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20 条 记 录,以下是 1-20

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Data assimilation of adaptive observation and application for typhoon forecasts over the Western North Pacific
ATMOSPHERIC RESEARCHChen, Siqi Zhang, Yu Xu, Jianjun Shen, Wenqi Ye, Guiling Lu, Zebin  出版年:2022
In this study, we added the post-processing module of the Ensemble Transform Sensitivity (ETS) to identify regions sensitive to adaptive observations of different variables at different levels for typhoon forecasts. We s...
Exploring the Impact of Planetary Boundary Layer Schemes on Rainfall Forecasts for Typhoon Mujigae, 2015
ATMOSPHEREShen, Wenqi Lu, Zebin Ye, Guilin Zhang, Yu Chen, Siqi Xu, Jianjun  出版年:2022
Sensitivity experiments were conducted on Typhoon Mujigae, which occurred in 2015, wherEIn the Weather Research and Forecasting Advanced Research (WRF-ARW) model was used to select two local and two nonlocal planetary bo...
Large-scale dynamic, heat and moisture structures of monsoon-influenced precipitation in the East Asian monsoon rainy area
QUARTERLY JOURNAL OF THE ROYAL METEOROLOGICAL SOCIETYZhang, Chunyan Wang, Donghai Pang, Zihao Zhang, Yu Jiang, Xiaoling Zeng, Zhilin Wu, Zhenzhen  出版年:2021
This study investigated large-scale dynamic structures along with heat and moisture budgets associated with monsoon-influenced precipitation over a typical rainy domain in the East Asian monsoon region. Large-scale dynam...
Analysis of the Severe Dust Process and Its Impact on Air Quality in Northern China
ATMOSPHERELiu, Xiaoyu Zhang, Yu Yao, Hailan Lian, Qinlai Xu, Jianjun  出版年:2023
Extreme meteorological events can influence air quality. In March 2021, northern China experienced a severe dust event, leading to widespread air quality deterioration. Using reanalysis datasets and station data, we inve...
Statistical Characteristics and Composite Environmental Conditions of Explosive Cyclones over the Japan Sea and Kuroshio/Kuroshio Extension
ATMOSPHEREZhang, Shuqin Fu, Gang Zhang, Yu Xu, Jianjun Xue, Yufeng Tang, Ruoying Gao, Xiaoyu Liu, Chunlei Long, Jingchao  出版年:2022
Statistical characteristics and composite synoptic-scale environmental conditions of explosive cyclones (ECs) over the Japan Sea and Kuroshio/Kuroshio Extension are examined and compared using ERA5 atmospheric reanalysis...
Impact of GPS radio occultation assimilation on the 18-21 July 2021 heavy rainfall event in Henan
ATMOSPHERIC RESEARCHChen, Siqi Xu, Jianjun Zhang, Yu Shen, Wenqi Guan, Zhaoyong Dong, Changming  出版年:2023
The Gridpoint Statistical Interpolation (GSI) assimilation system and Weather Research & Forecasting (WRF) mesoscale regional model were used to investigate the sensitivity of assimilating Global Positioning System radio...
Enhancing Extreme Precipitation Forecasts through Machine Learning Quality Control of Precipitable Water Data from Satellite FengYun-2E: A Comparative Study of Minimum Covariance Determinant and Isolation Forest Methods
REMOTE SENSINGShen, Wenqi Chen, Siqi Xu, Jianjun Zhang, Yu Liang, Xudong Zhang, Yong  出版年:2024
Variational data assimilation theoretically assumes Gaussian-distributed observational errors, yet actual data often deviate from this assumption. Traditional quality control methods have limitations when dealing with no...
Quantifying the impact of assimilating sensitive observations on heavy precipitation forecast with ensemble-based forecast sensitivity to observations technique
ATMOSPHERIC RESEARCHHuang, Lingdong Zhang, Yu Wang, Donghai Zeng, Zhilin  出版年:2024
In this study, the Ensemble-based Forecast Sensitivity to Observations (EFSO) technique was used to examine the impact of assimilated sensitive observations on the forecast of heavy rainfall through three data assimilati...
Comparing Quality Control Procedures Based on Minimum Covariance Determinant and One-Class Support Vector Machine Methods of Aircraft Meteorological Data Relay Data Assimilation in a Binary Typhoon Forecasting Case
ATMOSPHERELi, Jiajing Zhang, Yu Chen, Siqi Shao, Duanzhou Hu, Jiazheng Feng, Junjie Tan, Qichang Wu, Deping Kang, Jiaqi  出版年:2023
This study investigates the impact of assimilating Aircraft Meteorological Data Relay (AMDAR) observations on the prediction of two typhoons, Nesat and Haitang (2017), using the Gridpoint Statistical Interpolation (GSI) ...
Comparison between Multi-Physics and Stochastic Approaches for the 20th July 2021 Henan Heavy Rainfall Case
AtmosphereShao, Duanzhou Zhang, Yu Xu, Jianjun Zhang, Hanbin Chen, Siqi Tu, Shifei  出版年:2022
In this study, three model perturbation schemes, the stochastically perturbed parameter scheme (SPP), stochastically perturbed physics tendency (SPPT), and multi-physics process param-eterization (MP), were used to repre...
Study of Quality Control Methods Utilizing IRMCD for HY-2B Data Assimilation Application
ATMOSPHEREHu, Jiazheng Zhang, Yu Xu, Jianjun Li, Jiajing Shao, Duanzhou Tan, Qichang Feng, Junjie  出版年:2024
Quality control (QC) of HaiYang-2B (HY-2B) satellite data is mainly based on the observation process, which remains uncertain for data assimilation (DA). The data in operation have not been widely used in numerical weath...
Dynamic assessment and prediction of typhoon disaster risk in BEIbu Gulf: From the analytic hierarchy process and projection pursuit clustering perspective
Science of the Total EnvironmentFeng, Junjie Zhang, Yu Xu, Jianjun Hu, Jiazheng Tang, Yuan Liang, Xiwen  出版年:2025
The BEIbu Gulf, located over the South China Sea, has frequently experienced tropical cyclones and typhoons over recent decades, significantly impacting marine ranching activities. This study introduces the Typhoon Disas...
Sichuan Rainfall Prediction Using an Analog Ensemble
ATMOSPHERELai, Pengyou Yang, Jingtao Liu, Lexi Zhang, Yu Sun, Zhaoxuan Huang, Zhefan Shao, Duanzhou He, Linbin Rigo, Tomeu Havemann, Stephan  出版年:2023
This study aimed to address the significant bias in 0-44-day precipitation forecasts under numerical weather conditions. To achieve this, we utilized observational data obtained from 156 surface stations in the Sichuan r...
Sensitive Areas' Observation Simulation Experiments of Typhoon "Chaba" Based on Ensemble Transform Sensitivity Method
ATMOSPHEREAo, Yanlong Zhang, Yu Shao, Duanzhou Zhang, Yinhui Tang, Yuan Hu, Jiazheng Zhang, Zhifei Sun, Yuhan Lyu, Peining Yu, Qing He, Ziyan  出版年:2024
High-impact weather (HIW) events, such as typhoons, usually have sensitive regions where additional observations can be deployed and sensitive observations assimilated, which can improve forecasting accuracy. The ensembl...
Study on the selection of indicator parameters in marine water quality evaluation and the evaluation methodology
REMOTE SENSING OF THE OCEAN, SEA ICE, COASTAL WATERS, AND LARGE WATER REGIONS 2014Zhang Ying Pan Delu Wang Difeng Fu Dongyang  出版年:2014
In order to obtain the indicator types which must be introduced in marine water quality evaluation as well as the suitable evaluation methodology, GB3097-1997 National Marine Water Quality Standards is, in the first plac...
Improving Heavy Precipitation Forecast Using Data Assimilation with Ensemble-Based Forecast Sensitivity to Observations Technique: A Case Study
SSRNHuang, Lingdong Zhang, Yu Wang, Donghai Zeng, Zhilin  出版年:2023
To evaluate the role of observational data assimilated in model, the ensemble-based forecast sensitivity to observations (EFSO) technique was employed to explore the sensitive observations in numerical experiments on a h...
Updated Scheme for Data Assimilation of Adaptive Observation?And Application for Typhoon Forecasts Over the Western North Pacific
SSRNChen, Siqi Zhang, Yu Xu, Jianjun Ye, Guiling Lu, Zebin  出版年:2022
In this study, we firstly updated a method of the Ensemble Transform Sensitivity (ETS) to identify the adaptive observation sensitive regions for typhoon forecasts with the selected five cases during 2015-2020 year over ...
Consistency of Changes in the Ascending and Descending Positions of the Hadley Circulation Using Different Methods
ATMOSPHERESu, Qianye Liu, Chunlei Zhang, Yu Qiu, Juliao Li, Jiandong Xue, Yufeng Cao, Ning Liao, Xiaoqing Yang, Ke Zheng, Rong Liang, Zhiting Jin, Liang Huang, Kejia Jin, Ke Zhou, Nankai  出版年:2025
The shift in the intertropical convergence zone (ITCZ) and the poleward expansion of the Hadley circulation termini have attracted many investigations, since they affect the hydrological cycle and hence the societies and...
Low-temperature thawing Refrigerator Based on the Internet of Things
2017 29TH CHINESE CONTROL AND DECISION CONFERENCE (CCDC)Wang, Shuqing Lei, Guibin Wan, Wei Zhang, Ying Li, Canping  出版年:2017
Quick thawing destroys the taste, some nutrients of frozen foods and thEIr thawing in crisper of normal household refrigerator needs manual operation. Low temperature thawing refrigerator based on the internet of things ...
Impacts of Nonuniform Vertical Resolution Enhancement on Simulated Typhoon Lekima Intensity
SSRNLian, Qinlai Zhang, Yu Xu, Jianjun Liu, Xiaoyu  出版年:2023
In order to explore the impacts of nonuniform vertical resolution on the forecasting of typhoons, using the Weather Research and Forecasting (WRF) numerical model based on an example of the Super Typhoon Lekima (1909) oc...
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