高分四号遥感数据在环境监测中的应用研究

Application Research of GF-4 Satellite Data in Environmental Survey and Monitoring

高分四号遥感卫星能够获取全色、多光谱以及中波红外谱段的卫星影像。农作废弃物焚烧较大程度上影响了空气的质量,威胁人们的健康。农业废弃物焚烧所产生的雾霾、粉尘等汇聚到空气中形成气溶胶。气溶胶的厚度是测量空气质量的一项重要参数。高分四号遥感卫星所具有的空间范围大、获取卫星影像高效以及中波红外火点敏感的特点可较好地解决当前农业废弃物焚烧与雾霾监测能力不足的情况。本文对高分四号卫星数据进行分析与处理,进行了火点提取及气溶胶反演。

GF-4 satellite can acquire satellite images of panchromatic,multi-spectral and mid-wave infrared spectrum.The incineration of agricultural wastes greatly affects the air quality and poses a threat to people’s health.The smog and dust generated by the incineration of agricultural wastes converge into the air to form an aerosol.The thickness of the aerosol is an important parameter for measuring air quality.The large spatial range of this satellite,efficient acquisition of satellite images and the characteristic of infrared wave fire point sensitivity can better solve the current situation of insufficient monitoring of agricultural waste incineration and smog.This article analyzes and processes the GF-4 satellite data and performs fire point extraction and aerosol inversion.