Results 1 to 10 of about 2,322 (215)

Atmospheric drag effects on modelled low Earth orbit (LEO) satellites during the July 2000 Bastille Day event in contrast to an interval of geomagnetically quiet conditions [PDF]

open access: yesAnnales Geophysicae, 2021
In this work, we simulated the atmospheric drag effect on two model SmallSats (small satellites) in low Earth orbit (LEO) with different ballistic coefficients during 1-month intervals of solar–geomagnetic quiet and perturbed conditions. The goal of this
V. U. J. Nwankwo   +10 more
doaj   +1 more source

An Instrumented Golden Eagle’s (Aquila chrysaetos) Long-Distance Flight Behavior

open access: yesAnimals, 2022
One-second-processed three-dimensional position observations transmitted from an instrumented golden eagle were used to determine the detailed long-range flight behavior of the bird.
Michael Garstang   +4 more
doaj   +1 more source

Metal concentrations in coastal sharks from The Bahamas with a focus on the Caribbean Reef shark

open access: yesScientific Reports, 2021
Over the last century anthropogenic activities have rapidly increased the influx of metals and metalloids entering the marine environment, which can bioaccumulate and biomagnify in marine top consumers.
Oliver N. Shipley   +7 more
doaj   +1 more source

Tsunamis Generated and Amplified by Atmospheric Pressure Waves Due to an Eruption over Seabed Topography

open access: yesGeosciences, 2022
Numerical simulations were generated using a nonlinear shallow-water model of velocity potential to study the fundamental processes of tsunami generation and amplification by atmospheric pressure waves.
Taro Kakinuma
doaj   +1 more source

Precursory or atmospheric waves?

open access: yes地震科学进展, 2021
On May 11 2008, some“precursory waves”were obviously recorded at five stations in Shanxi Province, but their real physical nature is still under debate.
Xiaolin Yang, Jinling Yang, Zigen Wei
doaj   +1 more source

The Hunga Tonga‐Hunga Ha'apai Volcanic Eruption as Seen in Satellite Microwave Observations and MiRS Temperature Retrievals

open access: yesGeophysical Research Letters, 2023
The strongest volcanic eruption since the 19th century occurred on 15 January 2022 at Hunga Tonga‐Hunga Ha'apai, generating unprecedented atmospheric waves not seen before in observations.
Yong‐Keun Lee   +3 more
doaj   +1 more source

Amateur Observers Witness the Return of Venus’ Cloud Discontinuity

open access: yesAtmosphere, 2022
Firstly identified in images from JAXA’s orbiter Akatsuki, the cloud discontinuity of Venus is a planetary-scale phenomenon known to be recurrent since, at least, the 1980s.
Emmanuel (Manos) Kardasis   +15 more
doaj   +1 more source

Ionosphere Influenced From Lower-Lying Atmospheric Regions

open access: yesFrontiers in Astronomy and Space Sciences, 2021
The ionosphere represents part of the upper atmosphere. Its variability is observed on a wide-scale temporal range from minutes, or even shorter, up to scales of the solar cycle and secular variations of solar energy input.
Petra Koucká Knížová   +8 more
doaj   +1 more source

Tropical Cyclone Winds and Inflow Angle Asymmetry From SAR Imagery

open access: yesGeophysical Research Letters, 2021
This study developed a morphological model for Tropical Cyclone (TC) wind and inflow angle asymmetry based on sea surface wind fields derived from spaceborne synthetic aperture radar (SAR) images.
Guosheng Zhang   +3 more
doaj   +1 more source

Inertial effects due to eruption-induced atmospheric disturbances identified by superconducting gravimeter observations at Matsushiro, Japan

open access: yesEarth, Planets and Space, 2022
The violent eruption of Hunga Tonga-Hunga Ha’apai volcano on January 15, 2022 induced strong atmospheric disturbances, which traveled around the world as atmospheric Lamb waves.
Yuichi Imanishi
doaj   +1 more source

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