Daniel Baker

About

Daniel Baker has experience in the analysis of large data sets from spacecraft at geostationary orbit and has been involved in missions to the Earth's deep magnetotail and comets, in the study of solar wind-magnetospheric energy coupling, and theoretical modeling of the possible role of heavy ions in the development of magnetotail instabilities. He is presently working on the problem of magnetosphere-atmosphere coupling and is applying space plasma physics to the study of astrophysical systems. Daniel Baker has devoted much of his recent research effort to understanding magnetospheric substorms and to show how these disturbances contribute to anomalies in the operation of near-earth spacecraft and has developed nonlinear (chaos) models of substorm processes.

Research topics

• Computer Science
• Artificial Intelligence
• Nuclear physics
• Physics
• Computational physics
• Anesthesia
• Chemistry
• Simulation
• Medicine
• Mechanics

Selected publications

• Relativistic Electron Model in the Outer Radiation Belt Using a Neural Network Approach

  Space Weather · 2021 · 74 citations

  Abstract We present a machine‐learning‐based model of relativistic electron fluxes >1.8 MeV using a neural network approach in the Earth's outer radiation belt. The Outer RadIation belt Electron Neural net model for Relativistic electrons (ORIENT‐R) uses only solar wind conditions and geomagnetic indices as input. For the first time, we show that the state of the outer radiation belt can be determined using only solar wind conditions and geomagnetic indices, without any initial and boundary c…

  DOI

• Rapid Outer Radiation Belt Flux Dropouts and Fast Acceleration During the March 2015 and 2013 Storms: The Role of Ultra‐Low Frequency Wave Transport From a Dynamic Outer Boundary

  Journal of Geophysical Research Space Physics · 2020 · 61 citations

  Abstract We present simulations of the outer radiation belt electron flux during the March 2015 and 2013 storms using a radial diffusion model. Despite differences in disturbance short‐time intensity between the two storms, the response of the ultra‐relativistic electrons in the outer radiation belt was remarkably similar, both showing a sudden drop in the electron flux followed by a rapid enhancement in the outer belt flux to levels over an order of magnitude higher than those observed during t…

  DOI

• Interstellar Mapping And Acceleration Probe: The NASA IMAP Mission

  Space Science Reviews · 2025-10-30 · 25 citations

  articleOpen access

  NASA's Interstellar Mapping and Acceleration Probe (IMAP) mission provides extensive and well-coordinated new observations of the inner and outer heliosphere and scientific closure on two of the most important topics in Heliophysics: 1) the acceleration of charged particles and 2) the interaction of the solar wind with the local interstellar medium. These topics are intimately coupled because particles accelerated in the inner heliosphere propagate outward through the solar wind and mediate its…

  PublisherOA PDFDOI

• A New Electron and Proton Radiation Belt Identified by CIRBE/REPTile‐2 Measurements After the Magnetic Super Storm of 10 May 2024

  Journal of Geophysical Research Space Physics · 2025-02-01 · 18 citations

  articleOpen access

  Abstract Following the largest magnetic storm in 20 years (10 May 2024), REPTile‐2 on NASA's CIRBE satellite identified two new radiation belts containing 1.3–5 MeV electrons around L = 2.5–3.5 and 6.8–20 MeV protons around L = 2. The region around L = 2.5–3.5 is usually devoid of relativistic electrons due to wave‐particle interactions that scatter them into the atmosphere. However, these 1.3–5 MeV electrons in this new belt seemed unaffected until a magnetic storm on 28 June 2024, perturbed th…

  PublisherOA PDFDOI

• Global-Scale Processes and Effects of Magnetic Reconnection on the Geospace Environment

  Space Science Reviews · 2024-04-19 · 16 citations

  articleOpen access

  Abstract Recent multi-point measurements, in particular from the Magnetospheric Multiscale (MMS) spacecraft, have advanced the understanding of micro-scale aspects of magnetic reconnection. In addition, the MMS mission, as part of the Heliospheric System Observatory, combined with recent advances in global magnetospheric modeling, have furthered the understanding of meso- and global-scale structure and consequences of reconnection. Magnetic reconnection at the dayside magnetopause and in the mag…

  PublisherOA PDFDOI

Recent grants

• REU Site: Solar and Space Physics with the Boulder Solar Alliance

  NSF · $550k · 2017–2021

• Electronic Geophysical Year (eGY) Initiative

  NSF · $270k · 2006–2009

Frequent coauthors

• G. D. Reeves

  Los Alamos National Laboratory

  384 shared

• J. B. Blake

  The Aerospace Corporation

  344 shared

• H. E. Spence

  University of New Hampshire

  335 shared

• S. G. Kanekal

  297 shared

• Xinlin Li

  University of Colorado Boulder

  266 shared

• A. N. Jaynes

  University of Iowa

  236 shared

• Sean C. Solomon

  218 shared

• S. G. Claudepierre

  University of California, Los Angeles

  193 shared

Similar researchers at University of Colorado Boulder

• Andrew Hamiltonh-122
• Nils Halversonh-80
• Steven Cranmerh-55