Atmospheric and Oceanic Science Letters最新文献_第9页

Evaluation of CMIP6 model performance in simulating the PDO and its future change 评估 CMIP6 模式在模拟 PDO 及其未来变化方面的性能

IF 2.3 4区地球科学

Atmospheric and Oceanic Science Letters Pub Date : 2023-12-13 DOI: 10.1016/j.aosl.2023.100449

Yuchun Du , Huopo Chen

{"title":"Evaluation of CMIP6 model performance in simulating the PDO and its future change","authors":"Yuchun Du , Huopo Chen","doi":"10.1016/j.aosl.2023.100449","DOIUrl":"https://doi.org/10.1016/j.aosl.2023.100449","url":null,"abstract":"<div><p>This study comprehensively assesses the model performance in simulating the variation of the Pacific Decadal Oscillation (PDO) in the winter time (November to March) during the historical period of 1870–2014 using 40 models from phase 6 of the Coupled Model Intercomparison Project (CMIP6). Its future change is also investigated under four Shared Socioeconomic Pathway scenarios on the basis of 17 CMIP6 models. Results show that CMIP6 models can reasonably reproduce the observed sea surface temperature anomaly mode associated with the PDO, with high spatial correlation coefficients of above 0.7. However, CMIP6 models generally perform poorly in simulating the variability of the PDO, with low correlation coefficients for most models, except FGOALS-g3 (0.57), GISS-E2-1-H (0.42), and NESM3 (0.37), which present a relatively greater correlation. The multi-model ensemble (MME) outperforms the individual models and can capture the dominant periodicity of the PDO (∼50 years), but it fails to capture the periodicity of ∼20 years. Additionally, the MME result underestimates the variability of the PDO. In response to future warming, the PDO is expected to transfer from a negative to positive phase around the 2050s. The 50-year periodicity of the PDO is projected to decrease compared to the historical period.</p><p>摘要</p><p>本文基于40个CMIP6模式输出结果, 系统评估了模式对历史时期太平洋年代际振荡(PDO)的模拟性能, 并利用其中17个模式的4种共享社会经济路径情景数据预估了PDO未来可能变化趋势. 结果表明, CMIP6模式能够合理再现PDO相关海表温度异常的空间模态, 但模式模拟PDO位相演变的能力普遍较弱. 多模式集合能够合理再现PDO的50年左右周期, 但无法模拟出其20年左右周期, 并且低估了PDO的变化幅度. 在未来变暖情景下, PDO可能在2050左右出现由负位相向正位相的转变, 同时其50年左右周期也将明显缩短.</p></div>","PeriodicalId":47210,"journal":{"name":"Atmospheric and Oceanic Science Letters","volume":"17 3","pages":"Article 100449"},"PeriodicalIF":2.3,"publicationDate":"2023-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S1674283423001484/pdfft?md5=671451919a23f995136bec47e0bb6f1d&pid=1-s2.0-S1674283423001484-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140649689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “A cloud optical and microphysical property product for the advanced geosynchronous radiation imager onboard China's Fengyun-4 satellites: The first version” [Atmospheric and Oceanic Science Letters 16 (2023) 100337] “用于中国风云四号卫星先进地球同步辐射成像仪的云光学和微物理特性产品:第一版”的勘误表[大气与海洋科学快报16 (2023)100337]

4区地球科学

Atmospheric and Oceanic Science Letters Pub Date : 2023-10-01 DOI: 10.1016/j.aosl.2023.100421

Chao Liu, Yuxing Song, Ganning Zhou, Shiwen Teng, Bo Li, Na Xu, Feng Lu, Peng Zhang

引用次数: 0

Impact of the Atlantic multidecadal variability on East Asian summer climate in idealized simulations 理想模拟中大西洋数十年变化对东亚夏季气候的影响

IF 2.3 4区地球科学

Atmospheric and Oceanic Science Letters Pub Date : 2023-09-01 DOI: 10.1016/j.aosl.2023.100399

Dong Si , Liwei Yu

引用次数: 0

Influence of three types of boreal summer intraseasonal oscillation on summer precipitation over the Yangtze River Valley 三种类型的北夏季季节内振荡对长江流域夏季降水的影响

IF 2.3 4区地球科学

Atmospheric and Oceanic Science Letters Pub Date : 2023-09-01 DOI: 10.1016/j.aosl.2023.100394

Xiangyang Cui , Baoyan Zhu , Bo Sun

{"title":"Influence of three types of boreal summer intraseasonal oscillation on summer precipitation over the Yangtze River Valley","authors":"Xiangyang Cui , Baoyan Zhu , Bo Sun","doi":"10.1016/j.aosl.2023.100394","DOIUrl":"10.1016/j.aosl.2023.100394","url":null,"abstract":"<div><p>Previous studies have demonstrated that boreal summer intraseasonal oscillation (BSISO) active in the Indian Ocean can affect precipitation over the Yangtze River Valley (YRV). In this study, the impacts of three types of BSISO modes on precipitation over the YRV were investigated and found to vary significantly. First, moisture budget analysis indicated that the process responsible for the precipitation anomalies in all BSISO modes is moisture convergence, while moisture advection is insignificant. In the canonical mode, precipitation anomalies are negative (positive) at pentad −2 (−1 to 3) owing to a BSISO-related cyclone over the northwestern Pacific (anticyclone moving from the subtropical western to northwestern Pacific) accompanied by enhanced (suppressed) convection propagating northeastward. Comparatively, in the eastward expansion mode, precipitation anomalies are positive (negative) at pentad −2 to 0 (1 to 3) via a BSISO-related anticyclonic (cyclonic) circulation over the northwestern Pacific induced by the teleconnection effect of enhanced (suppressed) convection over the Indian Ocean. Different from the previous two BSISO modes, in the northward dipole mode, precipitation anomalies are negative (positive) at pentad −2 to 0 (1 to 3) owing to a BSISO-related cyclonic (anticyclonic) circulation, which moves from the South China Sea to the northwestern Pacific because of the propagation of enhanced (suppressed) convection.</p></div>","PeriodicalId":47210,"journal":{"name":"Atmospheric and Oceanic Science Letters","volume":"16 5","pages":"Article 100394"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41553683","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Contribution of the tropical sea surface temperature in the Arctic tropospheric warming during 1979–2013 1979–2013年热带海面温度对北极对流层变暖的贡献

IF 2.3 4区地球科学

Atmospheric and Oceanic Science Letters Pub Date : 2023-09-01 DOI: 10.1016/j.aosl.2023.100404

Lingling Suo

引用次数: 0

Can a global mean sea-level rise reduce the Last Interglacial model–data mismatch in East Asia? 全球平均海平面上升能否减少东亚末次间冰期模式数据的不匹配?

IF 2.3 4区地球科学

Atmospheric and Oceanic Science Letters Pub Date : 2023-09-01 DOI: 10.1016/j.aosl.2023.100406

Zhiqi Qian , Tianao Xu , Zhongshi Zhang , Chunju Huang

引用次数: 0

Contribution of external forcing to summer precipitation trends over the Qinghai–Tibet Plateau and Southwest China 外力对青藏高原和西南地区夏季降水趋势的贡献

IF 2.3 4区地球科学

Atmospheric and Oceanic Science Letters Pub Date : 2023-09-01 DOI: 10.1016/j.aosl.2023.100388

Yuying Xiang , Tao Wang , Hongna Xu , Huijun Wang

{"title":"Contribution of external forcing to summer precipitation trends over the Qinghai–Tibet Plateau and Southwest China","authors":"Yuying Xiang , Tao Wang , Hongna Xu , Huijun Wang","doi":"10.1016/j.aosl.2023.100388","DOIUrl":"10.1016/j.aosl.2023.100388","url":null,"abstract":"<div><p>In the past 60 years, the global climate has undergone both rapid warming and a brief warming hiatus, while regional precipitation patterns in China have also experienced diverse and complex changes. Specifically, the factors behind the opposing trends in summer precipitation between two adjacent regions—Southwest China and the Qinghai–Tibet Plateau—are particularly intricate. After evaluating the historical runs from CMIP6 models, the authors assessed the contributions of various external forcing factors that simulated the summer precipitation trends observed over the Qinghai–Tibet Plateau and Southwest China from 1961 to 2014. The findings show that, compared to other forcing factors, greenhouse gases had a significant impact on the increase in summer precipitation over the Qinghai–Tibet Plateau, while aerosols played an important role in the decrease in summer precipitation in Southwest China.</p><p>摘要</p><p>在过去的60年中, 全球气候经历了快速变暖和短暂的变暖停滞, 而中国的区域降水也经历了多样而复杂的变化. 本文分析了1961年至2014年外强迫因子对青藏高原和中国西南地区夏季降水趋势的影响. 观测数据显示, 青藏高原的夏季降水呈增加趋势, 而中国西南地区的夏季降水呈减少趋势, 这两个相邻地区的夏季降水变化趋势相反. 利用CMIP6数据, 本文研究了不同外强迫因子对两个区域夏季降水趋势的影响. 结果表明, 温室气体对青藏高原夏季降水的增加具有显著影响, 而气溶胶在中国西南地区夏季降水减少中起主要作用.</p></div>","PeriodicalId":47210,"journal":{"name":"Atmospheric and Oceanic Science Letters","volume":"16 5","pages":"Article 100388"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49578264","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impacts of the extratropical North Pacific on boreal summer Arctic circulation 温带北太平洋对北极夏季北方环流的影响

IF 2.3 4区地球科学

Atmospheric and Oceanic Science Letters Pub Date : 2023-09-01 DOI: 10.1016/j.aosl.2023.100405

Shengping He , Tore Furevik , Huijun Wang , Fei Li , Mingkeng Duan

{"title":"Impacts of the extratropical North Pacific on boreal summer Arctic circulation","authors":"Shengping He , Tore Furevik , Huijun Wang , Fei Li , Mingkeng Duan","doi":"10.1016/j.aosl.2023.100405","DOIUrl":"10.1016/j.aosl.2023.100405","url":null,"abstract":"<div><p>A distinct characteristic of the Arctic summer atmospheric circulation is the anomalous anticyclonic circulation centered over the Arctic Ocean associated with significant Arctic warming. Previous studies have related the underlying mechanisms to the earlier spring Eurasian snowmelt and the tropical Pacific forcing. Here, the authors show that the Arctic summer anomalous anticyclonic circulation is significantly related to the extratropical North Pacific sea surface temperature anomalies (SSTAs) in spring, indicating a teleconnection from the extratropical North Pacific to the Arctic. The SSTA pattern is characterized by warm anomalies in the midlatitudes of the extratropical North Pacific surrounded by significant cold anomalies, resembling the negative phase of the Pacific Decadal Oscillation (PDO) but without significant signals in the tropics (referred to as the negative PDO-like pattern). This negative PDO-like pattern in May can stimulate a Rossby wave propagating from the Bering Sea to the Arctic and lead to an anomalous Arctic anticyclone which can be sustained during summer. Meanwhile, the negative PDO-like pattern can persist to summer and induce an anomalous surface low pressure over the Bering Sea in summer. This anomalous surface low causes anomalous rising motions and induces upper-level divergence anomalies which further intensify the summer Arctic anticyclone. The upper-level tropospheric Arctic anticyclone can force anomalous adiabatic descent over the Arctic and sub-Arctic, leading to significant adiabatic heating in the Arctic. As a result, a significant warming emerges over the Arctic with the center located in the middle troposphere. The connection between the negative PDO-like SSTAs and the summer Arctic anticyclone has been confirmed by numerical experiments.</p></div>","PeriodicalId":47210,"journal":{"name":"Atmospheric and Oceanic Science Letters","volume":"16 5","pages":"Article 100405"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46979342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Research progress on inter-monthly winter temperature variation in East Asia and climate prediction 东亚冬季气温月际变化及气候预测研究进展

IF 2.3 4区地球科学

Atmospheric and Oceanic Science Letters Pub Date : 2023-09-01 DOI: 10.1016/j.aosl.2023.100372

Ke Fan , Hongqing Yang , Haixia Dai

{"title":"Research progress on inter-monthly winter temperature variation in East Asia and climate prediction","authors":"Ke Fan , Hongqing Yang , Haixia Dai","doi":"10.1016/j.aosl.2023.100372","DOIUrl":"10.1016/j.aosl.2023.100372","url":null,"abstract":"<div><p>Inter-monthly winter temperature variation in East Asia has been remarkable in recent years, showing reversed or alternating extreme cold and extreme warm events in different months or in different stages of the winter. There are many challenges in climate prediction in the winter months because the inter-monthly climate variation is often within the seasonal mean variation. It is therefore urgent to understand the variation of inter-monthly winter temperatures in East Asia, to identify their predictability and predictive sources, and to propose effective prediction methods and prediction models for the inter-monthly winter climate. This paper reviews progress in research during the last five years on the main characteristics, physical processes, mechanisms, predictability, and prediction of inter-monthly winter temperatures in East Asia, considering several related systems including the winter monsoon, Siberian high, and stratospheric polar vortex. The authors also discuss future research prospects.</p><p>摘要</p><p>近年来, 东亚冬季气温的月际间变化十分显著, 冬季不同月份或不同阶段之间极端冷暖事件的转折或交替频发. 由于月际间变化常常被季节平均掩盖, 东亚冬季气候预测面临众多的挑战. 因此, 亟需研究东亚冬季气温月际间变化的特征和机理, 明确其可预测性和预测来源, 进而研制考虑月际变化的东亚冬季气温的有效预测方法和预测模型. 本文回顾了过去5年对东亚冬季气温月际间变化的主要特征, 物理过程, 机制, 可预测性和预测的研究进展, 同时考虑了多个与气温相联系统的变化, 包括冬季风, 西伯利亚高压, 平流层极涡. 本文也进一步讨论了未来的研究前景.</p></div>","PeriodicalId":47210,"journal":{"name":"Atmospheric and Oceanic Science Letters","volume":"16 5","pages":"Article 100372"},"PeriodicalIF":2.3,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47411668","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"地球科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Corrigendum to “Effects of solar radiation modification on the ocean carbon cycle: An earth system modeling study” Atmospheric and Oceanic Science Letter 15 (2022) 100187 “太阳辐射变化对海洋碳循环的影响:地球系统模拟研究”大气与海洋科学通报15 (2022)100187

4区地球科学

Atmospheric and Oceanic Science Letters Pub Date : 2023-09-01 DOI: 10.1016/j.aosl.2023.100418

Xiaoyu Jin, Long Cao, Jingyu Zhang

引用次数: 0