Cooperative Institute for Research in Environmental Sciences at the University of Colorado Boulder

Samuel Califf

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  • Vines S; Anderson B; Waters CL; Allen RC; Maute A; Kunduri B; Paxton L; Strangeway RJ; Lin D; Robinson R. (Jul 2023). Beyond AMPERE-NEXT: Envisioning the Next System of Global High-Latitude Electrodynamics. 10.3847/25c2cfeb.76348bf9
  • Mei Y; Li X; Zhao H; Sarris T; Khoo L; Hogan B; O’Brien D; Califf S. (May 2023). On the Energy‐Dependent Deep (; L;  < 3.5) Penetration of Radiation Belt Electrons. Geophysical Research Letters , 50(10). 10.1029/2022gl101921
  • Zhao H; Califf ST; Goyal R; Li X; Gkioulidou M; Manweiler JW; Krantz S. (Apr 2023). Statistical Analysis of the Differential Deep Penetration of Energetic Electrons and Protons into the Low L Region (L < 4). Journal of Geophysical Research: Space Physics , 128(4). 10.1029/2022JA031125
  • Califf S; Alken P; Chulliat A; Anderson B; Rock K; Vines S; Barnes R; Liou K. (Feb 2022). Investigation of geomagnetic reference models based on the Iridium (R) constellation. Earth, Planets and Space , 74(1). 10.1186/s40623-022-01574-w
  • Califf S; Zhao H; Gkioulidou M; Manweiler JW; Mitchell DG; Tian S. (Feb 2022). Multi-Event Study on the Connection Between Subauroral Polarization Streams and Deep Energetic Particle Injections in the Inner Magnetosphere. Journal of Geophysical Research: Space Physics , 127(2). 10.1029/2021JA029895
  • Alken P; Thebault E; Beggan CD; Amit H; Aubert J; Baerenzung J; Bondar TN; Brown WJ; Califf S; Chambodut A. (Feb 2021). International Geomagnetic Reference Field: the thirteenth generation. Earth, Planets and Space , 73(1). 10.1186/s40623-020-01288-x
  • Alken P; Thebault E; Beggan CD; Aubert J; Baerenzung J; Brown WJ; Califf S; Chulliat A; Cox GA; Finlay CC. (Feb 2021). Evaluation of candidate models for the 13th generation International Geomagnetic Reference Field. Earth, Planets and Space , 73(1). 10.1186/s40623-020-01281-4
  • Ohtani S; Motoba T; Takahashi K; Califf S. (Sep 2020). Generalized Substorm Current Wedge Model: Two Types of Dipolarizations in the Inner Magnetosphere. Journal of Geophysical Research: Space Physics , 125(9). 10.1029/2020JA027890
  • Califf S; Loto'aniu TM; Early D; Grotenhuis M. (Jan 2020). Arcjet Thruster Influence on Local Magnetic Field Measurements from a Geostationary Satellite. Journal of Spacecraft and Rockets , 57(1), 177-186. 10.2514/1.A34546
  • Califf S; Early D; Grotenhuis M; Loto'aniu TM; Kronenwetter J. (Jan 2020). Correcting the Arcjet Thruster Disturbance in GOES-16 Magnetometer Data. Space Weather , 18(1). 10.1029/2019SW002347
  • Lotoaniu, TM; Redmon, RJ; Califf, S; Singer, HJ; Rowland, W; Macintyre, S; Chastain, C; Dence, R; Bailey, R; Shoemaker, E; Rich, FJ; Chu, D; Early, D; Kronenwetter, J; Todirita, M. (Jun 2019). The GOES-16 Spacecraft Science Magnetometer. SPACE SCIENCE REVIEWS , 215(4). 10.1007/s11214-019-0600-3
  • Zhao, H, DN Baker, S Califf, X Li, AN Jaynes, T Leonard, SG Kanekal, JB Blake, JF Fennell, SG Claudepierre, DL Turner, GD Reeves and HE Spence. (Dec 2017). Van Allen Probes Measurements of Energetic Particle Deep Penetration Into the Low L Region (L < 4) During the Storm on 8 April 2016. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , 122(12). 10.1002/2017JA024558
  • Sarris, TE, XL Li, M Temerin, H Zhao, S Califf, WL Liu and R Ergun. (Sep 2017). On the relationship between electron flux oscillations and ULF wave-driven radial transport. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , 122(9). 10.1002/2016JA023741
  • Califf, S, X Li, H Zhao, A Kellerman, TE Sarris, A Jaynes and DM Malaspina. (Feb 2017). The role of the convection electric field in filling the slot region between the inner and outer radiation belts. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS , 122(2). 10.1002/2016JA023657
  • Kanekal SG; Baker DN; Fennell JF; Jones A; Schiller Q; Richardson IG; Li X; Turner DL; Califf S; Claudepierre SG. (Aug 2016). Prompt acceleration of magnetospheric electrons to ultrarelativistic energies by the 17 March 2015 interplanetary shock. Journal of Geophysical Research: Space Physics , 121(8), 7622-7635. 10.1002/2016JA022596
  • Califf S; Cully CM. (Jul 2016). Empirical estimates and theoretical predictions of the shorting factor for the THEMIS double-probe electric field instrument. Journal of Geophysical Research: Space Physics , 121(7), 6223-6233. 10.1002/2016JA022589
  • Califf S; Li X; Wolf RA; Zhao H; Jaynes AN; Wilder FD; Malaspina DM; Redmon R. (Jun 2016). Large-amplitude electric fields in the inner magnetosphere: Van Allen Probes observations of subauroral polarization streams. Journal of Geophysical Research: Space Physics , 121(6), 5294-5306. 10.1002/2015JA022252
  • Califf S; Li X; Blum L; Jaynes A; Schiller Q; Zhao H; Malaspina D; Hartinger M; Wolf RA; Rowland DE. (Dec 2014). THEMIS measurements of quasi-static electric fields in the inner magnetosphere. Journal of Geophysical Research: Space Physics , 119(12). 10.1002/2014JA020360
  • Li X; Schiller Q; Blum L; Califf S; Zhao H; Tu W; Turner DL; Gerhardt D; Palo S; Kanekal S. (Oct 2013). First results from CSSWE CubeSat: Characteristics of relativistic electrons in the near-Earth environment during the October 2012 magnetic storms. Journal of Geophysical Research: Space Physics , 118(10), 6489-6499. 10.1002/2013JA019342
  • Li X; Palo S; Kohnert R; Blum L; Gerhardt D; Schiller Q; Califf S. (Feb 2013). Small Mission Accomplished by Students-Big Impact on Space Weather Research. Space Weather , 11(2), 55-56. 10.1002/swe.20025