Results 41 to 50 of about 1,160,501 (293)

The optimization method for wind field retrieval using high-density radar networks and its application effect verification

open access: yes暴雨灾害
High-quality three-dimensional wind field retrieval products from Doppler weather radars are essential data for studying and forecasting mesoscale weather systems.
Ran XU, Liping LIU
doaj   +1 more source

Ocean Wind Retrieval Models for RADARSAT Constellation Mission Compact Polarimetry SAR

open access: yesRemote Sensing, 2018
We propose two new ocean wind retrieval models for right circular-vertical (RV) and right circular-horizontal (RH) polarizations respectively from the compact-polarimetry (CP) mode of the RADARSAT Constellation Mission (RCM), which is scheduled to be ...
Tianqi Sun   +7 more
doaj   +1 more source

First Assessment of CyGNSS-Incorporated SMAP Sea Surface Salinity Retrieval Over Pan-Tropical Ocean

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
In sea surface salinity (SSS) retrieval using L-band passive radiometry, radiometer-independent ocean wind speed is needed as auxiliary data. Wind speed data from scatterometer and weather models are commonly used as auxiliary data in satellite SSS ...
Baojian Liu   +7 more
doaj   +1 more source

Wind of change: retrieving exoplanet atmospheric winds from high-resolution spectroscopy [PDF]

open access: yesAstronomy & Astrophysics, 2020
Context. The atmosphere of exoplanets has been studied extensively in recent years, making use of numerical models to retrieve chemical composition, dynamical circulation, or temperature from the data. One of the best observational probes in transmission is the sodium doublet thanks to its extensive cross-section.
J. V. Seidel   +7 more
openaire   +4 more sources

Optimal Interpolation Model for Synthetic Aperture Radar Wind Retrieval

open access: yesFrontiers in Earth Science, 2020
The variational model inversion (VAR) method for synthetic aperture radar (SAR) wind retrieval based on the Bayesian theory can overcome the limitations of the traditional wind streak algorithm by introducing background wind and considering all sources ...
Wei Zhang   +4 more
doaj   +1 more source

C-band scatterometer and wind-field retrieval

open access: yesCanadian Journal of Remote Sensing, 2003
The wind scatterometer is a microwave active sensor capable of simultaneously measuring the normalized radar cross section (?o) of the sea surface with high radiometric accuracy at different azimuth angles. The scattering process governing the electromagnetic wave - sea surface interaction allows these measurements to be related to the sea surface wind
MIGLIACCIO, Maurizio   +2 more
openaire   +4 more sources

WIND SHEAR IDENTIFICATION WITH THE RETRIEVAL WIND OF DOPPLER WEARTH RADAR [PDF]

open access: yesThe International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2018
Abstract. A new method, which based on the wind field retrieval algorithm of Volume Velocity Process (VVP), has been used to identified the intensity of wind shear occurred in a severe convection process in Guangzhou. The intensity of wind shear’s strength shown that new cells would be more likely to generate in areas where the magnitude generally ...
S. Zhou, Y. Cui, H. Zheng, T. Zhang
openaire   +3 more sources

Wind Energy Teacher's Guide [PDF]

open access: yes, 2003
This guide, created by the American Wind Association, with support from the U.S. Department of Energy, is a learning tool about wind energy targeted toward grades K-12.

core   +1 more source

Technical Evaluation of Sentinel-1 IW Mode Cross-Pol Radar Backscattering from the Ocean Surface in Moderate Wind Condition

open access: yesRemote Sensing, 2017
The Sentinel-1 synthetic aperture radar (SAR) allows sufficient resources for cross-pol wind speed retrievals over the ocean. In this paper, we present technical evaluation on wind retrieval from both Sentinel-1A and Sentinel-1B IW cross-pol images ...
Lanqing Huang   +4 more
doaj   +1 more source

Review of Wind Retrieval Algorithms

open access: yes, 2000
NERSC Technical Report no. 194. Funded by the European Union through Contract no.
Johannesen, Ola M.   +4 more
openaire   +1 more source

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