Zobrazeno 1 - 10 of 17 pro vyhledávání: '"Randall J. Alliss"'
1
An Update on the CCSDS Optical Communications Working Group Interoperability Standards
Autor: Lena Braatz, Bernard L. Edwards, Dirk Giggenbach, Jon Hamkins, Robert Daddato, Bryan S. Robinson, Randall J. Alliss, Klaus-Juergen Schulz
Publikováno v: 2019 IEEE International Conference on Space Optical Systems and Applications (ICSOS).
International space agencies around the world are working together in the Interagency Operation Advisory Group (IOAG) and the Consultative Committee for Space Data Systems (CCSDS) to develop interoperability standards for optical communications. The
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::4cd5328d9f349c1f83cea9a6855279cf
https://doi.org/10.1109/icsos45490.2019.8978979
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4
Temporal solar radiation change at high elevations in Hawai‘i
Autor: Randall J. Alliss, Thomas W. Giambelluca, Ryan J. Longman, M. Barnes
Publikováno v: Journal of Geophysical Research: Atmospheres. 119:6022-6033
Trends in downwelling global solar irradiance were evaluated at high-elevation sites on the island of Maui, Hawai‘i. Departures from monthly means were assessed for the 6 month Hawaiian wet and dry seasons over the period 1988 to 2012. Linear regre
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::922310d83071c67b93e17affdb85ceca
https://doi.org/10.1002/2013jd021322
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5
Characterization of atmospherics in Hawaii for free space optical communications
Autor: Billy Felton, Randall J. Alliss
Publikováno v: 2015 IEEE International Conference on Space Optical Systems and Applications (ICSOS).
Radio Frequency (RF) signals have been relied on exclusively and successfully to communicate with spacecraft since satellite communications began nearly 60 years ago. However, missions now demand higher data rates to meet their data collection requir
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e71bfa3689247ecbe3a3fa08f1d3e1ed
https://doi.org/10.1109/icsos.2015.7425072
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6
A Comparison of Saturation Pressure Differences and GOES VAS Estimates to Surface Observations of Cloudiness
Autor: Randall J. Alliss, Sethu Raman
Publikováno v: Journal of Applied Meteorology. 35:521-531
Saturation pressure differences are calculated from upper-air soundings and compared to manual surface observations of cloudiness. The mean saturation pressure difference between 1000 and 700, 700 and 400, and 400 and 300 mb is calculated and compare
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f3eb160f0368d9b55e6033a06f30a097
https://doi.org/10.1175/1520-0450(1996)035<0521:acospd>2.0.co
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7
Cloudiness and Its Relationship to Saturation Pressure Differences during a Developing East Coast Winter Storm
Autor: Sethu Raman, Randall J. Alliss
Publikováno v: Journal of Applied Meteorology. 34:2367-2387
Cloudiness derived from surface observations and the Geostationary Operational Environmental Satellite VISSR (Visible-Infrared Spin Scan Radiometer) Atmospheric Sounder (VAS) are compared with thermodynamic properties derived from upper-air soundings
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::c364eddbdb58868168cf3f19b56509ca
https://doi.org/10.1175/1520-0450(1995)034<2367:cairts>2.0.co
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8
Diurnal Variations in Cloud Frequency over the Gulf Stream Locale
Autor: Sethu Raman, Randall J. Alliss
Publikováno v: Journal of Applied Meteorology. 34:1578-1594
This paper documents evidence of a diurnal variability in cloudiness over the Gulf Stream locale. The Gulf Stream locale (GSL) is defined as the region covering 31°–38°N, 82°–71°W. The Gulf Stream, which occupies a portion of the GSL, is a warm
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49ac2e25cec33ab6f4a8b87684a3f1be
https://doi.org/10.1175/1520-0450(1995)034<1578:dvicfo>2.0.co
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9
Quantitative Estimates of Cloudiness over the Gulf Stream Locale Using GOES VAS Observations
Autor: Sethu Raman, Randall J. Alliss
Publikováno v: Journal of Applied Meteorology. 34:500-510
Fields of cloudiness derived from the Geostationary Operational Environmental Satellite VISSR (Visible–Infrared Spin Scan Radiometer) Atmospheric Sounder are analyzed over the Gulf Stream locale (GSL) to investigate seasonal and geographical variati
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::973296ec3251d21a677634a1c68fec95
https://doi.org/10.1175/1520-0450-34.2.500
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10
The mitigation of cloud impacts on free-space optical communications
Autor: Billy Felton, Randall J. Alliss
Publikováno v: SPIE Proceedings.
Clouds are key driver in the performance of free space optical communication (FSOC) systems. Clouds are composed of liquid water and/or ice crystals and depending on the physical thickness can produce atmospheric fades easily exceeding 10 dB. In thes
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d652ee088f32c14dd515f991186ae2e2
https://doi.org/10.1117/12.918403
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