Results 41 to 50 of about 947,860 (252)

On the Use of Rotary-Wing Aircraft to Sample Near-Surface Thermodynamic Fields: Results from Recent Field Campaigns

Sensors, 2018
Rotary-wing small unmanned aircraft systems (sUAS) are increasingly being used for sampling thermodynamic and chemical properties of the Earth’s atmospheric boundary layer (ABL) because of their ability to measure at high spatial and temporal ...
Temple R. Lee, Michael Buban, Edward Dumas, C. Bruce Baker   +3 more
doaj   +1 more source

Testing and development of transfer functions for weighing precipitation gauges in WMO-SPICE [PDF]

Hydrology and Earth System Sciences, 2018
Weighing precipitation gauges are used widely for the measurement of all forms of precipitation, and are typically more accurate than tipping-bucket precipitation gauges.
J. Kochendorfer, R. Nitu, R. Nitu, M. Wolff, E. Mekis, R. Rasmussen, B. Baker, M. E. Earle, A. Reverdin, K. Wong, C. D. Smith, D. Yang, Y.-A. Roulet, T. Meyers, S. Buisan, K. Isaksen, R. Brækkan, S. Landolt, A. Jachcik   +18 more
doaj   +1 more source

Site‐Specific Soil Properties of the US Climate Reference Network Soil Moisture

Vadose Zone Journal, 2016
Core Ideas This study quantifies the variability of soils at US Climate Reference Network sites. Soil properties were determined from the analysis of soil core samples.
Timothy B. Wilson, C. Bruce Baker, Tilden P. Meyers, John Kochendorfer, Mark Hall, Jesse E. Bell, Howard J. Diamond, Michael A. Palecki   +7 more
doaj   +1 more source

Correction: Lee, T. R., et al. On the Use of Rotary-Wing Aircraft to Sample Near-Surface Thermodynamic Fields: Results from Recent Field Campaigns. Sensors 2019, 19(1), 10

Sensors, 2019
The authors wish to make the following correction to this paper [...]
Temple R. Lee, Michael Buban, Edward Dumas, C. Bruce Baker   +3 more
doaj   +1 more source

Propagation characteristics of the vortex beam array through anisotropic non-Kolmogorov maritime atmospheric turbulence

Frontiers in Physics, 2023
This study employs the power spectrum inversion method to generate the phase screens of atmospheric turbulence over the sea, the theoretical model of the vortex beam array emitted by a focusing system through anisotropic non-Kolmogorov maritime ...
Hong Yu, Hong Yu, Bowen Yang, Hanyin Hu, Zheqiang Zhong, Bin Zhang   +5 more
doaj   +1 more source

Restoration of Atmospheric Turbulence-degraded Images Based on Contrastive Learning [PDF]

Jisuanji kexue
Image degradation caused by atmospheric turbulence seriously affects the performance of downstream computer vision tasks such as object detection and image recognition.Existing deep learning-based image restoration models for atmospheric turbulence ...
MIAO Zhuang, CUI Haoran, ZHANG Qiyang, WANG Jiabao, LI Yang
doaj   +1 more source

A statistical approach to surface renewal: The virtual chamber concept

Agrosystems, Geosciences & Environment, 2021
In the stable conditions prevailing at night, concentrations of emitted gases (e.g., radon [Rn], carbon dioxide [CO2], methane [CH4], ammonia [NH3], and nitrous oxide [N2O]) build up at the surface, with intermittent interruptions due to the passage of ...
Bruce B. Hicks, Nebila Lichiheb, Deb. L. O'Dell, Joel N. Oetting, Neal S. Eash, Mark Heuer, LaToya Myles   +6 more
doaj   +1 more source

Atmospheric Turbulence Study with Deep Machine Learning of Intensity Scintillation Patterns

Applied Sciences, 2020
A new paradigm for machine learning-inspired atmospheric turbulence sensing is developed and applied to predict the atmospheric turbulence refractive index structure parameter using deep neural network (DNN)-based processing of short-exposure laser beam ...
A. Vorontsov, M. Vorontsov, G. Filimonov, E. Polnau   +3 more
semanticscholar   +1 more source

Quantitative Analysis of the Effect of Atmospheric Turbulence on a Bessel–Gaussian Beam

Photonics, 2023
Suppressing the impact of atmospheric turbulence on laser beam propagation is a bottleneck problem in the application of free space optical communications, with the primary difficulty being the lack of a quantitative description of the effect of ...
Wei Wen
doaj   +1 more source

The fractal turbulent–non-turbulent interface in the atmosphere

Wind Energy Science, 2023
Abstract. With their constant increase in size, wind turbines are reaching unprecedented heights. Therefore, at these heights, they are influenced by wind conditions that have not yet been studied in detail. With increasing height, a transition to laminar conditions becomes more and more likely.
L. Neuhaus, L. Neuhaus, M. Wächter, M. Wächter, J. Peinke, J. Peinke   +5 more
openaire   +3 more sources