SRRL AOD Instrument Descriptions and Histories
Model | Measurement Notes (below) |
Units | Install Date |
Removal Date |
Current SN |
Current CF |
---|---|---|---|---|---|---|
(calc) | Aerosol Optical Depth (AOD) | unitless | 06/11/2013 | - | - | - |
Aerosol Optical Depth at 400, 500, 675, 870, and 1020nm. These are calculated directly on the sun. | ||||||
(calc) | Almucantar Aerosol Optical Depth (AOD-DIF) | unitless | 06/11/2013 | 12/19/2021 | - | - |
Almucantar Aerosol Optical Depth at 400, 500, 675, 870, and 1020nm. These are calculated at several scattering angles away from the sun. | ||||||
(calc) | Single Scattering Albedo (SSA) | unitless | 06/11/2013 | - | - | - |
Single Scattering Albedo at 400, 500, 675, 870, and 1020nm. | ||||||
(calc) | Asymmetry | unitless | 06/11/2013 | - | - | - |
Asymmetry Factor at 400, 500, 675, 870, and 1020nm. | ||||||
(calc) | m | unitless | 06/11/2013 | - | - | - |
Real part of refractive index at each wavelength. | ||||||
(calc) | k | unitless | 06/11/2013 | - | - | - |
Imaginary part of refractive index at each wavelength. | ||||||
(calc) | α (alpha) | unitless | 06/11/2013 | - | - | - |
Angstrom exponent | ||||||
(calc) | β (beta) | unitless | 06/11/2013 | - | - | - |
Angstrom turbidity coefficient, i.e. calculated aerosol optical depth at 1000nm. | ||||||
(calc) | IDCR and IDCI | unitless | 07/01/2015 | 12/19/2021 | - | - |
Zero means that the inversion procedure was not able to retrieve the real or imaginary part and fixed values have been assumed. One means that the inversion was able to retrieved these values. | ||||||
(calc) | Correction | unitless | 06/11/2013 | 12/19/2021 | - | - |
Unknown correction value | ||||||
(calc) | AOD Flag | unitless | 06/11/2013 | 12/19/2021 | - | - |
Flag that indicates 0 for AOD and 1 for AOD-DIF | ||||||
(calc) | Retrieval error | unitless | 06/11/2013 | 12/19/2021 | - | - |
The retrieval error as a fraction. Multiply by 100 to change to percent. | ||||||
(calc) | Cloud Flag | unitless | 04/30/2013 | - | - | - |
Flag that indicates 1 for cloudy and 0 for clear. | ||||||
(calc) | Wavelength Count | unitless | 04/01/2013 | - | - | - |
Number of wavelengths found in daily NetCDF file downloaded from SKYNET. | ||||||
(calc) | Radius Count | unitless | 04/30/2013 | - | - | - |
Number of radius values found in daily NetCDF file downloaded from SKYNET. | ||||||
(calc) | Volume Size Distributions | nm3/nm2 | 04/30/2013 | - | - | - |
Volume size distributions are obtained at 20 fixed values of radius at:
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Notes:
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[NREL] [MIDC] [SRRL AOD]