نتایج جستجو برای: a weak wind shearnevertheless

تعداد نتایج: 13480025  

2013
Nina Dehnhard Katrin Ludynia Maud Poisbleau Laurent Demongin Petra Quillfeldt

Due to their restricted foraging range, flightless seabirds are ideal models to study the short-term variability in foraging success in response to environmentally driven food availability. Wind can be a driver of upwelling and food abundance in marine ecosystems such as the Southern Ocean, where wind regime changes due to global warming may have important ecological consequences. Southern rock...

1997
Hans de Nivelle

In this paper we study the completeness of resolution when it is restricted by a non-liftable order and by weak subsumption. A non-liftable order is an order that does not satisfy A ≺ B ⇒ AΘ ≺ BΘ. Clause c1 weakly subsumes c2 if c1Θ ⊆ c2, and Θ is a renaming substitution. We show that it is natural to distinguish 2 types of non-liftable orders and 3 types of weak subsumption, which correspond n...

Journal: :Frontiers in Astronomy and Space Sciences 2022

During a specific time window while approaching the Sun, longitudinal speed of Parker Solar Probe matches that Sun’s rotation. The spacecraft therefore co-rotates with and as long it does so, is immersed in solar-wind plasma same flow tube. This unique feature Probe’s orbital configuration exploited this work for first time, to investigate spectral properties turbulence stream, from large small...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Shineng Hu Alexey V Fedorov

Intraseasonal wind bursts in the tropical Pacific are believed to affect the evolution and diversity of El Niño events. In particular, the occurrence of two strong westerly wind bursts (WWBs) in early 2014 apparently pushed the ocean-atmosphere system toward a moderate to strong El Niño--potentially an extreme event according to some climate models. However, the event's progression quickly stal...

2006
O. Khabarova V. Pilipenko E. Rudenchik

The presented results, concerning the features of the solar wind plasma structure as observed by spacecraft upstream of Earth, could be used for development of middle-term forecasts of magnetic storms. We have analyzed 1-hour data for 1995-2005 and a whole year of 1-min data during solar minimum (1995) and during solar maximum (2000) with 48 and 60 storms, respectively. The long-term statistica...

Journal: :international journal of advanced biological and biomedical research 2014
dariush rahimi fariba salahshour

in present world, inequality and uncertainty is high in section of agriculture production and food security of a great amount of people in developing countries is not supplied. based on studies of international organizations, about a third of produced food for human consumption in worldwide is lost or wasted. while in developing countries, there is price enhancement, decrease in access to healt...

2007
M. Latif N. Keenlyside J. Bader

[1] The anomalously strong hurricane activity in the Atlantic sector during the recent years led to a controversy about the impact of global warming on hurricane activity in the Atlantic sector. Here we show that the temperature difference between the tropical North Atlantic and the tropical Indian and Pacific Oceans (IndoPacific) is a key parameter in controlling the vertical wind shear over t...

2016
S L Gray R G Harrison

The British Isles benefits from dense meteorological observation networks, enabling insights into the still-unresolved effects of solar eclipse events on the near-surface wind field. The near-surface effects of the solar eclipse of 20 March 2015 are derived through comparison of output from the Met Office's operational weather forecast model (which is ignorant of the eclipse) with data from two...

2009
J. L. Grenfell

Previous studies have shown that extrasolar Earth-like planets in close-in habitable zones aroundM-stars are weakly protected against galactic cosmic rays (GCRs), leading to a strongly increased particle flux to the top of the planetary atmosphere. Two main effects were held responsible for the weak shielding of such an exoplanet: (a) For a close-in planet, the planetary magnetic moment is stro...

1998
JEROME A. SMITH

Surface velocity patterns and upper ocean density profiles are presented from a period following a sudden increase in wind. A prior wind speed of 8 m/s failed to produce visible signs of Langmuir circulation. After the wind speed increased to 13 m/s, Langmuir circulation developed within 15 min. The initial scale observed was about 16 m, streak to streak, and may have been restricted by the dep...

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