October 9-10, 2005

KST UHF operation memorandum for the October 9-10, 2005 experiment

　(Using Netscape might be in trouble on this page.)

Experiment name: sp_ni_vw:　 arc1 (CP1)

This SP (vw using arc1/CP1) is made to investigate vertical　 ion/neutral motion in the E-region. PI is Dr Shin Oyama..

elan files:puny :/kst/exp/ni/arc1/arc1.elan

　　　　　　　　　 puny:/kst/exp/ni/arc1/scans/vw_pattern.elan

Pulse scheme: arc1

Start time: 04:00 UT on October 9, 2005

End time: 08:00 UT on October 10, 2005

Participants: Satonori Nozawa, Kazuhiro Adachi, and Hiroshi Handa

Before our experiment: HFSEE

After our experiment: DLETE (VHF and Heating, not using UHF)

VHF is operated between 0430 and 0830 UT on October 9.

VHF is operated between 0430 and 0800 UT on October 10.

No Heating experiment.

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Note: (time in UT)

October 9

　　　　　 Partly Clear Sky.　 Temperature is 1 deg.

04:01　 START

　　　　　 at EROS4 console (UHF)

　　　　　 runexp /kst/exp/ni/arc1/arc1 04:00 vw NI

　　　　　 　(183.2 77.2 282.97km is set 　for tristatic measurements)

04:01　 sod runexp /kst/exp/ni/arc1/arc1 04:00 vw NI

　　　　　 kir runexp /kst/exp/ni/arc1/arc1 04:00 vw NI

04:01　 enablerec

04:01　 sod enablerec

　　　　　 kir enablerec

04:05　 at matilda

　　　　　 guisdap –a

　　　　　

04:09　 1894 kW

04:30　 VHF starts (UK SP: PAMS)

05:04　 1837 kW　 sys temperature = 115 K (177.8 K)

06:04　 HRP

06:08　 1655 kW

06:32　 HRP

06:33　 1657 kW

06:34　 HRP

06:36　 1653 kW

06:37　 HRP

06:41　 1420 kW

06:44　 1538 kW

06:58　 HRP

07:05　 1794 kW

07:22　 HRP

07:27　 1823 kW

07:55　 1812 kW

08:30　 VHF ends

08:30　 HRP　 (Big noise.　 I sometimes heard noise at every HRP.

　　　　　　　　　　　　　 This one is the biggest)

08:35　 1828 kW

CLOUDY　 12 deg C

08:55　 HRP

08;56　 1830 kW

10:00　 HRP

10:02　 1642 kW

12:07　 HRP

12:09　 1641 kW

12:55　 1628 kW

13:44　 HRP

13:46　 1616 kW

15:13　 1600 kW

16:42　 1578 kW

Rainning

18:05　 Phone call from Kiruna. Problem at Kiruna.

17:58　 stop Kiruna

18:40　 restart Kiruna

18:49-18:53　 could not record data. Restart Kiruna.

18:58　 no connection with Kiruna

Failure of a GPS clock at Kiruna ?

19:08　 restart Kiruna　 (but, it is found later that the start time is wrong)

20:40　 HRP

20:44　 1558 kW

October 10, 2005

00:27　　 restart Kiruna (with a start-time of 00:24)

00:36　　 1872 kw

04:30　 VHF started

04:40　　 HRP (big noise)

04:47　　 1846 kW

04:55　　 HRP (big noise)

04:58　 1629 kW

06:03　　 HRP (big noise)

06:06　 1648 kW

06:15　　 HRP (very big noise)

06:18　　 HRP (big noise)

06:24　 1420 kW

08:05　 stopexp (all sites)

　　　　　

　

sp_ni_vw

This experiment addresses the lower ionospheric/thermospheric vertical motion, which is one of the critical aspects of Mesosphere-Thermosphere-Ionosphere coupling at high latitudes. The vertical wind structure is not fully understood, although it is quite significant because one consequence of vertical mixing associated with vertical motions is to modify the thermospheric and ionospheric compositional structure. The goal of this project is to estimate vertical neutral winds using ionospheric parameters observed with the EISCAT UHF radar, and to determine vertical neutral and plasma motions accompanying geomagnetic and climatological activities.

This experiment will be done under collaborations of 2 countries such as Japan (24hrs) and Norway (12hrs).