aerinf: AERI Noise Filtered

Quicklook image showing the time series of the radiance in window channels for Channel 1 (900 cm-1) and Channel 2 (2600 cm-1) in RS mode for NSA S01 data.
Quicklook image showing the time series of the radiance in window channels for Channel 1 (900 cm-1) and Channel 2 (2600 cm-1) in RS mode for NSA S01 data.
The ARM Facility is in the process of improving the temporal resolution of the AERI to collect a sky spectrum every 15-30 seconds. The increased temporal resolution results in less averaging performed by the instrument, and hence the larger component of random noise in the sky spectra. This VAP uses the high correlation in the observed radiance across the spectrum to reduce the uncorrelated random error in the data using principal component analysis (PCA). The VAP automatically determines the appropriate number of principal components to use in the reconstruction to eliminate as much random noise as possible. A significant reduction in the uncorrelated random error in the data has been proven for both regular temporal data and rapid-sample data. For more details, see A Principal Component Analysis Noise Filter Value-Added Procedure to Remove Uncorrelated Noise from Atmospheric Emitted Radiance Interferometer (AERI) Observations.

Measurements

Locations

  • Fixed
  • AMF1
  • AMF2
  • AMF3

Components

aeri: Atmospheric Emitted Radiance Interferometer

Related Publications

2012

Oreopoulos L, E Mlawer, J Delamere, T Shippert, J Cole, B Fomin, M Iacono, Z Jin, J Li, J Manners, P Raisanen, F Rose, Y Zhang, MJ Wilson, and WB Rossow. 2012. "The Continual Intercomparison of Radiation Codes: Results from Phase I." Journal of Geophysical Research: Atmospheres, 117(D6), 10.1029/2011jd016821.

Sivaraman C. 2012. ARM Climate Research Facility Quarterly Value-Added Product Report First Quarter: October 01-December 31, 2011. U.S. Department of Energy. DOE/SC-ARM-12-002.

Sivaraman C. 2012. ARM Climate Research Facility Quarterly Value-Added Product Report Fourth Quarter: July 1–September 30, 2012. U.S. Department of Energy. DOE/SC-ARM-12-022.

2011

Sivaraman C. 2011. ARM Climate Research Facility Quarterly Value-Added Product Report January 1–March 30, 2011. DOE ARM Climate Research Facility. DOE/SC-ARM-11-011.

Sivaraman C. 2011. ARM Climate Research Facility Quarterly Value-Added Product Report Third Quarter: April 01–June 30, 2011. U.S. Department of Energy. DOE/SC-ARM-11-021.

Sivaraman C. 2011. ARM Climate Research Facility Quarterly Value-Added Product Report Fourth Quarter: July 01–September 30, 2011. U.S. Department of Energy. DOE/SC-ARM-11-023.


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