Results 1 to 10 of about 37 (33)

RapidScat Cross-Calibration Using the Double Difference Technique

Remote Sensing, 2017
RapidScat is a National Aeronautics and Space Administration (NASA) Ku-Band scatterometer that was operated onboard the International Space Station between September 2014 and August 2016 when the mission effectively ended after an irrecoverable ...
Josko Zec, W. Linwood Jones, Ruaa Alsabah, Ali Al-Sabbagh   +3 more
doaj   +3 more sources

The value of satellite soil moisture and snow cover data for the transfer of hydrological model parameters to ungauged sites [PDF]

Hydrology and Earth System Sciences, 2022
The recent advances in remote sensing provide opportunities for estimating the parameters of conceptual hydrologic models more reliably. However, the question of whether and to what extent the use of satellite data in model calibration may assist in ...
R. Tong, R. Tong, J. Parajka, J. Parajka, B. Széles, B. Széles, I. Greimeister-Pfeil, I. Greimeister-Pfeil, M. Vreugdenhil, J. Komma, P. Valent, P. Valent, G. Blöschl, G. Blöschl   +13 more
doaj   +1 more source

Scatterometer Sea Surface Wind Product Validation for HY-2C

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
The Chinese HY-2C satellite was launched on Sep. 21, 2020, carrying the new Ku-band scatterometer (HSCAT-C). Different from the other currently operating scatterometers, the HSCAT-C is in a nonsun-synchronous orbit and as such it will be useful for the ...
Zhixiong Wang, Juhong Zou, Ad Stoffelen, Wenming Lin, Anton Verhoef, Xiuzhong Li, Yijun He, Youguang Zhang, Mingsen Lin   +8 more
doaj   +1 more source

Analysis of Data-Derived SeaWinds Normalized Radar Cross-Section Noise

Remote Sensing, 2022
The normalized standard deviation (Kp) of the noise that affects scatterometer Normalized Radar Cross-Sections (σ0s) plays a key role in the ocean and more in particular coastal wind retrieval procedures and the a posteriori quality control.
Giuseppe Grieco, Ad Stoffelen, Anton Verhoef, Jur Vogelzang, Marcos Portabella   +4 more
doaj   +1 more source

Ocean Surface Wind Speed Dependence and Retrieval From Off‐Nadir CFOSAT SWIM Data

Earth and Space Science, 2021
In this study, we analyzed the ocean surface wind speed dependence of off‐nadir data from the Surface Waves Investigation and Monitoring (SWIM) aboard the Chinese‐French Oceanography Satellite (CFOSAT).
L. Ren, J. Yang, Y. Xu, Y. Zhang, G. Zheng, J. Wang, J. Dai, C. Jiang   +7 more
doaj   +1 more source

SodSAR: A Tower-Based 1–10 GHz SAR System for Snow, Soil and Vegetation Studies

Sensors, 2020
We introduce SodSAR, a fully polarimetric tower-based wide frequency (1–10 GHz) range Synthetic Aperture Radar (SAR) aimed at snow, soil and vegetation studies.
Jorge Jorge Ruiz, Risto Vehmas, Juha Lemmetyinen, Josu Uusitalo, Janne Lahtinen, Kari Lehtinen, Anna Kontu, Kimmo Rautiainen, Riku Tarvainen, Jouni Pulliainen, Jaan Praks   +10 more
doaj   +1 more source

Calibration and Cross Validation of a Global Wind and Wave Database of Altimeter, Radiometer, and Scatterometer Measurements

Journal of Atmospheric and Oceanic Technology, 2017
AbstractA combined satellite dataset consisting of nine altimeter, 12 radiometer, and two scatterometer missions of wind speed and wave height is calibrated in a consistent manner against NDBC data and independently validated against a separate buoy dataset. The data are investigated for stability as a function of time.
I. R. Young, E. Sanina, A. V. Babanin
openaire   +1 more source

Estimating Ocean Vector Winds and Currents Using a Ka-Band Pencil-Beam Doppler Scatterometer

Remote Sensing, 2018
Ocean surface currents and winds are tightly coupled essential climate variables, and, given their short time scales, observing them at the same time and resolution is of great interest.
Ernesto Rodríguez, Alexander Wineteer, Dragana Perkovic-Martin, Tamás Gál, Bryan W. Stiles, Noppasin Niamsuwan, Raquel Rodriguez Monje   +6 more
doaj   +1 more source

Pointing Calibration for Spaceborne Doppler Scatterometers

Remote Sensing
Doppler scatterometers have demonstrated the ability to measure wide-swath ocean surface currents from airborne platforms. Since platform velocities for spaceborne platforms are almost two orders of magnitude larger, errors in the knowledge of the ...
Ernesto Rodríguez, Hector Torres, Alexander G. Wineteer, Antoine Blondel, Clément Ubelmann   +4 more
doaj   +1 more source

Sea Surface Wind Speed Retrieval with a Dual-Branch Feature-Fusion Network Using GaoFen-3 Series SAR Data

Remote Sensing
To address the suboptimal radiometric calibration accuracy observed in specific beam codes of the GaoFen-3 (GF-3) series satellite for sea surface wind speed (SSWS) retrieval, this study introduces a calibration constant correction method based on the ...
Xing Li, Xiao-Ming Li, Yongzheng Ren, Ke Wu, Chunbo Li   +4 more
doaj   +1 more source