do Rosário Nilton, Yamasoe Márcia Akemi, Sayão André, Siqueira Ricardo
Institute of Astronomy, Geophysics and Atmospheric Sciences, University of São Paulo, Rua do Matão 1226, São Paulo, SP, Brazil.
Appl Opt. 2008 Mar 20;47(9):1171-6. doi: 10.1364/ao.47.001171.
Multifilter rotating shadowband radiometer (MFRSR) calibration values for aerosol optical depth (AOD) retrievals were determined by means of the general method formulated by Forgan [Appl. Opt.33, 4841 (1994)] at a polluted urban site. The obtained precision is comparable with the classical method, the Langley plot, applied on clean mountaintops distant of pollution sources. The AOD retrieved over São Paulo City with both calibration procedures is compared with the Aerosol Robotic Network data. The observed results are similar, and, except for the shortest wavelength (415 nm), the MFRSR's AOD is systematically overestimated by approximately 0.03.
在一个受污染的城市站点，通过福尔根[《应用光学》33, 4841 (1994)]提出的通用方法确定了用于反演气溶胶光学厚度（AOD）的多滤光片旋转阴影带辐射计（MFRSR）的校准值。所获得的精度与应用于远离污染源的清洁山顶的经典方法——朗利图相当。将两种校准程序反演得到的圣保罗市的AOD与气溶胶机器人网络数据进行了比较。观测结果相似，并且除了最短波长（415纳米）外，MFRSR的AOD系统性地高估了约0.03。
