Results 101 to 110 of about 71,530 (301)

Turbulent Exchange of CO2 ${\text{CO}}_{2}$ in the Lower Tropical Troposphere Across Clear‐to‐Cloudy Conditions

open access: yesJournal of Geophysical Research: Atmospheres, Volume 130, Issue 19, 16 October 2025.
Abstract This study investigates the roles of clear air entrainment and shallow cloud ventilation, alongside rainforest CO2 ${\text{CO}}_{2}$‐assimilation, in the turbulent exchange of CO2 ${\text{CO}}_{2}$ within the lower tropical troposphere under clear‐to‐cloudy conditions.
V. S. de Feiter   +8 more
wiley   +1 more source

Design, Simulation, and Fabrication of High‐Performance Metamaterial Absorber for EMI Mitigation and THz NDT/Imaging Applications: A Shape‐Preserved GHz‐to‐THz Transition Approach

open access: yesAdvanced Theory and Simulations, Volume 8, Issue 10, October 2025.
A novel metamaterial absorber is designed, simulated, and validated for both 5G mmWave and THz applications, achieving >95.8% and 90% absorption, respectively. Its polarization‐insensitive, scalable design enables applications in THz NDT, imaging, and EMI shielding.
Ahmet Teber
wiley   +1 more source

El Campo solar radar system Second semiannual report, Jul. 1 - Dec. 31, 1965 [PDF]

open access: yes
Doppler characteristics of radar echoes reflected by solar ...
Harrington, J. V.
core   +1 more source

Experimental Research on Micro-Doppler Effect of Multi-rotor Drone with Digital Television Based Passive Radar

open access: yesLeida xuebao, 2018
In this paper, experimental results of micro-Doppler effect on a multi-rotor drone with digital television based passive radar are discussed. First, the bistatic passive radar micro-motion model of the drone is established.
Liu Yuqi   +5 more
doaj   +1 more source

Measurement of vertical velocity using clear-air Doppler radars [PDF]

open access: yes
A new clear air Doppler radar was constructed, called the Flatland radar, in very flat terrain near Champaign-Urbana, Illinois. The radar wavelength is 6.02 m.
Clark, W. L.   +5 more
core   +1 more source

Methods for verifying the accuracy of wind profiles [PDF]

open access: yes, 1986
Comparisons of radar-measured winds have been made with several types of measurements not only to verify radar data but also to seek a satisfactory comparison method.
Strauch, R. C.
core   +1 more source

Multi‐Year Glaciological and Meteorological Observations on Debris‐Covered Kennicott Glacier, Alaska, 2016–2023

open access: yesGeoscience Data Journal, Volume 12, Issue 4, October 2025.
A seven year record of multi‐variable field observations (meteorological, glaciological mass balance) is presented for Kennicott Glacier, a large debris‐covered glacier in the Wrangell Mountains Alaska. This dataset will be useful for calibrating remote sensed data, constraining energy and mass balance models, and pursuing targeted glaciological and ...
Eric Ivan Petersen   +8 more
wiley   +1 more source

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