红外与毫米波学报2024，Vol.43Issue(3)：377-392,16.DOI:10.11972/j.issn.1001-9014.2024.03.012
一种应用于卫星中红外遥感的辐射传输简化计算方案
A simplified parameterization scheme of mid-infrared radiative transfer for satellite remote sensing
摘要
Abstract
As the connecting spectral band of visible-near infrared and thermal infrared,mid-infrared(MIR)combines the reflective characteristics of short-wave radiation and the emissive characteristics of long-wave radiation,which is of great importance for application scenarios such as temperature detection and target identification.At present,the radia-tive transfer(RT)calculation of the MIR spectrum still faces the problem of many input background parameters which are not easy to obtain.Based on this,a simplified parameterization scheme of MIR RT for satellite remote sensing is proposed.Using the MODTRAN model(MM),the background surface and atmospheric parameters involved in the MIR daytime RT process were quantitatively simulated and analyzed to obtain the key parameters affecting RT,from which an MM-based parameter simplified scheme(SS)was developed.The total radiance calculated by SS and MM is compared and validated at the center wavelength of 6 MIR channels of MODIS,and the RMSE is less than 0.004399 with high accuracy.The SS only relies on surface temperature,surface emissivity,atmospheric profile type,water va-por and cloud optical thickness,and does not require input of aerosol,CO2 and O3 data.Compared with the MM,the SS reduces the input parameters from 8 categories to 5 categories,and the calculation time efficiency increases by 9.02%.With limited computational resources,the SS proposed in this paper can provide support for the application ar-eas such as fast processing of MIR images and remote sensing simulation of large scenes.关键词
中红外(MIR)谱段/辐射传输(RT)计算/背景参数/简化方案(SS)Key words
mid-infrared(MIR)spectrum/radiative transfer(RT)calculation/background parameters/simplified scheme(SS)分类
信息技术与安全科学引用本文复制引用
姚前,庄齐枫,周鹏,张灏,陈震霆,李正强,许华,樊程,李莉,王思恒,郑杨,徐文斌,侯伟真,徐敬海..一种应用于卫星中红外遥感的辐射传输简化计算方案[J].红外与毫米波学报,2024,43(3):377-392,16.基金项目
"一带一路"国际科学组织联盟(ANSO-CR-KP-2020-09) （ANSO-CR-KP-2020-09）
云南省李正强专家工作站(202205AF150031) （202205AF150031）
中国空间技术研究院CAST基金(YGB-1-2022-0102) Supported by the Alliance of International Science Organizations(ANSO-CR-KP-2020-09) （YGB-1-2022-0102）
Li Zhengqiang Expert Workstation of Yunnan Province(202205AF150031) （202205AF150031）
CAST foundation of China Academy of Space Technology(YGB-1-2022-0102) （YGB-1-2022-0102）
