Influence of climate warming on the strength characteristics of ice in the Ob Bay

IF 0.7 Q4 GEOSCIENCES, MULTIDISCIPLINARY

Led i Sneg-Ice and Snow Pub Date : 2019-12-01 DOI:10.15356/2076-6734-2019-4-409

O. M. Andreev, D. Drabenko, R. A. Vinogradov, E. Orlova

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引用次数: 1

Abstract

The article presents results of investigation of the climate warming effects in the northern polar region of the Earth, in particular on some characteristics of ice in the northern part of the Ob Bay (the area of the most active economic activity of the Russian Federation in the last decade). It is determined that over the past 40 years, morphometric and strength characteristics of ice have significantly changed. Estimates of ice thickness obtained using simple empirical formulas (depending on the sum of the degree-days of frost) show that the ice thickness decreased here by an average of 10 15%. The strength characteristics of ice were analyzed for two periods: the maximum strength of ice (for this area it is March) and the maximum development of ice thickness (usually it is May). It was found that the strength properties of ice (bending and compression) for both periods decreased by 10-12%. Thus, in recent decades, under the influence of climate warming in the Ob Bay, the thickness and strength of the ice cover have significantly decreased. This circumstance will be favorable for further development of the considered water area by Russian oil and gas companies.

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气候变暖对鄂毕湾冰强度特征的影响

本文介绍了对地球北极地区气候变暖效应的调查结果，特别是对鄂毕湾北部(俄罗斯联邦过去十年来经济活动最活跃的地区)冰的一些特征的调查结果。在过去的40年里，冰的形态特征和强度特征发生了显著变化。使用简单经验公式(取决于霜冻日数的总和)获得的冰厚估计表明，这里的冰厚平均减少了10.15%。分析了两个时期冰的强度特征:最大冰强度时期(本区为3月)和最大冰厚发展时期(一般为5月)。结果表明，两期冰的强度性能(弯曲和压缩)均下降了10-12%。因此，近几十年来，在气候变暖的影响下，鄂毕湾冰盖的厚度和强度明显下降。这种情况将有利于俄罗斯石油和天然气公司进一步开发考虑的水域。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Led i Sneg-Ice and Snow GEOSCIENCES, MULTIDISCIPLINARY-

CiteScore

1.50

自引率

42.90%

发文量

审稿时长

8 weeks

期刊介绍： The journal was established with the aim of publishing new research results of the Earth cryosphere. Results of works in physics, mechanics, geophysics, and geochemistry of snow and ice are published here together with geographical aspects of the snow-ice phenomena occurrence in their interaction with other components of the environment. The challenge was to discuss the latest results of investigations carried out on Russia’s territory and works performed by Russian investigators together with foreign colleagues. Editorial board works in collaboration with Glaciological Association that is professional community of specialists in glaciology from all republics of the Former Soviet Union which are now new independent states. The journal serves as a platform for the presentation and discussion of new discoveries and results which help to elucidate the state of the Earth’s cryosphere and the characteristics of the evolution of the snow-ice processes and phenomena under the current conditions of rapid climate change.