Results 21 to 30 of about 1,814,299 (311)

On Extreme Winds at L-Band with the SMAP Synthetic Aperture Radar

open access: yesRemote Sensing, 2019
In this letter, we discuss some observations of the Soil Moisture Active Passive (SMAP) mission’s high-resolution synthetic aperture radar (SAR) for extreme winds and tropical cyclones.
Alexander G. Fore   +4 more
doaj   +1 more source

The Winds and Currents Mission Concept

open access: yesFrontiers in Marine Science, 2019
The Winds and Currents Mission (WaCM) is a proposed approach to meet the need identified by the NRC Decadal Survey for the simultaneous measurements of ocean vector winds and currents. WaCM features a Ka-band pencil-beam Doppler scatterometer able to map
Ernesto Rodríguez   +6 more
doaj   +1 more source

The Effect of Error Non-Orthogonality on Triple Collocation Analyses

open access: yesRemote Sensing, 2022
Triple collocation analysis is an established technique for calculating the relative linear intercalibration coefficients and observation error variances for physical quantities measured simultaneously in space and time by three different observation ...
Jur Vogelzang   +2 more
doaj   +1 more source

Improved Use of Scatterometer Measurements by Using Stress-Equivalent Reference Winds

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2017
Numerical weather prediction (NWP) and buoy ocean surface winds show some systematic differences with satellite scatterometer and radiometer wind measurements, both in statistical results and in local geographical regions. It is possible to rescale these
Jos de Kloe, Ad Stoffelen, Anton Verhoef
doaj   +1 more source

Wind Stress Vector over Ocean Waves

open access: yesJournal of Physical Oceanography, 2003
Abstract Previous investigations of the wind stress in the marine surface layer have primarily focused on determining the stress magnitude (momentum flux) and other scalar variables (e.g., friction velocity, drag coefficient, roughness length). However, the stress vector is often aligned with a direction different from that of the mean wind flow.
A. A. Grachev   +4 more
openaire   +1 more source

On the Optimal Design of Doppler Scatterometers

open access: yesRemote Sensing, 2018
Pencil-beam Doppler scatterometers are a promising remote sensing tool for measuring ocean vector winds and currents from space. While several point designs exist in the literature, these designs have been constrained by the hardware they inherited, and ...
Ernesto Rodriguez
doaj   +1 more source

Influence of Residual Amplitude and Phase Error for GF-3 Quad-Polarization SAR on Wind Vector Retrieval

open access: yesRemote Sensing, 2022
High-resolution wind vector is important to investigate local winds’ variability over the global ocean. Quad-polarization Synthetic Aperture Radar (SAR) can provide wind vector independently without any external wind direction inputs.
Xiaochen Wang   +5 more
doaj   +1 more source

Integrated Observations of Global Surface Winds, Currents, and Waves: Requirements and Challenges for the Next Decade

open access: yesFrontiers in Marine Science, 2019
Ocean surface winds, currents, and waves play a crucial role in exchanges of momentum, energy, heat, freshwater, gases, and other tracers between the ocean, atmosphere, and ice.
Ana B. Villas Bôas   +27 more
doaj   +1 more source

Southern hemisphere low level wind circulation statisticsfrom the Seasat scatterometer [PDF]

open access: yesAnnales Geophysicae, 1994
Analyses of remotely sensed low-level wind vector data over the Southern Ocean are performed. Five-day averages and monthly means are created and the month-to-month variability during the winter (July-September) of 1978 is investigated.
G. Levy
doaj   +1 more source

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