Rescuing historical weather observations improves quantification of severe windstorm risks
Rescuing historical weather observations improves quantification of severe windstorm risks
复制标题
拯救历史天气观测结果可提高严重风暴风险的量化
DOI:
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发表时间:
2023
影响因子:
4.6
通讯作者:
Joanne Williams
中科院分区:
文献类型:
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作者:
E. Hawkins;P. Brohan;S. Burgess;S. Burt;G. Compo;S. Gray;I. Haigh;H. Hersbach;Kiki Kuijjer;O. Martínez‐Alvarado;C. McColl;A. Schurer;L. Slivinski;Joanne Williams
Abstract. Billions of historical climatological observations remain
unavailable to science as they exist only on paper, stored in numerous
archives around the world. The conversion of these data from paper to
digital could transform our understanding of historical climate variations,
including extreme weather events. Here we demonstrate how the rescue of such
paper observations has improved our understanding of a severe windstorm that
occurred in February 1903 and its significant impacts. By assimilating newly
rescued atmospheric pressure observations, the storm is now credibly
represented in an improved reanalysis of the event. In some locations this
storm produced stronger winds than any event during the modern period
(1950–2015) and it is in the top-4 storms for strongest winds anywhere over
land in England and Wales. As a result, estimates of risk from severe
storms, based on modern period data, may need to be revised. Examining the
atmospheric structure of the storm suggests that it is a classic
Shapiro–Keyser-type cyclone with “sting-jet” precursors and associated
extreme winds at locations and times of known significant damage. Comparison
with both independent observations and qualitative information, such as
photographs and written accounts, provides additional evidence of the
credibility of the atmospheric reconstruction, including sub-daily
rainfall variations. Simulations of the storm surge resulting from this
storm show a large coastal surge of around 2.5 m, comparing favourably with
newly rescued tide gauge observations and adding to our confidence in the
reconstruction. Combining historical rescued weather observations with
modern reanalysis techniques has allowed us to plausibly reconstruct a
severe windstorm and associated storm surge from more than 100 years ago,
establishing an invaluable end-to-end tool to improve assessments of risks
from extreme weather.
影响因子:
8.9
作者:
Clark P
通讯作者:
Clark P
影响因子:
4.6
作者:
Roberts J
通讯作者:
Roberts J