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Sensitivity of Snowfall Characteristics to Meteorological Conditions in the Yeongdong Region of Korea Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-14 Yoo-Jun Kim, So-Ra In, Hae-Min Kim, Jin-Hwa Lee, Kyu Rang Kim, Seungbum Kim, Byung-Gon Kim
This study investigates the characteristics of cold clouds and snowfall in both the Yeongdong coastal and mountainous regions under different meteorological conditions based on the integration of numerical modeling and three-hourly rawinsonde observations with snow crystal photographs for a snowfall event that occurred on 29–30 January 2016. We found that rimed particles predominantly observed turned
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Determination of Surface Precipitation Type Based on the Data Fusion Approach Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-14 Marek Półrolniczak, Leszek Kolendowicz, Bartosz Czernecki, Mateusz Taszarek, Gabriella Tóth
Hazardous events related to atmospheric precipitation depend not only on the intensity of surface precipitation, but also on its type. Uncertainty related to determination of the precipitation type (PT) leads to financial losses in many areas of human activity, such as the power industry, agriculture, transportation, and many more. In this study, we use machine learning (ML) algorithms with the data
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Skill Assessment of Copernicus Climate Change Service Seasonal Ensemble Precipitation Forecasts over Iran Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-14 Masoud Nobakht, Bahram Saghafian, Saleh Aminyavari
Medium to long-term precipitation forecasting plays a pivotal role in water resource management and development of warning systems. Recently, the Copernicus Climate Change Service (C3S) database has been releasing monthly forecasts for lead times of up to three months for public use. This study evaluated the ensemble forecasts of three C3S models over the period 1993–2017 in Iran’s eight classified
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Intermodel Diversity of Simulated Long-term Changes in the Austral Winter Southern Annular Mode: Role of the Southern Ocean Dipole Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-08 Fei Zheng, Jianping Li, Shuailei Yao
The Southern Annular Mode (SAM) plays an important role in regulating Southern Hemisphere extratropical circulation. State-of-the-art models exhibit intermodel spread in simulating long-term changes in the SAM. Results from Atmospheric Model Intercomparison Project (AMIP) experiments from 28 models archived in CMIP5 show that the intermodel spread in the linear trend in the austral winter (June–July–August)
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Increases in Anthropogenic Heat Release from Energy Consumption Lead to More Frequent Extreme Heat Events in Urban Cities Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-08 Bin Liu, Zhenghui Xie, Peihua Qin, Shuang Liu, Ruichao Li, Longhuan Wang, Yan Wang, Binghao Jia, Si Chen, Jinbo Xie, Chunxiang Shi
With economic development and rapid urbanization, increases in Gross Domestic Product and population in fast-growing cities since the turn of the 21st Century have led to increases in energy consumption. Anthropogenic heat flux released to the near-surface atmosphere has led to changes in urban thermal environments and severe extreme temperature events. To investigate the effects of energy consumption
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Numerical Simulation to Evaluate the Effects of Upward Lightning Discharges on Thunderstorm Electrical Parameters Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-05 Tianxue Zheng, Yongbo Tan, Yiru Wang
A theoretical discussion of the discharge effects of upward lightning simulated with a fine-resolution 2D thunderstorm model is performed in this paper, and the results reveal that the estimates of the total induced charge on the upward lightning discharge channels range from 0.67 to 118.8 C, and the average value is 19.0 C, while the ratio of the induced charge on the leader channels to the total
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Understanding the Soil Temperature Variability at Different Depths: Effects of Surface Air Temperature, Snow Cover, and the Soil Memory Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-05 Haoxin Zhang, Naiming Yuan, Zhuguo Ma, Yu Huang
The soil temperature (ST) is closely related to the surface air temperature (AT), but their coupling may be affected by other factors. In this study, significant effects of the AT on the underlying ST were found, and the time taken to propagate downward to 320 cm can be up to 10 months. Besides the AT, the ST is also affected by memory effects—namely, its prior thermal conditions. At deeper depth (i
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Assessment of Snow Depth over Arctic Sea Ice in CMIP6 Models Using Satellite Data Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-05 Shengzhe Chen, Jiping Liu, Yifan Ding, Yuanyuan Zhang, Xiao Cheng, Yongyun Hu
Snow depth over sea ice is an essential variable for understanding the Arctic energy budget. In this study, we evaluate snow depth over Arctic sea ice during 1993–2014 simulated by 31 models from phase 6 of the Coupled Model Intercomparison Project (CMIP6) against recent satellite retrievals. The CMIP6 models capture some aspects of the observed snow depth climatology and variability. The observed
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Western North Pacific Tropical Cyclone Database Created by the China Meteorological Administration Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-05 Xiaoqin Lu, Hui Yu, Ming Ying, Bingke Zhao, Shuai Zhang, Limin Lin, Lina Bai, Rijin Wan
This paper describes the access to, and the content, characteristics, and potential applications of the tropical cyclone (TC) database that is maintained and actively developed by the China Meteorological Administration, with the aim of facilitating its use in scientific research and operational services. This database records data relating to all TCs that have passed through the western North Pacific
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Phase Two of the Integrative Monsoon Frontal Rainfall Experiment (IMFRE-II) over the Middle and Lower Reaches of the Yangtze River in 2020 Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-05 Chunguang Cui, Xiquan Dong, Bin Wang, Hao Yang
Phase Two of the Integrative Monsoon Frontal Rainfall Experiment (IMFRE-II) was conducted over the middle and lower reaches of the Yangtze River during the period 16 June to 19 July 2020. This paper provides a brief overview of the IMFRE-II field campaign, including the multiple ground-based remote sensors, aircraft probes, and their corresponding measurements during the 2020 mei-yu period, as well
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Future Precipitation Extremes in China under Climate Change and Their Physical Quantification Based on a Regional Climate Model and CMIP5 Model Simulations Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-05 Peihua Qin, Zhenghui Xie, Jing Zou, Shuang Liu, Si Chen
The atmospheric water holding capacity will increase with temperature according to Clausius-Clapeyron scaling and affects precipitation. The rates of change in future precipitation extremes are quantified with changes in surface air temperature. Precipitation extremes in China are determined for the 21st century in six simulations using a regional climate model, RegCM4, and 17 global climate models
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Classification of Northeast China Cold Vortex Activity Paths in Early Summer Based on K-means Clustering and Their Climate Impact Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-05 Yihe Fang, Haishan Chen, Yi Lin, Chunyu Zhao, Yitong Lin, Fang Zhou
The classification of the Northeast China Cold Vortex (NCCV) activity paths is an important way to analyze its characteristics in detail. Based on the daily precipitation data of the northeastern China (NEC) region, and the atmospheric circulation field and temperature field data of ERA-Interim for every six hours, the NCCV processes during the early summer (June) seasons from 1979 to 2018 were objectively
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CAS-ESM2.0 Model Datasets for the CMIP6 Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-04 Jiangbo Jin, He Zhang, Xiao Dong, Hailong Liu, Minghua Zhang, Xin Gao, Juanxiong He, Zhaoyang Chai, Qingcun Zeng, Guangqing Zhou, Zhaohui Lin, Yi Yu, Pengfei Lin, Ruxu Lian, Yongqiang Yu, Mirong Song, Dongling Zhang
The second version of the Chinese Academy of Sciences Earth System Model (CAS-ESM2.0) is participating in the Flux-Anomaly-Forced Model Intercomparison Project (FAFMIP) experiments in phase 6 of the Coupled Model Intercomparison Project (CMIP6). The purpose of FAFMIP is to understand and reduce the uncertainty of ocean climate changes in response to increased CO2 forcing in atmosphere-ocean general
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Growing Operational Use of FY-3 Data in the ECMWF System Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-04 Niels Bormann, David Duncan, Stephen English, Sean Healy, Katrin Lonitz, Keyi Chen, Heather Lawrence, Qifeng Lu
This paper reviews the data quality and impact of observations from the FY-3 satellite series used operationally in the ECMWF system. This includes data from the passive microwave radiometers MWHS-1, MWHS-2 and MWRI, as well as observations from the radio occultation receiver GNOS. Evaluations against background equivalents show that the quality of the observations is broadly comparable to that of
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NUIST ESM v3 Data Submission to CMIP6 Adv. Atmos. Sci. (IF 2.583) Pub Date : 2021-01-04 Jian Cao, Libin Ma, Fei Liu, Jing Chai, Haikun Zhao, Qiong He, Bo Wang, Yan Bao, Juan Li, Young-min Yang, Hua Deng, Bin Wang
This paper introduces the experimental designs and outputs of the Diagnostic, Evaluation and Characterization of Klima (DECK), historical, Scenario Model Intercomparison Project (MIP), and Paleoclimate MIP (PMIP) experiments from the Nanjing University of Information Science and Technology Earth System Model version 3 (NESM3). Results show that NESM3 reasonably simulates the modern climate and the
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Variations in Wave Energy and Amplitudes along the Energy Dispersion Paths of Nonstationary Barotropic Rossby Waves Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Yaokun Li, Jiping Chao, Yanyan Kang
The variations in the wave energy and the amplitude along the energy dispersion paths of the barotropic Rossby waves in zonally symmetric basic flow are studied by solving the wave energy equation, which expresses that the wave energy variability is determined by the divergence of the group velocity and the energy budget from the basic flow. The results suggest that both the wave energy and the amplitude
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Influence of the Eastern Pacific and Central Pacific Types of ENSO on the South Asian Summer Monsoon Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Fangxing Fan, Renping Lin, Xianghui Fang, Feng Xue, Fei Zheng, Jiang Zhu
Based on observational and reanalysis data, the relationships between the eastern Pacific (EP) and central Pacific (CP) types of El Niño-Southern Oscillation (ENSO) during the developing summer and the South Asian summer monsoon (SASM) are examined. The roles of these two types of ENSO on the SASM experienced notable multidecadal modulation in the late 1970s. While the inverse relationship between
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Precipitation Microphysical Processes in the Inner Rainband of Tropical Cyclone Kajiki (2019) over the South China Sea Revealed by Polarimetric Radar Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Hepeng Zheng, Yun Zhang, Lifeng Zhang, Hengchi Lei, Zuhang Wu
Polarimetric radar and 2D video disdrometer observations provide new insights into the precipitation microphysical processes and characteristics in the inner rainband of tropical cyclone (TC) Kajiki (2019) in the South China Sea for the first time. The precipitation of Kajiki is dominated by high concentrations and small (< 3 mm) raindrops, which contribute more than 98% to the total precipitation
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Seasonal Forecast of South China Sea Summer Monsoon Onset Disturbed by Cold Tongue La Niña in the Past Decade Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Ning Jiang, Congwen Zhu
It has been suggested that a warm (cold) ENSO event in winter is mostly followed by a late (early) onset of the South China Sea (SCS) summer monsoon (SCSSM) in spring. Our results show this positive relationship, which is mainly determined by their phase correlation, has been broken under recent rapid global warming since 2011, due to the disturbance of cold tongue (CT) La Niña events. Different from
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Evaluation of Arctic Sea-ice Cover and Thickness Simulated by MITgcm Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Fei Zheng, Yue Sun, Qinghua Yang, Longjiang Mu
A regional Arctic Ocean configuration of the Massachusetts Institute of Technology General Circulation Model (MITgcm) is applied to simulate the Arctic sea ice from 1991 to 2012. The simulations are evaluated by comparing them with observations from different sources. The results show that MITgcm can reproduce the interannual and seasonal variability of the sea-ice extent, but underestimates the trend
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From China’s Heavy Precipitation in 2020 to a “Glocal” Hydrometeorological Solution for Flood Risk Prediction Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Huan Wu, Xiaomeng Li, Guy J.-P. Schumann, Lorenzo Alfieri, Yun Chen, Hui Xu, Zhifang Wu, Hong Lu, Yamin Hu, Qiang Zhu, Zhijun Huang, Weitian Chen, Ying Hu
The prolonged mei-yu/baiu system with anomalous precipitation in the year 2020 has swollen many rivers and lakes, caused flash flooding, urban flooding and landslides, and consistently wreaked havoc across large swathes of China, particularly in the Yangtze River basin. Significant precipitation and flooding anomalies have already been seen in magnitude and extension so far this year, which have been
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A New TanSat XCO 2 Global Product towards Climate Studies Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Dongxu Yang, Yi Liu, Hartmut Boesch, Lu Yao, Antonio Di Noia, Zhaonan Cai, Naimeng Lu, Daren Lyu, Maohua Wang, Jing Wang, Zengshan Yin, Yuquan Zheng
The 1st Chinese carbon dioxide (CO2) monitoring satellite mission, TanSat, was launched in 2016. The 1st TanSat global map of CO2 dry-air mixing ratio (XCO2) measurements over land was released as version 1 data product with an accuracy of 2.11 ppmv (parts per million by volume). In this paper, we introduce a new (version 2) TanSat global XCO2 product that is approached by the Institute of Atmospheric
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Assimilation of Doppler Radar Data with an Ensemble 3DEnVar Approach to Improve Convective Forecasting Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Shibo Gao, Haiqiu Yu, Chuanyou Ren, Limin Liu, Jinzhong Min
An ensemble three-dimensional ensemble-variational (3DEnVar) data assimilation (E3DA) system was developed within the Weather Research and Forecasting model’s 3DVar framework to assimilate radar data to improve convective forecasting. In this system, ensemble perturbations are updated by an ensemble of 3DEnVar and the ensemble forecasts are used to generate the flow-dependent background error covariance
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Extensive Cold-Precipitation-Freezing Events in Southern China and Their Circulation Characteristics Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Jing-Bei Peng, Cholaw Bueh, Zuo-Wei Xie
Concurrence of low temperature, precipitation and freezing weather in an extensive area would cause devastating impacts on local economy and society. We call such a combination of concurrent disastrous weather “extensive cold-precipitation-freezing” events (ECPFEs). In this study, the ECPFEs in southern China (15°–35°N, 102°–123°E) are objectively defined by using daily surface observational data for
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Profiles and Source Apportionment of Nonmethane Volatile Organic Compounds in Winter and Summer in Xi’an, China, based on the Hybrid Environmental Receptor Model Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Jian Sun, Zhenxing Shen, Yue Zhang, Wenting Dai, Kun He, Hongmei Xu, Zhou Zhang, Long Cui, Xuxiang Li, Yu Huang, Junji Cao
Summer and winter campaigns for the chemical compositions and sources of nonmethane hydrocarbons (NMHCs) and oxygenated volatile organic compounds (OVOCs) were conducted in Xi’an. Data from 57 photochemical assessment monitoring stations for NMHCs and 20 OVOC species were analyzed. Significant seasonal differences were noted for total VOC (TVOC, NMHCs and OVOCs) concentrations and compositions. The
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High-resolution Simulation of an Extreme Heavy Rainfall Event in Shanghai Using the Weather Research and Forecasting Model: Sensitivity to Planetary Boundary Layer Parameterization Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Rui Wang, Yiting Zhu, Fengxue Qiao, Xin-Zhong Liang, Han Zhang, Yang Ding
In this study, an extreme rainfall event that occurred on 25 May 2018 over Shanghai and its nearby area was simulated using the Weather Research and Forecasting model, with a focus on the effects of planetary boundary layer (PBL) physics using double nesting with large grid ratios (15:1 and 9:1). The sensitivity of the precipitation forecast was examined through three PBL schemes: the Yonsei University
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Improvement of Soil Moisture Simulation in Eurasia by the Beijing Climate Center Climate System Model from CMIP5 to CMIP6 Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Yinghan Sang, Hong-Li Ren, Xueli Shi, Xiaofeng Xu, Haishan Chen
This study provides a comprehensive evaluation of historical surface soil moisture simulation (1979–2012) over Eurasia at annual and seasonal time scales between two medium-resolution versions of the Beijing Climate Center Climate System Model (BCC-CSM)—one that is currently participating in phase 6 of the Coupled Model Intercomparison Project (CMIP6), i.e., BCC-CSM2-MR, and the other, BCC-CSM1.1m
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The CMIP6 Historical Simulation Datasets Produced by the Climate System Model CAMS-CSM Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-23 Xinyao Rong, Jian Li, Haoming Chen, Jingzhi Su, Lijuan Hua, Zhengqiu Zhang, Yufei Xin
This paper describes the historical simulations produced by the Chinese Academy of Meteorological Sciences (CAMS) climate system model (CAMS-CSM), which are contributing to phase 6 of the Coupled Model Intercomparison Project (CMIP6). The model description, experiment design and model outputs are presented. Three members’ historical experiments are conducted by CAMS-CSM, with two members starting from
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Water Vapor Retrievals from Near-infrared Channels of the Advanced Medium Resolution Spectral Imager Instrument onboard the Fengyun-3D Satellite Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-12-22 Ling Wang, Xiuqing Hu, Na Xu, Lin Chen
Water vapor plays a key role in weather, climate and environmental research on local and global scales. Knowledge about atmospheric water vapor and its spatiotemporal variability is essential for climate and weather research. Because of the advantage of a unique temporal and spatial resolution, satellite observations provide global or regional water vapor distributions. The advanced Medium Resolution
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Datasets for the CMIP6 Scenario Model Intercomparison Project (ScenarioMIP) Simulations with the Coupled Model CAS FGOALS-f3-L Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-11-21 Shuwen Zhao, Yongqiang Yu, Pengfei Lin, Hailong Liu, Bian He, Qing Bao, Yuyang Guo, Lijuan Hua, Kangjun Chen, Xiaowei Wang
The datasets for the tier-1 Scenario Model Intercomparison Project (ScenarioMIP) experiments from the Chinese Academy of Sciences (CAS) Flexible Global Ocean-Atmosphere-Land System model, finite-volume version 3 (CAS FGOALS-f3-L) are described in this study. ScenarioMIP is one of the core MIP experiments in phase 6 of the Coupled Model Intercomparison Project (CMIP6). Considering future CO2, CH4, N2O
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Surface Temperature Changes Projected by FGOALS Models under Low Warming Scenarios in CMIP5 and CMIP6 Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-11-19 Shang-Min Long, Kai-Ming Hu, Gen Li, Gang Huang, Xia Qu
To meet the low warming targets proposed in the 2015 Paris Agreement, substantial reduction in carbon emissions is needed in the future. It is important to know how surface climates respond under low warming targets. The present study investigates the surface temperature changes under the low-forcing scenario of Representative Concentration Pathways (RCP2.6) and its updated version (Shared Socioeconomic
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CAS-ESM2.0 Model Datasets for the CMIP6 Ocean Model Intercomparison Project Phase 1 (OMIP1) Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-11-19 Xiao Dong, Jiangbo Jin, Hailong Liu, He Zhang, Minghua Zhang, Pengfei Lin, Qingcun Zeng, Guangqing Zhou, Yongqiang Yu, Mirong Song, Zhaohui Lin, Ruxu Lian, Xin Gao, Juanxiong He, Dongling Zhang, Kangjun Chen
As a member of the Chinese modeling groups, the coupled ocean-ice component of the Chinese Academy of Sciences’ Earth System Model, version 2.0 (CAS-ESM2.0), is taking part in the Ocean Model Intercomparison Project Phase 1 (OMIP1) experiment of phase 6 of the Coupled Model Intercomparison Project (CMIP6). The simulation was conducted, and monthly outputs have been published on the ESGF (Earth System
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Spatial and Temporal Distributions of Atmospheric CO 2 in East China Based on Data from Three Satellites Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-11-17 Bozhen Li, Gen Zhang, Lingjun Xia, Ping Kong, Mingjin Zhan, Rui Su
East China (23.6°–38.4°N, 113.6°–122.9°E) is the largest developed region in China. Based on CO2 products retrieved from the Greenhouse Gases Observing Satellite (GOSAT), the spatial and temporal distributions of CO2 mixing ratios in East China during 2014–17 are discussed, and the retrieved CO2 from AIRS (Atmospheric Infrared Sounder) and OCO-2 (Orbiting Carbon Observatory-2), as well as WLG (Waliguan)
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Modulation of Madden-Julian Oscillation Activity by the Tropical Pacific-Indian Ocean Associated Mode Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-11-17 Lifeng Li, Xin Li, Xiong Chen, Chongyin Li, Jianqi Zhang, Yulong Shan
In this study, the impacts of the tropical Pacific-Indian Ocean associated mode (PIOAM) on Madden-Julian Oscillation (MJO) activity were investigated using reanalysis data. In the positive (negative) phase of the PIOAM, the amplitudes of MJO zonal wind and outgoing longwave radiation are significantly weakened (enhanced) over the Indian Ocean, while they are enhanced (weakened) over the central and
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Attribution of Persistent Precipitation in the Yangtze-Huaihe River Basin during February 2019 Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-11-17 Zhixuan Wang, Jilin Sun, Jiancheng Wu, Fangyue Ning, Weiqi Chen
In February 2019, a month-long persistent precipitation event occurred in the Yangtze-Huaihe River basin. The geopotential height field that affected the duration of this frontal rainfall was divided into a high-latitude part and a low-latitude part for analysis. In the high-latitude part, a two-wave structure led to quasi-stationary circulation, and the change of both the blocking high pressure and
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Observed Long- and Short-lived North Atlantic Oscillation Events: Role of the Stratosphere Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-11-17 Jie Song, Jingjing Zhao
Utilizing three different sets of reanalysis data, this study examines the long- and short-lived observed positive North Atlantic Oscillation (NAO) events (referred to as NAO+_LE and NAO+_SE) and long- and short-lived observed negative NAO events (referred to as NAO−_LE and NAO−_SE). Composite results indicate that the NAO-like circulation anomalies associated with the long-lived NAO events can reach
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Optical, Radiative and Chemical Characteristics of Aerosol in Changsha City, Central China Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-11-17 Xiaoyan Wu, Jinyuan Xin, Wenyu Zhang, Chongshui Gong, Yining Ma, Yongjing Ma, Tianxue Wen, Zirui Liu, Shili Tian, Yuesi Wang, Fangkun Wu
Industrial pollution has a significant effect on aerosol properties in Changsha City, a typical city of central China. Therefore, year-round measurements of aerosol optical, radiative and chemical properties from 2012 to 2014 at an urban site in Changsha were analyzed. During the observation period, the energy structure was continuously optimized, which was characterized by the reduction of coal combustion
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Statistical Modeling with a Hidden Markov Tree and High-resolution Interpolation for Spaceborne Radar Reflectivity in the Wavelet Domain Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-11-17 Leilei Kou, Yinfeng Jiang, Aijun Chen, Zhenhui Wang
With the increasing availability of precipitation radar data from space, enhancement of the resolution of spaceborne precipitation observations is important, particularly for hazard prediction and climate modeling at local scales relevant to extreme precipitation intensities and gradients. In this paper, the statistical characteristics of radar precipitation reflectivity data are studied and modeled
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Simulated Relationship between Wintertime ENSO and East Asian Summer Rainfall: From CMIP3 to CMIP6 Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-30 Yuanhai Fu, Zhongda Lin, Tao Wang
El Niño-Southern Oscillation (ENSO) events have a strong influence on East Asian summer rainfall (EASR). This paper investigates the simulated ENSO-EASR relationship in CMIP6 models and compares the results with those in CMIP3 and CMIP5 models. In general, the CMIP6 models show almost no appreciable progress in representing the ENSO-EASR relationship compared with the CMIP5 models. The correlation
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Comparison of Ozone and PM 2.5 Concentrations over Urban, Suburban, and Background Sites in China Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-16 Lan Gao, Xu Yue, Xiaoyan Meng, Li Du, Yadong Lei, Chenguang Tian, Liang Qiu
Surface ozone (O3) and fine particulate matter (PM2.5) are dominant air pollutants in China. Concentrations of these pollutants can show significant differences between urban and nonurban areas. However, such contrast has never been explored on the country level. This study investigates the spatiotemporal characteristics of urban-to-suburban and urban-to-background difference for O3 (Δ[O3]) and PM2
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Erratum to: An Examination of the Predictability of Tropical Cyclone Genesis in High-Resolution Coupled Models with Dynamically Downscaled Coupled Data Assimilation Initialization Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Mingkui Li, Shaoqing Zhang, Lixin Wu, Xiaopei Lin, Ping Chang, Gohkan Danabasoglu, Zhiqiang Wei, Xiaolin Yu, Huiqin Hu, Xiaohui Ma, Weiwei Ma, Haoran Zhao, Dongning Jia, Xin Liu, Kai Mao, Youwei Ma, Yingjing Jiang, Xue Wang, Guangliang Liu, Yuhu Chen
In the figure legends of Fig. 8, the solid-dot and dashed lines should be switched over. The correct figure is shown below. We apologize for that.
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Erratum to: Could the Recent Taal Volcano Eruption Trigger an El Niño and Lead to Eurasian Warming? Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Fei Liu, Chen Xing, Jinbao Li, Bin Wang, Jing Chai, Chaochao Gao, Gang Huang, Jian Liu, Deliang Chen
In the third column of the five row of Table 1, “120.4°W” should be “20.4°E”.
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Combined Impacts of Warm Central Equatorial Pacific Sea Surface Temperatures and Anthropogenic Warming on the 2019 Severe Drought in East China Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Shuangmei Ma, Congwen Zhu, Juan Liu
A severe drought occurred in East China (EC) from August to October 2019 against a background of long-term significant warming and caused widespread impacts on agriculture and society, emphasizing the urgent need to understand the mechanism responsible for this drought and its linkage to global warming. Our results show that the warm central equatorial Pacific (CEP) sea surface temperature (SST) and
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Impacts of Increased SST Resolution on the North Pacific Storm Track in ERA-Interim Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Chao Zhang, Hailong Liu, Jinbo Xie, Chongyin Li, Pengfei Lin
This study examines the artificial influence of increasing the SST resolution on the storm track over the North Pacific in ERA-Interim. Along with the mesoscale oceanic eddies and fronts resolved during the high-resolution-SST period, the low-level storm track strengthens northward, reaching more than 30% of the maximum values in the low-resolution-SST period after removing the influence of ENSO. The
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System of Multigrid Nonlinear Least-squares Four-dimensional Variational Data Assimilation for Numerical Weather Prediction (SNAP): System Formulation and Preliminary Evaluation Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Hongqin Zhang, Xiangjun Tian, Wei Cheng, Lipeng Jiang
A new forecasting system—the System of Multigrid Nonlinear Least-squares Four-dimensional Variational (NLS-4DVar) Data Assimilation for Numerical Weather Prediction (SNAP)—was established by building upon the multigrid NLS-4DVar data assimilation scheme, the operational Gridpoint Statistical Interpolation (GSI)-based data-processing and observation operators, and the widely used Weather Research and
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Application and Characteristic Analysis of the Moist Singular Vector in GRAPES-GEPS Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Jing Wang, Bin Wang, Juanjuan Liu, Yongzhu Liu, Jing Chen, Zhenhua Huo
The singular vector (SV) initial perturbation method can capture the fastest-growing initial perturbation in a tangent linear model (TLM). Based on the global tangent linear and adjoint model of GRAPES-GEPS (Global/Regional Assimilation and Prediction System—Global Ensemble Prediction System), some experiments were carried out to analyze the structure of the moist SVs from the perspectives of the energy
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Contribution of Global Warming and Atmospheric Circulation to the Hottest Spring in Eastern China in 2018 Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Chunhui Lu, Ying Sun, Nikolaos Christidis, Peter A. Stott
The spring of 2018 was the hottest on record since 1951 over eastern China based on station observations, being 2.5°C higher than the 1961–90 mean and with more than 900 stations reaching the record spring mean temperature. This event exerted serious impacts in the region on agriculture, plant phenology, electricity transmission systems, and human health. In this paper, the contributions of human-induced
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Azimuthal Variations of the Convective-scale Structure in a Simulated Tropical Cyclone Principal Rainband Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Yue Jiang, Liguang Wu, Haikun Zhao, Xingyang Zhou, Qingyuan Liu
Previous numerical simulations have focused mainly on the mesoscale structure of the principal rainband in tropical cyclones with a relatively coarse model resolution. In this study, the principal rainband was simulated in a semi-idealized experiment at a horizontal grid spacing of 1/9 km and its convective-scale structure was examined by comparing the convective elements of the simulated principal
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Establishment of an Objective Standard for the Definition of Binary Tropical Cyclones in the Western North Pacific Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Fumin Ren, Yanjun Xie, Biwen Yin, Mingyang Wang, Guoping Li
To develop an objective standard for defining binary tropical cyclones (BTCs) in the western North Pacific (WNP), two best-track datasets, from the China Meteorological Administration and the Joint Typhoon Warning Center, were adopted for statistical analyses on two important characteristics of BTCs—two TCs approaching each other, and counterclockwise spinning. Based on the high consistency between
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Characteristics of Fengyun-4A Satellite Atmospheric Motion Vectors and Their Impacts on Data Assimilation Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Yaodeng Chen, Jie Shen, Shuiyong Fan, Deming Meng, Cheng Wang
The high observation efficiency, scanning speed and observation frequency of the Fengyun-4A (FY-4A) satellite indicates the progress of Chinese geostationary meteorological satellites. The characteristics of FY-4A atmospheric motion vectors (AMVs) derived from the high-level water vapor (WV-High) channel, mid-level water vapor (WV-Mid) channel, and infrared (IR) channel of FY-4A are analyzed, and their
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Upper- and Lower-tropospheric Circulation Anomalies Associated with Interannual Variation of Pakistan Rainfall during Summer Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Riyu Lu, Saadia Hina, Xiaowei Hong
This study investigated the large-scale circulation anomalies, in both the upper and lower troposphere, associated with the interannual variation of rainfall in Pakistan during summer, using the station observation data in this country and circulation data of the NCEP-NCAR reanalysis from 1981 to 2017. Results showed that the upper- and lower-tropospheric circulation anomalies associated with monthly
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Bias Correction and Ensemble Projections of Temperature Changes over Ten Subregions in CORDEX East Asia Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-10-09 Chenwei Shen, Qingyun Duan, Chiyuan Miao, Chang Xing, Xuewei Fan, Yi Wu, Jingya Han
Regional climate models (RCMs) participating in the Coordinated Regional Downscaling Experiment (CORDEX) have been widely used for providing detailed climate change information for specific regions under different emissions scenarios. This study assesses the effects of three common bias correction methods and two multi-model averaging methods in calibrating historical (1980–2005) temperature simulations
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Opposing Trends of Winter Cold Extremes over Eastern Eurasia and North America under Recent Arctic Warming Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-09-30 Shuangmei Ma, Congwen Zhu
Under recent Arctic warming, boreal winters have witnessed severe cold surges over both Eurasia and North America, bringing about serious social and economic impacts. Here, we investigated the changes in daily surface air temperature (SAT) variability during the rapid Arctic warming period of 1988/89–2015/16, and found the daily SAT variance, mainly contributed by the sub-seasonal component, shows
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Sources of Subseasonal Prediction Skill for Heatwaves over the Yangtze River Basin Revealed from Three S2S Models Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-09-30 Jiehong Xie, Jinhua Yu, Haishan Chen, Pang-Chi Hsu
Based on the reforecast data (1999–2010) of three operational models [the China Meteorological Administration (CMA), the National Centers for Environmental Prediction of the U.S. (NCEP) and the European Centre for Medium-Range Weather Forecasts (ECMWF)] that participated in the Subseasonal to Seasonal Prediction (S2S) project, we identified the major sources of subseasonal prediction skill for heatwaves
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Fidelity of the APHRODITE Dataset in Representing Extreme Precipitation over Central Asia Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-09-22 Sheng Lai, Zuowei Xie, Cholaw Bueh, Yuanfa Gong
Using rain-gauge-observation daily precipitation data from the Global Historical Climatology Network (V3.25) and the Chinese Surface Daily Climate Dataset (V3.0), this study investigates the fidelity of the AHPRODITE dataset in representing extreme precipitation, in terms of the extreme precipitation threshold value, occurrence number, probability of detection, and extremal dependence index during
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Eddy-resolving Simulation of CAS-LICOM3 for Phase 2 of the Ocean Model Intercomparison Project Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-08-25 Yiwen Li, Hailong Liu, Mengrong Ding, Pengfei Lin, Zipeng Yu, Yongqiang Yu, Yao Meng, Yunlong Li, Xiaodong Jian, Jinrong Jiang, Kangjun Chen, Qian Yang, Yaqi Wang, Bowen Zhao, Jilin Wei, Jinfeng Ma, Weipeng Zheng, Pengfei Wang
A 61-year (1958–2018) global eddy-resolving dataset for phase 2 of the Ocean Model Intercomparison Project has been produced by the version 3 of Chinese Academy of Science, the State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics/Institute of Atmospheric Physics (LASG/IAP) Climate system Ocean Model (CAS-LICOM3). The monthly and a part of the surface daily
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Differences between CMIP6 and CMIP5 Models in Simulating Climate over China and the East Asian Monsoon Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-08-17 Dabang Jiang, Dan Hu, Zhiping Tian, Xianmei Lang
We compare the ability of coupled global climate models from the phases 5 and 6 of the Coupled Model Intercomparison Project (CMIP5 and CMIP6, respectively) in simulating the temperature and precipitation climatology and interannual variability over China for the period 1961\2-2005 and the climatological East Asian monsoon for the period 1979–2005. All 92 models are able to simulate the geographical
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Insights into the Microwave Instruments Onboard the Feng-Yun 3D Satellite: Data Quality and Assimilation in the Met Office NWP System Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-08-15 Fabien Carminati, Nigel Atkinson, Brett Candy, Qifeng Lu
This paper evaluates the microwave instruments onboard the latest Chinese polar-orbiting satellite, Feng-Yun 3D (FY-3D). Comparing three months of observations from the Microwave Temperature Sounder 2 (MWTS-2), the Microwave Humidity Sounder 2 (MWHS-2), and the Microwave Radiation Imager (MWRI) to Met Office short-range forecasts, we characterize the instrumental biases, show how those biases have
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Analysis of Short-term Cloud Feedback in East Asia Using Cloud Radiative Kernels Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-08-13 Fei Wang, Hua Zhang, Qi Chen, Min Zhao, Ting You
Cloud radiative kernels were built by BCC_RAD (Beijing Climate Center radiative transfer model) radiative transfer code. Then, short-term cloud feedback and its mechanisms in East Asia (0.5°S–60.5°N, 69.5°–150.5°E) were analyzed quantitatively using the kernels combined with MODIS satellite data from July 2002 to June 2018. According to the surface and monsoon types, four subregions in East Asia—the
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Comparison of Ten Potential Evapotranspiration Models and Their Attribution Analyses for Ten Chinese Drainage Basins Adv. Atmos. Sci. (IF 2.583) Pub Date : 2020-08-13 Ruiheng Xie, Aihui Wang
Potential evapotranspiration (EPET) is usually calculated by empirical methods from surface meteorological variables, such as temperature, radiation and wind speed. The in-situ measured pan evaporation (ETpan) can also be used as a proxy for EPET. In this study, EPET values computed from ten models are compared with observed ETpan data in ten Chinese river basins for the period 1961–2013. The daily
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