The influence of geomagnetic activity on polar cap absorption
Cosmic noise absorption data on polar cap analyzed for geomagnetic activity
NOISE SPECTRUM↗
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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Interplanetary magnetic field asymmetries and their effects on polar cap absorption events and forbush decreases.
Flare plasma cloud model with magnetic field asymmetry for solar-terrestrial system with reference to polar cap absorption and Forbush decrease
INTERPLANETARY MAGNETIC FIELD↗
Analysis of polar cap absorption events. I - Effect of solar and solar induced conditions prior to the PCA events Final report
Solar phenomena analysis associated with polar cap absorption events from solar flare protons for prediction space radiation conditions
SOLAR FLARE↗
Analysis of polar cap absorption events. II - Time relation of major flares and rf emissions at centimeter wavelengths First quarterly report
Polar cap absorption analysis - time relation of major flares and radio frequency emissions at centimeter wavelengths
POLAR CAP ABSORPTION↗
The influence of geomagnetic activity on polar cap absorption.
Polar cap absorption riometer data compared for Thule, Greenland and College, Alaska for determining geomagnetic activity influence
POLAR CAP ABSORPTION↗
Polar cap absorption on VLF emissions.
Polar cap absorption effect on polar VLF EMISSIONS used for analysis of solar proton events
POLAR CAP ABSORPTION↗
Entry of solar cosmic rays into the polar cap atmosphere
Onset patterns of polar cap atmosphere due to enhanced ionization caused by penetrating solar cosmic ray particles
SOLAR COSMIC RAY↗
The polar cap absorption on July 7-10, 1966
Time history analysis for polar cap absorption of solar flare in July, 1966
POLAR CAP ABSORPTION↗
Entry of solar cosmic rays into the polar cap atmosphere.
Three stages of solar cosmic rays entry into polar cap atmosphere due to differential arrival of solar electrons, protons and alpha particles
SOLAR COSMIC RAY↗
The polar cap absorption on July 7-10, 1966.
Polar cap absorption on July 1966, discussing solar flare, radio outburst, proton intensity, geomagnetic latitude, etc
SOLAR RADIATION↗
Diurnal intensity variation of low-energy electrons observed near the polar cap.
Electron flux and energy spectrum measurements near polar cap investigated for diurnal intensity variations
ELECTRON FLUX↗
Construction of a High-Resolution DEM of an Arctic Ice Cap Using Shape-from-Shading
In this paper we investigated the possibility of using a shape-from-shading technique, applied to a Landsat MSS image, to create a high spatial resolution DEM of Austfonna, an ice cap in Svalbard.
DEM digital elevation models ice sheets altimetry ↗
Wideband Plasma Waves in the Polar Cap Boundary Layer: Polar Observations
Recent Polar plasma wave observations indicate that intense wideband waves are always present in the polar cap boundary layer (PCBL) region.
plasma wave data enhanced wideband waves polar cap↗
An onboard data analysis method to track the seasonal polar caps on Mars
In this paper, we evaluate our method on uncalibrated THEMIS data and find 1) agreement with manual cap edge identifications to within 28.2 km, and 2) high accuracy even with a reduced context window, yielding large reductions in memory requirements.
Mars polar caps↗
Variations in Surface Texture of the North Polar Residual Cap of Mars
The northern polar residual cap (NPRC) of Mars is a water ice deposit with a rough surface made up of pits, knobs, and linear depressions on scales of tens of meters. This roughness manifests as a series of bright mounds and dark hollows in visible images; these bright and dark patches have a characteristic wavelength and orientation. Spectral data indicate that the surface of the NPRC is composed of large-grained (and therefore old) water ice. Due to the presence of this old ice, it is thought that the NPRC is in a current state of net loss of material a result potentially at odds with impact crater statistics, which suggest ongoing deposition over the past 10-20 Kyr.
Mars↗
Spatial Variability in the Seasonal South Polar Cap of Mars
We present the first comprehensive discussion of the south seasonal polar cap spectra obtained by the Mariner7 Infrared Spectrometer in the short wavelength region (2-4 µm).
Mars↗
Plasma Waves in the Dayside Polar Cap Boundary Layer: Bipolar and Monopolar Electric Pulses and Whistler Mode Waves
We report four different types of plasma waves detected in the near the dayside polar cap boundary layer (PCBL) region at high altitudes (>6 R***sub E***).
plasma↗
Hemispheric Symmetry and Asymmetry of Poleward Moving Radar Auroral Forms (PMRAFs) and Associated Polar Cap Patches During a Geomagnetic Storm
Magnetopause reconnection is known to impact the dayside ionosphere by driving fast ionospheric flows, auroral transients, and high density plasma structures named polar cap patches. However, most of the observed reconnection impact is limited to one hemisphere, and a question arises as to how symmetric the impact is between hemispheres.
hemispheric symmetry/asymmetry↗