Results 1 to 10 of about 2,512 (168)

Characterization of the Amazon Rainforest Backscatter at X-Band Using TanDEM-X Data

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The radiometric calibration of spaceborne SAR products plays a key role for ensuring a good performance of the whole end-to-end system and requires a precise knowledge of both the radar system and the illuminated target on ground.
Luca Dell'Amore, Jose-Luis Bueso-Bello, Patrick Klenk, Jens Reimann, Paola Rizzoli   +4 more
doaj   +1 more source

Unusual SuperDARN Backscatter During the 11 May 2024 Geomagnetic Storm

Space Weather
A geomagnetic storm, one of the largest in this solar cycle, was launched on 10 May 2024, producing spectacular auroral displays that could be observed across the continental United States (US) at middle and low latitudes.
B. S. R. Kunduri, J. B. H. Baker, J. M. Ruohoniemi, J.‐P. St. Maurice, Y. Nishimura, P. J. Erickson, J. C. Foster, S. E. Milan, K. T. Sterne, E. G. Thomas   +9 more
doaj   +1 more source

Deterministic chaos at the ocean surface: applications and interpretations [PDF]

Nonlinear Processes in Geophysics, 1998
Ocean surface, grazing-angle radar backscatter data from two separate experiments, one of which provided coincident time series of measured surface winds, were found to exhibit signatures of deterministic chaos.
A. J. Palmer, C. W. Fairall, R. A. Kropfli   +2 more
doaj  

Sensitivity of L-Band SAR Backscatter to Aboveground Biomass of Global Forests

Remote Sensing, 2016
Synthetic Aperture Radar (SAR) backscatter measurements are sensitive to forest aboveground biomass (AGB), and the observations from space can be used for mapping AGB globally.
Yifan Yu, Sassan Saatchi
doaj   +1 more source

Evaluation of Different Radiative Transfer Models for Microwave Backscatter Estimation of Wheat Fields

Remote Sensing, 2020
This study aimed to analyze existing microwave surface (Oh, Dubois, Water Cloud Model “WCM”, Integral Equation Model “IEM”) and canopy (Water Cloud Model “WCM”, Single Scattering Radiative Transfer “SSRT”) Radiative Transfer (RT) models and assess ...
Thomas Weiß, Thomas Ramsauer, Alexander Löw, Philip Marzahn   +3 more
doaj   +1 more source

Drizzle Measurements Using High Spectral Resolution Lidar and Radar Data

EPJ Web of Conferences, 2016
The ratio of millimeter radar and High Spectral Resolution Lidar (HSRL) backscatter are used to determine drizzle rates which are compared to conventional ground based measurements.
Eloranta Edwin W.
doaj   +1 more source

Joint Monitoring of Ground and Sky for Cereal Crops Based on Scatterometer Measurement and ASAR Imagesb

Journal of Electronic Science and Technology, 2019
The joint monitoring of the ground and sky for cereal crops based on microwave data has become a popular method for researches on earth surface objects.
Lei He, Feng-Jin Xiao
doaj   +1 more source

Radar Data for Identifying the Characteristics of Tropical Forest Stands

Forum Geografi, 2016
Radar is one of remote sensing technology which utilizes active electromagnetic energy and are able to provide information about the characteristics of forest stand.
Agus Wuryanta
doaj  

The relationship between VHF radar auroral backscatter amplitude and Doppler velocity: a statistical study

Annales Geophysicae
A statistical investigation of the relationship between VHF radar auroral backscatter intensity and Doppler velocity has been undertaken with data collected from 8 years operation of the Wick site of the Sweden And Britain Radar-auroral Experiment (SABRE)
B. A. Shand, M. Lester, T. K. Yeoman
doaj  

Remote Sensing of Organic Films on the Water Surface Using Dual Co-Polarized Ship-Based X-/C-/S-Band Radar and TerraSAR-X

Remote Sensing, 2018
Microwave radar is a well-established tool for all-weather monitoring of film slicks which appear in radar imagery of the surface of water bodies as areas of reduced backscatter due to suppression of short wind waves.
Stanislav A. Ermakov, Irina A. Sergievskaya, José C.B. da Silva, Ivan A. Kapustin, Olga V. Shomina, Alexander V. Kupaev, Alexander A. Molkov   +6 more
doaj   +1 more source