Patent ID: 8289518

Claim:
A gas filter correlation radiometry method, comprising the steps of: providing a Gas Filter Correlation Radiometer (GFCR) instrument capable of making a measurement viewing through a gas cell; selecting a gas that (i) is chemically dissimilar from a target gas of interest that is in an atmospheric region being examined by the GFCR instrument, and (ii) possesses light absorption features with a spectral portion of said light absorption features of said gas being at least partially correlated with light absorption features of the target gas of interest; populating the gas cell with said gas; adjusting said measurement viewing through said gas in the gas cell to generate at least one positive correlation for said spectral portion of said light absorption features of said as that is at least partially correlated with said light absorption features of the target gas of interest, wherein the GFCR instrument generates a signal indicative of said at least one positive correlation; and performing a gas filter correlation radiometry application for the target gas of interest using said signal so-generated from said at least one positive correlation.