MODDIS Terra星MOD17A2 1KM 总初级生产力8天合成产品

"总初级生产力(GPP:Gross Primary Productivity)是指单位时间内生物（主要是绿色植物）通过光合作用途径所固定的有机碳量，又称总第一性生产力。GPP决定了进入陆地生态系统的初始物质和能量。
MODIS总初级生产力（GPP）产品（MOD17A2）可以用作表面光和作用、蒸发蒸腾作用、以及初级净第一生产力等模型的输入数据。MOD17A2数据为8天合成的1000米分辨率总初级生产力（GPP）数据产品，投影为正弦曲线投影。"

Gross Primary Productivity (GPP) refers to the amount of organic carbon fixed by organisms (primarily green plants) via photosynthesis per unit time, also known as total primary productivity. GPP determines the initial material and energy entering terrestrial ecosystems.
The MODIS Gross Primary Productivity (GPP) product (MOD17A2) can be used as input data for models such as surface photosynthesis, evapotranspiration, and net primary productivity. The MOD17A2 dataset is an 8-day composite Gross Primary Productivity (GPP) product with a 1000-meter spatial resolution, adopting the sinusoidal projection.

搜集汇总

背景与挑战

背景概述

该数据集为8天合成的1000米分辨率总初级生产力（GPP）数据产品，用于研究陆地生态系统的光合作用和碳固定过程，由中国科学院计算机网络信息中心发布。