Results 61 to 70 of about 630,501 (231)
A new clutter suppression technique that uses both Doppler and polarimetric information is presented. Polarimetric properties of the target and clutter are calculated per Doppler frequency cell and based on this information clutter suppression is ...
Dmitri Moisseev +3 more
doaj +1 more source
Modification of 11‐cm Doppler radar, to permit measurement of the complete polari‐metric matrix of signals backscattered from meteorological media, was recently completed by the Ground Based Remote Sensing Branch of the Geophysics Laboratory, U.S. Air Force Base, Hanscom, Mass. It is believed that this radar is the only meteorological research radar in
openaire +1 more source
ABSTRACT A series of novel chiral urea and thiourea compounds were designed as multitarget‐directed ligands for Alzheimer's disease and evaluated against hAChE, hBChE, and hMAO‐B, with exploratory assessment of HSD10. These chiral compounds were synthesized and fully characterized, and their enantiopurity was confirmed via HPLC.
Sule Erol Gunal +10 more
wiley +1 more source
The Ceiling Height of Wildland Fire Plumes in Quasi‐Steady Stratified and Sheared Boundary Layers
Abstract Radar observations from a prescribed fire experiment reveal a large‐scale, billow‐like vorticity structure associated with the plume head near the onset of plume bending. This bending limits the vertical extent of the plume and defines the characteristic plume ceiling height.
Jie Sun +4 more
wiley +1 more source
Bird Migration Echoes Observed by Polarimetric Radar [PDF]
A C-band polarimetric radar on Okinawa Island successfully observed large-scale bird migrations over the western Pacific Ocean. The birds generated interesting polarimetric signatures.
FURUZAWA, Fumie A. +3 more
core
Abstract Snow on Antarctic sea ice modulates albedo, thermodynamic growth, and snow–ice formation, yet remains a leading uncertainty in altimetry‐derived sea‐ice thickness. Here we use the post‐2022 CRYO2ICE configuration to derive along‐track winter snow thickness from ICESat‐2 laser and CryoSat‐2 Ku‐band radar freeboards over the Weddell and Ross ...
Xinlong Liu +4 more
wiley +1 more source
Forest anisotropy assessment by means of spatial variations analysis of PolSAR backscattering [PDF]
The possibility to synthesize polarization response from earth covers at any desired combination of transmit and receive antenna polarizations is the significant advantage of polarimetric radar.
A. V. Dmitriev +2 more
doaj +1 more source
What SAR Labels Hide About a Changing Arctic
Abstract Synthetic aperture radar (SAR) has been the backbone of Arctic sea ice monitoring since the 1990s, yet nearly every operational product that assigns an ice class or geophysical state (melt onset dates, freeze‐up timing, ice‐type classifications) is derived by compressing continuous radar backscatter into discrete categorical labels.
M. Mahmud
wiley +1 more source
Investigations on the Polarimetric Behavior of a Target Near the Soil [PDF]
The polarimetric behavior of the diffracted field from an object located close to the ground is investigated for a varying incidence angle. Here, the field is described by the geometrical theory of diffraction in accordance to its asymptotic formulas. As
Molinet, Frédéric +3 more
core +1 more source
Dual-polarization radar rainfall estimation in Korea according to raindrop shapes obtained by using a 2-D video disdrometer [PDF]
Polarimetric measurements are sensitive to the sizes, concentrations, orientations, and shapes of raindrops. Thus, rainfall rates calculated from polarimetric radar are influenced by the raindrop shapes and canting.
H.-L. Kim +4 more
doaj +1 more source

