March 4, 2006
KST UHF operation memorandum for the
March 4, 2006 experiment
@(Using Netscape might
be in trouble on this page.)
Experiment name: sp_ni_mi:@
arc1 (CP1 scanning)
Today, only 3 positions are scanned.
@@ pointrheight 184.5 77.1
250@ SYNC 1200
@@ pointrheight 184.5 63.6
250@ SYNC 1200
@@ pointrheight 139.42
69.483 250@ SYNC 1200
This SP (mi using arc1) is made to investigate the 3-D current
system using artificial ionosphere heating in the E-region. PI is Prof R Fujii.
elan files:puny :/kst/exp/ni/arc1/arc1.elan
@@@@@@@@@
puny:/kst/exp/ni/arc1/scans/mi_pattern.elan
Pulse scheme: arc1
Start time: 15:00 UT on March 4, 2006
End time: 19:00 UT on March 4, 2006
Participants: Satonori
Nozawa, Kazuhiro Adachi, and Takuo Tsuda
Before our experiment: Nothing
(but, test)
After our experiment:
Nothing
Together with Heating experiment.
(1) 4 MHz
(2) X-mode
(3)10 min ON and 10 min OFF
(4) Field-aligned.
Concerning (3), please start the operation one minute past the starting
time
(i.e., 15:01 UT).
---------------------------------------------------------------------------
Note:
(time in UT)
March
4
@@@@@ Clear Sky.@ Temperature is -6 deg.
run
/kst/exp/ni/arc1/arc1 15:00 mi NI
rem ksu run /kst/exp/ni/arc1/arc1 15:00
mi NI
14:52@ runexp
/kst/exp/ni/arc1/arc1
15:00 mi NI
14:53@ sod runexp /kst/exp/ni/arc1/arc1 15:00 mi NI
@@@@@ kir
runexp /kst/exp/ni/arc1/arc1
15:00 mi NI
15:00@ START
@@@@@ at EROS4 console (UHF)
15:00@ enablerec
@@@@@ sod
enablerec
@@@@@ kir enablerec
@@@@@
15:03@ power up
15:08@ at matilda
@@@@@ guisdap –a
@@@@@
15:09@ 1.2 MW
15:20
p1 -> p2 (16 sec)
15:40
p2 -> p3 (40 sec)
16:00
p3-> p1 (40 sec)
17:04
– 17:11 Tx is stopped to check the gcrow-barh.
19:00@ stopexp (all sites)
@@@@@
@
sp_ni_mi
Development of polarization electric field due to artificial, sudden changes of ionospheric parameters by the EISCAT Heating facility
Here we propose an EISCAT heating experiment along with KST UHF observations for understanding the nature of the magnetosphere-ionosphere (M-I) coupling, in particular,@ of the electric field in the polar ionosphere.
EISCAT
heater:
-The carrier frequency is set close to the plasma frequency around 110 km high.
The sequence of the on-off of the heater is 10 min on and 10 min off. (the traveling time of the Alfven wave between M and I is a few minutes, so within 10 min saturation to reach an equilibrium state can be expected)
EISCAT UHF
radar:
Multi-points Arc
mode. The remote antennae point the common volume around 280 km. The EISCAT UHF
radar can measure only one line of sight at one time and cannot provide any
information in other regions. It is therefore very important to check if the
spatial and temporal development of the enhanced region by the heater and those
of physical parameters have quantitative reappearance.