干旱区生态环境知识资源中心(Arid): Correction of a lunar-irradiance model for aerosol optical depth retrieval and comparison with a star photometer

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DOI	10.5194/amt-13-6293-2020
	Correction of a lunar-irradiance model for aerosol optical depth retrieval and comparison with a star photometer
	Roman, Roberto; Gonzalez, Ramiro; Toledano, Carlos; Barreto, Africa; Perez-Ramirez, Daniel; Benavent-Oltra, Jose A.; Olmo, Francisco J.; Cachorro, Victoria E.; Alados-Arboledas, Lucas; de Frutos, Angel M.
通讯作者	Roman, R
来源期刊	ATMOSPHERIC MEASUREMENT TECHNIQUES
ISSN	1867-1381
EISSN	1867-8548
出版年	2020
卷号	13 期号:11 页码:6293-6310
英文摘要	The emergence of Moon photometers is allowing measurements of lunar irradiance over the world and increasing the potential to derive aerosol optical depth (AOD) at night-time, which is very important in polar areas. Actually, new photometers implement the latest technological advances that permit lunar-irradiance measurements together with classical Sun photometry measurements. However, a proper use of these instruments for AOD retrieval requires accurate time-dependent knowledge of the extraterrestrial lunar irradiance over time due to its fast change throughout the Moon's cycle. This paper uses the RIMO (ROLO Implementation for Moon's Observation) model (an implementation of the ROLO - RObotic Lunar Observatory - model) to estimate the AOD at night-time assuming that the calibration of the solar channels can be transferred to the Moon by a vicarious method. However, the obtained AOD values using a Cimel CE318-T Sun-sky-Moon photometer for 98 pristine nights with low and stable AOD at the Izafia Observatory (Tenerife, Spain) are not in agreement with the expected (low and stable) AOD values estimated by linear interpolations from daytime values obtained during the previous evening and the following morning. Actually, AOD calculated using RIMO shows negative values and with a marked cycle dependent on the optical air mass. The differences between the AOD obtained using RIMO and the expected values are assumed to be associated with inaccuracies in the RIMO model, and these differences are used to calculate the RIMO correction factor (RCF). The RCF is a proposed correction factor that, multiplied by the RIMO value, gives an effective extraterrestrial lunar irradiance that provides AOD closer to the expected values. The RCF varies with the Moon phase angle (MPA) and with wavelength, ranging from 1.01 to 1.14, which reveals an overall underestimation of RIMO compared to the lunar irradiance. These obtained RCF values are modelled for each photometer wavelength to a second-order polynomial as a function of MPA. The AOD derived by this proposed method is compared with the independent AOD measurements obtained by a star photometer at Granada (Spain) for 2 years. The mean of the Moon-star AOD differences is between -0.015 and -0.005, and the standard deviation (SD) is between 0.03 and 0.04 (which is reduced to about 0.01 if 1 month of data affected by instrumental issues is not included in the analysis) for 440, 500, 675, and 870 nm; however, for 380 nm, the mean and standard deviation of these differences are higher. The Moon-star AOD differences are also analysed as a function of MPA, showing no significant dependence.
类型	Article
语种	英语
开放获取类型	Green Published, Green Submitted, gold
收录类别	SCI-E
WOS记录号	WOS:000595504300001
WOS关键词	QUALITY-CONTROL ALGORITHM ; DESERT DUST ; LIDAR MEASUREMENTS ; SIZE PROPERTIES ; AERONET ; CALIBRATION ; NIGHTTIME ; MOON ; INFORMATION ; RADIOMETER
WOS类目	Meteorology & Atmospheric Sciences
WOS研究方向	Meteorology & Atmospheric Sciences
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/327832
作者单位	[Roman, Roberto; Gonzalez, Ramiro; Toledano, Carlos; Barreto, Africa; Cachorro, Victoria E.; de Frutos, Angel M.] Univ Valladolid, Grp Atmospher Opt GOA UVa, Valladolid 47011, Spain; [Barreto, Africa] Meteorol State Agcy Spain AEMET, Izana Atmospher Res Ctr, Izana, Spain; [Barreto, Africa] Cimel Elect, Paris, France; [Perez-Ramirez, Daniel; Benavent-Oltra, Jose A.; Olmo, Francisco J.; Alados-Arboledas, Lucas] Univ Granada, Dept Appl Phys, Granada 18071, Spain; [Perez-Ramirez, Daniel; Benavent-Oltra, Jose A.; Olmo, Francisco J.; Alados-Arboledas, Lucas] IISTA CEAMA, Andalusian Inst Earth Syst Res, Granada, Spain
推荐引用方式 GB/T 7714	Roman, Roberto,Gonzalez, Ramiro,Toledano, Carlos,et al. Correction of a lunar-irradiance model for aerosol optical depth retrieval and comparison with a star photometer[J],2020,13(11):6293-6310.
APA	Roman, Roberto.,Gonzalez, Ramiro.,Toledano, Carlos.,Barreto, Africa.,Perez-Ramirez, Daniel.,...&de Frutos, Angel M..(2020).Correction of a lunar-irradiance model for aerosol optical depth retrieval and comparison with a star photometer.ATMOSPHERIC MEASUREMENT TECHNIQUES,13(11),6293-6310.
MLA	Roman, Roberto,et al."Correction of a lunar-irradiance model for aerosol optical depth retrieval and comparison with a star photometer".ATMOSPHERIC MEASUREMENT TECHNIQUES 13.11(2020):6293-6310.