Results 71 to 80 of about 985 (191)

Assessment of CYGNSS Wind Speed Retrieval Uncertainty

open access: yesIEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2019
Measurements of near surface wind speed made by the Cyclone Global Navigation Satellite System (CYGNSS) constellation of GNSS-R satellites are evaluated and their uncertainty is assessed in two ways. A bottom-up assessment begins with a model for the error in engineering measurements and propagates that error through the wind speed retrieval algorithm ...
Christopher S. Ruf   +2 more
openaire   +2 more sources

tjlang/PyGNSS: PyGNSS: Python Interface to Cyclone Global Navigation Satellite System (CYGNSS) Wind Dataset

open access: yes, 2018
<p>Python Interface to Cyclone Global Navigation Satellite System (CYGNSS) Wind Dataset.
Timothy Lang
core   +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

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

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

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

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

CYGNSS raw IF data processing at ICE-CSIC/IEEC and data availability to the Science Team

open access: yes, 2021
Talk delivered in CYGNSS Science Team Online Meeting online, 09-11 June 2020Description of the ICE-CSIC/IEEC data sets generated from NASA/CyGNSS intermediate frequency raw data ...
Ribó, Serni   +3 more
core  

The Potential of Hydrogeodesy to Address Water‐Related and Sustainability Challenges

open access: yesWater Resources Research, Volume 60, Issue 11, November 2024.
Abstract Increasing climatic and human pressures are changing the world's water resources and hydrological processes at unprecedented rates. Understanding these changes requires comprehensive monitoring of water resources. Hydrogeodesy, the science that measures the Earth's solid and aquatic surfaces, gravity field, and their changes over time ...
Fernando Jaramillo   +56 more
wiley   +1 more source

Joint Use of Spaceborne Microwave Sensor Data and CYGNSS Data to Observe Tropical Cyclones

open access: yesRemote Sensing, 2020
The joint use of spaceborne microwave sensor data and Cyclone Global Navigation Satellite System (CYGNSS) data to observe tropical cyclones (TCs) is presented in this paper.
Shiwei Wang, Shuzhu Shi, Binbin Ni
doaj   +1 more source

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