Retrieval of Aerosol Microphysical Properties Using Surface MultiFilter Rotating Shadowband Radiometer (MFRSR) Data: Modeling and Observations
Journal Article
·
· Journal of Geophysical Research. D. (Atmospheres), 110(D9):D09201, doi: 10.1029/2004JD005337
Multi-filter Rotating Shadowband Radiometers (MFRSRs) are widely deployed over the world. These radiometers measure the total, direct, and diffuse components of shortwave, narrowband irradiance at 6 wavelengths. For 5 of these wavelengths, aerosol optical depths and single scattering albedos can be retrieved. We describe here a simple retrieval technique that can significantly extend the capability of the MFRSR to study atmospheric aerosols and can provide a means for simultaneous retrieval of the aerosol size distribution (for an assumed shape) and the imaginary refractive index. This technique is based on measurements of the direct irradiances at two wavelengths (0.415 μm and 0.870 μm) and the diffuse irradiance at 0.415 μm. Our technique requires assumptions regarding the shape of the aerosol size distribution, and the real part of the refractive index, as well as an estimate of the surface albedo at 0.415 μm. Given plausible values of these quantities, sensitivity tests show that successful retrievals of aerosol characteristics can be achieved. The technique has been applied to derive time series of aerosol microphysical properties from MFRSR measurements taken during a single day, April 27, 2003, of the Mexico City Metropolitan Area field campaign. Additionally, MFRSR-derived aerosol properties are in good agreement with AERONET retrievals made also in Mexico City.
- Research Organization:
- Pacific Northwest National Laboratory (PNNL), Richland, WA (US)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC05-76RL01830
- OSTI ID:
- 15020571
- Report Number(s):
- PNNL-SA-42379
- Journal Information:
- Journal of Geophysical Research. D. (Atmospheres), 110(D9):D09201, doi: 10.1029/2004JD005337, Journal Name: Journal of Geophysical Research. D. (Atmospheres), 110(D9):D09201, doi: 10.1029/2004JD005337 Journal Issue: D9 Vol. 110
- Country of Publication:
- United States
- Language:
- English
Similar Records
Retrieval of Aerosol Microphysical Properties from MFRSR Observations
Multifilter Rotating Shadowband Radiometer (MFRSR) Handbook
Multifilter Rotating Shadowband Radiometer (MFRSR) Handbook With subsections for derivative instruments: Multifilter Radiometer (MFR) Normal Incidence Multifilter Radiometer (NIMFR)
Conference
·
Mon May 01 00:00:00 EDT 2006
·
OSTI ID:889063
Multifilter Rotating Shadowband Radiometer (MFRSR) Handbook
Technical Report
·
Sun Feb 06 23:00:00 EST 2011
·
OSTI ID:1020261
Multifilter Rotating Shadowband Radiometer (MFRSR) Handbook With subsections for derivative instruments: Multifilter Radiometer (MFR) Normal Incidence Multifilter Radiometer (NIMFR)
Technical Report
·
Mon Feb 29 23:00:00 EST 2016
·
OSTI ID:1251387