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Andrew J. Kopf, Ph.D. - Publications

Affiliations: 
2010 Physics University of Iowa, Iowa City, IA 
Area:
Fluid and Plasma Physics, Astronomy and Astrophysics
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25 high-probability publications. We are testing a new system for linking publications to authors. You can help! If you notice any inaccuracies, please sign in and mark papers as correct or incorrect matches. If you identify any major omissions or other inaccuracies in the publication list, please let us know.

Year Citation  Score
2020 Girazian Z, Luppen Z, Morgan DD, Chu F, Montabone L, Thiemann EMB, Gurnett DA, Halekas J, Kopf AJ, Němec F. Variations in the Ionospheric Peak Altitude at Mars in Response to Dust Storms: 13 Years of Observations From the Mars Express Radar Sounder Journal of Geophysical Research: Planets. 125. DOI: 10.1029/2019Je006092  0.551
2020 Duru F, Baker N, Boer MD, Chamberlain A, Verchimak R, Morgan DD, Chu F, Girazian Z, Gurnett DA, Halekas J, Kopf A. Martian Ionopause Boundary: Coincidence With Photoelectron Boundary and Response to Internal and External Drivers Journal of Geophysical Research. 125. DOI: 10.1029/2019Ja027409  0.407
2020 Sánchez–Cano B, Lester M, Witasse O, Morgan DD, Opgenoorth H, Andrews DJ, Blelly P, Cowley SWH, Kopf AJ, Leblanc F, Espley JR, Cardesín‐Moinelo A. Mars' Ionospheric Interaction With Comet C/2013 A1 Siding Spring's Coma at Their Closest Approach as Seen by Mars Express Journal of Geophysical Research. 125. DOI: 10.1029/2019Ja027344  0.425
2020 Barabash S, Voshchepynets A, Holmstrom M, Frahm RA, Nillsson H, Andrews D, Kopf A, Winningham JD. Observations of Sounder Accelerated Electrons by Mars Express Journal of Geophysical Research. 125. DOI: 10.1029/2019Ja027206  0.353
2019 Fallows K, Withers P, Morgan D, Kopf A. Extremely High Plasma Densities in the Mars Ionosphere Associated With Cusp‐Like Magnetic Fields Journal of Geophysical Research. 124: 6029-6046. DOI: 10.1029/2019Ja026690  0.371
2019 Girazian Z, Halekas J, Morgan DD, Kopf AJ, Gurnett DA, Chu F. The Effects of Solar Wind Dynamic Pressure on the Structure of the Topside Ionosphere of Mars Geophysical Research Letters. 46: 8652-8662. DOI: 10.1029/2019Gl083643  0.539
2019 Chu F, Girazian Z, Gurnett DA, Morgan DD, Halekas J, Kopf AJ, Thiemann EMB, Duru F. The Effects of Crustal Magnetic Fields and Solar EUV Flux on Ionopause Formation at Mars Geophysical Research Letters. 46: 10257-10266. DOI: 10.1029/2019Gl083499  0.571
2019 Němec F, Andrews DJ, Morgan DD, Kopf AJ, Gurnett DA. Oblique Reflections of Mars Express MARSIS Radar Signals From Ionospheric Density Structures: Raytracing Analysis Journal of Geophysical Research. 124: 1177-1187. DOI: 10.1029/2018Je005891  0.519
2019 Němec F, Morgan DD, Kopf AJ, Gurnett DA, Pitoňák D, Fowler CM, Andrews DJ, Andersson L. Characterizing Average Electron Densities in the Martian Dayside Upper Ionosphere Journal of Geophysical Research: Planets. 124: 76-93. DOI: 10.1029/2018Je005849  0.558
2019 Sánchez-Cano B, Blelly P, Lester M, Witasse O, Cartacci M, Orosei R, Opgenoorth H, Lillis R, Leblanc F, Milan SE, Conroy P, Floury N, Plane JMC, Cicchetti A, Noschese R, ... Kopf AJ, et al. Origin of the Extended Mars Radar Blackout of September 2017 Journal of Geophysical Research. 124: 4556-4568. DOI: 10.1029/2018Ja026403  0.418
2018 Voshchepynets A, Barabash S, Ramstad R, Holmstrom M, Andrews D, Nicolaou G, Frahm RA, Kopf A, Gurnett D. Ions Accelerated by Sounder‐Plasma Interaction as Observed by Mars Express Journal of Geophysical Research: Space Physics. 123: 9802-9814. DOI: 10.1029/2018Ja025889  0.441
2018 Andrews DJ, Opgenoorth HJ, Leyser TB, Buchert S, Edberg NJT, Morgan DD, Gurnett DA, Kopf AJ, Fallows K, Withers P. MARSIS Observations of Field-Aligned Irregularities and Ducted Radio Propagation in the Martian Ionosphere Journal of Geophysical Research: Space Physics. 123: 6251-6263. DOI: 10.1029/2018Ja025663  0.543
2018 Mendillo M, Narvaez C, Trovato J, Withers P, Mayyasi M, Morgan D, Kopf A, Gurnett D, Němec F, Campbell B. Mars Initial Reference Ionosphere (MIRI) Model: Updates and Validations Using MAVEN, MEX, and MRO Data Sets Journal of Geophysical Research: Space Physics. 123: 5674-5683. DOI: 10.1029/2018Ja025263  0.413
2018 Harada Y, Gurnett DA, Kopf AJ, Halekas JS, Ruhunusiri S, DiBraccio GA, Espley J, Brain DA. MARSIS Observations of the Martian Nightside Ionosphere During the September 2017 Solar Event Geophysical Research Letters. 45: 7960-7967. DOI: 10.1002/2018Gl077622  0.499
2018 Dieval CCG, Kopf A, Wild JA. Shapes of Magnetically Controlled Electron Density Structures in the Dayside Martian Ionosphere Journal of Geophysical Research. 123: 3919-3942. DOI: 10.1002/2017Ja025140  0.432
2018 Harada Y, Gurnett DA, Kopf AJ, Halekas JS, Ruhunusiri S. Ionospheric Irregularities at Mars Probed by MARSIS Topside Sounding Journal of Geophysical Research: Space Physics. 123: 1018-1030. DOI: 10.1002/2017Ja024913  0.461
2017 Němec F, Morgan DD, Fowler CM, Kopf AJ, Andersson L, Gurnett DA, Andrews DJ, Truhlik V. Ionospheric Electron Densities at Mars: Comparison of Mars Express Ionospheric Sounding and MAVEN Local Measurements Journal of Geophysical Research: Space Physics. 122: 12,393-12,405. DOI: 10.1002/2017Ja024629  0.532
2017 Harada Y, Gurnett DA, Kopf AJ, Halekas JS, Ruhunusiri S, Lee CO, Hara T, Espley J, DiBraccio GA, Mitchell DL, Mazelle C, Larson DE, Jakosky BM. Dynamic response of the Martian ionosphere to an interplanetary shock: Mars Express and MAVEN observations Geophysical Research Letters. 44: 9116-9123. DOI: 10.1002/2017Gl074897  0.568
2017 Kopf AJ, Gurnett DA, DiBraccio GA, Morgan DD, Halekas JS. The transient topside layer and associated current sheet in the ionosphere of Mars Journal of Geophysical Research: Space Physics. 122: 5579-5590. DOI: 10.1002/2016Ja023591  0.525
2015 Gurnett DA, Morgan DD, Persoon AM, Granroth LJ, Kopf AJ, Plaut JJ, Green JL. An ionized layer in the upper atmosphere of Mars caused by dust impacts from comet Siding Spring Geophysical Research Letters. DOI: 10.1002/2015Gl063726  0.543
2010 Gurnett DA, Persoon AM, Kopf AJ, Kurth WS, Morooka MW, Wahlund JE, Khurana KK, Dougherty MK, Mitchell DG, Krimigis SM, Krupp N. A plasmapause-like density boundary at high latitudes in Saturn's magnetosphere Geophysical Research Letters. 37. DOI: 10.1029/2010Gl044466  0.524
2010 Kopf AJ, Gurnett DA, Menietti JD, Schippers P, Arridge CS, Hospodarsky GB, Kurth WS, Grimald S, André N, Coates AJ, Dougherty MK. Electron beams as the source of whistler-mode auroral hiss at Saturn Geophysical Research Letters. 37. DOI: 10.1029/2010Gl042980  0.606
2009 Gurnett DA, Persoon AM, Groene JB, Kopf AJ, Hospodarsky GB, Kurth WS. A north-south difference in the rotation rate of auroral hiss at Saturn: Comparison to Saturn's kilometric radio emission Geophysical Research Letters. 36. DOI: 10.1029/2009Gl040774  0.614
2008 Kopf AJ, Gurnett DA, Morgan DD, Kirchner DL. Transient layers in the topside ionosphere of Mars Geophysical Research Letters. 35. DOI: 10.1029/2008Gl034948  0.499
2008 Gurnett DA, Huff RL, Morgan DD, Persoon AM, Averkamp TF, Kirchner DL, Duru F, Akalin F, Kopf AJ, Nielsen E, Safaeinili A, Plaut JJ, Picardi G. An overview of radar soundings of the martian ionosphere from the Mars Express spacecraft Advances in Space Research. 41: 1335-1346. DOI: 10.1016/J.Asr.2007.01.062  0.6
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