df8fbb1
dc.description.reviewstatuspeerReviewed
dc.relation.issn1748-9326
dc.relation.numberinseries11
dc.relation.volume13
dc.type.versionpublishedVersion
dc.rights.copyright© 2018 The Authors. Published by IOP Publishing Ltd
dc.rights.accesslevelopenAccessfi
dc.subject.ysojää
dc.subject.ysoilmastonmuutokset
dc.subject.ysolumipeite
dc.format.contentfulltext
jyx.subject.urihttp://www.yso.fi/onto/yso/p682
jyx.subject.urihttp://www.yso.fi/onto/yso/p5729
jyx.subject.urihttp://www.yso.fi/onto/yso/p18848
dc.rights.urlhttps://creativecommons.org/licenses/by/3.0/
dc.relation.doi10.1088/1748-9326/aae541
dc.type.okmA1


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