In this study, we compare specific humidity profiles derived from Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) radio occultation (RO) from August to November 2006 with those from different types of radiosonde and from ECMWF global analysis. Comparisons show that COSMIC specific humidity data agree well with ECMWF analysis over different regions of the world f...

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...

A bipolar air conductivity instrument is described for use with a standard disposable meteorological radiosonde package. It is intended to provide electrical measurements at cloud boundaries, where the ratio of the bipolar air conductivities is affected by the presence of charged particles. The sensors are two identical Gerdien-type electrodes, which, through a voltage decay method, measure pos...

Simultaneous intensive radiosonde observation at three stations over northeast (Sylhet), central (Dhaka), and northwest (Bogra) Bangladesh was analyzed to describe a three-dimensional thermodynamic and airflow structures on 25 April 2010, in which a distinct nocturnal rainfall occurred at Sylhet. As the observation was conducted in the daytime, the observed structures represent convectively ina...

in recent years, extraction of atmospheric temperature and humidity profiles from thermal bands of satellite images is a common practice. the most deployed images for this task have been acquired by moderate resolution imaging spectroradiometer (modis). this sensor which is onboard of terra and aqua platforms consists of a spectroradiometer with 36 bands in visible (vis), near infra-red (nir) u...

Weather balloons are high-altitude meteorological particularly used for carrying scientific payloads into the upper atmosphere. These data obtained by using an instrument called as radiosonde which is attached to helium filled weather balloon measure it ascends up For more than 100 years, have given valuable information climate and research. In this paper, module designed with negligible risk o...