Results 21 to 30 of about 1,202,402 (151)

Simultaneous Cassini VIMS and UVIS observations of Saturn's southern aurora : comparing emissions from H, H2 and H3+ at a high spatial resolution [PDF]

open access: yes, 2011
Here, for the first time, temporally coincident and spatially overlapping Cassini VIMS and UVIS observations of Saturn's southern aurora are presented. Ultraviolet auroral H and H2 emissions from UVIS are compared to infrared H3+ emission from VIMS.
Baines, K. H.   +9 more
core   +5 more sources

High-latitude electromagnetic and particle energy flux during an event with sustained strongly northward IMF [PDF]

open access: yesAnnales Geophysicae, 2005
We present a case study of a prolonged interval of strongly northward orientation of the interplanetary magnetic field on 16 July 2000, 16:00-19:00 UT to characterize the energy exchange between the magnetosphere and ionosphere for conditions ...
H. Korth   +3 more
doaj   +1 more source

Coordinated Cluster and ground-based instrument observations of transient changes in the magnetopause boundary layer during an interval of predominantly northward IMF: relation to reconnection pulses and FTE signatures [PDF]

open access: yesAnnales Geophysicae, 2001
We study a series of transient entries into the low-latitude boundary layer (LLBL) of all four Cluster spacecraft during an outbound pass through the mid-afternoon magnetopause ( [ XGSM, YGSM, ZGSM ] ≈ [ 2, 7, 9 ] RE).
M. Lockwood   +39 more
doaj   +1 more source

Dynamics for geomagnetic pulsations, field-aligned currents, and airglow at mid-latitudes within substorm activations during superstorms

open access: yesГеодинамика и тектонофизика, 2019
Within substorm activations during two superstorms (2000 and 2003) from the observations at mid-latitude geomagnetic observatories, we study short-period irregular geomagnetic pulsations and airglow in the 557.7 nm and 630.0 nm atomic oxygen emission ...
Yu. Yu. Klibanova   +5 more
doaj   +1 more source

Signature of Saturn's auroral cusp : simultaneous Hubble Space Telescope FUV observations and upstream solar wind monitoring [PDF]

open access: yes, 2005
Model simulations by Bunce et al. (2005a) have shown that direct precipitation of electrons in Saturn's dayside cusp regions is not capable of producing significant FUV aurora.
Cowley, Stanley W. H.   +5 more
core   +5 more sources

Relative drift between black aurora and the ionospheric plasma [PDF]

open access: yes, 2005
International audienceBlack auroras are recognized as spatially well-defined regions within uniform diffuse aurora where the optical emission is significantly reduced.
J. Semeter   +7 more
core   +2 more sources

Mid‐latitude Jovian aurora produced by the impact of comet Shoemaker‐Levy‐9

open access: yesGeophysical Research Letters, 1995
We propose a theoretical interpretation of the mid‐latitude ultraviolet auroral emissions in Jupiter's atmosphere that were observed with the Hubble Space Telescope after the impact of comet Shoemaker‐Levy‐9 fragment K. The emissions were observed 47–57 minutes after the impact at a location ∼12° south of the (southern‐hemisphere) impact site and, with
T. W. Hill, A. J. Dessler
openaire   +1 more source

Analysis of ionospheric parameters by the software system “Aurora”

open access: yesE3S Web of Conferences, 2017
The paper presents methods of modeling and analysis of ionospheric parameters, which realized in the program system of complex analysis of geophysical parameters “Aurora”.
Polozov Yury, Fetisova Nadezhda
doaj   +1 more source

Exposure to heat waves and drought improves subsequent leaf heat tolerance for five oak species in southern California

open access: yesAmerican Journal of Botany, EarlyView.
Abstract Premise Given the threats of climate change, we investigated the impact of high temperatures separately and in combination with reduced soil water on leaf heat tolerance for five oaks (Fagaceae) with overlapping ranges in southern California, USA: Quercus agrifolia and Q. chrysolepis (evergreen species), Q. douglasii and Q.
Casey D. Wisely   +7 more
wiley   +1 more source

Hop production in a low‐trellis espalier system in the subtropical environment

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Hop cultivation (Humulus lupulus L.) is expanding into new regions, particularly under subtropical conditions. Traditionally, hop plants are trained using high‐trellis systems; however, a low‐trellis espalier structure may reduce establishment costs, facilitate phytosanitary management, and improve harvest uniformity.
Deise Maria Feltrin   +3 more
wiley   +1 more source

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