Results 61 to 70 of about 641,092 (210)

Aerosol‐Cloud Interactions: Overcoming a Barrier to Projecting Near‐Term Climate Evolution and Risk

AGU Advances, Volume 7, Issue 1, February 2026.
Abstract Aerosol‐cloud interactions (ACI) are a major source of uncertainty in climate science, critically affecting our ability to project near‐term climate evolution and assess societal risks. These interactions influence effective radiative forcing, cloud dynamics, and precipitation patterns, yet remain insufficiently constrained due to limitations ...
Ulas Im, Bjørn H. Samset, Athanasios Nenes, Jennie L. Thomas, Harri Kokkola, Oleg Dubovik, Vassilis Amiridis, Antti Arola, Nicolas Bellouin, Angela Benedetti, Merete Bilde, Sara Blichner, Stefano Decesari, Annica M. L. Ekman, Carlos Pérez García‐Pando, Silke Gross, Edward Gryspeerdt, Otto Hasekamp, Ralph A. Kahn, Anton Laakso, Ulrike Lohmann, Louis Marelle, Andreas H. Massling, Cathrine Lund Myhre, Mira Pöhlker, Johannes Quaas, Tomi Raatikainen, Ilona Riipinen, Julia Schmale, Patric Seifert, Henrik Skov, Chris Smith, Moa K. Sporre, Philip Stier, Trude Storelvmo, Kostas Tsigaridis, Bastiaan van Diedenhoven, Annele Virtanen, Ulla Wandinger, Laura J. Wilcox, Paul Zieger   +40 more
wiley   +1 more source

Exploiting radar polarimetry for nowcasting thunderstorm hazards using deep learning [PDF]

Natural Hazards and Earth System Sciences
This work presents the importance of polarimetric variables as an additional data source for nowcasting thunderstorm hazards using an existing neural network architecture with recurrent-convolutional layers.
N. Rombeek, J. Leinonen, U. Hamann
doaj   +1 more source

Perspectives on Systematic Cloud Microphysics Scheme Development With Machine Learning

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 1, January 2026.
Abstract Cloud microphysics—the collection of processes that govern the small‐scale formation, evolution, and interactions of liquid droplets and ice crystals in clouds and precipitation—remains a major source of uncertainty in weather and climate models.
Kara D. Lamb, Clare E. Singer, Kaitlyn Loftus, Hugh Morrison, Margaret Powell, Joseph Ko, Jatan Buch, Arthur Z. Hu, Marcus van Lier Walqui, Pierre Gentine   +9 more
wiley   +1 more source

Weather Radar Polarimetry–Trends Toward Operational Applications

, 1996
This is a version of a speech presented at the 27th Conference on Radar Meteorology. Relative advantages of polarimetry are contrasted with the advantages accrued by the introduction of radar into meteorology and by the addition of Doppler measurements ...
Dušan S. Zrnić
core   +1 more source

Ocean Surface Wind Speed Retrieval Using Simulated RADARSAT Constellation Mission Compact Polarimetry SAR Data

Remote Sensing, 2019
We investigated the use of C-band RADARSAT Constellation Mission (RCM) synthetic aperture radar (SAR) for retrieval of ocean surface wind speeds by using four new channels (right circular transmit, vertical receive (RV); right circular transmit ...
He Fang, William Perrie, Guosheng Zhang, Tao Xie, Shahid Khurshid, Kerri Warner, Jingsong Yang, Yijun He   +7 more
doaj   +1 more source

Exploring Polarimetric Properties Preservation for PolSAR Image Reconstruction With Complex‐Valued Convolutional Neural Networks

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
Polarimetric SAR data's inherent complex‐valued nature demands algorithms that work directly with complex representations, yet most deep‐learning approaches sidestep this by converting to the real domain. We implement and evaluate complex‐valued convolutional autoencoders that compress and accurately reconstruct full‐polarimetric SAR signals—preserving
Quentin Gabot, Joana Frontera‐Pons, Jérémy Fix, Chengfang Ren, Jean‐Philippe Ovarlez   +4 more
wiley   +1 more source

Results of Dual-Polarimetric Airborne Passive Radar

Polarimetry in remote sensing applications has emerged as a valuable technique for enhancing the information content of Synthetic Aperture Radar (SAR) images. Passive radar exploits existing illuminators of opportunity, e.g.
Markiton, Philipp M., Cristallini, Diego
core   +1 more source

Single-Pass Bistatic SAR Interferometry Using Fixed-Receiver Configurations: Theory and Experimental Validation [PDF]

, 2010
In this paper, bistatic interferometry using fixed-receiver configurations is addressed both theoretically and experimentally. The analytical expressions for interferometric phase and height sensitivity are derived, and a full interferometric processing ...
Mallorqui, Jordi J., Duque, Sergi, Lopez-Dekker, Paco, Sergi Duque, Paco Lopez-Dekker, Jordi J Mallorqui   +5 more
core   +1 more source

Space-borne polarimetric SAR sensors or the golden age of radar polarimetry

EPJ Web of Conferences, 2010
SAR Polarimetry represents an active area of research in Active Earth Remote Sensing. This interest is clearly supported by the fact that nowadays there exists, or there will exist in a very next future, a non negligible quantity of launched ...
Pottier E.
doaj   +1 more source

Multistatic Frequency and Polarimetry Adaptive Autofocus for Synthetic Aperture Radar Imaging of a Moving Target

IET Radar, Sonar &Navigation, Volume 20, Issue 1, January/December 2026.
This paper presents a multistatic, frequency‐ and polarimetry‐adaptive autofocus algorithm (F‐Pol) for SAR imaging of moving targets undergoing complex, six‐degrees‐of‐freedom (6‐DoF) motion. Building on Localised Threshold Sharpness (LTS), the method exploits agreement across frequency sub‐bands and polarisation channels to improve pulse‐by‐pulse ...
Anmol Rattan, Daniel Andre, Mark Finnis
wiley   +1 more source