The AIRs Team Science Data Validation Plan
This document describes the required validation activities for the AIRS/AMSU/HSB instrument suite in the post-launch period.
EOS AIRS validation science↗
Engineering topics
Aumann, H.
Publications and source records attributed to Aumann, H..
Instrument Performance of Airs
AIRS, the Atmospheric Infrared Sounder on the Earth Observing System (EOS) PM spacecraft, is an infrared radiometer which covers the 3.7-15.4 micron spectral range with spectral resolving power better than 1000.
infrared spectrometer remote sensing Earth observi↗
AIRS Algorithm Theoretical Basis Document Level 1b, Part 2: Visible/Near-Infrared Channels
The Level 1b Algorithm Theoretical Basis Document (ATBD) describes the theoretical basis of the algorithms used to convert engineering units or data numbers from the Atmospheric Infrared Sounder (AIRS), the Advanced Microwave Sounding Unit (AMSU), and the Humidity Sounder Brazil (HSB) to physical radiances.
AIRS ATBD Level 1-b visible↗
Simulation studies of improved sounding systems
Two instrument designs for indirect satellite sounding of the atmosphere in the infrared are represented by the High Resolution Infra-Red Sounder, Model 2 (HIRS-2) and by the Advanced Meteorological Temperature Sounder (AMTS). The relative capabilities of the two instruments were tested by simulating satellite measurements from a group of temperature soundings, allowing the two participants to retrieve the temperature profiles from the simulated data, and comparing the results with the original temperature profiles. Four data sets were produced from radiosondes data extrapolated to a suitable altitude, representing continents and oceans, between 30S and 30N. From the information available, temperature profiles were retrieved by two different methods, statistical regression and inversion of the radiative transfer equation. Results show the consequence of greater spectral purity, concomitant increase in the number of spectral intervals, and the better spatial resolution in partly clouded areas. At the same time, the limitation of the HIRS-2 without its companion instrument leads to some results which should be ignored in comparing the two instruments. A clear superiority of AMTS results is shown.
Yates, H.↗