Pengcheng Yan
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View article: Determination of 26 perfluorinated and polyfluoroalkyl compounds in human serum by solid-phase extraction-high performance liquid chromatography-tandem mass spectrometry
Determination of 26 perfluorinated and polyfluoroalkyl compounds in human serum by solid-phase extraction-high performance liquid chromatography-tandem mass spectrometry Open
Perfluorinated and polyfluoroalkyl compounds （PFASs） represent a category of synthetic chemicals renowned for their environmental persistence. Owing to their hydrophobic， oleophobic， and high-temperature-resistant properties， PFASs are ext…
View article: Research on the Impact of Deep Sea Offshore Wind Farms on Maritime Safety
Research on the Impact of Deep Sea Offshore Wind Farms on Maritime Safety Open
With the rapid development of offshore wind farms, the construction of deep sea wind farms has increasingly significant impacts on the safety of maritime navigation. This paper conducts a cluster analysis of ship trajectories based on AIS …
View article: Kilometer-Scale Precipitation Forecasting Utilizing Convolutional Neural Networks: A Case Study of Jiangsu’s Coastal Regions
Kilometer-Scale Precipitation Forecasting Utilizing Convolutional Neural Networks: A Case Study of Jiangsu’s Coastal Regions Open
High-resolution precipitation forecasts play a pivotal role in formulating comprehensive disaster prevention and mitigation plans. As spatial resolution enhances, striking a balance between computation, storage, and simulation accuracy bec…
View article: Characteristics and Simulation of Icing Thickness of Overhead Transmission Lines across Various Micro-Terrains
Characteristics and Simulation of Icing Thickness of Overhead Transmission Lines across Various Micro-Terrains Open
The hazard of ice accretion on overhead power circuits is significant, yet predicting it is very difficult. The key reason lies in the shortage of sufficient observational data on ice thickness, and previous studies have also rarely taken …
View article: Multiscale interaction underlying 2022 concurrent extreme precipitation in Pakistan and heatwave in Yangtze River Valley
Multiscale interaction underlying 2022 concurrent extreme precipitation in Pakistan and heatwave in Yangtze River Valley Open
Unprecedentedly extreme precipitation occurred in Pakistan (PAK), and mega heat waves persisted along the Yangtze River Valley (YRV) from July to August 2022. Using the advanced multiscale window transform-based canonical transfer attribut…
View article: Research on wire icing simulation technology considering the weights of meteorological elements
Research on wire icing simulation technology considering the weights of meteorological elements Open
Wire icing seriously threatens the safety and reliability of power systems. Strengthening the simulation study of icing thickness is crucial for disaster prevention and mitigation, as well as the adjustment of power system operation strate…
View article: Multi-scale Interaction Underlying the 2022 Concurrent Extreme Precipitation in Pakistan and Mega Heatwave in Yangtze River Valley
Multi-scale Interaction Underlying the 2022 Concurrent Extreme Precipitation in Pakistan and Mega Heatwave in Yangtze River Valley Open
Unprecedentedly extreme precipitation occurred in Pakistan (PAK), and mega heat waves persisted along the Yangtze River Valley (YRV) from July to August 2022. Using the advanced multiscale window transform-based canonical transfer attribut…
View article: Research on the Identification of Typical Terrain Patterns in Yunnan Province Based on the K-Means Technology
Research on the Identification of Typical Terrain Patterns in Yunnan Province Based on the K-Means Technology Open
Wire icing is a prevalent challenge in both industrial and scientific domains, and it is widely acknowledged that terrain and water vapor are significant contributing factors in the formation of wire icing. Consequently, the identification…
View article: Impacts of Changing Atmospheric Circulations and Declining Spring Barents Sea Ice on More Frequent Summer Heatwave in South China
Impacts of Changing Atmospheric Circulations and Declining Spring Barents Sea Ice on More Frequent Summer Heatwave in South China Open
View article: Relationship between Summer Synoptic Circulation Patterns and Extreme Precipitation in Northern China
Relationship between Summer Synoptic Circulation Patterns and Extreme Precipitation in Northern China Open
Synoptic circulation patterns over the midlatitudes play a pivotal role in regional precipitation changes; however, the synoptic circulation patterns over eastern Asia (35°–60° N, 105°–145° E) and their effects on extreme precipitation eve…
View article: Actomyosin and CSI1/POM2 cooperate to deliver cellulose synthase from Golgi to cortical microtubules in Arabidopsis
Actomyosin and CSI1/POM2 cooperate to deliver cellulose synthase from Golgi to cortical microtubules in Arabidopsis Open
As one of the major components of plant cell walls, cellulose is crucial for plant growth and development. Cellulose is synthesized by cellulose synthase (CesA) complexes (CSCs), which are trafficked and delivered from the Golgi apparatus …
View article: Early Warning Signals of Dry-Wet Transition Based on the Critical Slowing Down Theory: An Application in the Two-Lake Region of China
Early Warning Signals of Dry-Wet Transition Based on the Critical Slowing Down Theory: An Application in the Two-Lake Region of China Open
In recent years, the dry-wet transition (DWT), which often leads to regional floods and droughts, has become increasingly frequent in the Poyang Lake basin and the Dongting Lake basin (hereinafter referred to as the two-lake region). This …
View article: Forecasting and Optimization of Wind Speed over the Gobi Grassland Wind Farm in Western Inner Mongolia
Forecasting and Optimization of Wind Speed over the Gobi Grassland Wind Farm in Western Inner Mongolia Open
Wind power, as one of the primary clean energies, is an important way to achieve the goals of carbon peak and carbon neutrality. Therefore, high-resolution measurement and accurate forecasting of wind speed are very important in the organi…
View article: Study on the Complexity Reduction of Observed Sequences Based on Different Sampling Methods: A Case of Wind Speed Data
Study on the Complexity Reduction of Observed Sequences Based on Different Sampling Methods: A Case of Wind Speed Data Open
Many studies have confirmed that the complexity of a time sequence is closely related to its predictability, but few studies have proposed methods to reduce the time sequence complexity, which is the key to improving its predictability. Th…
View article: Spatial and temporal characteristics of surface solar radiation in China and its influencing factors
Spatial and temporal characteristics of surface solar radiation in China and its influencing factors Open
The total-sky direct solar radiation at Earth’s surface (SRS) not only has an important impact on the earth’s climate and ecology, but also is a crucial parameter for solar photovoltaic power. SRS determines whether photovoltaic power plan…
View article: Evolution Characteristics of Sand-Dust Weather Processes in China During 1961–2020
Evolution Characteristics of Sand-Dust Weather Processes in China During 1961–2020 Open
The spring sand-dust weather can be disastrous in China. It seriously endangers agricultural production, transportation, air quality, people’s lives and property, and is a subject of sustained and extensive concern. Currently, few studies …
View article: Sensitivity analysis of standardized precipitation index to climate state selection in China
Sensitivity analysis of standardized precipitation index to climate state selection in China Open
In the calculation of the standardized precipitation index (SPI) index, it is necessary to select a certain period of precipitation samples as the reference climate state, and the SPI obtained by different reference climate states have dif…
View article: Early-Warning Signals of Drought-Flood State Transition over the Dongting Lake Basin Based on the Critical Slowing Down Theory
Early-Warning Signals of Drought-Flood State Transition over the Dongting Lake Basin Based on the Critical Slowing Down Theory Open
In this study, the standardized precipitation index (SPI) data in Hunan Province from 1961 to 2020 is adopted. Based on the critical slowing down theory, the moving t-test is firstly used to determine the time of drought-flood state transi…
View article: Interdecadal Variations of Persistent Extreme Heat Events in Eastern China Under Global Warming
Interdecadal Variations of Persistent Extreme Heat Events in Eastern China Under Global Warming Open
Persistent extreme heat events (PEHEs) exert a more negative impact on society, including agriculture, plant phenology, power production and human health, compared to general EHEs. The temporal and spatial characteristics of summer PEHEs i…
View article: Typical Modes of the Wind Speed Diurnal Variation in Beijing Based on the Clustering Method
Typical Modes of the Wind Speed Diurnal Variation in Beijing Based on the Clustering Method Open
Wind speed is an important meteorological condition affecting the urban environment. Thus, analyzing the typical characteristics of the wind speed diurnal variation is helpful for forecasting pollutant diffusion. Based on the K-means clust…
View article: Feasibility of Calculating Standardized Precipitation Index with Short-Term Precipitation Data in China
Feasibility of Calculating Standardized Precipitation Index with Short-Term Precipitation Data in China Open
At present, high-resolution drought indices are scarce, and this problem has restricted the development of refined drought analysis to some extent. This study explored the possibility of calculating the standardized precipitation index (SP…
View article: A 3D Copula Method for the Impact and Risk Assessment of Drought Disaster and an Example Application
A 3D Copula Method for the Impact and Risk Assessment of Drought Disaster and an Example Application Open
Droughts have more impact on crops than any other natural disaster. Therefore, drought risk assessments, especially quantitative drought risk assessments, are significant in order to understand and reduce the negative impacts associated wi…
View article: Unnatural Trend Detection of Arctic Amplification
Unnatural Trend Detection of Arctic Amplification Open
The driving mechanism of Arctic amplification (AA) is so complex that no consistent and definitive conclusion has been formed yet. In particular, the natural or unnatural cause of AA has not yet been investigated and distinguished in clari…
View article: Urbanization Significantly Reduces Frequency of Light Rain: an Example From Beijing City
Urbanization Significantly Reduces Frequency of Light Rain: an Example From Beijing City Open
An hour precipitation dataset of 42 automatic weather stations is developed and applied to analyze the temporal and spatial characteristics of light precipitation in urban areas of Beijing City during 2007-2017. The stations are classified…
View article: Unnatural trend of global land long‐term surface air temperature change
Unnatural trend of global land long‐term surface air temperature change Open
In the context of global warming, determining to what extent natural variability and external forcing have an impact on climate change is crucial for formulating mitigation policies and adaptation plans. We quantifiably and effectively sep…
View article: A method for predicting the uncompleted climate transition process
A method for predicting the uncompleted climate transition process Open
Climate change is expressed as a climate system transiting from the initial state to a new state in a short time. The period between the initial state and the new state is defined as the transition process, which is the key part for connec…
View article: A method to predict the uncompleted climate transitionprocess
A method to predict the uncompleted climate transitionprocess Open
Climate change could be expressed as a climate system transiting from the initial state to a new state in a short time. By considering the short period as a continued process, which is called transition process, more details of climate cha…
View article: Bias-correction method for wind-speed forecasting
Bias-correction method for wind-speed forecasting Open
The improvement in wind-speed-forecast accuracy by modifying the bias between simulations and observations can significantly improve the wind-power efficiency of wind farms, increase grid stability, relieve grid pressure, and reduce econom…
View article: Development and Evaluation of a WRF-Based Mesoscale Numerical Weather Prediction System in Northwestern China
Development and Evaluation of a WRF-Based Mesoscale Numerical Weather Prediction System in Northwestern China Open
Based on the U.S. Weather Research and Forecasting (WRF) numerical model, this study has developed the Northwest Mesoscale Numerical Prediction Service and Experimental System (NW-MNPS). Surface and sounding data assimilation has been intr…
View article: Stable and unstable regions of the Lorenz system
Stable and unstable regions of the Lorenz system Open
The stable and unstable regions of the Lorenz system are studied. We discuss the relationship between the initial conditions and both these regions, specifically, the preference for the trajectory of the Lorenz system to move towards the l…