Results 71 to 80 of about 1,430 (223)

Remotely Sensed High‐Resolution Soil Moisture and Evapotranspiration: Bridging the Gap Between Science and Society

open access: yesWater Resources Research, Volume 61, Issue 5, May 2025.
Abstract This paper reviews the current state of high‐resolution remotely sensed soil moisture (SM) and evapotranspiration (ET) products and modeling, and the coupling relationship between SM and ET. SM downscaling approaches for satellite passive microwave products leverage advances in artificial intelligence and high‐resolution remote sensing using ...
Jingyi Huang   +24 more
wiley   +1 more source

Influence of CyGNSS L2 wind data on tropical cyclone analysis and forecasts in the coupled HAFS/HYCOM system

open access: yesFrontiers in Earth Science
This study examines the influence of NASA Cyclone Global Navigation Satellite System (CyGNSS) Level 2-derived 10 m (near-surface) wind speed over the ocean on analyses and forecasts within the NOAA operational Hurricane Analysis and Forecast System (HAFS)
Bachir Annane, Lewis J. Gramer
doaj   +1 more source

First spaceborne observation of sea surface height using GPS-reflectometry [PDF]

open access: yes, 2016
An analysis of spaceborne Global Positioning System reflectometry (GPS-R) data from the TechDemoSat-1 (TDS-1) satellite is carried out to image the ocean sea surface height (SSH).
Andersen O.   +7 more
core   +2 more sources

Implications of CMIP6 Models‐Based Climate Biases and Runoff Sensitivity on Runoff Projection Uncertainties Over Central India

open access: yesInternational Journal of Climatology, Volume 44, Issue 16, Page 5727-5744, 30 December 2024.
This paper presents a first‐ever assessment of the influence of diverse CMIP6 climate biases and associated runoff sensitivity on regional‐scale runoff projection uncertainty under non‐stationary climate. By employing variance decomposition, the study quantifies the uncertainty contribution of different components in the runoff modelling chain ...
Shoobhangi Tyagi   +5 more
wiley   +1 more source

Evaluation of Satellite-Based Global Navigation Satellite System Reflectometry (GNSS-R) Soil Moisture Products in Complex Terrain: A Case Study of the Yunnan–Guizhou Plateau

open access: yesRemote Sensing
Complex terrain is one of the main factors affecting the process of retrieving surface soil moisture using GNSS-R technology. This study evaluates the impact of complex terrain on surface soil moisture inversion using Cyclone Global Navigation Satellite ...
Yixiao Liu   +4 more
doaj   +1 more source

Multi‐Scale Soil Salinization Dynamics From Global to Pore Scale: A Review

open access: yesReviews of Geophysics, Volume 62, Issue 4, December 2024.
Abstract Soil salinization refers to the accumulation of water‐soluble salts in the upper part of the soil profile. Excessive levels of soil salinity affects crop production, soil health, and ecosystem functioning. This phenomenon threatens agriculture, food security, soil stability, and fertility leading to land degradation and loss of essential soil ...
Nima Shokri   +2 more
wiley   +1 more source

Rationale of GNSS Reflected Delay–Doppler Map (DDM) Distortions Induced by Specular Point Inaccuracies

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2020
Global navigation satellite system reflectometry (GNSS-R)-derived winds from the cyclone GNSS (CYGNSS) satellite constellation are expected to significantly improve weather forecasts in the tropical region.
Giuseppe Grieco   +2 more
doaj   +1 more source

Spaceborne GNSS-Reflectometry for ocean winds: First results from the UK TechDemoSat-1 mission [PDF]

open access: yes, 2015
First results are presented for ocean surface wind speed retrieval from reflected GPS signals measured by the Low-Earth-Orbiting UK TechDemoSat-1 satellite (TDS-1).
Foti, Giuseppe   +6 more
core   +1 more source

Hydrology on Solid Grounds? Integration Is Key to Closing Knowledge Gaps Concerning Landscape Subsurface Water Storage Dynamics

open access: yesHydrological Processes, Volume 38, Issue 11, November 2024.
An increasingly wide and diverse range of observational products of landscape subsurface water storage dynamics is maturing, while new ones are still being added; depicted here from cosmic‐ray neutron sensing (CRNS) to satellite missions such as GRACE‐FO and CYGNSS.
Sascha E. Oswald   +19 more
wiley   +1 more source

Developing the Test Bench for a Next-Generation Bistatic GNSS Reflectometry Receiver Instrument [PDF]

open access: yes, 2018
Recently, scientists have started to exploit global navigational satellite system (GNSS) signals for geophysical remote sensing using a technique called "reflectometry" (GNSS-R).
Linnabary, Ryan B.
core  

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