RT info:eu-repo/semantics/article
T1 Analysis of daytime and night-time aerosol optical depth from solar and lunar photometry in Valladolid (Spain)
A1 Herrero del Barrio, Celia
A1 Mateos Villán, David
A1 Román Díez, Roberto
A1 González Caton, Ramiro
A1 Herrero Anta, Sara
A1 González Fernández, Daniel
A1 Calle Montes, Abel
A1 Toledano Olmeda, Carlos
A1 Cachorro Revilla, Victoria Eugenia
A1 Frutos Baraja, Ángel Máximo de
K1 Photometry
K1 Fotometría
K1 Aerosol optical depth
K1 Aerosols
K1 Aerosoles
K1 Atmospheric aerosols - Remote sensing
K1 Climatology
K1 Atmospheric sciences
K1 Óptica atmosférica
K1 2502 Climatología
K1 2501 Ciencias de la Atmósfera
AB Aerosol optical depth (AOD) at night-time has become a hot topic in recent years due to the development of new instruments recording accurate ground-based lunar irradiance measurements, and the development of calibration methods and extraterrestrial irradiance models adapted to lunar photometry. This study uses all daytime and night-time AOD data available at Valladolid (Spain) from October 2016 to March 2022 in order to analyze its behavior and the added contribution of night data. The annual, monthly and daily AOD evolution is studied comparing daytime and night-time values and checking the correlation between them. For this purpose, the daily averages are computed, showing an annual pattern, with low AOD values throughout the year (mean value of AOD at 440 nm: 0.122), where winter months have the lower and summer the higher values, as observed in previous studies. All these AOD values are modulated by frequent desert dust events over the Iberian Peninsula, with a strong influence on daily and monthly mean values in February and March, where the strongest desert outbreaks occurred. The added new data confirm these results and the good correlation between daytime and night-time data. Also, a complete daily evolution is shown, observing that AOD and Ångström exponent (AE) mean values vary by only ±0.02 in 24 h, with a maximum value at 06:00 UTC and minimum at 18:00 UTC for both parameters.
PB MDPI
SN 2072-4292
YR 2023
FD 2023
LK https://uvadoc.uva.es/handle/10324/67123
UL https://uvadoc.uva.es/handle/10324/67123
LA eng
NO Remote Sensing, 2023, Vol. 15, Nº. 22, 5362
NO Producción Científica
DS UVaDOC
RD 17-may-2024