2. 使用FAO/GAUL_SIMPLIFIED_500m/2015/level0数据集,过滤出包含上述几何点的区域roi,并将该区域添加到地图中。 3. 使用ECMWF/ERA5_LAND/DAILY_AGGR数据集,选择了温度变量temperature_2m,并进行了一系列筛选条件:选择2015年到2018年的数据,以及3月到6月的数据。然后对每个图像进行了处理,将温度转换为摄氏度,并...
使用的气温数据为 ERA5-Land Daily Aggregated 下载自GEE https://developers.google.com/earth-engine/datasets/catalog/ECMWF_ERA5_LAND_DAILY_RAW 下面是代码 #清空变量 rm(list = ls()) gc() #安装包 #install.packages("terra") #install.packages("heatwaveR") #install.packages("magrittr") #install...
ERA5- land是一个再分析数据集,ERA5- land是通过重放ECMWF ERA5气候再分析的陆地分量而产生的。 数据描述: (2)数据变量 单位转换:confluence.ecmwf.int/pa 以ERA5-land的降水 Total precipitation为例, 日平均的月平均积累包含单位 per day:The accumulations in monthly means of daily means have been scaled...
卫星观测数据不准确及插值方法造成的误差有关。ERA5数据其实并不能完美复刻观测结果，而更像是数值模式根...
Results reveal a general underestimation of TMAX and overestimation of TMIN in both operational forecasts and ERA5, highlighting the limitation of the ECMWF model in estimating the amplitude of the diurnal cycle of air temperature. ERA5′s accuracy has improved over the past decade, du...
To better analyze the spatial and temporal changes in the FG, two 30-year periods (1951–1980 and 1991–2020) were extracted, and the annual PFG, SFG, IFG and NFG were aggregated into 30-year values (PFG30, SFG30, IFG30, and NFG30), determined as follows:(2)Land{PFG30NPFG=30SFG...
使用的气温数据为 ERA5-Land Daily Aggregated 下载自GEE https://developers.google.com/earth-engine/datasets/catalog/ECMWF_ERA5_LAND_DAILY_RAW 下面是代码 #清空变量 rm(list = ls()) gc() #安装包 #install.packages("terra") #install.packages("heatwaveR") ...
热浪识别重点使用的是heatwaveR包 使用的气温数据为 ERA5-Land Daily Aggregated 下载自GEE https://developers.google.com/earth-engine/datasets/catalog/ECMWF_ERA5_LAND_DAILY_RAW 下面是代码 #清空变量 rm(list = ls()) gc() #安装包 #install.packages("terra") ...
2.2.2. ERA5-Land Dataset ERA5-Land originates from the European Centre for Medium-Range Weather Forecasts (ECMWF) website (https://cds.climate.copernicus.eu, accessed on 20 October 2023). Its original spatial resolution is 0.1° × 0.1° with a temporal resolution of hourly or monthly scal...
Some of the missing daily data were discarded without affecting the error evaluation. 2.3. Reanalysis Data 2.3.1. ERA5-Land The ERA5-Land data is the latest (fifth generation) climate reanalysis dataset produced by the ECMWF, providing hourly data using the 4D-Var data assimilation technique ...