Results 71 to 80 of about 5,314 (235)

Identifying Landslides in Atla Regio on Venus

Journal of Geophysical Research: Planets, Volume 130, Issue 4, April 2025.
Abstract We performed a systematic search for landslides in the Alta Regio region of Venus, located from (16°S, 179°W) to (21°N, 147°W). Using data primarily from Magellan Cycle 1 radar imagery, we identified 29 landslides in this region. There were 19 previously identified across the entire surface (Malin, 1992, https://doi.org/10.1029/92je01343 ...
E. L. Jesina, L. M. Carter, I. Ganesh
wiley   +1 more source

Development of a ground-based polarimetric broadband SAR system for noninvasive ground-truth validation in vegetation monitoring [PDF]

, 2004
Copyright © 2004 IEEEWe have developed a ground-based polarimetric broadband synthetic aperture radar (SAR) system for noninvasive ground-truth validation in polarimetric SAR remote sensing of terrestrial vegetation cover.
Boerner, Wolfgang-Martin, Sato, Motoyuki, Zhou, Zheng-Shu   +2 more
core   +2 more sources

Polarization Scattering Regions: A Useful Tool for Polarization Characteristic Description

Remote Sensing
Polarimetric radar systems play a crucial role in enhancing microwave remote sensing and target identification by providing a refined understanding of electromagnetic scattering mechanisms.
Jiankai Huang, Jiapeng Yin, Zhiming Xu, Yongzhen Li   +3 more
doaj   +1 more source

Spatial and Temporal Scales of Riming Events in Nonconvective Clouds Derived From Long‐Term Cloud Radar Observations in Germany

Journal of Geophysical Research: Atmospheres, Volume 130, Issue 4, 28 February 2025.
Abstract Despite the relevancy of riming for precipitation formation, our observational knowledge of spatiotemporal scales of riming in clouds is poor. We use long‐term cloud radar observations to statistically investigate the horizontal and vertical dimensions as well as the typical duration of riming events. We extend a recent retrieval for rime mass
Paul Ockenfuß, Mathias Gergely, Michael Frech, Stefan Kneifel   +3 more
wiley   +1 more source

An Unbalanced Sinuous Antenna for Near-Surface Polarimetric Ground-Penetrating Radar

IEEE Open Journal of Antennas and Propagation, 2020
Sinuous antennas are capable of producing ultra-wideband radiation with polarization diversity. This capability makes the sinuous antenna an attractive candidate for UWB polarimetric radar applications. Additionally, the ability of the sinuous antenna to
Dylan A. Crocker, Waymond R. Scott
doaj   +1 more source

Digital beam forming methods for variable polarimetric monopulse radar

IET Radar, Sonar & Navigation, 2021
In variable polarimetric monopulse radars, due to the number and types of data channels, the polarisation and angle information of the target in the receiving signals are non‐linearly coupled, which results in incorrect polarisation measurement and ...
Yi Zhang, Zhangfeng Li, Pei Zheng, Houjun Sun   +3 more
doaj   +1 more source

Physical Investigation of the Potentially Hazardous Asteroid (144898) 2004 VD17

, 2007
In this paper we present the observational campaign carried out at ESO NTT and VLT in April and May 2006 to investigate the nature and the structure of the Near Earth Object (144898) 2004 VD17.
A. Boattini, A. Milani, A. Rossi, Binzel, Cellino, Chapman, Chesley, D. Perna, Dotto, Dotto, E. Dotto, F. De Luise, Fornasier, Fornasier, G.B. Valsecchi, Harris, Holsapple, I.N. Belskaya, Landolt, Lowry, M. Fulchignoni, M. Lazzarin, Milani, P. Paolicchi, Persson, Pravec, Richardson, Romon, Rosenbush, S. Fornasier, Scheeres, Zellner   +31 more
core   +1 more source

3-D broadband ground-based polarimetric SAR data processing for the monitoring of vegetation growth variations [PDF]

, 2004
Subtitle of Symposium: Science for society: exploring and managing a changing planetSAR is usually used for airborne or space borne remote sensing. It can also advantageously be exploited in a ground-based radar imaging system named Ground-based SAR (GB ...
Boerner, Wolfgang-Martin, Hamasaki, Tadashi, Sato, Motoyuki, Zhou, Zheng-Shu   +3 more
core   +1 more source

Ocean Surface Wave Slopes and Wind‐Wave Alignment Observed in Hurricane Idalia

Journal of Geophysical Research: Oceans, Volume 130, Issue 2, February 2025.
Abstract Drifting buoy observations in Hurricane Idalia (2023) are used to investigate the dependence of ocean surface wave mean square slope on wind, wave, and storm characteristics. Mean square slope has a primary dependence on wind speed that is linear at low‐to‐moderate wind speeds and approaches saturation at high wind speeds (> ${ >} $20 m s−1 ${\
Jacob R. Davis, Jim Thomson, Isabel A. Houghton, Chris W. Fairall, Brian J. Butterworth, Elizabeth J. Thompson, Gijs de Boer, James D. Doyle, Jonathan R. Moskaitis   +8 more
wiley   +1 more source

An icon-based synoptic visualization of fully polarimetric radar data [PDF]

, 2012
The visualization of fully polarimetric radar data is hindered by traditional remote sensing methodologies for displaying data due to the large number of parameters per pixel in such data, and the non-scalar nature of variables such as phase difference ...
Agrawal, Bertin, Christensen, Cloude, Cloude, Cloude, Dean Turner, Dong, Fortuny, Gu, Hajnsek, Iain H. Woodhouse, Le Toan, Lee, Skriver, Van Zyl, Woodhouse, Woodhouse, Zebker   +18 more
core   +2 more sources