ARIS全球1x1°月平均气温数据集

"该数据集获取自美国国家航空航天局戈达德宇宙飞行中心。大气红外探测器（AIRS）是第二地球观测系统（EOS）极轨平台EOS Aqua上的光栅光谱仪（R=1200）。AIRS与先进的微波探测装置（AMSU）和巴西湿度探测仪（HSB）相结合，构成了一个由可见光、红外和微波传感器组成的创新大气探测组。AIRS 3级月度网格检索产品包含标准检索手段、标准偏差和输入计数。每个文件覆盖一个日历月。平均值只是日常产品的算术平均值，通过该网格框中每天的输入计数数进行加权。地球物理参数已平均，并分为1 x1度网格单元，经度为-180.0至+180.0度，纬度为-90.0至+90.0度。对于每个4字节浮点平均值的栅格图，有一个对应的标准偏差4字节浮点图和计数2字节整数栅格图。计数图为用户提供了包含在平均值中的每个箱子的点数，可用于从每日网格化产品生成自定义多日图。热力学参数包括：表面温度（陆地和海面）、表面气温、气温和水汽廓线、对流层顶特征、柱状可降水量、云量/频率、云高、云顶压力、云顶温度、反射率、发射率、表面压力、云垂直分布。痕量气体参数包括：一氧化碳、甲烷和臭氧的总量和垂直分布。数据文件中变量的实际名称应从处理文件描述文档中推断出来。
将下载的HDF文件，转换成TIF格式，便于查看。"
GlobeLand30采用WGS-84坐标系，共包括10个一级类型，分别是：耕地、林地、草地、灌木地、湿地、水体、苔原、人造地表、裸地、冰川和永久积雪。
GlobeLand30分幅数据由地表覆盖数据文件、坐标信息文件、分类影像接图表文件、元数据文件4部分组成。其中：
1) 地表覆盖数据文件是指存储分幅地表覆盖分类信息的文件；
2) 坐标信息文件是指记录分幅数据坐标信息的文件；
3) 分类影像接图表文件是指记录分类所用的主要影像范围及获取时间的矢量文件；
4) 元数据文件指记录分幅数据元数据信息的文件。"

This dataset is sourced from the Goddard Space Flight Center of the National Aeronautics and Space Administration (NASA) of the United States. The Atmospheric Infrared Sounder (AIRS) is a grating spectrometer (R=1200) mounted on the EOS Aqua polar-orbiting platform of the second Earth Observing System (EOS). Combined with the Advanced Microwave Sounding Unit (AMSU) and the Humidity Sounder for Brazil (HSB), AIRS forms an innovative atmospheric sounding suite consisting of visible, infrared, and microwave sensors. The AIRS Level 3 monthly gridded retrieval products include standard retrieval results, standard deviations, and input counts. Each file covers one calendar month. The average value is simply the arithmetic mean of the daily products, weighted by the number of input counts per day within that grid box. Geophysical parameters have been averaged and divided into 1×1 degree grid cells, with longitude ranging from -180.0 to +180.0 degrees and latitude ranging from -90.0 to +90.0 degrees. For each 4-byte floating-point raster map of the average value, there is a corresponding 4-byte floating-point raster map of the standard deviation and a 2-byte integer raster map of the counts. The count maps provide users with the number of data points included in the average for each grid box, and can be used to generate custom multi-day maps from daily gridded products. Thermodynamic parameters include: surface temperature (terrestrial and sea surface), surface air temperature, air temperature and water vapor profiles, tropopause characteristics, columnar precipitable water, cloud cover/frequency, cloud height, cloud top pressure, cloud top temperature, reflectivity, emissivity, surface pressure, and cloud vertical distribution. Trace gas parameters include: total amounts and vertical distributions of carbon monoxide, methane, and ozone. The actual names of variables in the data files should be inferred from the processing file documentation. Downloaded HDF files should be converted to TIF format for easy visualization.

GlobeLand30 adopts the WGS-84 coordinate system and includes a total of 10 first-level categories, which are: cultivated land, forest land, grassland, shrubland, wetland, water body, tundra, artificial surface, bare land, glacier and permanent snow. The tiled data of GlobeLand30 consists of four parts: land cover data files, coordinate information files, classified image index map files, and metadata files. 1) Land cover data files refer to files that store tiled land cover classification information; 2) Coordinate information files refer to files that record the coordinate information of tiled data; 3) Classified image index map files refer to vector files that record the main image ranges and acquisition times used for classification; 4) Metadata files refer to files that record the metadata information of tiled data.

搜集汇总

背景与挑战

背景概述

ARIS全球1x1°月平均气温数据集是一个覆盖全球范围、时间跨度为2009年12月至2021年8月的月平均气温栅格数据，空间分辨率为1度。数据来源于NASA的AIRS仪器，结合红外和微波传感器，提供包括表面温度、空气温度在内的多种大气参数，并以转换后的TIF格式便于使用，适用于遥感与测绘科学领域的研究。