Results 21 to 30 of about 3,516,371 (307)

Global geochemical fingerprinting of plume intensity suggests coupling with the supercontinent cycle

open access: yesNature Communications, 2019
The links between plate tectonics and deep mantle structure remain unclear. Here, the authors demonstrate that transition elements (Ni, Cr, and Fe/Mn) in basaltic rocks can be used as a tool to trace plume-related magmatism through Earth history, and ...
Hamed Gamal EL Dien   +4 more
doaj   +1 more source

Dynamical Models of Planetary Nebulae

open access: yesThe Astrophysical Journal, 1967
Dynamical models of spherically symmetric optically thin planetary nebulas taking into account thermal behavior of ...
S. Sofia, J. H. Hunter
openaire   +2 more sources

Pitting damage levels estimation for planetary gear sets based on model simulation and grey relational analysis [PDF]

open access: yes, 2011
The planetary gearbox is a critical mechanism in helicopter transmission systems. Tooth failures in planetary gear sets will cause great risk to helicopter operations.
Gu, Fengshou   +3 more
core   +2 more sources

Resolving glacial isostatic adjustment (GIA) in response to modern and future ice loss at marine grounding lines in West Antarctica [PDF]

open access: yesThe Cryosphere, 2022
Accurate glacial isostatic adjustment (GIA) modelling in the cryosphere is required for interpreting satellite, geophysical and geological records and for assessing the feedbacks of Earth deformation and sea-level change on marine ice-sheet grounding ...
J. X. W. Wan   +4 more
doaj   +1 more source

Long extra-tropical planetary wave propagation in the presence of slowly varying mean flow and bottom topography. II: ray propagation and comparison with observations [PDF]

open access: yes, 2003
Ray theory is used to predict phase and group velocities for long planetary waves under realistic, albeit slowly varying, oceanic conditions. The results are compared with local theory using fields smoothed to the same amount (9° latitude/longitude) as ...
Killworth, Peter D.   +8 more
core   +1 more source

Multiple satellite observations of oceanic planetary waves: techniques and findings [PDF]

open access: yes, 2003
Recent satellite-based observations of oceanic planetary waves have improved our knowledge of the wave properties and lead to advancements in the theory.
Cipollini, Paolo
core   +1 more source

The Alaskan Summer 2019 Extreme Heat Event: The Role of Anthropogenic Forcing, and Projections of the Increasing Risk of Occurrence

open access: yesEarth's Future, 2021
Extreme heat occurred over Alaska in June–July 2019, posing risks to infrastructure, ecosystem, and human health. It is vital to improve our understanding of the causes of such events and the extent to which anthropogenic forcing may alter their ...
Sarah K. Weidman   +3 more
doaj   +1 more source

Navigating fundamental tensions towards a decolonial relational vision of planetary health.

open access: yes, 2023
Planetary health has an important role to play in guiding humanity towards a healthy, equitable, and sustainable future. However, given planetary health's dominant colonial and capitalist underpinning ideologies, it risks reinscribing the same ...
Macmillan, Alexandra   +2 more
core   +1 more source

Summary of the Second International Planetary Dunes Workshop: Planetary Analogs — Integrating Models, Remote Sensing, and Field Data, Alamosa, Colorado, USA, May 18–21, 2010 [PDF]

open access: yes, 2010
The Second International Planetary Dunes Workshop took place in Alamosa, Colorado, USA from May 18–21, 2010. The workshop brought together researchers from diverse backgrounds to foster discussion and collaboration regarding terrestrial and extra ...
Tirsch, D.   +31 more
core   +1 more source

Dynamical Evolution of Planetary Systems [PDF]

open access: yes, 2013
to be published in "Planets, Stars and Stellar Systems", P. Kalas and L. French (eds.)
openaire   +5 more sources

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