Results 41 to 50 of about 843 (193)
Deep Learning-Based Soil Moisture Retrieval in CONUS Using CYGNSS Delay–Doppler Maps
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 National Aeronautics and Space Administration's Cyclone Global Navigation Satellite System (CYGNSS) mission has gained significant attention within the land remote sensing community for estimating soil moisture (SM) by using the Global Navigation ...
M M Nabi +3 more
doaj +1 more source
First Evidence of Mesoscale Ocean Eddies Signature in GNSS Reflectometry Measurements
Remote Sensing, 2020 Feasibility of sensing mesoscale ocean eddies using spaceborne Global Navigation Satellite Systems-Reflectometry (GNSS-R) measurements is demonstrated for the first time.
Mostafa Hoseini +5 more
doaj +1 more source
Exploring CYGNSS mission for surface heat flux estimates and analysis over tropical oceans
Frontiers in Marine Science, 2022 The Cyclone Global Navigation Satellite System (CYGNSS) mission can measure sea surface wind over tropical oceans with unprecedented temporal resolution and spatial coverage, so as to estimate surface latent and sensible heat fluxes (LHF and SHF).
Xiaohui Li +6 more
doaj +1 more source
Comparison of SAR and CYGNSS Surface Water Extent Metrics
IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2022 Many sensors are suitable for accurate delineation of open water extent, but in vegetated environments, the vegetation canopy can obscure the presence of standing water from detection. Detecting inundation extent in these vegetated environments is especially critical for identifying flooding extent where surface water may exceed flood boundaries and ...
Bruce D. Chapman +9 more
openaire +2 more sources
Improved CYGNSS Wind Speed Retrieval Using Significant Wave Height Correction
, 2021 This article presents the methodology for an improved estimation of the sea surface wind speed measured by the cyclone global navigation satellite system (CYGNSS) constellation of satellites using significant wave height (SWH) information as external ...
Christopher S. Ruf +2 more
core +1 more source
Temporal-Spatial Soil Moisture Estimation from CYGNSS Using Machine Learning Regression with a Pre-Classification Approach [PDF]
, 2021 Global Navigation Satellite System-Reflectometry (GNSS-R) can retrieve Earth's surface parameters, such as soil moisture (SM) using the reflected signals from GNSS constellations with advantages of non-contact, all-weather, real-time, and continuity ...
Y. Jia +6 more
core +1 more source
Remote Sensing, 2023 The retrieval of soil moisture (SM) using the Global Navigation Satellite System-Reflectometry (GNSS-R) technique has become a prominent topic in recent years.
Qidi Luo +7 more
doaj +1 more source
Introducing Reflected GNSS TEC Data Into ANCHOR Ionospheric Data Assimilation Model
Space Weather, Volume 24, Issue 5, May 2026.Abstract ANCHOR is a novel data assimilation (DA) algorithm developed at the U.S. Naval Research Laboratory to improve ionospheric nowcasting by increasing accuracy and decreasing computational cost. As a parameterized DA model, ANCHOR represents the ionosphere using physical parameters such as the F2 layer peak (Nm $Nm$F2), which characterizes a ...
Brenna Royersmith +5 more
wiley +1 more source
Water Resources Research, Volume 62, Issue 4, April 2026.Abstract Accurate rainfall information underpins land‐surface water budgets, extreme‐weather analyses, and climate‐model evaluation. Yet in many regions, rain gauge networks are sparse, making conventional calibration of bottom up rainfall products difficult. To address this, we propose a self calibration framework that removes the need for a dedicated
Mohammad Saeedi +4 more
wiley +1 more source
Remote Sensing, 2020 Ocean surface wind speed is an essential parameter for typhoon monitoring and forecasting. However, traditional satellite and buoy observations are difficult to monitor the typhoon due to high cost and low temporal-spatial resolution.
Hongsu Liu, Shuanggen Jin, Qingyun Yan
doaj +1 more source