Abstract
Marine heatwaves (MHWs) are prolonged high-temperature extreme events in the ocean that can be devastating to marine life and seriously impact climate systems and economies. This paper describes the accessibility, content, characteristics, and potential applications of an MHW dataset to facilitate its use in scientific research. Daily intensities of global MHWs from 1982 to 2020 were analyzed using gridded SST data sourced from the National Oceanic and Atmospheric Administration (NOAA) Optimum Interpolation (OI) SST V2 high-resolution (0.25°) dataset. The analysis shows a linear increase in the frequency of MHWs in most ocean regions of the world as well as significant interdecadal changes. This data product can be used as a basic dataset to study the seasonal to decadal changes in extreme ocean events and explore the effects of global warming on the surface layers of oceans during the last 40 years.
摘 要
海洋热浪(MHW)是海洋中持续的高温极端事件,会对海洋生物的生存等造成毁灭性影响,并严重影响气候系统和社会经济。本文介绍了全球高分辨率海洋热浪数据库的建立、内容、潜在应用。该数据库是基于NOAA日平均海表温度OISST_V2观测资料,通过改进对海洋热浪关键特征参数的定义,进而建立了1982-2020年全球0.25度海洋热浪日数据。该数据集明确体现了海洋热浪的爆发频次在全球大多数海域显著增长,并具有年际-年代际变化特征。该数据产品可为研究近40年来海洋极端事件季节至年代际变化、探索全球变暖对海洋表层影响提供基础数据。
Data availability statement and sharing policy. The data that support the findings of this study are openly available in the Science Data Bank at https://www.scidb.cn/en/s/nqauYn (doi: https://doi.org/10.11922/sciencedb.00872). Users are encouraged to download and share the datasets. All the datasets are free.
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Acknowledgements
This work was supported by the Key Research Program of Frontier Sciences, CAS (Grant No. ZDBS-LY-DQC010), the National Natural Science Foundation of China (Grant No. 41876012), the Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDB42000000), and the National Key R&D Program of China 2018YFB0505000. NOAA High-Resolution SST data were provided by the NOAA/OAR/ESRL PSD, Boulder, Colorado, USA, from their Web site at http://www.esrl.noaa.gov/psd/. The authors wish to thank two anonymous reviewers for their very helpful comments and suggestions.
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Zhang, X., Zheng, F., Zhu, J. et al. Observed Frequent Occurrences of Marine Heatwaves in Most Ocean Regions during the Last Two Decades. Adv. Atmos. Sci. 39, 1579–1587 (2022). https://doi.org/10.1007/s00376-022-1291-3
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DOI: https://doi.org/10.1007/s00376-022-1291-3
Key words
- marine heatwave
- daily intensity
- linear trend
- climate extremes
关键词
- 海洋热浪
- 日强度
- 线性趋势
- 极端气候