Results 81 to 90 of about 42,857 (235)

Spatio‐Temporal Variation in Aerial Arthropod Abundance Revealed by Weather Radars

Global Change Biology, Volume 31, Issue 10, October 2025.
Alarming arthropod decline has been reported from around the world, but we lack conensus on the generality, severity, and potential causes of these declines. We use weather radars for large‐scale aerial arthropod monitoring across the United Kingdom and show that, on average, nocturnal arthropods showed a decline in abundance, while diurnal arthropods ...
Mansi Mungee, Maryna Lukach, Chris Shortall, James R. Bell, Elizabeth J. Duncan, Freya I. Addison, Lee E. Brown, William E. Kunin, Christopher Hassall, Ryan R. Neely III   +9 more
wiley   +1 more source

Iterative Bilateral Filtering of Polarimetric SAR Data

, 2013
In this paper, we introduce an iterative speckle filtering method for polarimetric SAR (PolSAR) images based on the bilateral filter. To locally adapt to the spatial structure of images, this filter relies on pixel similarities in both spatial and ...
D'Hondt, Olivier, Guillaso, Stéphane, Hellwich, Olaf   +2 more
core   +1 more source

Roll-invariant target decomposition in bistatic polarimetric SAR imagery

Canadian Journal of Remote Sensing, 2011
The polarimetric information has been widely used to interpret the Synthetic Aperture Radar (SAR) scene. Hence, many coherent and incoherent target decompositions have been recently introduced to extract polarimetric parameters with a physical meaning. Nevertheless, for most of them, the reciprocity assumption is assumed.
openaire   +1 more source

Application of Cloude's target decomposition theorem to polarimetric imaging radar data [PDF]

SPIE Proceedings, 1993
In this paper we applied Cloude's decomposition to imaging radar polarimetry. We show in detail how the decomposition results can guide the interpretation of scattering from vegetated areas. For multifrequency polarimetric radar measurements of a clear-cut area, the decomposition leads us to conclude that the vegetation is probably thin compared to ...
openaire   +1 more source

The “Analogs for VENus' GEologically Recent Surfaces” (AVENGERS) Initiative: Using Terrestrial Analogs to Study Recent Volcano‐Tectonic Activity on Venus and Inform the Characterization of Terrestrial Exoplanets

Journal of Geophysical Research: Planets, Volume 130, Issue 9, September 2025.
Abstract Several missions to Venus have recently been selected for launch, opening a new era for the exploration of the planet. A key question these missions seek to address is whether Venus is geologically active today. Detecting active volcanism on Venus would contribute to a better understanding of volcanic and atmospheric processes on Earth.
P. D’Incecco, J. Filiberto, J. B. Garvin, G. N. Arney, S. A. Getty, E. Kohler, L. M. Zelenyi, L. V. Zasova, O. I. Korablev, M. A. Ivanov, J. W. Head, D. A. Gorinov, S. Bhattacharya, S. S. Bhiravarasu, D. Putrevu, I. López, R. Ghail, P. Mason, J. Brossier, C. Monaco, S. Branca, R. A. Corsaro, D. Trang, J. R. Crandall, N. Mari, M. Blackett, G. Komatsu, A. Kosenkova, I. Flynn, S. Aveni, N. Lang, B. J. Thomson, I. Pagano, S. Cassisi, G. Eggers, R. E. Ernst, H. El Bilali, T. Kremic, J. Lustig‐Yaeger, N. Izenberg, L. Bruzzone, M. El Yazidi, E. Ferroni, D. Coero Borga, C. Badia, S. Parisini, G. Fiasconaro, S. Cussini, M. Dolci, E. Brocato, G. Gallardo i Peres, N. Davidova, S. Kane, C. Ostberg, V. Ortega‐Ramos, G. Di Achille   +55 more
wiley   +1 more source

Spin‐Orbit Photonics with Potato Starch Lenses

Advanced Optical Materials, Volume 13, Issue 21, July 25, 2025.
Native potato starch spherulites are introduced as volumetric optical elements that modulate both dynamic and geometric phases of light. These spherulites focus light and generate optical vortices via spin‐orbit interaction, functioning as polarization‐sensitive microlenses. Their unique radial anisotropy enables applications in vortex beam generation,
Petr Bouchal, Petr Viewegh, Petr Liška, Radim Chmelík, Zdeněk Bouchal   +4 more
wiley   +1 more source

RadioAstron space VLBI imaging of polarized radio emission in the high-redshift quasar 0642+449 at 1.6 GHz

, 2015
Polarization of radio emission in extragalactic jets at a sub-milliarcsecond angular resolution holds important clues for understanding the structure of the magnetic field in the inner regions of the jets and in close vicinity of the supermassive black ...
Anderson, J., Bach, U., Bruni, G., Gómez, J. L., Kovalev, Y. Y., Kraus, A., Lisakov, M. M., Lobanov, A. P., Sokolovsky, K. V., Voytsik, P. A., Zensus, J. A.   +10 more
core   +1 more source

Kriging‐variance‐based multi‐member ensembles of radar–rain‐gauge precipitation estimates: Application in Switzerland

Quarterly Journal of the Royal Meteorological Society, Volume 151, Issue 770, July 2025 Part A.
We explore the variance of the radar–rain‐gauge combination kriging‐based system “CombiPrecip”, showing that it represents satisfactorily the radar–rain‐gauge precipitation uncertainty around the kriging expected value. We then present a method to generate ensembles out of it, which we find to be very similar in texture with the expected‐value image ...
I. V. Sideris, A. Ntoumos, A. Berne, M. Gabella, M. Boscacci, L. Clementi, U. Germann   +6 more
wiley   +1 more source

New glycoside hydrolase families of β‐1,2‐glucanases

Protein Science, Volume 34, Issue 6, June 2025.
Abstract β‐1,2‐Glucans are natural glucose polymers produced by bacteria and play important physiological roles, including as symbiotic or pathogenic factors and in osmoregulation. Glycoside hydrolase (GH) families related to β‐1,2‐glucan metabolism (GH144, GH162, and GH189) have recently been created by identification of two β‐1,2‐glucanases and a β‐1,
Masahiro Nakajima, Nobukiyo Tanaka, Sei Motouchi, Kaito Kobayashi, Hisaka Shimizu, Koichi Abe, Naoya Hosoyamada, Naoya Abara, Naoko Morimoto, Narumi Hiramoto, Ryosuke Nakata, Akira Takashima, Marie Hosoki, Soichiro Suzuki, Kako Shikano, Takahiro Fujimaru, Shiho Imagawa, Yukiya Kawadai, Ziyu Wang, Yoshinao Kitano, Takanori Nihira, Hiroyuki Nakai, Hayao Taguchi   +22 more
wiley   +1 more source

Self-adaptive loop for external disturbance reduction in differential measurement set-up

, 2018
We present a method developed to actively compensate common-mode magnetic disturbances on a multi-sensor device devoted to differential measurements.
Bevilacqua, Giuseppe, Biancalana, Valerio, Dancheva, Yordanka, Vigilante, Antonio   +3 more
core   +1 more source