Results 1 to 10 of about 3,633,425 (318)

Observations of the thermodynamic and kinematic state of the atmospheric boundary layer over the San Luis Valley, CO, using the CopterSonde 2 remotely piloted aircraft system in support of the LAPSE-RATE field campaign [PDF]

Earth System Science Data, 2021
In July 2018, the University of Oklahoma deployed three CopterSonde remotely piloted aircraft systems (RPASs) to take measurements of the evolving thermodynamic and kinematic state of the atmospheric boundary layer (ABL) over complex terrain in the San ...
E. A. Pillar-Little, E. A. Pillar-Little, B. R. Greene, B. R. Greene, B. R. Greene, F. M. Lappin, F. M. Lappin, T. M. Bell, T. M. Bell, T. M. Bell, T. M. Bell, A. R. Segales, A. R. Segales, A. R. Segales, G. B. H. de Azevedo, G. B. H. de Azevedo, W. Doyle, S. T. Kanneganti, S. T. Kanneganti, D. D. Tripp, D. D. Tripp, P. B. Chilson, P. B. Chilson, P. B. Chilson   +23 more
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Remote-sensing and radiosonde datasets collected in the San Luis Valley during the LAPSE-RATE campaign [PDF]

Earth System Science Data, 2021
In July 2018, the International Society for Atmospheric Research using Remotely piloted Aircraft (ISARRA) hosted a flight week to showcase the role remotely piloted aircraft systems (RPASs) can have in filling the atmospheric data gap.
T. M. Bell, T. M. Bell, P. M. Klein, P. M. Klein, J. K. Lundquist, J. K. Lundquist, S. Waugh   +6 more
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The CopterSonde: an insight into the development of a smart unmanned aircraft system for atmospheric boundary layer research [PDF]

Atmospheric Measurement Techniques, 2020
The CopterSonde is an unmanned aircraft system (UAS) developed in house by a team of engineers and meteorologists at the University of Oklahoma. The CopterSonde is an ambitious attempt by the Center for Autonomous Sensing and Sampling to address the ...
A. R. Segales, A. R. Segales, A. R. Segales, B. R. Greene, B. R. Greene, B. R. Greene, T. M. Bell, T. M. Bell, W. Doyle, J. J. Martin, E. A. Pillar-Little, E. A. Pillar-Little, P. B. Chilson, P. B. Chilson, P. B. Chilson   +14 more
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Turbulence dissipation rate estimated from lidar observations during the LAPSE-RATE field campaign [PDF]

Earth System Science Data, 2021
The International Society for Atmospheric Research using Remotely-piloted Aircraft (ISARRA) hosted a flight week in July 2018 to demonstrate unmanned aircraft systems' (UASs) capabilities in sampling the atmospheric boundary layer.
M. Sanchez Gomez, J. K. Lundquist, J. K. Lundquist, P. M. Klein, P. M. Klein, T. M. Bell, T. M. Bell   +6 more
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Low-complexity methods to mitigate the impact of environmental variables on low-cost UAS-based atmospheric carbon dioxide measurements [PDF]

Atmospheric Measurement Techniques, 2022
This article assesses the individual and joint impact of pressure, temperature, and relative humidity on the accuracy of atmospheric CO2 measurements collected by unmanned aerial systems (UASs) using low-cost commercial non-dispersive infrared (NDIR ...
G. Britto Hupsel de Azevedo, G. Britto Hupsel de Azevedo, G. Britto Hupsel de Azevedo, B. Doyle, C. A. Fiebrich, D. Schvartzman, D. Schvartzman   +6 more
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Confronting the boundary layer data gap: evaluating new and existing methodologies of probing the lower atmosphere [PDF]

Atmospheric Measurement Techniques, 2020
It is widely accepted that the atmospheric boundary layer is drastically under-sampled in the vertical dimension. In recent years, the commercial availability of ground-based remote sensors combined with the widespread use of small, weather-sensing ...
T. M. Bell, T. M. Bell, B. R. Greene, B. R. Greene, B. R. Greene, P. M. Klein, P. M. Klein, M. Carney, P. B. Chilson, P. B. Chilson, P. B. Chilson   +10 more
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USING SAMPLING TECHNIQUE LIVESTOCK STATISTICS IN GOVERNORATES [PDF]

Journal of Agricultural Economics and Social Sciences, 2005
Although the economic impotence of animal product sector , represents about 36% of Agricultural Domestic Product in Egypt, its data experienced with shortage and inaccuracy. The Data estimated each 10 years through the Agricultural Census ,also each 3
B. Bayoumi.
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Considerations for temperature sensor placement on rotary-wing unmanned aircraft systems [PDF]

Atmospheric Measurement Techniques, 2018
Integrating sensors with a rotary-wing unmanned aircraft system (rwUAS) can introduce several sources of biases and uncertainties if not properly accounted for.
B. R. Greene, B. R. Greene, B. R. Greene, A. R. Segales, A. R. Segales, A. R. Segales, S. Waugh, S. Duthoit, S. Duthoit, S. Duthoit, P. B. Chilson, P. B. Chilson, P. B. Chilson   +12 more
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USING SAMPLING TECHNIQUE FOR ESTIMATING CATILE NEEDS FORM BARSEEM [PDF]

Journal of Agricultural Economics and Social Sciences, 2005
The study alms at using sampling tecnnique for estimating needs of cattle in traditional farm from Barseem In each upper Egypt governorate. measuring degree of accuracy and comparing these estimates by published data.
A. EI-Khatib, B. Bayoumi,
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Implementing ICT in classroom practice: what else matters besides the ICT infrastructure?

Large-scale Assessments in Education, 2023
Background The large-scale International Computer and Information Literacy Study (2018) has an interesting finding concerning Luxembourg teachers. Luxembourg has one of the highest reported level of technology-related resources for teaching and learning,
Catalina Lomos, J. W. (Hans) Luyten, Sabine Tieck   +2 more
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