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Alexa J Halford - Publications

Affiliations: 
NASA/GSFC 
Area:
Heliophysics, Space Weather, Ionosphere, Magnetosphere
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31 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
2022 Manweiler JW, Breneman A, Niehof J, Larsen B, Romeo G, Stephens G, Halford A, Kletzing C, Brown LE, Spence H, Reeves G, Friedel R, Smith S, Skoug R, Blake B, et al. Science of the Van Allen Probes Science Operations Centers. Space Science Reviews. 218: 66. PMID 36407497 DOI: 10.1007/s11214-022-00919-x  0.625
2020 Shumko M, Johnson AT, O'Brien TP, Turner DL, Greeley AD, Sample JG, Blake JB, Blum LW, Halford AJ. Statistical Properties of Electron Curtain Precipitation Estimated With AeroCube-6. Journal of Geophysical Research. Space Physics. 125: e2020JA028462. PMID 33520562 DOI: 10.1029/2020JA028462  0.503
2020 Cid C, Guerrero A, Saiz E, Halford AJ, Kellerman AC. Developing the LDi and LCi Geomagnetic Indices, an Example of Application of the AULs Framework Social Work. 18: 2171. DOI: 10.1029/2019Sw002171  0.349
2020 Remya B, Sibeck DG, Ruohoniemi JM, Kunduri B, Halford AJ, Reeves GD, Reddy RV. Association Between EMIC Wave Occurrence and Enhanced Convection Periods During Ion Injections Geophysical Research Letters. 47. DOI: 10.1029/2019Gl085676  0.439
2020 Klenzing J, Davidson R, Jones S, Martinis C, Zawdie K, Earle G, Smith J, Halford A, Noel S, Paschalidis N, Pfaff R, Robertson E. The petitSat mission – Science goals and instrumentation Advances in Space Research. 66: 107-115. DOI: 10.1016/J.Asr.2019.12.013  0.456
2019 Angelopoulos V, Cruce P, Drozdov A, Grimes EW, Hatzigeorgiu N, King DA, Larson D, Lewis JW, McTiernan JM, Roberts DA, Russell CL, Hori T, Kasahara Y, Kumamoto A, Matsuoka A, ... ... Halford AJ, et al. The Space Physics Environment Data Analysis System (SPEDAS). Space Science Reviews. 215: 9. PMID 30880847 DOI: 10.1007/S11214-018-0576-4  0.722
2019 Medeiros C, Souza VM, Vieira LEA, Sibeck DG, Halford AJ, Kang S, Silva LAD, Alves LR, Marchezi JP, Dallaqua RS, Jauer PR, Rockenbach M, Mendes O, Alves MV, Lago AD, et al. On the Contribution of EMIC Waves to the Reconfiguration of the Relativistic Electron Butterfly Pitch Angle Distribution Shape on 2014 September 12—A Case Study The Astrophysical Journal. 872: 36. DOI: 10.3847/1538-4357/Aaf970  0.604
2019 Halford AJ, Kellerman AC, Garcia-Sage K, Klenzing J, Carter BA, McGranaghan RM, Guild T, Cid C, Henney CJ, Ganushkina NY, Burrell AG, Terkildsen M, Welling DT, Murray SA, Leka KD, et al. Application usability levels: a framework for tracking project product progress Journal of Space Weather and Space Climate. 9: A34. DOI: 10.1051/Swsc/2019030  0.731
2019 Lessard MR, Paulson K, Spence HE, Weaver C, Engebretson MJ, Millan R, Woodger L, Halford A, Horne R, Rodger CJ, Hendry A. Generation of EMIC Waves and Effects on Particle Precipitation During a Solar Wind Pressure Intensification With B z >0 Journal of Geophysical Research: Space Physics. 124: 4492-4508. DOI: 10.1029/2019Ja026477  0.721
2019 Bingley L, Angelopoulos V, Sibeck D, Zhang X, Halford A. The Evolution of a Pitch‐Angle “Bite‐Out” Scattering Signature Caused by EMIC Wave Activity: A Case Study Journal of Geophysical Research. 124: 5042-5055. DOI: 10.1029/2018Ja026292  0.419
2019 Rudd JT, Oliveira DM, Bhaskar A, Halford AJ. How do interplanetary shock impact angles control the size of the geoeffective magnetosphere Advances in Space Research. 63: 317-326. DOI: 10.1016/J.Asr.2018.09.013  0.417
2018 Burrell AG, Halford A, Klenzing J, Stoneback RA, Morley SK, Annex AM, Laundal KM, Kellerman AC, Stansby D, Ma J. Snakes on a Spaceship—An Overview of Python in Heliophysics Journal of Geophysical Research. 123. DOI: 10.1029/2018Ja025877  0.366
2018 Remya B, Sibeck DG, Halford AJ, Murphy KR, Reeves GD, Singer HJ, Wygant JR, Perez GF, Thaller SA. Ion Injection Triggered EMIC Waves in the Earth's Magnetosphere Journal of Geophysical Research. 123: 4921-4938. DOI: 10.1029/2018Ja025354  0.438
2018 Chaston CC, Bonnell JW, Halford AJ, Reeves GD, Baker DN, Kletzing CA, Wygant JR. Pitch Angle Scattering and Loss of Radiation Belt Electrons in Broadband Electromagnetic Waves Geophysical Research Letters. 45: 9344-9352. DOI: 10.1029/2018Gl079527  0.631
2018 Rae IJ, Murphy KR, Watt CEJ, Halford AJ, Mann IR, Ozeke LG, Sibeck DG, Clilverd MA, Rodger CJ, Degeling AW, Forsyth C, Singer HJ. The Role of Localized Compressional Ultra‐low Frequency Waves in Energetic Electron Precipitation Journal of Geophysical Research. 123: 1900-1914. DOI: 10.1002/2017Ja024674  0.52
2017 Cassak PA, Emslie AG, Halford AJ, Baker DN, Spence HE, Avery SK, Fisk LA. Space physics and policy for contemporary society Journal of Geophysical Research: Space Physics. 122: 4430-4435. DOI: 10.1002/2017Ja024219  0.503
2017 Clilverd MA, Rodger CJ, McCarthy M, Millan R, Blum LW, Cobbett N, Brundell JB, Danskin D, Halford AJ. Investigating energetic electron precipitation through combining ground‐based and balloon observations Journal of Geophysical Research: Space Physics. 122: 534-546. DOI: 10.1002/2016Ja022812  0.772
2016 Zhang J, Halford AJ, Saikin AA, Huang C, Spence HE, Larsen BA, Reeves GD, Millan RM, Smith CW, Torbert RB, Kurth WS, Kletzing CA, Blake JB, Fennel JF, Baker DN. EMIC waves and associated relativistic electron precipitation on 25-26 January 2013 Journal of Geophysical Research: Space Physics. 121: 11,086-11,100. DOI: 10.1002/2016Ja022918  0.771
2016 Halford AJ, Fraser BJ, Morley SK, Elkington SR, Chan AA. Dependence of EMIC wave parameters during quiet, geomagnetic storm, and geomagnetic storm phase times Journal of Geophysical Research a: Space Physics. DOI: 10.1002/2016Ja022694  0.489
2016 Halford AJ, Mcgregor SL, Hudson MK, Millan RM, Kress BT. BARREL observations of a solar energetic electron and solar energetic proton event Journal of Geophysical Research a: Space Physics. DOI: 10.1002/2016Ja022462  0.744
2015 Woodger LA, Halford AJ, Millan RM, McCarthy MP, Smith DM, Bowers GS, Sample JG, Anderson BR, Liang X. A summary of the BARREL campaigns: Technique for studying electron precipitation. Journal of Geophysical Research. Space Physics. 120: 4922-4935. PMID 26937330 DOI: 10.1002/2014Ja020874  0.76
2015 Breneman AW, Halford A, Millan R, McCarthy M, Fennell J, Sample J, Woodger L, Hospodarsky G, Wygant JR, Cattell CA, Goldstein J, Malaspina D, Kletzing CA. Global-scale coherence modulation of radiation-belt electron loss from plasmaspheric hiss. Nature. PMID 26123022 DOI: 10.1038/Nature14515  0.781
2015 Blum LW, Halford A, Millan R, Bonnell JW, Goldstein J, Usanova M, Engebretson M, Ohnsted M, Reeves G, Singer H, Clilverd M, Li X. Observations of coincident EMIC wave activity and duskside energetic electron precipitation on 18-19 January 2013 Geophysical Research Letters. DOI: 10.1002/2015Gl065245  0.806
2015 Carter BA, Yizengaw E, Pradipta R, Halford AJ, Norman R, Zhang K. Interplanetary shocks and the resulting geomagnetically induced currents at the equator Geophysical Research Letters. 42: 6554-6559. DOI: 10.1002/2015Gl065060  0.428
2015 Halford AJ, McGregor SL, Murphy KR, Millan RM, Hudson MK, Woodger LA, Cattel CA, Breneman AW, Mann IR, Kurth WS, Hospodarsky GB, Gkioulidou M, Fennell JF. BARREL observations of an ICME-shock impact with the magnetosphere and the resultant radiation belt electron loss Journal of Geophysical Research a: Space Physics. 120: 2557-2570. DOI: 10.1002/2014Ja020873  0.799
2015 Brito T, Hudson MK, Kress B, Paral J, Halford A, Millan R, Usanova M. Simulation of ULF wave-modulated radiation belt electron precipitation during the 17 March 2013 storm Journal of Geophysical Research a: Space Physics. 120: 3444-3461. DOI: 10.1002/2014Ja020838  0.774
2015 Halford AJ, Fraser BJ, Morley SK. EMIC waves and plasmaspheric and plume density: CRRES results Journal of Geophysical Research a: Space Physics. 120: 1974-1992. DOI: 10.1002/2014Ja020338  0.505
2014 Millan RM, McCarthy MP, Sample JG, Smith DM, Thompson LD, McGaw DG, Woodger LA, Hewitt JG, Comess MD, Yando KB, Liang AX, Anderson BA, Knezek NR, Rexroad WZ, Scheiman JM, ... ... Halford AJ, et al. The balloon array for RBSP relativistic electron losses (BARREL) The Van Allen Probes Mission. 503-530. DOI: 10.1007/S11214-013-9971-Z  0.784
2013 Blum LW, Schiller Q, Li X, Millan R, Halford A, Woodger L. New conjunctive CubeSat and balloon measurements to quantify rapid energetic electron precipitation Geophysical Research Letters. 40: 5833-5837. DOI: 10.1002/2013Gl058546  0.772
2010 Halford AJ, Fraser BJ, Morley SK. EMIC wave activity during geomagnetic storm and nonstorm periods: CRRES results Journal of Geophysical Research: Space Physics. 115. DOI: 10.1029/2010Ja015716  0.474
2004 Engebretson MJ, Posch JL, Halford AJ, Shelburne GA, Smith AJ, Spasojević M, Inan US, Arnoldy RL. Latitudinal and seasonal variations of quasiperiodic and periodic VLF emissions in the outer magnetosphere Journal of Geophysical Research: Space Physics. 109. DOI: 10.1029/2003Ja010335  0.59
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