US 11,885,787 B2
Method and device for measuring atmospheric parameters to estimate the quality of the air and the climate variables
Eric Pequignot, Pompertuzat (FR)
Assigned to CENTRE NATIONAL D'ETUDES SPATIALES, Paris (FR)
Filed by Centre National d'Etudes Spatiales, Paris (FR)
Filed on Feb. 25, 2021, as Appl. No. 17/185,353.
Application 17/185,353 is a continuation of application No. PCT/FR2019/051961, filed on Aug. 26, 2019.
Claims priority of application No. 18/57683 (FR), filed on Aug. 27, 2018.
Prior Publication US 2021/0181173 A1, Jun. 17, 2021
Int. Cl. G01N 33/00 (2006.01); G01N 15/06 (2006.01); G01N 21/31 (2006.01); G01W 1/06 (2006.01); G01N 21/17 (2006.01)
CPC G01N 33/0075 (2013.01) [G01N 15/06 (2013.01); G01N 21/31 (2013.01); G01W 1/06 (2013.01); G01N 2015/0693 (2013.01); G01N 2021/1795 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A method for measuring at least one atmospheric parameter, the method comprising:
simultaneously acquiring, as an acquisition step, a series of spectral images of Earth's atmosphere with a plurality of optical systems, wherein the plurality of optical systems are located in the Earth's atmosphere, fixed relative to an earth frame reference, oriented such that the spectral images that they acquire contain measurement data of the at least one atmospheric parameter along respective lines of sight of the optical systems, and arranged such that, during the acquisition step, there is at least one point of intersection between two lines of sight, such that two spectral images which are simultaneously acquired along the two lines of sight contain mutual measurement data of the at least one atmospheric parameter, wherein the mutual measurement data is representative of the at least one atmospheric parameter at a point of the Earth's atmosphere corresponding to the point of intersection; and
changing, as a scanning step, orientation of the optical systems, wherein the acquisition step and the scanning step are repeated so as to acquire a succession of series of spectral images comprising a set of mutual measurement data representative of the at least one atmospheric parameter at a set of points of the Earth's atmosphere.