Solar and Space Physics - PowerPoint PPT Presentation


PPT – Solar and Space Physics PowerPoint presentation | free to download - id: e27e8-ZDc1Z


The Adobe Flash plugin is needed to view this content

Get the plugin now

View by Category
About This Presentation

Solar and Space Physics


... physics research has broad importance to solar system exploration, astrophysics, and fundamental ... understanding of the physics of the terrestrial upper ... – PowerPoint PPT presentation

Number of Views:74
Avg rating:3.0/5.0
Slides: 28
Provided by: jimb161
Learn more at:
Tags: physics | solar | space


Write a Comment
User Comments (0)
Transcript and Presenter's Notes

Title: Solar and Space Physics

Solar and Space Physics
and Its Role in Space Exploration NRC-SSB-CSSP
NAS-NRC Space Studies Board Committee on Solar
and Space Physics Study Requested by NASA-OSS,
OSTP, OMB Ad hoc study committee F. Bagenal
(Chair), C. Alexander, J. Burch, A. Chan, J.
Drake, J. Foster, S. Fuselier, S. Gibson, R.
Heelis, C. Kletzing, L. Lanzerotti, G. Lu, B.
Mauk, T. Onsager, E.Parker Members from CSSP plus
SSP Decadal Survey
  • The 2003 NRC decadal study for solar and space
    physics, "The Sun to the Earth--and Beyond,"
    recommended a robust research program for NASA
    and NSF that would also address the operational
    needs of NOAA and DOD.
  • The report includes a recommended suite of
    programs at NASA, which were ordered by priority,
    presented in an appropriate sequence, and
    selected to fit within an expected resource
    profile during the next decade.
  • In early 2004 NASA proposed to adopt major new
    goals for human and robotic exploration of the
    solar system.

Study Tasks
  • Analyze the missions and programs that were
    recommended by NRCs first decadal strategy for
    solar and space physics (The Sun to the
    Earth--and Beyond) and assess their relevance to
    the space exploration initiative and
  • 2. Recommend the most effective strategy for
    accomplishing the recommendations of the decadal
    strategy within realistic resource projections
    and time scales.

Two Exploration Documents
  • NASA - The Vision for Space Exploration -
    February 2004
  • Limited discussion of science
  • -gt focus on application
  • Aldridge Report - A Journey to Inspire, Innovate,
    and Discover
  • - June 2004
  • - Greater emphasis on science

Aldridge Report - A Journey to Inspire, Innovate,
and Discover
Finding 7 The Commission finds implementing the
space exploration vision will be enabled by
scientific knowledge, and will enable compelling
scientific opportunities to study Earth and its
environs, the solar system, other planetary
systems and the universe. Page 38 - A Notional
Science Research Agenda - many ways for SEC to
NASA Roadmap Version
  • Roadmap 3 - Conduct a sustained program of solar
    system exploration for scientific purposes and to
    support human exploration.
  • Roadmap 10 - Explore the Sun-Earth system to
    enable a full understanding of how the changing
    Sun affects Earth, its environments, and its
    atmospheric dynamics and chemistry, as well as
    how it affects the interplanetary medium, the
    Moon and Mars and the implications for human
    exploration of the solar system.

Guiding Principles
  • Successful Exploration requires predicting the
    Space Weather of the Heliosphere
  • Sun, heliosphere, Earth/planets form a system -
    need to study whole, coupled system
  • Universal processes couple the system - E.g.,
    reconnection, particle acceleration, shocks,

(No Transcript)
(No Transcript)
(No Transcript)
Study Approaches
  • LWS STP Lines of Comparable Value
  • - for science
  • - for developing long-term space weather
    prediction capability
  • Hard to separate - missions in both lines have
    both basic and applied aspects

Study Approaches
Success of LWS STP missions is predicated on
strong FOUNDATIONS supporting them
Research Analysis
Foundations of SEC
  • Research Analysis
  • Research/development of underlying concepts -
    basis of future missions
  • Maximizing benefits of current/past missions
  • Training/education of future workforce
  • Explorers
  • Phase B/C/D Development
  • Two Wide-angle Imaging Neutral-atom Spectrometers
    (TWINS) mission of opportunity
  • Coupled Ion-Neutral Dynamics Investigation
    (CINDI) mission of opportunity
  • Time History of Events and Macroscale
    Interactions during Substorms (Themis) 2007
  • Exploring Clouds at the Edge of Space (AIM)
  • Phase A Competition
  • Jupiter Magnetosphere Explorer ( JMEX)
  • Interstellar Boundary Explorer (IBEX)
  • The Normal-incidence Extreme Ultraviolet
    Spectrometer (NEXUS)
  • Future Posibilities
  • Auroral Cluster Explorer (ACE-X)
  • Solar Imaging Radio Array (SIRA)
  • Interstellar Medium Explorer (ISMEX)
  • Ionospheric Electrodynamics Explorer (IEX)

Findings (1/2)
Finding 1. The field of solar and space physics
is a vibrant area of scientific research. Solar
and space physics research has broad importance
to solar system exploration, astrophysics, and
fundamental plasma physics and comprises key
components of the Aldridge Commissions main
research themes of origins, evolution and
fate. Finding 2. Accurate, effective predictions
of space weather throughout the solar system
demand an understanding of the underlying
physical processes that control the system. To
enable exploration by robots and humans, we need
to understand this global system through a
balanced program of applied and basic science.
Findings (2/2)
Finding 3. To achieve the necessary global
understanding, NASA needs a complement of
missions in both the Living With a Star and Solar
Terrestrial Probe programs supported by robust
programs for mission operations and data
analysis, Explorers, suborbital flights, and
supporting research and technology. Finding 4
The committee concurs with the principles that
were employed for setting priorities in the
decadal survey and believes that they remain
appropriate and relevant today. Finding 5 The
committee concludes that, for an SEC program that
properly fulfills its dual role of scientific
exploration and of enabling future exploration,
the sequence recommended in the decadal survey
report remains important, timely, and appropriate.
Contributions of SEC Missions to the Exploration
Objectives and Relevance of Planned SEC Missions
Notional Budgets Survey Revised
Consider Far-Term Priorities as Exploration Needs
are Defined
Maintain Near-Term Mission Priorities
Keep Solid Foundations
Recommendation 1. To support the exploration
initiative there must be a robust SEC program,
including both LWS and STP lines, that studies
the heliospheric system as a whole and that draws
upon a balance of applied and basic
science. Recommendation 2. The programs that
underpin the LWS and STP missions - MODA,
Explorers, suborbital program, SRT - need to
continue at a pace and level that will ensure
that they can fill their vital roles in
SEC. Recommendation 3. The near-term priority
and sequence of solar, heliospheric and geospace
missions should be maintained as recommended in
the decadal survey both for scientific reasons
and for the purposes of the exploration
Three Important Considerations
  • stretched schedule -gt loss of synergy between
    missions - E.g. GeoSpace/Ionosphere-Thermosphere
    Storm probes and Solar Dynamics Observatory, MMS
    and GS Radiation Mapper
  • Some missions deferred beyond 10-year horizon
    (JPM, Stereo Magnetospheric Imager, Solar Wind
    Sentinels, Mars Aeronomy Probe). These issues
    will demand careful attention as NASA develops
    its overall plan for science in the exploration
  • The Jupiter Polar Mission, which was given a high
    priority in the decadal survey, is an important
    exploration science mission in its own right. The
    Mars Aeronomy Probe, which was recommended in the
    solar system exploration survey but deferred in
    the solar and space physics decadal survey, now
    takes on heightened significance because of its
    role as both an enabling mission and a scientific
    exploration mission. Both missions deserve
    serious consideration in the overall context of
    solar system exploration priorities.

(1) How is the report responsive to Exploration?
  • - we highlight how each element of the SEC
    program (both missions and supporting programs)
    is relevant to Exploration
  • text of Ch2
  • 2 tables
  • 1-page description of each mission and its
  • - major findings 1 and 2 and recommendations 1
    and 2 emphasize
  • (a) SEC science is consistent Adridge report and
    the Roadmap)
  • (b) we need to understand the underlying
    physical principles to provide effective space
    weather prediction for astronauts.
  • - increased emphasis on the Mars Aeronomy Mission

(2) Why did we not emphasize solar and
heliospheric missions?
  • -Space weather prediction in the near-Earth
    environment remains important to protect humans
    and spacecraft.
  • Currently, Solar Probe and Solar Wind Sentinels
    are not sufficiently developed to justify a
    change in priority
  • The priorities for the Solar Probe and Solar Wind
    Sentinels missions should be evaluated as
    Exploration needs become clearer

(3) Why did we not drop geospace missions and
emphasize the needs of going to Moon and Mars?
  • - there are important issues of response of the
    geospace environment to solar activity, critical
  • (a) understanding response of terrestrial
    weather and climate to solar forcing
  • (b) continued presence of humans and spacecraft
    in Earth orbit.
  • - understanding of the physics of the terrestrial
    upper atmosphere/ionosphere and its response to
    solar activity forms the basis / starting point
    for studies of Mars' aeronomy, critical for
  • (a) aerobraking/aerocapture in the martian
  • (b) understanding the escape of volatiles such
    as water from Mars

  • Insert Senate mark-up language?
  • Response in Nature, elsewhere?

Solar and Space Physics and Its Role in Space
One-Page Descriptions of Each Mission