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2002 Incoherent Scatter Coordinated Observation Days
URSI-ISWG
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 and column 5 shows the date of the new moon.
Incoherent Scatter Coordinated Observation Days should start at 1300UT
on the first day indicated (to ensure that all radars are operating correctly
by 1600UT) and end at 1600UT on the last day indicated. However,
radars are encouraged to start as early as possible on the first day where operational considerations allow.
2002 Incoherent Scatter Coordinated Observation Days |
| Month |
Observation dates |
Day |
Observation length (days) |
New Moon |
Notes |
| January |
|
|
|
13 |
|
| February |
|
|
|
12 |
|
| March |
4-29 |
Monday
(default) |
4, floating
default 11-15 |
14 |
4 day floating SELT run within a four week alert interval.
To be co-ordinated by Joe Salah
|
| April |
2-17 |
Tuesday
(default) |
3, floating
default 9-12 |
12 |
3 day floating CSSP run within a two week alert interval.
To be co-ordinated by John Foster
|
| May |
|
|
|
12 |
|
| June |
11-12 |
Tuesday |
1 |
10 |
Database
|
| July |
|
|
|
10 |
|
| August |
13-14 |
Tuesday |
1 |
8 |
Database
|
| September |
|
|
|
7 |
|
| October |
5-7
1-29 |
Saturday
Monday
(default) |
2
4, floating
default 7-11 |
6 |
POLITE
4 day floating SELT run within a four week alert interval.
To be co-ordinated by Joe Salah
|
| November |
11-15 |
Monday |
4 |
4 |
LTCS
|
| December |
3-5 |
Tuesday |
2 |
4 |
Millennium Polar Max
|
| Total |
|
|
21
(target: 21) |
|
|
| Last updated: Friday, 18-Jan-2002 23:07:33 GMT |
Notes
SELT: Storm Effects in the Lower Thermosphere
Contact: Joe Salah
(jsalah@haystack.mit.edu)
Floating 4 days within a ten-day alert period in March/April and
September/October 2002.
The goal of this project is to measure temperature and winds in the
lower thermosphere (90-150 km) during intense geomagnetic storms. Data
from ISRs and other radar and optical instruments will be collected
in response to an alert of a major storm (Kp> 5 or 6). Fine altitude
and time resolution (similar to LTCS modes) is desired. A one-month
period will be first identified in the ISR calendar, then narrowed to a
10-day stand-by interval 6 weeks before the start of the month. The
observations will last 4 full days, and may be extended at the
discretion of each radar if a storm is in progress. If a storm does not
occur during the alert period, normal LTCS observations will be made as
part of climatological studies. It is anticipated that during 2002 the
TIMED satellite will be able to gather simultaneous data during the
campaigns to allow global studies to be carried out towards the same
goals. General circulation and tidal models will be run to compare
with the observations and help interpret them. In 2002, we request two
months for scheduling: March or April 2002, and September or October 2002.
Will co-ordinate with TIMED
if possible.
CSSP: Coordinated Storm Study Period
Contact: John Foster
(jcf@haystack.mit.edu)
A flexible coordinated storm study period (CSSP) during April 2002 - to
include the new moon period. A three-day WD run is requested - with default
core interval Mon-Fri the week of new moon.
A two-week window during which att ISRs would attempt to put high
priority on responding to a CME (e.g.) would be the 'flexible' feature.
Catching another July 15/16, 2000 or April 5/6 2000, or one of the
other Kp ( events of this solar cycle would be the objective.
There would be a need for low-altitude radar participation -
Millstone, Arecibo, Irkutsk, Jicamarca are essential because of the
expansion of the 'active regions' into their latitude perview.
Database
Contact: Tony van Eyken
(Tony.van.Eyken@eiscat.com)
These experiments are intended to help fill in some areas of the
accumulated data record for which we have relatively little data.
The emphasis should be on broad latitudinal coverage of the F region.
Millennium Polar Max
Contact: Santimay Basu
(santimay@aol.com) and Cesar Valladares
(cesar@dl5000.bc.edu)
POLITE
Contact: Phil Erickson
(pje@haystack.mit.edu)
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. 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 measurements.
Updated by Tony van Eyken,
Friday, 18-Jan-2002 23:07:33 GMT