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	1. Evaluation of ERA5 temperature and precipitation data in Fujian Province of China.
	Amandu Dennis Tagawa,Gao Lu
	Earth Science 11 March 2022
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	Abstract:InAlthough reanalysis data has been widely applied over the world in the past two decades, the latest generation reanalysis, ERA5 produced by ECMWF, has not been evaluated on local scales. In this study, monthly air temperature and monthly total precipitation data from 22 meteorological stations in Fujian Province was applied to validate the reliability of ERA5 in 1979-2019. The results showed that ERA5 generally performed well in capturing temporal pattern of temperature and precipitation in Fujian Province of China. The correlation coefficient between observations and ERA5 for temperature ranged from 0.996 to 0.999. The RMSE ranged between 0.36 C and 5.49 C with an average of 1.08 C over all stations. ERA5 monthly minimum temperature, maximum temperature and mean temperatures showed the significant correlations with r2 ranged from 0.87 to 0.89. The correlation coefficient ranged from 0.6 to 0.81 with an average of 0.7 for all the stations which indicates that ERA5 captured well for annual monthly precipitation. The largest RMSE was 625.59mm found at Pucheng station. The biases ranged from -138.8mm to 529.4mm with average bias value of 148.2mm for annual precipitation. The bias difference was possible from the height differences between ERA5 grid point and height of the observation.
	TO cite this article:Amandu Dennis Tagawa,Gao Lu. Evaluation of ERA5 temperature and precipitation data in Fujian Province of China.[OL].[11 March 2022] http://en.paper.edu.cn/en_releasepaper/content/4756636


	2. Analysis on the current situation of land use and economic development in Yantai city
	LIU Luyu,WANG Qiuxian,WU Xiao
	Earth Science 02 September 2019
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	Abstract:In this paper, based on the remote sensing image of Landsat7 TM/ETM, the ArcGIS10.3 software is used to interpret the land use in Yantai 2015, and the Land Use Remote sensing classification of China\'s coastal zone is classified as the basis, then the land use status of Yaitai 2015 is obtained. The paper analyzes the matching relationship between land use status and economic development by combining the state of economic development, relevant literature and related Yearbook. The following conclusions are drawn: ①The main land utilization type of Yantai 2015 are arable land, woodland, garden and construction sites, while the unused land area is very small. ②The protection of coastal wetlands in Yantai has been better in recent ten years, and the methods of inshore aquaculture and other utilization have increased. ③ The development and policy of Yantai economy is the main driving force of the change of land use mode. ④ The Yantai city belongs to the retarded type of land use benefit, and the development degree of barely coordinating can′t provide a big impetus for economic development.
	TO cite this article:LIU Luyu,WANG Qiuxian,WU Xiao. Analysis on the current situation of land use and economic development in Yantai city[OL].[ 2 September 2019] http://en.paper.edu.cn/en_releasepaper/content/4749542


	3. Analysis on Land Use Dynamic Changes in Qingdao from 2005 to 2015 based on ArcGIS
	Zhuotao Liu,Qiuxian Wang,Xiao Wu
	Earth Science 30 August 2019
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	Abstract:In order to study the land use change situation of Qingdao in recent 10 years, this paper used the land Use classification system of China\'s coastal zone to overlay the land use of 2015 by visual interpretation with 2005 data in Arcgis10.2. The results showed that the residence of Qingdao increased 1612.3km2, the area of urban mining increased 351.2km2, the area of woodland increased 499.7km2, and the area of arable land decreased 1911.9km2, the grassland areas decreased 342.4km2, and the water body decreased 277.4km2. These changes were mainly due to the speed of urbanization, another reason was that the Government attached importance to environmental issues, vigorously carried out afforestation and returned farmland to forest. The research provided scientific basis for local government departments to formulate targeted land use planning and policies, which is of great practical significance for regional comprehensive, coordinated and sustainable development.
	TO cite this article:Zhuotao Liu,Qiuxian Wang,Xiao Wu. Analysis on Land Use Dynamic Changes in Qingdao from 2005 to 2015 based on ArcGIS[OL].[30 August 2019] http://en.paper.edu.cn/en_releasepaper/content/4749450


	4. Interannual variation of the low-level atmospheric eddy kinetic energy over the South China Sea and its relationship with the tropical cyclone formation number
	WANG Lei
	Earth Science 10 February 2018
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	Abstract:Eddy kinetic energy (EKE) is one key dynamic parameter to characterize atmospheric circulations and synoptic-scale disturbance activities. Investigation of the distribution and variability of atmospheric EKE and related energy conversion components over the South China Sea (SCS) can help us to better understand the dynamics of the SCS monsoon and tropical cyclone (TC) formation in this region. We present our investigation on the interannual variations of low-level (850-hPa) atmospheric EKE over the SCS in this study. Both northern and southern SCS experienced prominent interannual variation in the 850-hPa EKE during their most active EKE months. The energy processes for generation and maintenance of the EKE were analyzed based on the EKE tendency equation. Results suggested that the ba

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