Results 101 to 110 of about 37,976 (213)

Submesoscale dispersion in the vicinity of the Deepwater Horizon spill

open access: yes, 2014
Reliable forecasts for the dispersion of oceanic contamination are important for coastal ecosystems, society and the economy as evidenced by the Deepwater Horizon oil spill in the Gulf of Mexico in 2010 and the Fukushima nuclear plant incident in the ...
Beron-Vera, Francisco J.   +17 more
core   +1 more source

Studies of oceanic tectonics based on GEOS-3 satellite altimetry [PDF]

open access: yes
Using statistical analysis, geoidal admittance (the relationship between the ocean geoid and seafloor topography) obtained from GEOS-3 altimetry was compared to various model admittances.
Kaula, W. M.   +3 more
core   +1 more source

Laser altimetry surveying

open access: yes, 2006
Sistem za snimanje iz vazduha poznat kao LiDAR sistem (Light Detection and Ranging), predstavalja relativno nov način za prikupljanje podataka koji obezbeđuje veliki broj informacija o objektima na površini zemlje kao i o zemljišnim oblicima sa velikom gustinom trodimenzionalnih koordinata tačaka, omogućavajući visoki kvalitet predstavljanja snimljene ...
Nestorov, Ivan   +2 more
openaire   +1 more source

Distinctive Patterns of Water Level Change in Swedish Lakes Driven by Climate and Human Regulation

open access: yesWater Resources Research
Despite having approximately 100,000 lakes, Sweden has limited continuous gauged lake water level data. Although satellite radar altimetry (RA) has emerged as a popular alternative to measure water levels in inland water bodies, it has not yet been used ...
S. Aminjafari   +6 more
doaj   +1 more source

A Special Collection on Hydrogeodesy in a New Era of Satellites for Better Understanding and Management of Water Resources

open access: yesWater Resources Research
Hydrogeodesy is the discipline that measures the Earth's solid and aquatic surfaces and gravity field from space to study water resources and their changes over time. The Special Collections on Hydrogeodesy: Understanding Changes in Water Resources Using
Fernando Jaramillo   +5 more
doaj   +1 more source

Drone Height from Ground Determination Using GNSS-R Based on Dual-Frequency GPS/BDS Signals

open access: yesRemote Sensing
Conventional techniques to measure drone heights from the ground, including global navigation satellite systems (GNSSs), barometers, acoustic sensors, and LiDAR, are limited by their measurement ranges, an inability to directly obtain the height from the
Li Zhang   +4 more
doaj   +1 more source

Strategies for estimating the marine geoid from altimeter data [PDF]

open access: yes
In processing altimeter data from a spacecraft borne altimeter to estimate the fine structure of the marine geoid, a problem is encountered. In order to describe the geoid fine structure, a large number of parameters must be employed and it is not ...
Argentiero, P.   +2 more
core   +1 more source

Ku‐ and Ka‐Band Polarimetric Radar Waveforms and Snow Depth Estimation Over Multi‐Year Antarctic Sea Ice in the Weddell Sea

open access: yesGeophysical Research Letters
Antarctic sea ice has seen recent rapid declines in extent, but it remains unclear whether this is accompanied by thinning. Due to the relative abundance and complexity of overlying snow on sea ice, radar altimetry methods routinely deployed for sea ice ...
Rosemary Willatt   +5 more
doaj   +1 more source

Advancing mmWave Altimetry for Unmanned Aerial Systems: A Signal Processing Framework for Optimized Waveform Design

open access: yesDrones
This research advances millimeter-wave (mmWave) altimetry for unmanned aerial systems (UASs) by optimizing performance metrics within the constraints of inexpensive automotive radars.
Maaz Ali Awan   +3 more
doaj   +1 more source

Merging Recent Mean Sea Surface Into a 2023 Hybrid Model (From Scripps, DTU, CLS, and CNES)

open access: yesEarth and Space Science
In this paper, we compute a new hybrid mean sea surface (MSS) model by merging three recent models, CNES_CLS22, SCRIPPS_CLS22, and DTU21, and taking advantage of their respective features.
A. Laloue   +8 more
doaj   +1 more source

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