Decadal Variation in Raindrop Size Distributions in Busan, Korea by Cheol-Hwan You, Dong-In Lee

“…Larger raindrops contributed to the higher rain rates that were observed in the morning during 2012, whereas relatively smaller raindrops dominated in the afternoon. …”
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Encounter Risk Analysis of Rainfall and Tide in Shenzhen Based on Copula Function by SHI Yunyun, YAO Hangbin, WAN Donghui, ZHENG Xinqian

“…The disasters of encounter of extreme rainstorm and high tide level will aggravate the flood in coastal cities.In order to explore the impact of the encounter of rainstorm and tide on flood control and drainage in coastal cities,based on the annual maximum 1 day rainfall and its corresponding tide level data of Chiwan Station in Shenzhen from 1967 to 2018,the Copula function is used to construct a joint distribution model of annual maximum 1 day rainfall and its corresponding tide level,and the co-occurrence risk,the flood control risk,the condition risk and the combination risk of rain and tide in Shenzhen are calculated and analyzed.The results show that the risk of the encounter of rain and tide in Shenzhen is small,and the co-occurrence and combination risk probability of rainfall whose return period greater than 100 years and tidal level whose return period greater than 200 years are only 0.12% and 0.09%.The probability of the occurrence of rainfall or tide exceeding the standard magnitude is 1.09%,and its return period is less than 100 years.When the rainfall exceeds the standard magnitude,the probability of encountering an over-standard tide level is greater,with a probability of 12.33%.At the same time,with the increase of rainfall,the risk will also increase.Therefore,in the planning and design of flood and tide prevention and drainage in cities,the focus should be on attention and prevention.…”
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Design of Hydrological Telemetry System Based on NB-IoT Communication Technology by ZHANG Xinmeng, LIU Shuyang, WANG Canhui

“…With the progress in society and information technology, the rapid emergency response capability for urban flood,drought,and wind prevention needs to be improved.Given the demand, this paper adopts the low-power Internet of Things (NB-IoT) communication technology to design water and rain telemetry terminals in the way of product integration instead of traditional system integration.This technology further reduces the dependence of the equipment on the external environment and improves the stability and reliability of the front-end data acquisition of the hydrological telemetry system,making it possible to deploy the hydrological telemetry terminal for monitoring on a large scale.According to urban emergency prevention and control requirements,Guangzhou Nansha District Flood and Drought Prevention Headquarters Office constructed a new generation of hydrological telemetry system with low cost,strong scalability,and high reliability.By quickly covering urban flood risk points,the system can master real-time water and rain data in the key position of Nansha District to assist the emergency decision,improve emergency response capabilities,and realize the precise distribution of flood control forces,thus reducing the property losses for urban residents.The results show that the hydrological telemetry system based on NB-IoT communication technology applied on a large scale for the first time in Guangzhou can provide efficient data support for dealing with various disasters in flood seasons.…”
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DYNAMIC CHARACTERISTICS AND FATIGUE LIFE ANALYSIS OF PLOW BIT-HOLDER UNDER RANDOM LOAD by TIAN Zhen, JING ShuangXi, ZHAO LiJuan, ZHANG JianJun

“…The cumulative fatigue damage of the bit-holder was analyzed by rain flow counting method,and the fatigue life was predicted to be about 475. 7 days. …”
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Comparisons of the Generalized Potential Temperature in Moist Atmosphere with the Equivalent Potential Temperature in Saturated Moist Atmosphere by Yushu Zhou, Liping Liu, Guo Deng

“…Results showed that the relative humidity is not up to 100% even in torrential rain systems, the saturated condition for EPT is not always held, and thus GPT can describe the moisture concentration and moisture gradient better than EPT. …”
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Developing an efficient and optimized irrigation plan under varying water-supply regimes by Purushottam Agrawal, Jitendra Sinha, Nilima Jangre, Fanesh Kumar, Kamalkant, Alok Sinha, Ashwin Singh, Ashes Banerjee, Akella Satya Venkatesh, Srinivas Pasupuleti

“…An optimal irrigation plan was developed based on the analysis of the current water supply scenario for four different paddy production situations: 1) Rainfed (10 ha), 2) Rain + Canal irrigated (2174 ha), 3) Rain + Borewell + Rivulet irrigated (165 ha), and 4) Rain + Canal + Borewell irrigated (243  ha). …”
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Analysis on the Land Transition in Gunungkidul using Multi Temporal Remote Sensing by Wahyu Wardhana, Junun Sartohadi, Lies Rahayu, Andri Kurniawan

“…A unique phenomenon of the transition process of re-vegetation is that the regions dominated by settlement/yard, rain fed and upland/fields (in accordance to SNI 7645-2010). …”
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Quantification and Evaluation of Soil Erosion in the Estuaries of Cameroon, Gulf of Guinea: Case of Nylon Area by Eric Flavien Mbiakouo-Djomo, Ebénézer Njeugna, Denis Tcheukam-Toko, Didier Fokwa

“…It helps in assessing erosion caused by the rain and extrapolating results over the catchment area of the chosen field of study. …”
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Simulation of rainfall temporal distribution pattern using WRF Model (case study of Parsian dam basin) by Elaheh Ghasemi Karakani, Ebrahim Fattahi, Loabat Salehi Pak, Hooshang Ghaemi

“…For this purpose, availability of short-term time scales rainfalls data are important that obtained by rain gauge stations. However, the low density of the rain gauge network and the lack of sufficient data from the time pattern of rainfall have always been a problem in determining storm patterns for executive plans. …”
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Rainfall-related impacts on a terraced landscape: Sóller valley (Mallorca, Spain) December 2016-January 2017 by Joan Rosselló-Geli

“…The results show how the terraces cannot cope with large amounts of rain, which increase the risk of collapse and affecting activities developed in these areas. …”
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Measuring Hydrometeors with a Precipitation Microphysical Characteristics Sensor: Calibration and Field Measurements by Yuntao Hu, Xichuan Liu, Taichang Gao, Xiaojian Shu

“…The typical shape of large raindrop is an oblate ellipsoid, the axis ratio of raindrops decreases linearly with the diameter, the fall velocity of raindrops approaches its asymptote, and the above observed results are in good agreement with the empirical models; the synchronous observation of a PMCS, an OTT PARSIVEL disdrometer, and a rain gauge shows that the PMCS is able to measure the rain intensity, accumulated rainfall, and drop size distribution with high accuracy. …”
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Raindrop Size Distribution Retrieval Using Joint Dual-Frequency and Dual-Polarization Microwave Links by Kun Song, Xichuan Liu, Taichang Gao, Binsheng He

“…Detailed analyses of the rain-induced attenuation calculation are performed based on the T-matrix method. …”
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Impact of Weather Factors on Unmanned Aerial Vehicles’ Wireless Communications by Lalan Mishra, Naima Kaabouch

“…However, adverse weather conditions caused by atmospheric gases, clouds, fog, rain, and turbulence pose challenges by degrading communication signals. …”
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The Relationship between the Atmospheric Heat Source over Tibetan Plateau and the Westerly-Monsoon Evolution in August and Its Physical Mechanism by Chunxue Wang, Yueqing Li

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Attenuation Correction of Weather Radar Reflectivity with Arbitrary Oriented Microwave Link by Peng Zhang, Xichuan Liu, Zhaoming Li, Zeming Zhou, Kun Song, Pinglv Yang

“…The effectiveness of the method was also verified by comparing the rain rates estimated by the X-band radar with those derived by rain gauges. …”
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Rendre compte de l'insaisissable by Youssoupha Tall, Jeanne Riaux, Benjamin Sultan

“…Agriculture in Senegal is predominantly rain-fed and depends heavily on meteorological services. …”
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Two Different Integration Methods for Weather Radar-Based Quantitative Precipitation Estimation by Jing Ren, Yong Huang, Li Guan, Jie Zhou

“…We discuss two different integration methods for radar-based quantitative precipitation estimation (QPE): the echo intensity integral and the rain intensity integral. Theoretical analyses and simulations were used to test differences between these two methods. …”
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Studying the Effect of Changes in Dew Point Temperature on Extreme Precipitation in the North West of Iran by Mahnaz Rostamian, Seyed Hossein Mirmousavi, Kohzad Raispour

“…In the present research, using the daily precipitation data of 479 meteorological and rain gauge stations in the north west of Iran, the relationship between the changes in the dew point temperature and the precipitation in this region was investigated. …”
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Feature Selection for Very Short-Term Heavy Rainfall Prediction Using Evolutionary Computation by Jae-Hyun Seo, Yong Hee Lee, Yong-Hyuk Kim

“…We modified the AWS data for the recent four years to perform efficient prediction, through normalizing them to numeric values between 0 and 1 and undersampling them by adjusting the sampling sizes of no-heavy-rain to be equal to the size of heavy-rain. Evolutionary algorithms were used to select important features. …”
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Spatiotemporal Evolution Law of Precipitation in Zhengzhou City Based on Multi-Source Data by JIANG Xi

“…All four sets of precipitation data show an overestimation of light rain and an underestimation of moderate and heavy rain. …”
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