Results 11 to 20 of about 38,348 (235)

Research on Radio Altimetry in Urban Environments Based on Electromagnetic Simulation Echo Modeling Technology [PDF]

open access: yesSensors
As the low-altitude economy develops rapidly, precise radar altimetry is crucial for ensuring the safety and reliability of drone flights. In the context of urban radio detection, the presence of numerous buildings and ground surfaces gives rise to ...
Jian Xiong   +4 more
doaj   +2 more sources

The new CNES-CLS18 global mean dynamic topography [PDF]

open access: yesOcean Science, 2021
The mean dynamic topography (MDT) is a key reference surface for altimetry. It is needed for the calculation of the ocean absolute dynamic topography, and under the geostrophic approximation, the estimation of surface currents.
S. Mulet   +12 more
doaj   +1 more source

Arctic Sea-Ice Surface Elevation Distribution from NASA’s Operation IceBridge ATM Data

open access: yesRemote Sensing, 2022
In this paper, we characterize the sea-ice elevation distribution by using NASA’s Operation IceBridge (OIB) Airborne Topographic Mapper (ATM) L1B data over the Arctic Ocean during 94 Spring campaigns between 2009 and 2019.
Donghui Yi   +5 more
doaj   +1 more source

Development of a GNSS/INS buoy array in preparation for SWOT validation in Bass Strait

open access: yesFrontiers in Marine Science, 2023
In preparation for validation of the swath-based altimetry mission (Surface Water Oceanography Topography, SWOT), we developed a buoy array, equipped with Global Navigation Satellite System/Inertial Navigation System, capable of accurately observing sea ...
Boye Zhou   +7 more
doaj   +1 more source

MESI: A Multiparameter Eddy Significance Index

open access: yesEarth and Space Science, 2023
In this study, we introduce the Multiparameter Eddy Significance Index (MESI) for use in conjunction with mesoscale eddy tracking to estimate the impact of mesoscale eddies on the upper ocean and marine ecosystems.
H. L. Roman‐Stork   +2 more
doaj   +1 more source

Monitoring of Hydrological Resources in Surface Water Change by Satellite Altimetry

open access: yesRemote Sensing, 2022
Satellite altimetry technology has unparalleled advantages in the monitoring of hydrological resources. After decades of development, satellite altimetry technology has achieved a perfect integration from the geometric research of geodesy to the natural ...
Wei Li   +7 more
doaj   +1 more source

Satellite Altimetry: Achievements and Future Trends by a Scientometrics Analysis

open access: yesRemote Sensing, 2022
Scientometric reviews, facilitated by computational and visual analytical approaches, allow researchers to gain a thorough understanding of research trends and areas of concentration from a large number of publications.
Lei Yang   +8 more
doaj   +1 more source

Challenges and Evolution of Water Level Monitoring towards a Comprehensive, World-Scale Coverage with Remote Sensing

open access: yesRemote Sensing, 2022
Surface water availability is a fundamental environmental variable to implement effective climate adaptation and mitigation plans, as expressed by scientific, financial and political stakeholders.
Mélissande Machefer   +4 more
doaj   +1 more source

Integration of HF Radar Observations for an Enhanced Coastal Mean Dynamic Topography

open access: yesFrontiers in Marine Science, 2020
Satellite altimeters provide continuous information of the sea level variability and mesoscale processes for the global ocean. For estimating the sea level above the geoid and monitoring the full ocean dynamics from altimeters measurements, a key ...
Ainhoa Caballero   +7 more
doaj   +1 more source

High-resolution airborne observations of sea-ice pressure ridge sail height

open access: yesAnnals of Glaciology, 2018
Pressure ridges impact the mass, energy and momentum budgets of the sea-ice cover and present an obstacle to transportation through ice-infested waters. Quantifying ridge characteristics is important for understanding total sea-ice mass and for improving
K. Duncan   +5 more
doaj   +1 more source

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