19982019
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Research Output 1998 2019

  • 18 Article
  • 5 Conference contribution
  • 1 Comment/debate
  • 1 Editorial
2019

Efficient rfi detection in radio astronomy based on compressive statistical sensing

Cucho-Padin, G., Wang, Y., Waldrop, L., Tian, Z. & Kamalabadi, F., Feb 20 2019, 2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., p. 1109-1113 5 p. 8646517. (2018 IEEE Global Conference on Signal and Information Processing, GlobalSIP 2018 - Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Radio astronomy
Observatories
Spectrum analysis
Frequency bands

Radio Frequency Interference Detection and Mitigation Using Compressive Statistical Sensing

Cucho-Padin, G., Wang, Y., Li, E., Waldrop, L., Tian, Z., Kamalabadi, F. & Perillat, P., Jan 1 2019, (Accepted/In press) In : Radio Science.

Research output: Contribution to journalArticle

radio frequency interference
Radio interference
mitigation
radio
Radio astronomy

Time-Dependent Response of the Terrestrial Exosphere to a Geomagnetic Storm

Cucho-Padin, G. & Waldrop, L., Jan 1 2019, (Accepted/In press) In : Geophysical Research Letters.

Research output: Contribution to journalArticle

exosphere
geomagnetic storm
magnetic storms
current ring
reaction rate
2018

Evidence for Radiative Recombination of O + Ions as a Significant Source of O 844.6 nm Emission Excitation

Waldrop, L., Kerr, R. B. & Huang, Y., Apr 2018, In : Journal of Geophysical Research: Space Physics. 123, 4, p. 3078-3086 9 p.

Research output: Contribution to journalArticle

radiative recombination
Photoelectrons
recombination
Ions
ions

Ionospheric O + Momentum Balance Through Charge Exchange With Thermospheric O Atoms

Joshi, P. P., Waldrop, L. & Brum, C. G. M., Nov 2018, In : Journal of Geophysical Research: Space Physics. 123, 11, p. 9743-9761 19 p.

Research output: Contribution to journalArticle

momentum
charge exchange
ionospherics
Ion exchange
Momentum
planetary atmosphere
planetary atmospheres
orbits
Orbits
inversions

Tomographic Estimation of Exospheric Hydrogen Density Distributions

Cucho-Padin, G. & Waldrop, L., Jun 2018, In : Journal of Geophysical Research: Space Physics. 123, 6, p. 5119-5139 21 p.

Research output: Contribution to journalArticle

neutral atoms
spectrometers
hydrogen
exosphere
density distribution

Transformed Spiked Covariance Completion for Time Series Estimation

Eng, B., Zhao, Z., Kamalabadi, F. & Waldrop, L., Sep 10 2018, 2018 IEEE International Conference on Acoustics, Speech, and Signal Processing, ICASSP 2018 - Proceedings. Institute of Electrical and Electronics Engineers Inc., Vol. 2018-April. p. 4484-4488 5 p. 8461555

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Time series
Dynamical systems
2017

Redistribution of H atoms in the upper atmosphere during geomagnetic storms

Qin, J., Waldrop, L. & Makela, J. J., Oct 2017, In : Journal of Geophysical Research: Space Physics. 122, 10, p. 10,686-10,693

Research output: Contribution to journalArticle

Upper atmosphere
geomagnetic storm
thermosphere
upper atmosphere
magnetic storms
2016

Non-thermal hydrogen atoms in the terrestrial upper thermosphere

Qin, J. & Waldrop, L., Dec 6 2016, In : Nature communications. 7, 13655.

Research output: Contribution to journalArticle

thermosphere
Hydrogen
hydrogen atoms
Atoms
hydrogen

Tomographic reconstruction of atmospheric density with Mumford-Shah functionals

Ren, D., Waldrop, L. & Kamalabadi, F., May 18 2016, 2016 IEEE International Conference on Acoustics, Speech and Signal Processing, ICASSP 2016 - Proceedings. Institute of Electrical and Electronics Engineers Inc., p. 1417-1421 5 p. 7471910. (ICASSP, IEEE International Conference on Acoustics, Speech and Signal Processing - Proceedings; vol. 2016-May).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Atmospheric density
Atmospheric structure
Earth atmosphere
Solar radiation
Remote sensing
2015

Three-dimensional convective flows of energetic ions in Jupiter's equatorial magnetosphere

Waldrop, L. S., Roelof, E. C. & Fritz, T. A., Dec 1 2015, In : Journal of Geophysical Research A: Space Physics. 120, 12, p. 10506-10527 22 p.

Research output: Contribution to journalArticle

Magnetosphere
convective flow
Jupiter (planet)
magnetospheres
Jupiter
2013

Lyman α airglow emission: Implications for atomic hydrogen geocorona variability with solar cycle

Waldrop, L. & Paxton, L. J., Sep 2013, In : Journal of Geophysical Research: Space Physics. 118, 9, p. 5874-5890 17 p.

Research output: Contribution to journalArticle

airglow
solar cycles
solar cycle
hydrogen
Hydrogen
2011

Response of the topside ionosphere over Arecibo to a moderate geomagnetic storm

Garzón, D. P., Brum, C. G. M., Echer, E., Aponte, N., Sulzer, M. P., González, S. A., Kerr, R. B. & Waldrop, L., Jul 1 2011, In : Journal of Atmospheric and Solar-Terrestrial Physics. 73, 11-12, p. 1568-1574 7 p.

Research output: Contribution to journalArticle

geomagnetic storm
magnetic storms
ionospheres
ionosphere
incoherent scatter radar
2009

8446-Angstrom observations of neutral oxygen with the spatial heterodyne spectrometer at millstone hill

Watchorn, S., Noto, J. & Waldrop, L., Nov 20 2009, Solar Physics and Space Weather Instrumentation III. 74380D. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 7438).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Heterodyne
Spectrometer
Spectrometers
Oxygen
Fluorescence
2008

Photoelectron impact excitation of OI 8446 Å emission observed from Arecibo Observatory

Waldrop, L. S., Kerr, R. & Richards, P., Jan 1 2008, In : Journal of Geophysical Research: Space Physics. 113, 1, A01303.

Research output: Contribution to journalArticle

Observatories
Photoelectrons
twilight
observatories
photoelectrons
2007

First light for the Bowen fluorescence spatial heterodyne spectrometer at Millstone Hill Observatory

Watchorn, S., Noto, J., Waldrop, L. & Migliozzi, M. A., Dec 1 2007, Solar Physics and Space Weather Instrumentation II. 668913. (Proceedings of SPIE - The International Society for Optical Engineering; vol. 6689).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Heterodyne
Observatories
Observatory
Spectrometer
Fluorescence
2006

Derivation of neutral oxygen density under charge exchange in the midlatitude topside ionosphere

Waldrop, L. S., Kudeki, E., González, S. A., Sulzer, M. P., Garcia, R., Butala, M. & Kamalabadi, F., Nov 1 2006, In : Journal of Geophysical Research: Space Physics. 111, 11, A11308.

Research output: Contribution to journalArticle

Ionosphere
temperate regions
charge exchange
ionospheres
Protons

Erratum: Ion abundance ratios in the Jovian magnetosphere (Journal of Geophysical Research A: Space Physics 110 (A07225) DOI:10.1029/2004JA010775)

Radioti, A., Krupp, N., Woch, J., Lagg, A., Glassmeier, K. H. & Waldrop, L. S., Oct 1 2006, In : Journal of Geophysical Research: Space Physics. 111, 10, A10224.

Research output: Contribution to journalComment/debate

Magnetosphere
physics
Physics
Ions
ions
2005

Generation of metastable helium and the 1083 nm emission in the upper thermosphere

Waldrop, L. S., Kerr, R. B., González, S. A., Sulzer, M. P., Noto, J. & Kamalabadi, F., Aug 2005, In : Journal of Geophysical Research: Space Physics. 110, A8, A08304.

Research output: Contribution to journalArticle

Helium
helium
thermosphere
Photoelectrons
winter

Ion abundance ratios in the Jovian magnetosphere

Radioti, A., Krupp, N., Woch, J., Lagg, A., Glassmeier, K. H. & Waldrop, L. S., Jul 2005, In : Journal of Geophysical Research: Space Physics. 110, A7, A07225.

Research output: Contribution to journalArticle

Magnetosphere
magnetospheres
Helium
magnetosphere
helium

Jovian plasma sheet morphology: Particle and field observations by the Galileo spacecraft

Waldrop, L., Fritz, T. A., Kivelson, M. G., Khurana, K., Krupp, N. & Lagg, A., May 1 2005, In : Planetary and Space Science. 53, 6, p. 681-692 12 p.

Research output: Contribution to journalArticle

Galileo spacecraft
plasma
encounters
periodicity
periodic variations
2001

Kira is energy consuming

Fried, I. & Waldrop, L. S., Jun 28 2001, In : Journal of Sound and Vibration. 244, 1, p. 169-172 4 p.

Research output: Contribution to journalEditorial

Astronomy
astronomy
computerized simulation
Computer simulation
energy
2000

Brightness measurements of the nighttime O I 8446 Å airglow emission from the Millstone Hill and Arecibo Observatories

Lancaster, R. S., Waldrop, L. S., Kerr, R. B., Noto, J., Solomon, S. C., Tepley, C. A., Garcia, R. & Friedman, J., Mar 1 2000, In : Journal of Geophysical Research: Space Physics. 105, A3, p. 5275-5290 16 p., 1999JA900410.

Research output: Contribution to journalArticle

airglow
Observatories
Luminance
observatories
brightness
1998

Evidence for recombination as a significant source of metastable helium

Noto, J., Kerr, R. B., Shea, E. M., Waldrop, L. S., Fisher, G., Rudy, R. J., Hecht, J. H., Gonzalez, S. A., Sulzer, M. P. & Garcia, R., Jan 1 1998, In : Journal of Geophysical Research: Space Physics. 103, A6, p. 11595-11603 9 p., 97JA03062.

Research output: Contribution to journalArticle

Helium
helium
recombination
thermosphere
Luminance