Tellus Series A-Dynamic Meteorology and Oceanography最新文献_第3页

Filter Likelihood as an Observation-Based Verification Metric in Ensemble Forecasting 过滤似然作为集合预测中基于观测的验证度量

IF 2 4区地球科学

Tellus Series A-Dynamic Meteorology and Oceanography Pub Date : 2023-01-01 DOI: 10.16993/tellusa.96

Madeleine Ekblom, Lauri Tuppi, Olle Räty, P. Ollinaho, M. Laine, H. Järvinen

引用次数: 0

Preliminary Assimilation of Satellite Derived Land Surface Temperature from SEVIRI in the Surface Scheme of the AROME-France Model SEVIRI卫星反演地表温度在AROME-France模式地表方案中的初步同化

IF 2 4区地球科学

Tellus Series A-Dynamic Meteorology and Oceanography Pub Date : 2023-01-01 DOI: 10.16993/tellusa.48

M. Sassi, N. Fourrié, V. Guidard, C. Birman

引用次数: 1

A Novel Machine Learning Based Bias Correction Method and Its Application to Sea Level in an Ensemble of Downscaled Climate Projections 一种新的基于机器学习的偏差校正方法及其在气候预估集合中海平面的应用

IF 2 4区地球科学

Tellus Series A-Dynamic Meteorology and Oceanography Pub Date : 2023-01-01 DOI: 10.16993/tellusa.3216

M. Hieronymus, F. Hieronymus

引用次数: 1

The Merits of Ocean Prediction for the Prediction of 2010, 2016, and 2021 Summer Heavy Rainfall Events in Japan 海洋预报对2010年、2016年和2021年日本夏季强降水事件的预测价值

IF 2 4区地球科学

Tellus Series A-Dynamic Meteorology and Oceanography Pub Date : 2023-01-01 DOI: 10.16993/tellusa.1147

Y. Baba

引用次数: 1

Influence of Phase Variations of Madden-Julian Oscillation on Wintertime Large-Scale Cold Events in China 马登-朱利安涛动的相位变化对中国冬季大尺度冷事件的影响

IF 2 4区地球科学

Tellus Series A-Dynamic Meteorology and Oceanography Pub Date : 2023-01-01 DOI: 10.16993/tellusa.3233

Tao Feng, Li Li, Lei Wang, Zelin Cai

{"title":"Influence of Phase Variations of Madden-Julian Oscillation on Wintertime Large-Scale Cold Events in China","authors":"Tao Feng, Li Li, Lei Wang, Zelin Cai","doi":"10.16993/tellusa.3233","DOIUrl":"https://doi.org/10.16993/tellusa.3233","url":null,"abstract":"The station observations and reanalysis dataset are utilized to explore the effects of Madden-Julian Oscillation (MJO) on the cold extremes over the whole country of China, and the possible mechanisms from the perspective of the thermodynamics. Here, we focus on the principal modes of different phases of MJO in winter and their influences on the large scale cold events (LSCEs) that are identified firstly. The time evolution and the spatial features of LSCEs are checked for a basic insight of the LSCEs in China, of which the annual variability and regional differences are obvious among the chosen LSECs. In addition, the first (second) empirical orthogonal decomposition mode of MJO shows an opposite feature that positive values in Phases 1–3 (Phase 4–5) and negative values in Phases 5–7 (Phase 7–8), with the explanation of variance at 30.6% (26%). Furthermore, according to the threshold of ±1.5 in standardized time series of two principal components (PC1 and PC2), the events are chosen and clarified into four cases (+PC1, –PC1, +PC2 and –PC2). All the MJO-related cases present the increases of LSCEs but with regional and intensity differences. For the case of +PC1, the cold advection from higher latitudes transport to eastern Asia inducing negative temperature anomalies thereof. For the case of –PC1, besides the eastern Asian region, there still the cold advections across the Inner Mongolia regions, leaving negative anomalies over the region either. For the case of +PC2, the southward wind and the accompanied cold advection are stronger than the others affecting mostly regions in China, which leads to the more decreases of temperature. For the case of –PC2, the cold advections are weaker, resulting in the less temperature decreases over the southeastern China. Meanwhile, the tropospheric cyclonic and anti-cyclonic circulation anomalies are beneficial to the persistence of local extremes.","PeriodicalId":54433,"journal":{"name":"Tellus Series A-Dynamic Meteorology and Oceanography","volume":"16 1","pages":""},"PeriodicalIF":2.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80095773","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

Two Methods for Data Assimilation of Wind Direction 风向资料同化的两种方法

IF 2 4区地球科学

Tellus Series A-Dynamic Meteorology and Oceanography Pub Date : 2023-01-01 DOI: 10.16993/tellusa.2005

I. Grooms

引用次数: 0

A Comparison of Sea Surface Temperature Perturbation Methods for a Convection Permitting Ensemble Prediction System Over the European Arctic 欧洲北极上空对流允许集合预报系统的海表温度微扰方法比较

IF 2 4区地球科学

Tellus Series A-Dynamic Meteorology and Oceanography Pub Date : 2023-01-01 DOI: 10.16993/tellusa.27

Rafael Grote, A. Singleton

引用次数: 0

Robustness of Observing System Simulation Experiments 观测系统仿真实验的鲁棒性

4区地球科学

Tellus Series A-Dynamic Meteorology and Oceanography Pub Date : 2023-01-01 DOI: 10.16993/tellusa.3254

Nikki C. Privé, Erica L. McGrath-Spangler, David Carvalho, Bryan M. Karpowicz, Isaac Moradi

{"title":"Robustness of Observing System Simulation Experiments","authors":"Nikki C. Privé, Erica L. McGrath-Spangler, David Carvalho, Bryan M. Karpowicz, Isaac Moradi","doi":"10.16993/tellusa.3254","DOIUrl":"https://doi.org/10.16993/tellusa.3254","url":null,"abstract":"Observing System Simulation Experiments (OSSEs) are used to investigate the potential performance of proposed new instruments on numerical weather prediction (NWP). As OSSEs involve a framework in which the atmosphere and observations are all completely simulated, it is necessary to perform validation of the OSSE to ensure that it is sufficiently realistic to provide useful experimental results. A common issue that affects the forecast skill and observation impacts is the tendency of OSSEs to have insufficient model error compared to NWP in the real world. In this work, two versions of the National Aeronautics and Space Administration Global Modeling and Assimilation Office (NASA/GMAO) NWP OSSE framework are compared, with the newer framework having more simulated forecast model error than the older framework due to changes to the NWP system. The performance of the updated OSSE is validated against corresponding behavior of the same NWP system in the real world in terms of the simulated observations, the analysis increments, forecast error, and observation impacts. OSSE results of analysis and forecast impacts for three proposed new observation systems are also compared between the older and newer frameworks to evaluate the robustness of the OSSE experiments and the role of model error in observation impacts. These three new instruments are the Geostationary eXtended Observations (GeoXO) hyperspectral infrared sounder (GXS), the Midwave Infrared Sounding of Temperature and humidity in a Constellation for Winds (MISTiC Winds) atmospheric motion vectors, and additional Global Navigation Satellite System Radio Occultations (GNSS-RO).","PeriodicalId":54433,"journal":{"name":"Tellus Series A-Dynamic Meteorology and Oceanography","volume":"164 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136304343","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

Effect of the Quadric Shear Zonal Flows and Beta on the Downstream Development of Certain Unstable Baroclinic Waves 二次切变纬向流和β对某些不稳定斜压波下游发展的影响

IF 2 4区地球科学

Tellus Series A-Dynamic Meteorology and Oceanography Pub Date : 2023-01-01 DOI: 10.16993/tellusa.28

Jian Song, Y. Yang

引用次数: 0

Two-Dimensional Dynamics of Ice Crystal Parcels in a Cirrus Uncinus 卷云中冰晶包裹的二维动力学

IF 2 4区地球科学

Tellus Series A-Dynamic Meteorology and Oceanography Pub Date : 2023-01-01 DOI: 10.16993/tellusa.3227

R. Berton

引用次数: 0