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2001 ISTP Senior Review Proposals
The 2001 ISTP Senior Review proposals, detailing science and operations plans
for the next four years, are available.
The ISTP Global Geospace Science (GGS) program consists of three spacecraft missions (Wind, Polar, and Geotail),
coordinated ground observing investigations, and theory and modeling investigations. The current proposal spans solar
maximum, characterized by powerful transient events and
coronal mass ejections, and the approach to solar minimum, characterized
by large transient equatorial holes. These latter structures
are associated with long-lived, high velocity solar wind
streams that produce recurrent geomagnetic storms and which
somehow produce the largest fluxes of damaging MeV radiation
belt electrons. We propose to take full advantage of the ISTP assets
to accomplish the following general goals for the extended phase:
- We will extend the systems-science approach, describing
the dynamic processes associated with the decline of the
solar cycle. This will be based on observable quantities and
be demonstrable through realistic physical 3D global models
of the magnetosphere system.
- We will understand the dynamic processes associated with
the equatorial region of 2-30 RE . We will quantify the relative
influences that solar and terrestrial source plasmas have
on dynamic equatorial processes. We will determine the equatorial
storm plasma injection and loss as a function of solar
input. And, we will understand the connection between radiation
belt time variations and their direct connection with solar
- We will investigate the global consequences of magnetic
reconnection. We expect to gain an understanding of substorm
onset and instability processes associated with the inner magnetosphere.
We will establish which are the controlling
reconnection processes and quantify their relative importance
for system dynamics. Merging versus current disruption?
Component versus antiparallel merging? Which are controllers,
which act as regulators? Are the fundamental processes
different on the dayside, the flanks and in the tail?
- We will quantify the 3-D structure and evolution of large-scale
interplanetary configurations and their interaction
with the magnetosphere. The evolution and dynamics of
large scale interplanetary structures such as corotating interaction
regions (CIRs), magnetic clouds, shocks, flux ropes,
etc. will be characterized using new 3-point heliosphere
download .pdf version of ISTP/GGS proposal
Official NASA Contact: Barbara Giles
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