Michael R. Gunson

TL;DR: Aura, the last of the large Earth Observing System observatories, was launched on July 15, 2004 and all of the instruments are performing as expected, and HIRDLS will likely be able to deliver most of their planned data products.

TL;DR: The methodology is based on the maximum a posteriori estimate, which mathematically requires the minimization of the difference between observed spectral radiances and a nonlinear model of radiative transfer of the atmospheric state subject to the constraint that the estimated state must be consistent with an a priori probability distribution for that state.

TL;DR: The Orbiting Carbon Observatory-2 (OCO-2) carries and points a three-channel imaging grating spectrometer designed to collect high-resolution, co-boresighted spectra of reflected sunlight within the molecular oxygen (O2) A-band at 0.765 microns and the carbon dioxide (CO2) bands at 1.61 and 2.06 microns.

TL;DR: In this article, the authors used the mean age of the air from the SF6 measurements and showed how stratospheric lifetimes of the other species may be derived semiempirically from their observed gradients with respect to mean age at the extratropical tropopause.

TL;DR: In this article, the first major release of the OCO2 retrieval algorithm (B7r) and X_(CO2) from OCO-2's primary ground-based validation network: the Total Carbon Column Observing Network (TCCON) were compared.