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ionosphere (39) 39
astronomy & astrophysics (37) 37
geosciences, multidisciplinary (28) 28
meteorology & atmospheric sciences (22) 22
geochemistry & geophysics (21) 21
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wave propagation (7) 7
blue jets (6) 6
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excitation (6) 6
ionospheric irregularities (6) 6
lunar and planetary science and exploration (6) 6
neutrons (6) 6
physics, applied (6) 6
plasma waves and instabilities (6) 6
prospector (6) 6
streamers (6) 6
astrophysics (5) 5
auroral ionosphere (5) 5
discharges (5) 5
hf heating (5) 5
high frequencies (5) 5
instability (5) 5
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lend (5) 5
magnetosphere (5) 5
mathematical models (5) 5
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sprites (5) 5
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analysis (4) 4
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elf (4) 4
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ionospherics (4) 4
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[sdu]sciences of the universe [physics] (3) 3
absorption (3) 3
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atmospheres (3) 3
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Science, ISSN 0036-8075, 10/2010, Volume 330, Issue 6003, pp. 483 - 486
Hydrogen has been inferred to occur in enhanced concentrations within permanently shadowed regions and, hence, the coldest areas of the lunar poles. The Lunar... 
Italian ices | Hydrogen | Surface areas | REPORTS | Spacecraft | Neutrons | Lunar orbits | Regolith | Polar regions | Impact craters | Neutron counters | MERCURY | MOON | MARS | MULTIDISCIPLINARY SCIENCES | NEAR-SURFACE | ICE | PROSPECTOR | WATER | Extraterrestrial Environment | Spectrum Analysis | Moon | Research | Lunar geology | Lunar craters | Natural history | Mapping | Planetology | Neutron flux | Craters | Neutron detectors | Implantation | Missions | Drying
Journal Article
Journal of Geophysical Research Planets, ISSN 2169-9100, 12/2012, Volume 117, Issue E12, p. n/a
The latest neutron spectrometer measurements with the Lunar Exploration Neutron Detector (LEND) onboard the Lunar Reconnaissance Orbiter (LRO) are presented.... 
Lunar and Planetary Science and Exploration | epithermal neutrons | hydrogen | LEND | Moon | water | GEOCHEMISTRY & GEOPHYSICS | GAMMA-RAY | RECONNAISSANCE ORBITER | MOON | POLES | POLAR HYDROGEN DEPOSITS | SURFACE | DETECTOR EXPERIMENT LEND | WATER ICE | ABUNDANCES | PROSPECTOR | Planets | Planetology | Remote sensing | Scientific apparatus & instruments
Journal Article
Journal of Geophysical Research: Planets, ISSN 0148-0227, 12/2012, Volume 117, Issue E12, p. n/a
We use measurements from the Lunar Exploration Neutron Detector (LEND) collimated sensors during more than one year of the mapping phase of NASA's Lunar... 
epithermal neutrons | hydrogen | LEND | Moon | water | PSR | GEOCHEMISTRY & GEOPHYSICS | SOUTH-POLE | RECONNAISSANCE ORBITER | MOON | POLAR HYDROGEN DEPOSITS | SURFACE | NEUTRON DETECTOR | SPATIAL-DISTRIBUTION | PROSPECTOR | Planets | Planetology | Remote sensing | Scientific apparatus & instruments
Journal Article
Journal of Geophysical Research: Planets, ISSN 0148-0227, 12/2012, Volume 117, Issue E12, p. n/a
The data from the collimated sensors of the LEND instrument are shown to be of exceptionally high quality. Counting uncertainties are about 0.3% relative and... 
hydrogen | epithermal | Moon | neutrons | GEOCHEMISTRY & GEOPHYSICS | GAMMA-RAY SPECTROMETER | SOUTH-POLE | MARS ODYSSEY | RECONNAISSANCE ORBITER | DAN EXPERIMENT | MOON | ICE DEPOSITS | DYNAMIC ALBEDO | DETECTOR EXPERIMENT LEND | PROSPECTOR | Planetology | Planets
Journal Article
Journal of Geophysical Research: Space Physics, ISSN 0148-0227, 10/2012, Volume 117, Issue A10, p. n/a
We report on satellite observations of plasma density enhancements (ducts) in the topside ionosphere during four HAARP/BRIOCHE campaigns during 2009–2010.... 
ionospheric ducts | HF heating | HAARP | DRIFT MEASUREMENTS | RADIO-WAVES | MODEL | AIRGLOW | ASTRONOMY & ASTROPHYSICS | Space | Atmospheric sciences | Plasma physics
Journal Article
Journal of Geophysical Research: Space Physics, ISSN 0148-0227, 07/2010, Volume 115, Issue A7, p. n/a
Journal Article
Physics of Plasmas, ISSN 1070-664X, 03/2014, Volume 21, Issue 3, p. 32122
Journal Article
Journal of Geophysical Research: Space Physics, ISSN 2169-9380, 07/2014, Volume 119, Issue 7, pp. 5821 - 5829
About two decades ago, researchers discovered upward propagating flashes of light originating above thunderstorms. Due to their distinctive, principally blue... 
blue jets | lightning leader | ELECTRICAL DISCHARGES | LEADER | IONOSPHERE | ASTRONOMY & ASTROPHYSICS | THUNDERSTORM | THUNDERCLOUD | AIR | STREAMERS | Simulation | Phase transitions | Atmosphere | Blue jets (atmospherics) | Atmospheres | Nonuniform | Computer simulation | Lightning | Color | Streamer formation | Channels | Hysteresis
Journal Article
Journal of Geophysical Research: Space Physics, ISSN 2169-9380, 12/2018, Volume 123, Issue 12, pp. 10,301 - 10,309
Journal Article
Geophysical Research Letters, ISSN 0094-8276, 04/2010, Volume 37, Issue 7, p. n/a
Strong electron heating by the injection of highly powerful HF waves can lead to the formation of ionospheric plasma density perturbations that stretch along... 
wave propagation | ionospheric ducts | HF heating | RADIO-WAVES | GEOSCIENCES, MULTIDISCIPLINARY | PLASMA | DEMETER | Atmospheric sciences | Magnetism | Ionospherics | Perturbation methods | Heating | Ducts | Ion temperature | Hafnium | Tools | Density
Journal Article
Physics of Plasmas, ISSN 1070-664X, 03/2012, Volume 19, Issue 3, pp. 033512 - 033512-4
In this paper the dynamic contraction of the current channel inside a quasineutral positive column of a self-sustained glow discharge in a rectangular duct... 
PRESSURE | CONSTRICTION | PLASMA | INSTABILITY | CURRENT-CHANNEL | PHYSICS, FLUIDS & PLASMAS
Journal Article
Geophysical Research Letters, ISSN 0094-8276, 04/2006, Volume 33, Issue 7, pp. L07103 - n/a
Reply to comment on 'The magnetic response of the ionosphere to pulsed HF heating' by M. T. Rietveld and P. Stubbe 
Active experiments | Current systems | Ionosphere | Auroral ionosphere | WAVES | GEOSCIENCES, MULTIDISCIPLINARY
Journal Article
Journal of Geophysical Research: Planets, ISSN 0148-0227, 12/2012, Volume 117, Issue E12, p. n/a
Results are presented for the LEND instrument onboard LRO for the detection of local spots of suppression and excess of epithermal neutron emission at the... 
LRO | moon | hydrogen | LEND | neutrons | water | GEOCHEMISTRY & GEOPHYSICS | SOUTH-POLE | HYDROGEN | MERCURY | MARS ODYSSEY | LUNAR RECONNAISSANCE ORBITER | ICE DEPOSITS | NEAR-SURFACE | PLUME | NEUTRON DETECTOR | EMISSION | Geochemistry | Spectroscopy | Materials science | Planets | Moon | Planetology
Journal Article
Geophysical Research Letters, ISSN 0094-8276, 09/2008, Volume 35, Issue 17, pp. L17104 - n/a
It is well known that strong electron heating by a powerful HF‐facility can lead to the formation of electron and ion density perturbations that stretch along... 
Active experiments | Magnetospheric Physics | Ionosphere | Plasma waves and instabilities | Ionospheric irregularities | ion outflow | DEMETER satellite | HAARP | RADIO-WAVES | GEOSCIENCES, MULTIDISCIPLINARY | ELECTROJET | DEMETER | ABSORPTION | Sciences of the Universe
Journal Article
Journal of Infrared, Millimeter, and Terahertz Waves, ISSN 1866-6892, 3/2011, Volume 32, Issue 3, pp. 380 - 402
Journal Article
Radio Science, ISSN 0048-6604, 06/2016, Volume 51, Issue 6, pp. 704 - 717
Journal Article
Radio Science, ISSN 0048-6604, 07/2016, Volume 51, Issue 7, pp. 1188 - 1198
Journal Article