1998 Incoherent Scatter Coordinated Observation Days
In the following table, column 2
gives the start and end date of the experiment, column 3 gives
the day of the week of the start of the experiment, column 4
is the length of the experiment, column 5 shows dates when IMP 8 is in the
solar wind and column 6 shows the date of the new moon.
Incoherent Scatter Coordinated Observation Days start at 1600UT on the
first day indicated and end at 1600UT on the last day indicated. However,
radars are encouraged to start earlier on the first day where operational
- DATABASE. The emphasis should be on broad latitudinal coverage
of the F region.
A. van Eyken -
- MLTCS/CADITS. Combined local E and F region measurements, including
vector velocities, with 15 minute time resolution.
Latitudinal coverage may be sacrificed to meet this goal.
C. Fesen -
R. Johnson -
- WLS. Wide-Latitude Substorm Dynamics
These are 'floating' days, the exact operation dates to be selected
about one month before based on available predictions. Radars which
cannot accommodate this flexibility should run on the dates specified
on the firts line of the entry.
Modes with temporal resolutions better than 5 minutes should be used.
The WLS campaigns differ from GISMOS in that they concentration
on the extent and dynamics of the auroral oval using the
longitudinally spaced ISRs available in the late 1990s.
J. Foster -
- POLITE aims to advance our understanding of topside light ion
morphology and dynamics through a combination of modeling efforts
and coordinated observations by the ISR chain and by DMSP satellite
overflights. The use of the full latitudinal and longitudinal
extent of the ISR chain is critical to the campaign, as one key
objective is the study of the latitudinal and longitudinal
variations of hydrogen, oxygen, and helium ions.
Simultaneous measurements of neutral oxygen, hydrogen, and helium
are also important, in order to explore the coupling between ionic
and neutral species in the lower topside.
Observations at the solstices are of particular interest. The helium
ion layer descends in altitude and increases in strength during the
wintertime, making observation easier for the ISR chain.
Significant asymmetries in field-aligned flows are also at their
maximums during summer and winter solstices.
IMF support is not very important, but new moon periods are critical
since optical support is required for simultaneous neutral species
P. Erickson -
Updated 24 January 1998.