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LWS SCIENCE ARCHITECTURE TEAM (SAT)
SAT MEMBERSHIP LIST As of 6/15/01
- Glenn Mason (U. Maryland, Chair) -- 301-405-6203
- Spiro Antiochos (NRL) -- 202-767-6199
- Len Fisk (U. Michigan) -- 734-647-3660
- Rod Heelis (U. Texas, Dallas) -- 972-883-2822
- Paul Kintner (Cornell) -- (607)255-5304
- Judith Lean (NRL)--202-767-5116
- Richard Mewaldt (Caltech)-- 626-395-6612
- George Paulikas (Aerospace Corp., ret. -- 310-336-7076)
- Geoff Reeves (Los Alamos National Lab) -- 505-665-3877
- Bob Robinson (NSF - Upper Atm.) -- 703-292-8529
- Karel Schrijver (Lockheed Martin) -- 650-424-2907
- Dick Wolf (Rice U) -- 713-348-3308
- Janet Barth (GSFC) -- 301-286-8046
- Gary Heckman, NOAA Space Environment Center -- 303-497-5687
- Col. Mike Jamilkowski, USAF/DOD -- 703-607-0739 (alternate Ms. Marsha Korose, 703-607-0742)
- Human Space Flight representative TBD
- LWS Project Scientists : Dick Fisher (GSFC) -- 301-286-8701 & Larry Zanetti (APL) -- 240-228-6897
SAT CHARTER
Charter for the Living With a Star (LWS) Science Architecture Team (SAT)
(Draft 9/15/00)
The goal of the LWS program is to develop the scientific understanding
necessary to effectively address those aspects of the connected
Sun–Earth system that directly affect life and society.
The SAT will function as a top-level science working group
for LWS and report to the Sun Earth Connection (SEC) Science
Program Director and the Sun Earth Connection Advisory
Subcommittee (SECAS). The main role of the SAT is to examine
the LWS program requirements and architecture from an overall
systems point of view. The SAT is composed of solar-terrestrial
scientists and representatives from the applications community.
The members will be selected by the SEC Science Program
Director at NASA HQ. It is expected that there will be
a periodic rotation in the membership of the SAT as the
LWS program evolves.
The SAT team will work closely with HQ and with the Goddard LWS Program
Office and produce findings on the following:
- Program level goals and objective
- System science requirements and priorities
- Top-level requirements for measurements/missions
- Top level system ground segment requirements
- Program success metrics
- Space Environment Testbed system requirements
- Relationships to complementary programs and partnerships
Following the delivery of the findings, the SAT will continue to report
to NASA HQ and SECAS and also serve as a top-level science
working group for the LWS Program Office and LWS Science
Definition Teams.
REPORT CONCERNING THE NOVEMBER 2000 MEETING
Date: Mon, 20 Nov 2000 07:22:00 -0800 (PST)
From: AGU newsletter editor <editor@igpp.ucla.edu>
To: agu_spa@igpp.ucla.edu
Subject: SPA SECTION NEWSLETTER, Volume VII, Issue 120
1. Report on Meeting of the Living With a Star (LWS) Science Architecture Team, November 7-9, 2000
From: Glenn Mason <Glenn.Mason@umail.umd.edu>
NASA's new LWS program has the goal to develop the scientific understanding
necessary to effectively address those aspects of the connected
Sun-Earth system that directly affect life and society.
To assist in this program, George Withbroe created the
LWS Science Architecture Team (SAT), with the intention
that it function as a top-level science working group for
LWS. The SAT reports to George Withbroe, the Sun Earth
Connection (SEC) Science Program Director and the Sun Earth
Connection Advisory Subcommittee (SECAS). The main role
of the SAT is to examine the LWS program requirements and
architecture from an overall systems point of view. The
SAT is composed of solar-terrestrial scientists and representatives
from the applications community. Its members were selected
by the SEC Science Program Director at NASA HQ. It is expected
that there will be a periodic rotation in the membership
of the SAT as the LWS program evolves.
The SAT held it first meeting at NASA Headquarters on Nov 7-9, and received
briefings from the Goddard LWS program managers on the
current status of the LWS architecture, and a description
of the notional space flight missions developed to date.
The SAT also had received prior guidance from SECAS regarding
key science and mission definition issues. SECAS recommended
that the SAT carry out its architecture definition without
being bound to the notional set of missions.
For this initial meeting, the SAT decided to focus on program level goals
and objectives. When those have been developed then system
science requirements and priorities can be defined. At
that point, top-level requirements for measurements/missions
and theory/modeling can then be determined, followed by
actual implementation plans. Since LWS resources are tightly
constrained, it was recognized that this process would
require iteration since the optimally defined program would
likely exceed the budgetary resources.
The majority of the SAT meeting was then devoted to defining a set of program
areas that were aligned with the LWS program goal. It was
decided to organize the activity into three subprograms,
each of which includes all of the SEC research discipline
areas. This approach maintains a systems, sun to earth,
perspective and analysis:
1) Space Explosive Events: this program would include rapidly evolving
phenomena (such as flares, CMEs, Interplanetary Shocks),
with scope covering the initiating physics at the Sun,
interplanetary evolution, and then interaction with the
magnetosphere and ionosphere. Explosive events initiated
within the magnetosphere, such as auroral substorms,
would be included in this program. Important phases of
these events have time scales of minutes to hours.
2) Space Storm Events: this program would include more slowly evolving
phenomena (such as fast solar wind streams and ring current
formation), with scope covering the initiating physics
at the Sun, interplanetary evolution, and then interaction
with the magnetosphere and ionosphere. Time scales associated
with these events are of order of days.
3) Space Environments: this program would include much longer time scale phenomena
driven by solar activity, such as solar cycle dependence
of radiation belt intensities and climate effects. Time
scales in this program are on the order of months to decades.
A key distinction between the first two subprograms above are in the area
of predictive capabilities, warnings, and nowcasting. These
different time scales may require different approaches
in theory and modeling, as well as in observational capabilities.
It is clear that although each of the three programs above has special requirements,
there is obviously a good deal of overlap in observational,
theory & modeling issues and requirements. The SAT
agreed on a finding stating that adding scientists to the
program staff would be highly beneficial in order that
these many pieces would be coordinated, and that other
concurrently-flying missions be used where practical to
supplement the LWS mission. Other US and international
government and industry missions and capabilities should
be considered.
Next steps: the small membership of the SAT does not cover all the research
sub-disciplines necessary to map the above program goals
onto system requirements and priorities. In the next meeting,
to be held at the end of January, a somewhat larger group
will be assembled to carry out this task. The SAT will
then coordinate the outputs of the larger group. The overall
tasks and schedule of the SAT is to have developed the
program level goals & objectives, science requirements
and priorities, and top-level requirements for measurements,
models & missions by May 2001.
Note that there will be a special session on the LWS program at the upcoming
AGU meeting in San Francisco in session SH12A, Moscone
Center Room 135, Monday December 18. The SAT invites comments
from the community that can be directed to any member of
the team.
submitted by Glenn Mason, Chair, LWS SAT
SAT members:
- Spiro Antiochos (NRL)
- Janet Barth (GSFC)
- Len Fisk (U. Michigan)
- Rod Heelis (U. Texas, Dallas)
- Col. Mike Jamilkowski, (USAF/DOD)
- Gary Heckman (NOAA Space Environment Center)
- Paul Kintner (Cornell)
- Lou Lanzerotti (Bell Labs Lucent Tech)
- Judith Lean (NRL)
- Richard Mewaldt (Caltech)
- George Paulikas (Aerospace Corp., ret.)
- Geoff Reeves (Los Alamos National Lab)
- Bob Robinson (NSF - Upper Atm.)
- Karel Schrijver (Lockheed Martin)
- Dick Wolf (Rice U)
REPORT CONCERNING THE JANUARY/FEBRUARY 2001 MEETING
To: editor@solar.stanford.edu, editor@igpp.ucla.edu
From: Glenn Mason <Glenn.Mason@umail.umd.edu>
Subject: Living With a Star Science Architecture Team Report
On behalf of the LWS Science Architecture Team I would like to ask you
to circulate the report below in the Solar News and the
AGU-SPA newsletters.
Thank you for your help,
Glenn Mason
Report on the Living With a Star (LWS) Science Architecture Team Workshop,
January 31, 2001, and SAT meeting Feb. 1-2, 2001
The LWS Science Architecture Team Workshop and recent team meeting continued
with the SAT process of examining LWS program requirements
and architecture from a systems point of view.
The LWS goals addressed by the workshop can be summarized as
- Solar Influences on Global Change.
- Prediction of Solar Proton Events (Astronaut safety, especially for deep space)
- Prediction of geomagnetic storms for areas where effective mitigation is possible (e.g. power grid)
- Nowcasting Space Environment
- Predictions of space environment for operation and utilization of space systems.
- Space Environmental "climate" data (e.g., specification models)
The approach taken by the SAT has been to organize LWS program areas
defined in terms of linked sequences of events in order to
- follow physical processes from start to finish (e.g. sun to upper atmosphere)
- ensure that all significant links in the chain are identified
- enable a global theory & modeling effort to achieve predictive goals
The workshop invitees (about 50 total) were chosen to supplement the
SAT in order to have a sufficiently broad group of experts
in order to identify all phenomena relevant to LWS, i.e. to :
- Identify predictive requirements and goals (without regard to the notional set of LWS missions)
- Identify required observations and theory / modeling
The workshop split into three working groups, which covered the following areas:
WG 1)
- Space Explosive Events (chair: Gary Heckman)
- Solar Particle Events, solar x-ray events, CMEs, shocks
- substorms (joint with #2)
- atmospheric drag (joint with #2)
WG 2)
- Space Storm Events (chairs: Karel Schrijver, George Paulikas)
- fast solar wind streams and geospace response
- ionospheric scintillations
- substorms (joint with #1)
- atmospheric drag (joint with #1)
WG 3)
- Space Environments: (chairs: Rod Heelis, Judith Lean)
- radiation belt solar cycle dependence
- climate change influence
- neutral atmosphere / atmospheric drag
- solar cycle SPE "climate"
For the various space weather phenomena, typical science questions addressed were:
- what determines when an XXX will occur?
- >what determines the spatial, temporal, and spectral development?
- what determines the magnetospheric / ionospheric response?
- what parameters should be measured & where?
- what theories and models are needed?
In the climate area, a typical goal examined was: identify and quantify
the Earth's near-surface temperature changes attributable
to solar variability.
A great deal of information was collected at the workshop; the productivity
of the meeting was greatly enhanced by prior work by many
of the participants in broad studies of space weather and
climate issues as summarized by three recent reports, namely:
- The National Space Weather Program Implementation Plan, July 2000
- NASA Sun-Climate Workshop, Summary Report, March, 2000
- The Space Weather Architecture Study, National Security Space Arch. 2000
After the workshop, the SAT met for two days to organize the results of the
workshop, and begin definition of the observations, theory,
and modeling required by the program. One suggestion from
a workshop participant was to organize the observational
program in order to "feed the models". In terms
of Science Definition Teams, one SAT member suggested that
the LWS program needed to try a radical change in management
approach: organize the science teams around problems, not
specific space flight missions.
The SAT members are using the output and suggestions from the workshop,
and continuing to refine the material collected at the
workshop. The next SAT meeting will be May 7-9. The SAT
is most appreciative of the excellent support by SEC science
community and the LWS project scientists at GSFC and APL
in support of its activities.
The SAT invites comments from the community that can be directed to any
member of the team.
submitted by Glenn Mason, (U Maryland), Chair, LWS SAT
SAT members:
- Spiro Antiochos (NRL)
- Janet Barth (GSFC)
- Len Fisk (U. Michigan)
- Rod Heelis (U. Texas, Dallas)
- Col. Mike Jamilkowski, (USAF/DOD)
- Gary Heckman (NOAA Space Environment Center)
- Paul Kintner (Cornell)
- Judith Lean (NRL)
- Richard Mewaldt (Caltech)
- George Paulikas (Aerospace Corp., ret. )
- Geoff Reeves (Los Alamos National Lab)
- Bob Robinson (NSF - Upper Atm.)
- Karel Schrijver (Lockheed Martin)
- Dick Wolf (Rice U)
REPORT CONCERNING THE MAY 2001 MEETING
Date: Thu, 5 Jul 2001 13:19:19 -0700 (PDT)
From: AGU newsletter editor <editor@igpp.ucla.edu>
To: agu_spa@igpp.ucla.edu
Subject: SPA SECTION NEWSLETTER, Volume VIII, Issue 68
1. Report on the Living With a Star (LWS) Science Architecture Team, NASA
Headquarters, May 7-9, 2001
From: Glenn Mason <Glenn.Mason@umail.umd.edu>
The LWS Science Architecture Team (SAT) meeting continued work to define
system level measurement and theory/data analysis requirements for the
program. The meeting began with a briefing from Mario Acuna, Art Poland,
and Jim Slavin on "lessons learned from the ISTP" program, regarding
challenges to coordinating multi-mission studies.
The LWS reviewed the final version of the document summarizing
the January 31, 2001, workshop. This document is now available
on the web at:
http://lws.gsfc.nasa.gov/documents/sat/lws_sat_workshop0601.pdf
The SAT then heard presentation from leaders of the working groups in the
January workshop: Gary Heckman, Karel Schrijver, Rod Heelis, and Judith
Lean. The group then split into two subgroups (Space Storms and Space
Environment) to develop a common framework that described LWS needs in
addressing specific problem areas (e.g. spacecraft drag). For each area
surveyed, the group noted the accuracy of existing models, identified
desired model improvements and the measurements that would be needed to
implement these improvements, and, finally, identified existing or planned
data sources that could provide these measurements. In this process,
measurements not covered by existing or planned missions could be
identified, and their specific role in meeting LWS requirements could be
noted. This effort was only begun at the meeting, and was continued by SAT
members after the meeting.
The SAT wrote a number of "findings" regarding
issues raised at its meeting. These findings dealt with
the following topics:
- Overall guiding principles for the LWS program
- SDO instrument payload
- SDO Geospace instrumentation
- Theory / Modeling and Data Analysis
- Instrument development
Community members interested in the full text of the findings
can find them at the LWS web site at:
http://lws.gsfc.nasa.gov/documents/sat/lws_sat_findings0501.pdf
The next meeting of the LWS SAT will be July 16-18, at NASA Headquarters.
The SAT invites comments from the community; these can be directed to any
member of the team. Please note that news about SAT activities, including
membership and past reports to the community, are available on the LWS web page at:
http://lws.gsfc.nasa.gov/news.htm
submitted by Glenn Mason, (U Maryland), Chair, LWS SAT
SAT Members:
- Spiro Antiochos (NRL)
- Janet Barth (GSFC)
- Len Fisk (U. Michigan)
- Rod Heelis (U. Texas, Dallas)
- Col. Mike Jamilkowski, (USAF/DOD)
- Gary Heckman (NOAA Space Environment Center)
- Paul Kintner (Cornell)
- Judith Lean (NRL)
- Richard Mewaldt (Caltech)
- George Paulikas (Aerospace Corp., ret. )
- Geoff Reeves (Los Alamos National Lab)
- Bob Robinson (NSF - Upper Atm.)
- Karel Schrijver (Lockheed Martin)
- Dick Wolf (Rice U)
REPORT CONCERNING THE JULY 2001 MEETING
SPA SECTION NEWSLETTER
Volume VIII, Issue 79
6 August, 2001
Editor: Guan Le
Email: editor@igpp.ucla.edu
1. Report on the Living With a Star (LWS) Science Architecture Team, NASA Headquarters, July 16-18, 2001
From: Glenn Mason <Glenn.Mason@umail.umd.edu>
The LWS Science Architecture Team (SAT) meeting continued work to define
system level measurement and theory, modeling, and data analysis
requirements for the program. We were briefed by Michael Hesse on
requirements of the Theory, Modeling and Data Analysis program, and by Joe
Bredekamp on coordinated Data System issues.
The SAT then heard presentation from leaders of the Space Storms and Space
Environment Subgroups. Gary Heckman (unable to attend) and Dick Mewaldt
were responsible for the Storms subgroup, and Rod Heelis and Judith Lean
for the Environment subgroup. A great deal of progress had been made by
the subgroups since the May meeting, and the templates developed at that
time were nearly complete for all the science problem areas.
The SAT then discussed measurement requirements that should be pursued by
the LWS program, either as new missions or as partnering or ride-along
instruments on missions from other agencies. Emphasis was placed on
filling "holes" in the observational picture available from missions in
place or planned from other programs such as, e.g., ISTP, or the Solar
Terrestrial Probes, or DMSP. The basic recommended missions that cover the LWS areas were:
- Solar Dynamics Observatory (already studied)
- Radiation Belt missions that would map the geosynchronous region, as
well as the range of L-shells out to geo (mission lifetime
of 10 yrs to be achieved with 2 separate launches roughly 5 yrs apart)
- Low Earth orbit/ high inclination mission to map Ionosphere/Thermosphere as
well as low altitude radiation levels and polar cap
- A mission in elliptical, polar orbit to image the polar caps
- A set of spacecraft to the inner heliosphere
This set of missions was roughly estimated to have costs that could be met
during the initial part of the LWS program, with launches between 2005
(SDO) and 2009. The period of simultaneous observations recommended by the
SAT would begin around late 2009 and would continue for a period of years.
The SAT wrote several "findings" regarding issues raised at its meeting. These findings dealt with the following topics:
- the Geospace Mission Definition Team
- Theory, Modeling and Data Analysis Program Management
- Comprehensive Data System Management
Community members interested in the full text of the findings can find them at the LWS web site at:
http://lws.gsfc.nasa.gov/lws_sat_findings701.pdf
A summary presentation of the SAT work was presented to the
Sun-Earth-Connections Advisory Subcommittee (SECAS) at NASA HQ on July 23.
The SAT invites comments from the community; these can be directed to any
member of the team. Please note that news about SAT activities, including
membership, findings, and past reports to the community, are available on
the LWS web page at: http://lws.gsfc.nasa.gov/lws_news.htm
submitted by Glenn Mason, (U Maryland), Chair, LWS SAT
SAT Members:
- Spiro Antiochos (NRL )
- Janet Barth (GSFC)
- Len Fisk (U. Michigan)
- Rod Heelis (U. Texas, Dallas)
- Col. Mike Jamilkowski, (USAF/DOD)
- Gary Heckman (NOAA Space Environment Center)
- Paul Kintner (Cornell)
- Judith Lean (NRL)
- Richard Mewaldt (Caltech)
- George Paulikas (Aerospace Corp., ret. )
- Geoff Reeves (Los Alamos National Lab)
- Bob Robinson (NSF - Upper Atm.)
- Karel Schrijver (Lockheed Martin)
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