Global Vegetation Greenness Normalized Difference Vegetation Index (NDVI) from Advanced Very High Resolution Radiometer (AVHRR) Global Inventory Modeling and Mapping Studies-3rd Generation (GIMMS-3G+), 1981-2022

This dataset holds the Global Inventory Modeling and Mapping Studies-3rd Generation V1.2 (GIMMS-3G+) data for the Normalized Difference Vegetation Index (NDVI). NDVI was based on corrected and calibrated measurements from Advanced Very High Resolution Radiometer (AVHRR) data with a spatial resolution of 0.0833 degree and global coverage for 1982 to 2022. Maximum NDVI values are reported within twice monthly compositing periods (two values per month). The dataset was assembled from different AVHRR sensors and accounts for various deleterious effects, such as calibration loss, orbital drift, and volcanic eruptions. The data are provided in NetCDF format. This dataset provides one of the longest continuous records of global vegetation productivity. It has been widely used by the remote sensing community and has supported many scientific publications.

本数据集收录归一化差分植被指数（Normalized Difference Vegetation Index, NDVI）的全球库存建模与制图研究第三代版本1.2（Global Inventory Modeling and Mapping Studies-3rd Generation V1.2, GIMMS-3G+）数据。该NDVI数据基于经校正与定标的先进甚高分辨率辐射计（Advanced Very High Resolution Radiometer, AVHRR）观测测量结果生成，空间分辨率为0.0833°，覆盖1982年至2022年的全球范围。数据以每月两次合成周期输出最大NDVI值，即每月包含两个有效数值。本数据集整合了多台不同AVHRR传感器的观测数据，并校正了多种干扰效应，包括定标损失、轨道漂移及火山喷发带来的影响。数据以网络通用数据格式（NetCDF）提供。本数据集是目前全球植被生产力最长连续观测记录之一，已被遥感学界广泛使用，并支撑了大量学术出版物的研究工作。

搜集汇总

背景与挑战

背景概述

该数据集包含1982-2022年全球范围的归一化差异植被指数（NDVI）数据，空间分辨率为0.0833度，每14-16天提供一次最大NDVI值。数据经过多传感器整合和多种干扰校正，是研究全球植被生产力的重要资源。