Results 21 to 30 of about 1,770 (180)
Journal of Field Robotics, EarlyView.ABSTRACT As a crucial puzzle piece of deep space exploration, exploring small bodies can provide significant scientific insights and valuable mineral resources. Unlike missions to the Moon and Mars, small‐body missions pose distinct technical challenges, including communication delays, weak gravity, and uncertain environments. This paper reviews a full
Xin Zhang +3 more
wiley +1 more source
Clahsen 2018 M.Sc. thesis - Error analysis of wind estimates in specular meteor radar systems
, 2021 Master thesis - Error analysis of wind estimates in specular meteor radar ...
Clahsen, Matthias
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Global Policy, EarlyView.ABSTRACT The European Union's proposed Space Law aims to establish a unified approach for sustainable space activities across the EU. While the EU's satellite constellations contribute to sustainability efforts, they can also have negative environmental impacts.
Elena Cirkovic, Vitali Braun
wiley +1 more source
Cosmic radio noise observations using a mid-latitude meteor radar
, 2011 For the investigation of meteoroid properties the measurement of the electron line density in meteor ambipolar plasma trails is an important parameter, which becomes accessible by a radar calibration.
Stober, G. +5 more
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Tirupati meteor radar - horizontal wind
, 2021 This dataset contains the hourly zonal and meridional wind data measured by Tirupati meteor radar for 2019.
Lee, W (via Mendeley Data)
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Groundwater, EarlyView.Marine electrical resistivity tomography (ERT) is applied to characterize point‐source submarine groundwater discharge (PSGD) along NW Yucatán. ERT observations and forward modeling constrain conduit detectability under varying hydrogeological conditions.
Mariana Gómez‐Nicolás +6 more
wiley +1 more source
SKiYMET Meteor Radar Horizontal Wind
, 2020 This is horizontal wind measured by a SKiYMET Meteor Radar near Andes Lidar Observatory in Cerro Pachón, Chile from Sep 2009 to Aug 2014. The radar was previously installed at Maui, Hawaii and is described in the paper Franke, S. J., X. Chu, A. Z. Liu,
Franke, Steven, Liu, Alan
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A comparison of optical and radar measurements of mesospheric winds and tides [PDF]
, 2000 Optical measurements of mesospheric winds by Fabry‐Perot spectrometers, FPSs, at Mawson, 67.6°S 62.9°E, and Davis, 68.6°S 78.0°E, Antarctica are compared with similar measurements obtained using a spaced‐antenna MF radar at Davis.
Vincent, R. +3 more
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Influence of Meteor Count on Wind Field Retrieved by All-Sky Meteor Radar
, 2023 The all-sky meteor radar is an important means to detect 70–110 km wind fields. Previous studies have shown that the wind field retrieved by all-sky meteor radars is closely related to the meteor count detected by the radar.
Yu Ma +5 more
core +1 more source
On the Determination of Velocities of Radar Meteors [PDF]
International Astronomical Union Colloquium, 1996 AbstractThe results of testing the classical method of velocity determination based on the positions of the extrema of Fresnel diffraction patterns (FDP) in radio echo amplitude, is presented. This technique is compared to the method of nonlinear least squares fitting (NLSF) of the theoretical patterns to the observed those.
openaire +1 more source