Retrieval of atmospheric optical parameters from ground-based sun-photometer measurements for Zanjan, Iran
نویسندگان
چکیده
منابع مشابه
The effect and correction of aerosol forward scattering on retrieval of aerosol optical depth from Sun photometer measurements
[1] The Sun photometer is widely used to retrieve aerosol optical depth (AOD). In this study, the effect of atmospheric forward scattering on the measurement of direct solar irradiance is analyzed. In most cases, this effect can be safely neglected. However, in the case of heavy dust loading, errors in AOD derived from Sun photometer measurements can be significant which warrants a correction o...
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The Georgia Institute of Technology–Goddard Global Ozone Chemistry Aerosol Radiation and Transport (GOCART) model is used to simulate the aerosol optical thickness t for major types of tropospheric aerosols including sulfate, dust, organic carbon (OC), black carbon (BC), and sea salt. The GOCART model uses a dust emission algorithm that quantifies the dust source as a function of the degree of ...
متن کاملAerosol optical properties retrieved from Sun photometer measurements over Shanghai, China
[1] Using a CIMEL Sun photometer, we conducted continuous observations over the urban area of Shanghai (31 14′N, 121 32′E) from 18 April 2007 to 31 January 2009. The aerosol optical depth (AOD), Angstrom wavelength exponent, single scattering albedo (w0), and aerosol particle size distribution were derived from the observational data. The monthly mean AOD reached a maximum value of 1.20 in June...
متن کاملRemote Sensing of Atmospheric Optical Depth Using a Smartphone Sun Photometer
In recent years, smart phones have been explored for making a variety of mobile measurements. Smart phones feature many advanced sensors such as cameras, GPS capability, and accelerometers within a handheld device that is portable, inexpensive, and consistently located with an end user. In this work, a smartphone was used as a sun photometer for the remote sensing of atmospheric optical depth. ...
متن کاملEstimating surface visibility at Hong Kong from ground-based LIDAR, sun photometer and operational MODIS products.
Hong Kong's surface visibility has decreased in recent years due to air pollution from rapid social and economic development in the region. In addition to deteriorating health standards, reduced visibility disrupts routine civil and public operations, most notably transportation and aviation. Regional estimates of visibility solved operationally using available ground and satellite-based estima...
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ژورنال
عنوان ژورنال: Atmospheric Measurement Techniques
سال: 2011
ISSN: 1867-8548
DOI: 10.5194/amt-4-857-2011