Results 31 to 40 of about 1,305 (171)

Assimilation of DAWN Doppler wind lidar data during the 2017 Convective Processes Experiment (CPEX): impact on precipitation and flow structure [PDF]

Atmospheric Measurement Techniques, 2021
An improved representation of 3-D air motion and precipitation structure through forecast models and assimilation of observations is vital for improvements in weather forecasting capabilities.
S. Hristova-Veleva, S. Q. Zhang, S. Q. Zhang, F. J. Turk, Z. S. Haddad, R. C. Sawaya   +5 more
doaj   +1 more source

Quantifying insect migration across Bohai strait using weather radar

The Journal of Engineering, 2019
Weather radars provide continuous recording over extensive spatial coverage, which is valuable for biologists who observe and study biological activities over a wide range of temporal and spatial scales.
Kai Cui, Cheng Hu, Rui Wang, Siwei Li, Dongli Wu, Shuqing Ma   +5 more
doaj   +1 more source

Deep Learning on Airborne Radar Echograms for Tracing Snow Accumulation Layers of the Greenland Ice Sheet

Remote Sensing, 2021
Climate change is extensively affecting ice sheets resulting in accelerating mass loss in recent decades. Assessment of this reduction and its causes is required to project future ice mass loss.
Debvrat Varshney, Maryam Rahnemoonfar, Masoud Yari, John Paden, Oluwanisola Ibikunle, Jilu Li   +5 more
doaj   +1 more source

Airborne Multi-functional Maritime Surveillance Radar System Design and Key Techniques

Leida xuebao, 2019
As the main task load of the airborne platform for sea detection, the airborne multi-functional marine surveillance radar system has the following characteristics: the ability to operate in all weather conditions regularly, a wide detection range, and a ...
JIANG Qian, WU Hao, WANG Yanyu
doaj   +1 more source

First Spaceborne Version of Velocity-Azimuth Display Technique for Wind Field Retrieval on Cloud and Precipitation Radar

Atmosphere, 2020
Cloud and precipitation radar mounted on a polar orbiting satellite opens up a new opportunity for global wind observation to improve numerical weather forecasting and prevent weather disasters.
Yuexia Wang, Ming Wei, Quan Shi
doaj   +1 more source

Fast post-Doppler STAP with road map for traffic monitoring: overview and first results [PDF]

Advances in Radio Science, 2019
Synthetic aperture radar (SAR) is an efficient solution for road traffic monitoring due to its high spatial resolution and independence from daylight and weather conditions.
A. B. C. da Silva, S. V. Baumgartner, A. Moreira   +2 more
doaj   +1 more source

An Empirical Assessment of Temporal Decorrelation Using the Uninhabited Aerial Vehicle Synthetic Aperture Radar over Forested Landscapes

Remote Sensing, 2012
We present an empirical assessment of the impact of temporal decorrelation on interferometric coherence measured over a forested landscape. A series of repeat-pass interferometric radar images with a zero spatial baseline were collected with UAVSAR ...
Michelle Hofton, Naiara Pinto, Marco Lavalle, Ralph Dubayah, Scott Hensley, Marc Simard   +5 more
doaj   +1 more source

Digital surveillance of animals and nature recovery

People and Nature, EarlyView.
Abstract Digital surveillance technologies (DSTs) are widely applied in nature recovery for their potential to generate novel data on species and ecosystems through digital tracking, automation (e.g. from hazardous locations) and from newly recruited citizen scientists.
William M. Adams
wiley   +1 more source

A framework to evaluate and identify development requirements for land‐surface models at km‐scale resolution: Application to a semi‐arid and mountainous region

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This article provides a first evaluation of land‐surface models at the km‐scale resolutions at which they are used in weather and Earth‐system models. At these resolutions, the lateral transfers of water that organize landscapes play an important role in predicting evaporation correctly. Riparian processes and human water management for irrigation need
Jan Polcher, Julie Collignan, Juan Pablo Sierra Perez, Gabriele Arduini, Sophie Bastin, Martin Best, Aaron Boone, Manel Bravo, Francesca Covella, Jasper M. C. Denissen, Cenlin He, Simon Munier, Marc Prange, Elena Shevliakova   +13 more
wiley   +1 more source

New insights into convection‐permitting model simulations from a ZDR$$ {\boldsymbol{Z}}_{\mathbf{DR}} $$ diagnostic for raindrops

Quarterly Journal of the Royal Meteorological Society, EarlyView.
A polarimetric radar forward operator to simulate differential reflectivity (ZDR$$ {Z}_{\mathrm{DR}} $$) from rain was developed to evaluate simulated storms in the Met Office Unified Model (MetUM) for two case days of the Wessex Convection Experiment (WesCon) field campaign. Vertical columns of ZDR$$ {Z}_{\mathrm{DR}} $$, indicative of strong updrafts,
Chun Hay Brian Lo, Thorwald H. M. Stein, Christopher D. Westbrook, Paul R. Field, Kalli Furtado, Robert W. Scovell, Jonathan M. Wilkinson, Timothy Darlington, Humphrey W. Lean, Ryan R. Neely III, Christopher J. Walden   +10 more
wiley   +1 more source