r语言worldclim数据_WorldClim: Global Climate Data数据介绍

WorldClimis

a set of global climate layers (climate grids) with a spatial

resolution of about 1 square kilometer. The data can be used for

mapping and spatial modeling in a GIS or with other computer

programs.

该数据的最大空间分辨率是30

arc-seconds resolution(1km分辨率栅格数据)，其他的还有10minutes(20km分辨率),

5minutes(10km分辨率), 2.5minutes(5km分辨率)。

数据包括平均温度(Mean

Temperature)、最小温度(Minimum

temperature)、最大温度(Maximum

temperature)、降水量(Precipitation)、高程(Altitude)和生物气候(Bioclim)。数据提供两种格式下载：GeoTiff和ArcGIS

BIL。数据格式说明见：Data

format。

BIO1 = Annual Mean Temperature

BIO2 = Mean Diurnal Range (Mean of monthly (max temp - min

temp))

BIO3 = Isothermality(BIO2/BIO7) (* 100)

BIO4 = Temperature Seasonality(standard deviation *100)

BIO5 = Max Temperature of Warmest Month

BIO6 =