The CAMEX-4 DC-8 Microwave Temperature Profiler (MTP) dataset was collected by the MTP, which is a passive microwave radiometer used during the CAMEX-4 campaign to collect data measurements of thermal emmission from oxygen molecules in the atmosphere for a selection of elevation angles. Current observing frequencies are 56.6 and 58.8 GHz. Measured brightness temperature versus elevation angle is converted to air temperature versus altitude using a statistical retrieval procedure. An altitude temperature profile is produced every three km along the flight path. These data were collected from August 16 - September 25, 2002 from Jacksonville Naval Air Station, Florida.

The University of Alabama in Huntsville (UAH) Mobile Integrated Profiling System (MIPS) is a mobile atmospheric profiling system. It includes a 915 MHz Doppler profiler, lidar ceilometer, 12 channel microwave profiling radiometer, Doppler Sodar, Radio Acoustic Sounding System (RASS), Field Mills, and surface observing station. The 12 channel microwave profiling radiometer provides profiles of temperature, water vapor and liquid water and integrated values of water vapor and liquid water from the surface to 10km every ~ 15 minutes. Cloud base temperature is also measured.

The TCSP ER-2 Microwave Temperature Profiler (MTP) dataset was collected by the ER-2 Microwave Temperature Profiler (MTP), which is a passive microwave radiometer which measures the thermal emission from oxygen molecules in the atmosphere for a selection of elevation angles (normally 10 between +60 and -58 degrees). The current observing frequencies are 55.5, 56.6 and 58.8 GHz. Measured 'brightness temperature' versus elevation angle is converted to air temperature versus altitude using a modified statistical retrieval procedure with a Bayesian component. An altitude temperature profile (ATP) is produced in this manner every 13 seconds or approximately 3 km along the flight path. The ATP can be used to produce a color-coded temperature curtain (CTC) of the temperature field which the ER2 has flown through, and to identify the tropopause location. ATPs can also be used to locate altitudes where the air is cold enough to condense nitric acid or water vapor to form polar stratospheric clouds (PSCs). The TCSP mission collected data for research and documentation of cyclogenesis, the interaction of temperature, humidity, precipitation, wind and air pressure that creates ideal birthing conditions for tropical storms, hurricanes and related phenomena. The goal of this mission was to help us better understand how hurricanes and other tropical storms are formed and intensify.

The CAMEX-3 ER-2 NPOESS Aircraft Sounder Testbed - Microwave Temperature Sounder (NAST-MTS) dataset contains navigation records and microwave spectral radiance measurements taken of tropical cyclones and hurricanes during the third Convection and Moisture Experiment (CAMEX-3). The NAST-MTS contains two microwave radiometer systems covering the spectral ranges of 50 to 56 GHz and provides atmospheric temperature profiles from the flight altitude to the surface.

The CAMEX-4 MIPS Ceilometer dataset was collected by the University of Alabama in Huntsville (UAH) Mobile Integrated Profiling System (MIPS), which is a mobile atmospheric profiling system. It includes a 915 MHz Doppler profiler, lidar ceilometer, 12 channel Microwave Profiling Radiometer (MPR), Doppler Sodar, Radio Acoustic Sounding System (RASS), Field Mills, and surface observing station. This dataset contains 15 minute averaged 3-D wind profiles.The ceilometer gathered backscatter power and up to three cloud base heights.

The Atmospheric Emitted Radiance Interferometer (AERI) was used to make atmospheric temperature and moisture retrievals. AERI provides absolutely calibrated radiances which can be used for forward calculation comparisons of radiosonde and LIDAR (for CAMEX-3, the SRL) profiles and provides a reference to the airborne and ground based remote sensing instruments. Additionally, AERI radiances contain valuable temperature and water vapor information which can be used to retrieve planetary boundary layer thermodynamics. The University of Wisconsin-Madison, Space Science and Engineering Center was responsible for the AERI data collection during CAMEX-3 campaign.