Results 51 to 60 of about 561,644 (183)

Revisiting bare‐ground evaporation in a high‐resolution numerical weather prediction system

Quarterly Journal of the Royal Meteorological Society, EarlyView.
An improved method is proposed to parameterize evaporation in numerical weather prediction models. The figure shows dew‐point temperature forecast error (standard deviation of forecast error and bias) versus lead time over the North Plains region during spring 2022 for three parameterizations: CTL, the α$$ \alpha $$ method of Jacquemin and Noilhan; IFS:
Vincent Fortin, Marc Verville, Vincent Vionnet, Marco Carrera, Dorothée Charpentier   +4 more
wiley   +1 more source

A delay model for satellite constellation networks with inter-satellite links [PDF]

, 2009
Within this paper we examine a non-geostationary satellite constellation network with inter-satellite links (ISLs) for global air traffic control (ATC) and air passenger communication (APC).
Romain Hermenier, Anton Donner, Kißling, Christian, Donner, Anton, Hermenier, Romain, Christian Kissling   +5 more
core   +1 more source

Research on Protection Distances for Interference Between Earth Stations——Protection Distances for Interference from Fixed-SateIIite Earth Stations to Space Research Earth Stations

Dianxin kexue, 2014
Fixed-satellite service earth stations and space research service earth stations parameters in the 8 400～8 500 MHz band were introduced.Then the interference from fixed-satellite earth stations to space research earth stations was examined and the ...
Jianxin Li, Wenhan Yang
doaj   +2 more sources

Three‐Year Propagation Experiment at Ku‐, Ka‐, and Q‐Band in French West Indies

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT From January 2021 to December 2023, the Office National d'Etudes et de Recherches Aérospatiales (ONERA) and the Centre National d'Etudes Spatiales (CNES) conducted a three‐year Earth‐space propagation measurement campaign in Guadeloupe. The experiment used beacon receivers deployed in Pointe‐à‐Pitre airport to record signals at 11.2, 19.7, and
Jean‐Pascal Monvoisin, Laurent Castanet, Laurent Féral, Xavier Boulanger   +3 more
wiley   +1 more source

Precipitation Estimation: From the RAO to EURAINSAT and Beyond [PDF]

, 2004
The key objective of the project "Use of the MSG SEVIRI channels in a combined SSM/I, TRMM and geostationary IR method for rapid updates of rainfall" is the development of algorithms for rapid-update of satellite rainfall estimations at the geostationary
Poiares Baptista, J.P.V., Mantovani, S., Sanderson V., Buzzi, A., Levizzani V., J. Kidd, Giuliani, G., Cattani E., Mantovani S., Tassa, A., Smith E. A., Bauer, P., Cimini, D., Prodi, F., Fantini, M., Purdom J. F. W., D. Capacci, Natali S., G. Messeri, Hinsman D. E., P. Malguzzi, Vicente G. A., Medaglia, C.M., Cattani, E., M. Celano, Adamo C., Battaglia A., C. Adamo, S. Dietrich, J. Steinwagner, Poli V., Torricella F., Levizzani, V., Torricella, F., Purdom, J.F.W., F. S. Marzano, Steinwagner J., PORCU', Federico, Pasqui M., Kniveton, D., Villani M. G., Schmelz J., A. Mugnai, Celano, M., Meneguzzo F., Marzano, F.S., J. Schmetz, S. Pinori, Cimini D., Lahav, R., Alberoni P. P., Tapiador F. J., Rosenfeld, D., Tripoli G. J., Porcù, F., Ortolani, A., P. Bauer, Caracciolo, C., Kidd J., Prodi F., M. Kastner, Davolio S., Lahav R., Bauer P., S. Mantovani, G. J. Tripoli, Layberry, R., Malguzzi, P., Pasqui, M., Villani, M.G., Dietrich S., Orlandi A., Vicente, G.A., Kastner M., Messeri G., Orlandi, A., Panegrossi, G., Costa, M.J., Capacci, D., Mugnai, A., PRODI, Franco, M. Pasqui, Tampieri, F., Kidd C., Schmetz, J., A. Orlandi, Tampieri F., Smith, E.A., M. G. Villani, D. E. Hinsman, Tapiador, F.J., Ortolani A., A. Tassa, A. Ortolani, Caracciolo C., G. Giuliani, Pinori, S., Panegrossi G., Antonimi, A., F. Tampieri, F. Torricella, CARACCIOLO, Clelia, Turk, F. J., M. Fantini, Tassa A., Alberini, P. P., R. Solomon, Kästner, Martina, Hinsman, D.E., E. A. Smith, Michele, S. di, Kniveton D., Celano M., R. Lahav, C. Kidd, F. Meneguzzo, Natali, S., S. Natali, E. Cattani, Adamo, C., Kidd, C., Messeri, G., Medaglia C. M., Porcu F., S. Di Michele, A. Khain, J. P. V. Poiares Baptista, G. A. Vicente, A. Battaglia, M. J. Costa, G. Panegrossi, D. Rosenfeld, Solomon, R., R. Layberry, Poli, V., Antonini A., I. Lensky, Melani, S., Costa M. J., Kidd, J., Khain, A., S. Melani, Malguzzi P., Tripoli, G. J., Di Michele S., Meneguzzo, F., Lensky, I., Buzzi A., Layberry R., Maurizi, A., C. M. Medaglia, P. P. Alberoni, Sanderson, V., V. Sanderson, Steinwagner, Jörg, A. Maurizi, V. Poli, Fantini M., A. Antonini, Battaglia, A., V. Levizzani, Melani S., F. J. Turk, Khain A., F. J. Tapiador, Pinori S., Marzano F. S., J. F. W. Purdom, Capacci D., D. Cimini, Mugnai A., Baptista J. P. V. P., Maurizi A., Rosenfeld D., Diavolio, S., Solomon R., Dietrich, S., Lensky I., D. Kniveton, A. Buzzi, Turk F. J., Giuliani G., S. Diavolio   +182 more
core  

Database-Assisted Spectrum Sharing in Satellite Communications: A Survey

IEEE Access, 2017
This survey paper discusses the feasibility of sharing the spectrum between satellite telecommunication networks and terrestrial and other satellite networks on the basis of a comprehensive study carried out as part of the European Space Agency's ...
Marko Hoyhtya, Aarne Mammela, Xianfu Chen, Ari Hulkkonen, Janne Janhunen, Jean-Christophe Dunat, Jonathan Gardey   +6 more
doaj   +1 more source

Objective detection of gravity waves in Himawari‑8 imagery in support of aviation forecasting

Meteorologische Zeitschrift, 2020
In this paper, the applicability of an objective gravity wave detection method based on Gabor filter plus grating cell operators to Himawari‑8 geostationary satellite imagery is investigated for the visible, water vapor and infrared window bands.
Na He, Alexander Jann, Yong Wang
doaj   +1 more source

Characterizing Tidal Currents and Guangdong Coastal Current Over the Northern South China Sea Shelf Using Himawari‐8 Geostationary Satellite Observations

Earth and Space Science, 2023
Obtaining high spatiotemporal resolution surface currents with wide coverage is of great importance for understanding marine physical and biogeochemical processes, as well as practical applications.
Zifeng Hu, Huadong Li, Dongxiao Wang
doaj   +1 more source

Low‐Complexity Hybrid Beamforming for LEO Satellites: Beam Update Rate Analysis and Advanced Adaptive Precoding

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT Low Earth Orbit (LEO) satellite constellations offer unprecedented opportunities for global broadband connectivity but pose significant beamforming challenges due to rapid platform motion and stringent onboard hardware constraints. Fully digital architectures, while optimal in theory, remain impractical for satellite payloads, motivating ...
Mohammad Momani, Thomas Delamotte, Andreas Knopp   +2 more
wiley   +1 more source

CLEAR Interference Cancellation in a Wideband Dual‐Channel Receiver for Independent Satellite Multi‐Connectivity Links

International Journal of Satellite Communications and Networking, EarlyView.
ABSTRACT In this paper, the correlation learning estimation and adaptive reduction (CLEAR) of interference, an adaptive, blind and transparent interference compensation method applied in a wideband dual‐channel receiver, is studied for a pair of independent satellite multi‐connectivity links, using the same carrier frequency and signal bandwidth in use
Svilen Dimitrov
wiley   +1 more source