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

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...

Radiometric profiling of tropospheric temperature, humidity and cloud liquid

We describe a radiometric profiler that provides accurate temperature, humidity and cloud liquid profiles during clear and cloudy conditions. The radiometer observes radiation intensity at 12 microwave frequencies, along with infrared and surface meteorological measurements. Historical radiosonde and neural network or regression methods are used for profile retrieval. We compare radiometric, ra...

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...

Aircraft millimeter-wave passive sensing of cloud liquid water and water vapor during VOCALS-REx

Routine liquid water path measurements and water vapor path are valuable for process studies of the cloudy marine boundary layer and for the assessment of large-scale models. The VOCALS Regional Experiment respected this goal by including a small, inexpensive, upwardpointing millimeter-wavelength passive radiometer on the fourteen research flights of the NCAR C-130 plane, the Gband (183 GHz) Va...