空基遥感植被监测概述

Overview of vegetation monitoring using aerial platforms remote sensing

空基遥感(高塔平台或高处建筑物搭载多种监测仪器)具有时空分辨率高、不受天气状况影响的优势,可作为连接地面观测网络与卫星遥感影像的“桥梁”,解决二者时间、空间不匹配的问题。本研究探讨了空基高光谱遥感在植被监测方面的可行性和优势,并以通辽空基遥感观测站监测结果为基础,给出空基遥感基本植被参数反演结果实例,说明空基遥感在植被监测方面的可行性,并对空基遥感的方向和挑战进行了分析。空基遥感在小范围精细化动态监测和植被异常快速发现方面具有优势,但是由于固定站点观测的观测距离有限,空基站点选择方面需要根据观测目的和研究区域情况综合考虑。同时,通过空基高时空分辨率和卫星的全区域监测相结合,可实现优势互补,有效弥补当前单一卫星遥感监测时效性不足、精度不够等短板。

Aerial platforms remote sensing(high tower platforms or high buildings equipped with a variety of monitoring instruments)has the advantages of high spatial and temporal resolution and is not affected by weather conditions,it can be used as a“bridge”connecting ground observation network and satellite remote sensing image to solve the problem of time and space mismatch between them.This study discussed the feasibility and advantages of aerial platforms remote sensing in vegetation monitoring,the examples of tower-based remote sensing monitoring are given based on the data of Tongliao observation station,the feasibility of aerial platforms remote sensing in vegetation monitoring was explained,and the direction and challenge of existing aerial platforms remote sensing were analyzed.Aerial platforms remote sensing has advantages in fine-grained dynamic monitoring and rapid detection of vegetation anomalies in small-range.However,due to its limited observation distance in a fixed station,the site selection needs to consider comprehensively according to the observation targets and research areas.However,Multi-platform data can be combined with each other,and aerial platforms remote sensing high spatial-temporal resolution combined with large-area monitoring of satellites can complement each other's advantages,and effectively make up for the shortcomings of current satellite monitoring such as insufficient timeliness and insufficient precision.