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Comparison of AIRS Retrievals and Best Estimated Profiles at ARM Cart Site

This document presents a detailed analysis of AIRS (Atmospheric Infrared Sounder) retrievals in comparison to the best estimated profiles obtained at the ARM (Atmospheric Radiation Measurement) Cart Site. Using examples with specific SR values, we highlight the unique capabilities of hyperspectral infrared observations in capturing vertical structures and fine-scale features in the atmosphere. The study also includes cloud-clearing techniques using MODIS and ABI/HES data, demonstrating their effectiveness in enhancing retrievals in cloudy conditions.

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Comparison of AIRS Retrievals and Best Estimated Profiles at ARM Cart Site

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  1. AIRS retrieval versus best estimated profile (true) at ARM Cart Site: example 1 (SR = 0.5 ~ 1.0 cm-1) First guess Physical First guess Physical Vertical Structure: only hyperspectral IR can do ! Inversion

  2. AIRS retrieval versus best estimated profile (true) at ARM Cart Site: example 2 First guess Physical First guess Physical Q fine structure T fine structure

  3. AIRS clear (13.5 km) AIRS clear + CC-S (13.5 km) 17Sept 2003g184 Clear Neighbor MODIS clear (1 km) Cloud-cleared Cloud contaminated ABI/HES for SFOVcloudy sounding 2: cloud-clearing

  4. 06Sept 2002g193 AIRS clear mask BT(K) SFOV Cloudy sounding demonstration Cloudy SFOV Retrieval (MODIS/AIRS) ABI/HES for SFOV cloudy sounding 2: direct approach

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