Meteorology and Atmospheric Physics最新文献_第4页

Correction: Role of radiation and canopy model in predicting heat waves using WRF over the city of Bhubaneswar, Odisha 更正：利用 WRF 预测奥迪沙邦布巴内斯瓦尔市上空热浪时辐射和冠层模型的作用

IF 2 4区地球科学

Meteorology and Atmospheric Physics Pub Date : 2023-12-30 DOI: 10.1007/s00703-023-01002-y

Alugula Boyaj, R. Nadimpalli, DPranay Reddy, P. Sinha, N. R. Karrevula, K. Osuri, Akhil Srivastava, M. Swain, U. C. Mohanty, Sahidul Islam, A. Kaginalkar

引用次数: 0

Numerical study of the precipitation diurnal variation and its relationship with cloud radiative heating during the Meiyu period in 2020 2020年梅雨期降水日变化及其与云辐射加热关系的数值研究

IF 2 4区地球科学

Meteorology and Atmospheric Physics Pub Date : 2023-11-30 DOI: 10.1007/s00703-023-01000-0

Lu Gao, Qian Huang, Suxiang Yao, Tianle Sun

{"title":"Numerical study of the precipitation diurnal variation and its relationship with cloud radiative heating during the Meiyu period in 2020","authors":"Lu Gao, Qian Huang, Suxiang Yao, Tianle Sun","doi":"10.1007/s00703-023-01000-0","DOIUrl":"https://doi.org/10.1007/s00703-023-01000-0","url":null,"abstract":"Based on hourly rain gauge observation, cloud amount, and radiative fluxes data from the Clouds and the Earth’s Radiant Energy System (CERES) and ECMWF Reanalysis v5 (ERA5) dataset, the precipitation process during the Meiyu period in the middle and lower reaches of the Yangtze River in 2020 was simulated in WRF to reveal the influence of cloud radiative heating process on the diurnal variation of precipitation using multiple cloud microphysical schemes. The statistical evaluation of three microphysical parameterization schemes shows that the two-moment scheme WDM6 is more reasonable than the other two schemes in simulating the precipitation distribution, central intensity, and cloud characteristic distribution. There are significant bimodal characteristics in the diurnal variation of precipitation during the Meiyu period by analyzing the observation data. The numerical experiment accurately simulated the time and magnitude of the early morning peak in the heavy rain area but failed to reproduce the peak in the late afternoon, resulting in a false weak rainfall accumulation. The comparison of simulation results with the observed cloud macroscale and microscale characteristics revealed that the reason for the deviation of precipitation simulation was closely related to the inaccurate description of cloud microphysical quantities. The lack of ice phase cloud droplets led to excessively strong radiative heating rate at 200–500 hPa, resulting in anomalous warming in the mid-upper troposphere. Meanwhile, the cold advection at 850 hPa led to anomalous cooling in the lower troposphere, increasing atmospheric stability and further inhibiting the development of the afternoon thermal convection process.","PeriodicalId":51132,"journal":{"name":"Meteorology and Atmospheric Physics","volume":"1 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-11-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138537943","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

Arctic–midlatitude–tropics interactions in January 2020: linkages to precipitation extremes over Indian region 2020年1月北极-中纬度-热带相互作用:与印度地区极端降水的联系

IF 2 4区地球科学

Meteorology and Atmospheric Physics Pub Date : 2023-11-22 DOI: 10.1007/s00703-023-00998-7

S. D. Sanap, M. Mohapatra, D. R. Pattanaik, S. Sunitha Devi, Satendra Kumar, A. Kashyapi

{"title":"Arctic–midlatitude–tropics interactions in January 2020: linkages to precipitation extremes over Indian region","authors":"S. D. Sanap, M. Mohapatra, D. R. Pattanaik, S. Sunitha Devi, Satendra Kumar, A. Kashyapi","doi":"10.1007/s00703-023-00998-7","DOIUrl":"https://doi.org/10.1007/s00703-023-00998-7","url":null,"abstract":"The prolonged positive phase of the Arctic Oscillation (AO) and associated quasi-stationary equivalent barotropic Euro-Atlantic blocking high (EABH) and the Siberian high (SH) existed during January 2020. The presence of the persistent quasi-stationary barotropic high resulted in higher (lower) than normal surface temperatures in most parts of northern (southern) Eurasia. The large-scale analysis suggests the detouring of the mid-latitudinal westerlies from EABH and the formation of the west–east trough from East Atlantic to Northwest Pacific across North Africa, the Middle East, North India and China. The convergence of the moisture and positive convection anomalies along the region of the trough is perceived from the analysis. In the backdrop of this large-scale circulation anomalies, higher than normal precipitation was received in most of the central and north Indian regions with thunderstorms/hailstorm events. The variations in the AO index (AOI) and EABH were found to be in concurrence with the precipitation anomalies over the Indian region. The detailed analysis of a selected thunderstorm/hailstorm case suggests that the lowering of the 0 °C isotherm due to the intrusion of mid-latitudinal westerlies and the development of atmospheric instability with moisture supply from the adjacent seas facilitated the occurrence of the thunderstorms/Hailstorm events during January 2020.","PeriodicalId":51132,"journal":{"name":"Meteorology and Atmospheric Physics","volume":"63 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138537956","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

Prediction and forecast of surface wind using ML tree-based algorithms 基于ML树算法的地面风预测与预报

IF 2 4区地球科学

Meteorology and Atmospheric Physics Pub Date : 2023-11-20 DOI: 10.1007/s00703-023-00999-6

M. H. ElTaweel, S. C. Alfaro, G. Siour, A. Coman, S. M. Robaa, M. M. Abdel Wahab

{"title":"Prediction and forecast of surface wind using ML tree-based algorithms","authors":"M. H. ElTaweel, S. C. Alfaro, G. Siour, A. Coman, S. M. Robaa, M. M. Abdel Wahab","doi":"10.1007/s00703-023-00999-6","DOIUrl":"https://doi.org/10.1007/s00703-023-00999-6","url":null,"abstract":"This study focuses on the importance of reliable surface wind forecasts for various sectors, particularly energy production. Traditional numerical weather prediction models are facing limitations and increasing complexity, leading to the development of machine learning models as alternatives or supplements. The research consists of two stages. In the first stage, the ERA5 database is used to evaluate the long-term performance of different combinations of features and two tree-based algorithms for predicting surface wind characteristics (speed and direction) in Cairo. The XGBoost algorithm slightly outperforms the Random Forest algorithm, especially when combined with appropriate feature selection. Even three years after the training period, the results remain very good, with an RMSE of 0.59 m/s, rRMSE of 17%, and R2 of 0.84. The second stage assesses the multivariate approach's ability to forecast wind speed evolution at different time horizons (1–12 h) during a week characterized by significant wind dynamics. The forecasts demonstrate excellent agreement with observations at a 1-h time horizon, with an RMSE of 0.35 m/s, rRMSE of 7.6%, and R2 of 0.98, surpassing or comparable to other literature results. However, as the time lag increases, the RMSE (0.86, 1.14, and 1.51 m/s for 3, 6, and 12 h, respectively) and rRMSE (18.7%, 24.8%, and 32.9% for 3, 6, and 12 h, respectively) also increase, while R2 decreases (0.86, 0.79, and 0.60). Furthermore, the wind variations' amplitude is underestimated. To address this bias, a simple correction method is proposed.","PeriodicalId":51132,"journal":{"name":"Meteorology and Atmospheric Physics","volume":"188 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138537955","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

Role of radiation and canopy model in predicting heat waves using WRF over the city of Bhubaneswar, Odisha 辐射和冠层模式在利用WRF预测奥里萨邦布巴内斯瓦尔市热浪中的作用

4区地球科学

Meteorology and Atmospheric Physics Pub Date : 2023-11-10 DOI: 10.1007/s00703-023-00994-x

Alugula Boyaj, Raghu Nadimpalli, DPranay Reddy, P. Sinha, N. R. Karrevula, Krishna K. Osuri, Akhil Srivastava, Madhusmita Swain, U. C. Mohanty, Sahidul Islam, Akshara Kaginalkar

引用次数: 0

Feasibility of forecasting convective rain by diagnosing intracloud lightning jumps 云内闪电跃变诊断预报对流降雨的可行性

4区地球科学

Meteorology and Atmospheric Physics Pub Date : 2023-11-07 DOI: 10.1007/s00703-023-00997-8

Jyh-Huei Tai, Wei-Kuo Soong, Pei-Hua Tan, Mark Yin-Mao Wang, Po-Hsiung Lin

{"title":"Feasibility of forecasting convective rain by diagnosing intracloud lightning jumps","authors":"Jyh-Huei Tai, Wei-Kuo Soong, Pei-Hua Tan, Mark Yin-Mao Wang, Po-Hsiung Lin","doi":"10.1007/s00703-023-00997-8","DOIUrl":"https://doi.org/10.1007/s00703-023-00997-8","url":null,"abstract":"Abstract This study conducted a comparison of the data quality of Earth Networks (EN) and Taiwan Power Company’s Total Lightning Detection System (TLDS) and evaluated the feasibility of using intracloud (IC) lightning to issue convective rain warnings. The results indicate uncertainties in the TLDS positioning of IC lightning. When forecasting convective rain on the basis of IC lightning jumps using EN data, the mean prefigurance and postagreement scores were 0.8 and 0.67, respectively, which were more favourable than the respective TLDS scores of 0.65 and 0.47. In regions with high TLDS positioning uncertainties, the use of EN data increased the number of prefigurance and postagreement hits in each analysis zone and raised the prefigurance and postagreement scores to 0.3 and 0.5, respectively. This indicates that analyses using EN data can reduce the risk of missed convective rain warnings when diagnosing IC jumps and can reduce the false alarm rate. In this study, IC jumps preceded convective rains by a maximum of 27.5–39.3 min on average in all analysis zones across Taiwan. The results suggest that diagnosing IC jumps to forecast convective rain is feasible, but until the uncertainties in the positioning of IC lightning using TLDSs have been remedied, EN data are the more suitable diagnostic choice.","PeriodicalId":51132,"journal":{"name":"Meteorology and Atmospheric Physics","volume":"16 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135476466","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

Variability in episodic precipitation concentration in the Asian megacity of Dhaka, Bangladesh 亚洲大都市孟加拉国达卡的降水浓度变异性

4区地球科学

Meteorology and Atmospheric Physics Pub Date : 2023-11-03 DOI: 10.1007/s00703-023-00995-w

Md Anarul Haque Mondol, Md Ashraful Habib, Faria Kabir, Abu Reza Md. Towfiqul Islam, Md Zakiur Rahman, Mohammad Kamruzzaman, Ubaydur Rahaman Siddiki

引用次数: 0

Origin and maintenance of upper tropospheric inversion over the northern Indian Ocean during boreal winter of 2018 2018年北方冬季印度洋北部对流层上层逆温的起源和维持

4区地球科学

Meteorology and Atmospheric Physics Pub Date : 2023-11-03 DOI: 10.1007/s00703-023-00996-9

S. V. Sunilkumar, Maria Emmanuel, M. Muhsin, P. R. Satheesh Chandran, A. Hemanth Kumar, Freddy P. Paul, K. Rajeev

引用次数: 0

On the nature of drag coefficient over a tropical coastal station 热带沿海站上空阻力系数的性质

4区地球科学

Meteorology and Atmospheric Physics Pub Date : 2023-10-30 DOI: 10.1007/s00703-023-00993-y

Sonali Maurya, A. Chandrasekar, K. V. S. Namboodiri

引用次数: 0

The impact of carbon dioxide removal on temperature parameters over West Africa 二氧化碳去除对西非上空温度参数的影响

4区地球科学

Meteorology and Atmospheric Physics Pub Date : 2023-10-27 DOI: 10.1007/s00703-023-00992-z

E. K. Uzoma, M. O. Adeniyi, D. P. Keller, R. Séférian, E. O. Oladiran

引用次数: 0