Results 41 to 50 of about 86,460 (309)

Wet scavenging of soluble gases in DC3 deep convective storms using WRF-Chem simulations and aircraft observations [PDF]

open access: yes, 2016
We examine wet scavenging of soluble trace gases in storms observed during the Deep Convective Clouds and Chemistry (DC3) field campaign. We conduct high-resolution simulations with the Weather Research and Forecasting model with Chemistry (WRF-Chem) of ...
Allen, Dale J   +25 more
core   +2 more sources

Application of an optimal estimation inverse method to GPS/MET bending angle observations [PDF]

open access: yes, 2001
Palmer et al. [2000] describes an optimal estimation inverse method for radio occultation (RO) bending angle measurements to retrieve simultaneously temperature, humidity, and surface pressure; outlines quality control procedures for retrieved profiles ...
Ahmad   +19 more
core   +1 more source

Assessment of GRAS Ionospheric Measurements for Ionospheric Model Assimilation

open access: yesRemote Sensing, 2023
We conducted a study to assess the GNSS (Global Navigation Satellite System) Receiver for Atmospheric Sounding (GRAS) ionospheric data quality by processing Radio Occultation (RO) observations of ionospheric products.
M. M. Hoque   +8 more
doaj   +1 more source

Evaluation of radio-wave method of soil massif

open access: yesГеофизический журнал, 2014
Analysis of theoretical results given in the paper of S. T. Maklovich and Yu. N. Kozulin "On energy propagation of electromagnetic field from dipole source in presence of conducting halfspace" has been proposed. On the base of an assumption of similarity
A.M. Kudelya
doaj   +1 more source

Observations of ionospheric disturbances via U-shaped traces on ionograms

open access: yesГеодинамика и тектонофизика, 2019
The ionospheric vertical sounding is a basic technique for studying the Earth’s ionosphere. Taking into account the fact that conditions for propagation of radio waves depend on the operating frequency, diagnostics of the ionosphere is performed using ...
O. A. Laryunin
doaj   +1 more source

A Real-Time Millimeter-Wave Phased Array MIMO Channel Sounder

open access: yes, 2017
In this paper, we present a novel real-time MIMO channel sounder for 28 GHz. Until now, the common practice to investigate the directional characteristics of millimeter-wave channels has been using a rotating horn antenna.
Bas, C. Umit   +7 more
core   +1 more source

Study of the moisture content of the troposphere over the ULAB (Ulaanbaatar) monitoring station using GPS measurement, radio sounding and surface meteorology data

open access: yesGeodynamics & Tectonophysics, 2019
The water vapor content is calculated in a conditional vertical column to the tropopause level from remote sensing data on the lower atmosphere. The calculations are based on GPS measurements, surface meteorological data and vertical meteorological ...
M. Dembelov, Y. Bashkuev
semanticscholar   +1 more source

Observation of the structure of the urban boundary layer with different ceilometers and validation by RASS data

open access: yesMeteorologische Zeitschrift, 2009
Urban air quality assessment requires the knowledge of the temporal and spatial structure of the mixing layer, because this structure controls the vertical dilution of near-surface pollutants.
Stefan Emeis   +2 more
doaj   +1 more source

Profiling water vapor mixing ratios in Finland by means of a Raman lidar, a satellite and a model [PDF]

open access: yesAtmospheric Measurement Techniques, 2017
We present tropospheric water vapor profiles measured with a Raman lidar during three field campaigns held in Finland. Co-located radio soundings are available throughout the period for the calibration of the lidar signals.
M. Filioglou   +11 more
doaj   +1 more source

Mathematical description of imaging processes in ultra-wideband active aperture synthesis systems using stochastic sounding signals

open access: yesРадіоелектронні і комп'ютерні системи, 2021
Mathematical models of the fields of stochastic ultra-wideband signals that are necessary for solving problems of aperture synthesis of images using active radar methods are presented.
Valeriy Volosyuk   +6 more
doaj   +1 more source

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