Valley-floor snowfall in Taylor Valley, Antarctica, from 1995 to 2017: spring, summer and autumn

IF 1.8 4区 地球科学 Q3 ENVIRONMENTAL SCIENCES Antarctic Science Pub Date : 2022-08-01 DOI:10.1017/S0954102022000256
M. Myers, P. Doran, K. Myers
{"title":"Valley-floor snowfall in Taylor Valley, Antarctica, from 1995 to 2017: spring, summer and autumn","authors":"M. Myers, P. Doran, K. Myers","doi":"10.1017/S0954102022000256","DOIUrl":null,"url":null,"abstract":"Abstract We present an analysis of the 20 year snowfall dataset in Taylor Valley and the results of a new snow cover monitoring study. Snowfall has been measured at four sites in Taylor Valley from 1995 to 2017. We focus on valley-floor snowfall when wind does not exceed 5 m s-1, and we exclude winter from our analysis due to poor data quality. Snowfall averaged 11 mm water equivalent (w.e.) from 1995 to 2017 across all stations and ranged from 1 to 58 mm w.e. Standard deviations ranged from 3 to 17 mm w.e., highlighting the strong interannual variability of snowfall in Taylor Valley. During spring and autumn there is a spatial gradient in snowfall such that the coast received twice as much snowfall as more central and inland stations. We identified a changepoint in 2007 from increasing snowfall (3 mm w.e. yr-1) to decreasing snowfall (1 mm w.e. yr-1), which coincides with a shift from decreasing temperature to no detectable temperature trend. Daily camera imagery from 2007 to 2017 augments the snowfall measurements. The camera imagery revealed a near tripling of the average number of days with snow cover from 37 days between 2006 and 2012 to 106 days with snow cover between 2012 and 2017.","PeriodicalId":50972,"journal":{"name":"Antarctic Science","volume":null,"pages":null},"PeriodicalIF":1.8000,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"2","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Antarctic Science","FirstCategoryId":"89","ListUrlMain":"https://doi.org/10.1017/S0954102022000256","RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q3","JCRName":"ENVIRONMENTAL SCIENCES","Score":null,"Total":0}
引用次数: 2

Abstract

Abstract We present an analysis of the 20 year snowfall dataset in Taylor Valley and the results of a new snow cover monitoring study. Snowfall has been measured at four sites in Taylor Valley from 1995 to 2017. We focus on valley-floor snowfall when wind does not exceed 5 m s-1, and we exclude winter from our analysis due to poor data quality. Snowfall averaged 11 mm water equivalent (w.e.) from 1995 to 2017 across all stations and ranged from 1 to 58 mm w.e. Standard deviations ranged from 3 to 17 mm w.e., highlighting the strong interannual variability of snowfall in Taylor Valley. During spring and autumn there is a spatial gradient in snowfall such that the coast received twice as much snowfall as more central and inland stations. We identified a changepoint in 2007 from increasing snowfall (3 mm w.e. yr-1) to decreasing snowfall (1 mm w.e. yr-1), which coincides with a shift from decreasing temperature to no detectable temperature trend. Daily camera imagery from 2007 to 2017 augments the snowfall measurements. The camera imagery revealed a near tripling of the average number of days with snow cover from 37 days between 2006 and 2012 to 106 days with snow cover between 2012 and 2017.
查看原文
分享 分享
微信好友 朋友圈 QQ好友 复制链接
本刊更多论文
1995年至2017年,南极洲泰勒谷的谷底降雪:春季、夏季和秋季
摘要我们对泰勒河谷20年的降雪数据集进行了分析,并给出了一项新的积雪监测研究的结果。从1995年到2017年,泰勒山谷的四个地点都有降雪量。我们关注的是风不超过5米s-1时的谷底降雪,由于数据质量差,我们将冬季排除在分析之外。1995年至2017年,所有站点的平均降雪量为11毫米水当量,范围为1至58毫米水当量。标准偏差为3至17毫米水当量的范围,突出了泰勒谷降雪量的强烈年际变化。在春季和秋季,降雪量存在空间梯度,因此沿海地区的降雪量是中部和内陆地区的两倍。我们在2007年确定了一个变化点,从降雪量增加(每年3毫米)到降雪量减少(每年1毫米),这与从气温下降到没有可检测温度趋势的转变相吻合。2007年至2017年的每日相机图像增强了降雪量的测量。相机图像显示,平均积雪天数从2006年至2012年的37天增加到2012年至2017年的106天,几乎增加了两倍。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
求助全文
约1分钟内获得全文 去求助
来源期刊
Antarctic Science
Antarctic Science 地学-地球科学综合
CiteScore
3.60
自引率
6.20%
发文量
42
审稿时长
3 months
期刊介绍: Antarctic Science provides a truly international forum for the broad spread of studies that increasingly characterise scientific research in the Antarctic. Whilst emphasising interdisciplinary work, the journal publishes papers from environmental management to biodiversity, from volcanoes to icebergs, and from oceanography to the upper atmosphere. No other journal covers such a wide range of Antarctic scientific studies. The journal attracts papers from all countries currently undertaking Antarctic research. It publishes both review and data papers with no limits on length, two-page short notes on technical developments and recent discoveries, and book reviews. These, together with an editorial discussing broader aspects of science, provide a rich and varied mixture of items to interest researchers in all areas of science. There are no page charges, or charges for colour, to authors publishing in the Journal. One issue each year is normally devoted to a specific theme or papers from a major meeting.
期刊最新文献
Response of indicator species to changes in food web and ocean dynamics of the Ross Sea, Antarctica Beyond the ice: exploring Antarctic soils research through spatial and scientometrics analysis Evidence for a floristically diverse rainforest on the Falkland archipelago in the remote South Atlantic during the mid- to late Cenozoic Geochemistry of lake sediments from the South Shetland Islands and James Ross Archipelago, north Antarctic Peninsula Mosses of Cockburn Island plateau, Antarctica
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
现在去查看 取消
×
提示
确定
0
微信
客服QQ
Book学术公众号 扫码关注我们
反馈
×
意见反馈
请填写您的意见或建议
请填写您的手机或邮箱
已复制链接
已复制链接
快去分享给好友吧!
我知道了
×
扫码分享
扫码分享
Book学术官方微信
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术
文献互助 智能选刊 最新文献 互助须知 联系我们:info@booksci.cn
Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。
Copyright © 2023 Book学术 All rights reserved.
ghs 京公网安备 11010802042870号 京ICP备2023020795号-1