Simultaneous inversion for temperature and water vapor from IMG radiances

Inverting for geophysical parameters from IMG radiances

Radiances observed by the Interferometric Monitor for Greenhouse gases sounder have been used to retrieve temperature, water vapor, and ozone profiles. It is shown that the sounder allows us to simultaneously retrieve stable solutions for temperature and water vapor. Once water vapor and temperature have been retrieved, ozone profile may be estimated on the same fine vertical mesh as water vapo...

Radiometric profiling of temperature, water vapor and cloud liquid water using various inversion methods

We have developed a tunable temperature profiler based on a highly stable synthesizer that can observe at multiple frequencies on the shoulder of the 60 GHz atmospheric oxygen feature. We are developing a similar radiometer to obtain the vertical distribution of water vapor by making observations on the pressure broadened water vapor line from 22 to 29 GHz. Information on cloud liquid water pro...

Robust Variational Inversion: with simulated ATOVS radiances

by Zhiquan Liu and Chengli Qi National Satellite Meteorological Center, China Meteorological Administration Beijing, China Abstract Least-square principal is applicable for dealing with data with Gaussian distribution errors, but it is not satisfying with Non-Gaussian distribution errors which are often the feature of the actual observation data. This study examines a "Robust Variational Invers...

Differential-Absorption Lidar for Water Vapor and Temperature Profiling

Cloud and aerosol properties, precipitable water, and profiles of temperature and water vapor from MODIS

The Moderate Resolution Imaging Spectroradiometer (MODIS) is an earth-viewing sensor that flies on the Earth Observing System (EOS) Terra and Aqua satellites, launched in 1999 and 2002, respectively. MODIS scans a swath width of 2330 km that is sufficiently wide to provide nearly complete global coverage every two days from a polar-orbiting, sun-synchronous, platform at an altitude of 705 km. M...