Results 201 to 210 of about 2,075 (224)

Observational constraints from global ice-phase fraction indicate moderate climate sensitivity. [PDF]

open access: yesSci Adv
Zhou R   +10 more
europepmc   +1 more source

Using meteorological data for clear sky and cloud attenuation in Belgium and India

2019 URSI Asia-Pacific Radio Science Conference (AP-RASC), 2019
Future High Throughput Satellite Communication Systems and Earth Observation Satellite Data Download foresee the use of frequencies in Ka band and above because those frequency bands offer advantages in terms of bandwidth and capacity. In that frequency range, the degradation due to the troposphere becomes important and the designers need a better ...
Gargi Rakshit   +3 more
openaire   +1 more source

Numerical Weather Prediction Models for the Estimate of Clear-Sky Attenuation Level in Alphasat Beacon Measurement

12th European Conference on Antennas and Propagation (EuCAP 2018), 2018
With the move of satellite systems towards Ka and Q/V bands, the Alphasat TDP5 Aldo Paraboni scientific experiment aims to characterize atmospheric attenuation in those bands. However, during the retrieval of the attenuation from the measured beacon signal, the clear-sky contribution to attenuation is lost.
Quibus, Laurent   +3 more
openaire   +2 more sources

Statistics of clear sky atmospheric attenuation at 29.9 GHz at Tropical Region Amritsar (INDIA)

2005 Asia-Pacific Microwave Conference Proceedings, 2006
The paper presents the monthly variation of clear sky attenuation at 29.9 GHz. The measurements from 29.9 GHz radiometer using a metallic reflector sheet have been used for the purpose.
P. Sharma, I.S. Hudiara, M.L. Singh
openaire   +1 more source

Assessment of clear sky atmospheric attenuation procedures for propagation application

2006
Measurements in clear sky conditions carried out with different instruments were used to assess the suitability of radiometers for propagation studies at millimeter wavelengths. To this aim, long term statistics of Integrated Water Vapor Content (V), Integrated Liquid Water Content (L) and the corresponding attenuation contributions at different ...
CAPSONI, CARLO   +3 more
openaire   +1 more source

Worldwide performance assessment of 95 direct and diffuse clear-sky irradiance models using principal component analysis

Renewable and Sustainable Energy Reviews, 2021
Jamie M Bright   +2 more
exaly  

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