Lower Thermosphere Coupling Study Campaigns

The Lower Thermosphere Coupling Study (LTCS) is a series of campaigns organized to look at the lower thermosphere with MLT and IS radars, especially. This is a list of the plots from the first 4 campaigns for the MLT radars, and a listing and some plots of kindats for the IS radars that address measurements in the lower thermosphere for all campaigns. At the end is a list of non-LTCS E region results from the Chatanika radar.

Web Pages and ISR Contacts for LTCS

ISR LTCS Contacts:

Arecibo, Craig Tepley at craig@naic.edu and Qihou Zhou at zhou@naic.edu

Millstone, Larisa Goncharenko at lpg@haystack.mit.edu

Millstone, CEDAR/TIMED, is Shengpan Zhang at with an LTCS web page available at http://www.haystack.edu/~szhang/cedar_timed.html

EISCAT and EISCAT Svalbard Radar (ESR), general contact Tony van Eyken at tony@eiscat.uit.no. Some who have done EISCAT LTCS work are: Tarlochan Singh Virdi at tsv@aberystwyth.ac.uk, and Phil Williams at pjw@aber.ac.uk.

Sondrestrom, general contact is Jeff Thayer at thayer@sri.com. Some who have done Sondrestrom LTCS work are: Roberta Johnson at rmjohnsn@ucar.edu, and Irfan Azeem at syed.azeem@colorado.edu

LTCS web site: http://www.dartmouth.edu/~cfesen/ltcs
(Roberta Johnson, rmjohnsn@ucar.edu)

MISETA web site: http://www.dartmouth.edu/~cfesen/miseta
(Cassandra Fesen, fesen@tides.dartmouth.edu)

Comments on ISR Plots and Information

Plots for the most recent Millstone LTCS campaigns are available (kindats 13211 and 13212) every half hour and every 3 km during the day. Ion drifts can be calculated between 94 and 151 km, while neutral winds can only be determined up to 130 km. The ion drifts, E fields, and neutral horizontal wind towards magnetic north (Vnmag) are also shown at 300 km. In general, Vie is opposite EpN while Vnmag and Vin are similar to EpE. Vnmag = (-Vipar+Vdifpar)/cos(inc), so Vnmag is also opposite to Viz.

Plots for 6 of the Arecibo LTCS campaigns are available (kindat 2021) every 20 min and 5 km. Images of the neutral winds are shown between 70 and 179 km for 2 days at a time, where all values are plotted. Usually, the height range is higher for the meridional wind. These plots are 'updated' since they are new plots using old data from Qihou Zhou on files aro910315a.cbf and aro990308a.cbf.

Plots for the rest of the ISRs will come later. When ISR data are not available in the CEDAR Database (CDB), or when observations are in the CDB, but they are not lower thermosphere neutral winds, this is noted in parentheses. For some of these cases, it is possible that the analysis of the E-region neutral winds and ion temperatures has not been made yet, or has not been submitted to the CDB. Neutral velocities in the E region can be deduced from knowing the electric field (assumed from vector ion velocities in the F region), the ion velocities in the E region, and ion neutral collision frequencies that rely on ion and neutral temperatures and densities. Hence F region ion vectors are also given below if neutral winds have not been deduced yet.

LTCS-1 21-25 Sep 1987 (Ap=10-46, F10.7=80)

Aug 30,1987-Sep 30,1987, Adelaide

Sep 19,1987-Sep 25,1987, Adelaide

Aug 31,1987-Sep 30,1987, Christchurch

Sep 20,1987-Sep 25,1987, Christchurch

Sep 25,1987-Sep 30,1987, Collm

Sep 21,1987-Sep 26,1987, Durham

Aug 31,1987-Sep 30,1987, Mawson

Sep 15,1987-Oct 15,1987, Saskatoon

Sep 21,1987-Sep 25,1987, Saskatoon

Sep 15,1987-Oct 15,1987, Tromso

(Arecibo ISR F-Region only and Vector Vi (kindat=2011) in CDB)

(Millstone ISR not available in CDB, but does exist and needs re-analysis)

(EISCAT ISR ionospheric parameters only in CDB)

Sondrestrom ISR SRI CWINDS (kindat=15115) neutral winds and revised neutral winds (kindat=30024)

Sep 21-Sep 22, 1987 All Sonde revised data for this period
Sep 23-Sep 24, 1987 All Sonde revised data for this period
Sep 25-Sep 26, 1987 All Sonde revised data for this period

LTCS-2 5-10 Dec 1988 (Ap=3-8, F10.7=160)

Nov 29,1988-Dec 31,1988, Adelaide

Dec 3,1988-Dec 10,1988, Adelaide

Dec 5,1988-Dec 11,1988, Christmas Island

Dec 5,1988-Dec 10,1988, Collm

Dec 4,1988-Dec 9,1988, Durham

Dec 5,1988-Dec 11,1988, Platteville

Nov 23,1988-Dec 22,1988, Saskatoon

Dec 2,1988-Dec 11,1988, Saskatoon

Dec 3,1988-Dec 13,1988, Scott Base

Nov 25,1988-Dec 26,1988, Tromso

Dec 3,1988-Dec 10,1988, Tromso

Arecibo ISR (kindat=12999), harmonics of neutral winds and ion temperatures, and daytime values of the neutral winds and ion temperatures

Millstone ISR (kindat=13021), harmonics of neutral winds, and daytime values of the neutral winds

Millstone ISR (kindat=13022), harmonics of ion temperatures, and daytime values of the ion temperatures

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Dec 06-Dec 07, 1988 All Millstone LTCS (joint) data for this period
Dec 08-Dec 09, 1988 All Millstone LTCS (joint) data for this period
Dec 10-Dec 11, 1988 All Millstone LTCS (joint) data for this period

(EISCAT ISR ionospheric parameters only in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Dec 05-Dec 06, 1988 All Sonde revised data for this period
Dec 07-Dec 08, 1988 All Sonde revised data for this period
Dec 09-Dec 10, 1988 All Sonde revised data for this period

LTCS-3 30 May - 4 Jun 1989 (Ap=9-19, F10.7=200)

May 14,1989-Jun 14,1989, Adelaide

May 28,1989-Jun 4,1989, Adelaide

May 30,1989-Jun 5,1989, Christmas Island

May 30,1989-Jun 4,1989, Collm

May 29,1989-Jun 4,1989, Mawson

May 15,1989-Jun 14,1989, Mawson

May 16,1989-Jun 18,1989, Saskatoon

May 28,1989-Jun 6,1989, Saskatoon

May 26,1989-Jun 6,1989, Scott Base

May 16,1989-Jun 18,1989, Tromso

May 30,1989-Jun 6,1989, Tromso

Arecibo ISR (kindat=12999), harmonics of neutral winds and ion temperatures, and daytime values of the neutral winds and ion temperatures

Millstone ISR (kindat=13021), harmonics of neutral winds, and daytime values of the neutral winds

Millstone ISR (kindat=13022), harmonics of ion temperatures, and daytime values of the ion temperatures

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Jun 02-Jun 03, 1989 All Millstone LTCS (joint) data for this period
Jun 04-Jun 05, 1989 All Millstone LTCS (joint) data for this period

(EISCAT ISR ionospheric parameters only in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

May 30-May 31, 1989 All Sonde revised data for this period
Jun 01-Jun 02, 1989 All Sonde revised data for this period
Jun 03-Jun 04, 1989 All Sonde revised data for this period

LTCS-4 12-16 Feb 1990 (Ap=6-50, F10.7=146)

Jan 30,1990-Mar 2,1990, Adelaide

Feb 10,1990-Feb 17,1990, Adelaide

Feb 12,1990-Feb 17,1990, Collm

Feb 12,1990-Feb 16,1990, Durham

Feb 14,1990-Feb 18,1990, Durham

Feb 1,1990-Mar 2,1990, Saskatoon

Feb 9,1990-Feb 18,1990, Saskatoon

Feb 10,1990-Feb 17,1990, Scott Base

Feb 11,1990-Feb 16,1990, Tromso

Feb 2,1990-Feb 21,1990, Tromso

(Arecibo ISR F-Region only plus power profiles of Ne in CDB)

Millstone ISR (kindat=13021), harmonics of neutral winds, and daytime values of the neutral winds

Millstone ISR (kindat=13022), harmonics of ion temperatures, and daytime values of the ion temperatures

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Feb 12-Feb 13, 1990 All Millstone LTCS (joint) data for this period
Feb 14-Feb 15, 1990 All Millstone LTCS (joint) data for this period
Feb 16-Feb 17, 1990 All Millstone LTCS (joint) data for this period

(EISCAT ISR ionospheric parameters only in CDB)

Sondrestrom ISR SRI CWINDS (kindat=15115) neutral winds

Feb 12-Feb 13, 1990 All Sonde revised data for this period
Feb 14-Feb 15, 1990 All Sonde revised data for this period
Feb 16-Feb 17, 1990 All Sonde revised data for this period

LTCS-5 (MLTCS-1) 14-20 Mar 1991 (Ap=6-13, F10.7=255)

Arecibo ISR (kindat=2021), daytime values of the neutral winds

Mar 15-Mar 16, 1991 All Arecibo data for this period
Mar 17-Mar 18, 1991 All Arecibo data for this period

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Mar 14-Mar 15, 1991 All Millstone LTCS (joint) data for this period
Mar 16-Mar 17, 1991 All Millstone LTCS (joint) data for this period
Mar 18-Mar 19, 1991 All Millstone LTCS (joint) data for this period
Mar 20-Mar 21, 1991 All Millstone LTCS (joint) data for this period
Mar 22-Mar 23, 1991 All Millstone LTCS (joint) data for this period

(EISCAT ISR ionospheric parameters only and Vector Vi (kinst/kindat=70/6312) in CDB)

Sondrestrom ISR SRI CWINDS (kindat=15115) neutral winds

Mar 14-Mar 15, 1991 All Sonde revised data for this period
Mar 16-Mar 17, 1991 All Sonde revised data for this period
Mar 18-Mar 19, 1991 All Sonde revised data for this period
Mar 20-Mar 21, 1991 All Sonde revised data for this period

LTCS-6 (MLTCS-2) 4-10 Dec 1991 (Ap=5-15, F10.7=213)

(Arecibo ISR not available in CDB)

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Dec 04-Dec 05, 1991 All Millstone LTCS (joint) data for this period
Dec 06-Dec 07, 1991 All Millstone LTCS (joint) data for this period
Dec 08-Dec 09, 1991 All Millstone LTCS (joint) data for this period
Dec 10-Dec 11, 1991 All Millstone LTCS (joint) data for this period

(EISCAT ISR ionospheric parameters only and Vector Vi (kinst/kindat=70/6118) in CDB)

Sondrestrom ISR SRI CWINDS (kindat=15115) neutral winds and revised neutral winds (kindat=30024)

Dec 04-Dec 05, 1991 All Sonde revised data for this period
Dec 06-Dec 07, 1991 All Sonde revised data for this period
Dec 08-Dec 09, 1991 All Sonde revised data for this period
Dec 10-Dec 11, 1991 All Sonde revised data for this period

LTCS-7 (MLTCS-3) 30 Mar - 3 Apr 1992 (Ap=6-32, F10.7=176)

Arecibo ISR (kindat=2021), daytime values of the neutral winds

Mar 30-Mar 31, 1992 All Arecibo data for this period
Apr 01-Apr 02, 1992 All Arecibo data for this period
Apr 03, 1992 All Arecibo data for this period

(Millstone ISR not available in CDB, but does exist and needs re-analysis)

(EISCAT ISR ionospheric parameters only and Vector Vi (kinst/kindat=70/6120) in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Mar 30-Mar 31, 1992 All Sonde revised data for this period
Apr 01-Apr 02, 1992 All Sonde revised data for this period

LTCS-8 (MLTCS-4) 30 Jul - 5 Aug 1992 (Ap=4-35, F10.7=123)

Arecibo ISR (kindat=2021), daytime values of the neutral winds

Jul 30-Jul 31, 1992 All Arecibo data for this period
Aug 01-Aug 02, 1992 All Arecibo data for this period
Aug 03-Aug 04, 1992 All Arecibo data for this period
Aug 05, 1992 All Arecibo data for this period

(Millstone ISR not available in CDB, but does exist and needs re-analysis)

(EISCAT ISR ionospheric parameters only and Vector Vi (kinst/kindat=70/6120) in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Jul 30-Jul 31, 1992 All Sonde revised data for this period
Aug 01-Aug 02, 1992 All Sonde revised data for this period
Aug 03-Aug 04, 1992 All Sonde revised data for this period
Aug 05-Aug 06, 1992 All Sonde revised data for this period

LTCS-9 (MLTCS-5) 20-30 Jan 1993 (Ap=4-25, F10.7=105)

Arecibo ISR (kindat=2021), daytime values of the neutral winds

Jan 20-Jan 21, 1993 All Arecibo data for this period
Jan 22-Jan 23, 1993 All Arecibo data for this period
Jan 24-Jan 25, 1993 All Arecibo data for this period
Jan 26-Jan 27, 1993 All Arecibo data for this period
Jan 28-Jan 29, 1993 All Arecibo data for this period

(Millstone ISR not available in CDB, but does exist and needs re-analysis)

(EISCAT Tromso (72) ISR ionospheric parameters at lower altitudes only and Vector Vi (kinst/kindat=70/6210) in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Jan 20-Jan 21, 1993 All Sonde revised data for this period
Jan 22-Jan 23, 1993 All Sonde revised data for this period
Jan 24-Jan 25, 1993 All Sonde revised data for this period
Jan 26-Jan 27, 1993 All Sonde revised data for this period
Jan 28-Jan 29, 1993 All Sonde revised data for this period
Jan 30-Jan 31, 1993 All Sonde revised data for this period

LTCS-10 (MLTCS-6) 9-18 Aug 1994 (Ap=4-27, F10.7=82)

(Arecibo ISR F-Region only and Vector Vi (kindat=2011) plus power profiles of Ne in CDB)

(Millstone ISR ionospheric parameters only in CDB)

(EISCAT VHF Tromso (74) ISR ionospheric parameters and ACFs at lower altitudes only in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Aug 10-Aug 11, 1994 All Sonde revised data for this period
Aug 12-Aug 13, 1994 All Sonde revised data for this period
Aug 14-Aug 15, 1994 All Sonde revised data for this period
Aug 16-Aug 17, 1994 All Sonde revised data for this period

LTCS-11 (MLTCS-7) 1-5 May 1995 (Ap=3-49, F10.7=71)

(Arecibo ISR F-Region only plus power profiles of Ne in CDB)

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

May 01-May 02, 1995 All Millstone LTCS (joint) data for this period
May 03-May 04, 1995 All Millstone LTCS (joint) data for this period
May 05-May 06, 1995 All Millstone LTCS (joint) data for this period

(EISCAT VHF Tromso (74) ISR ionospheric parameters and ACFs at lower altitudes only in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

May 01-May 02, 1995 All Sonde revised data for this period
May 03-May 04, 1995 All Sonde revised data for this period
May 05-May 06, 1995 All Sonde revised data for this period

LTCS-12 (MLTCS-8) 23-27 Oct 1995 (Ap=3-19, F10.7=74)

(Arecibo ISR F-Region only plus power profiles of Ne in CDB)

(Millstone ISR ionospheric parameters only in CDB)

(EISCAT VHF Tromso (74) ISR ionospheric parameters and ACFs at lower altitudes only in CDB)

(Sondrestrom ISR Vector Vi and ionospheric parameters only in CDB)

LTCS-13 (MLTCS-9) 19-22 Mar 1996 (Ap=15-38, F10.7=70)

(Arecibo ISR not available in CDB)

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Mar 19-Mar 20, 1996 All Millstone LTCS (joint) data for this period
Mar 21-Mar 22, 1996 All Millstone LTCS (joint) data for this period

(EISCAT Kiruna and Tromso (71 and 72) ISR ionospheric parameters and ACFs at lower altitudes only in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Mar 19-Mar 20, 1996 All Sonde revised data for this period
Mar 21-Mar 22, 1996 All Sonde revised data for this period

(EISCAT Svalbard Radar ISR not available in CDB)

LTCS-14 (MLTCS-10) 8-12 Oct 1996 (Ap=8-20, F10.7=67)

(Arecibo ISR not available in CDB)

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Oct 08-Oct 09, 1996 All Millstone LTCS (joint) data for this period
Oct 10-Oct 11, 1996 All Millstone LTCS (joint) data for this period
Oct 12-Oct 13, 1996 All Millstone LTCS (joint) data for this period

(EISCAT Tromso (72) ISR ionospheric parameters and ACFs at lower altitudes only and Vector Vi (kinst/kindat=70/6210) in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Oct 08-Oct 09, 1996 All Sonde revised data for this period
Oct 10-Oct 11, 1996 All Sonde revised data for this period
Oct 12-Oct 13, 1996 All Sonde revised data for this period

(EISCAT Svalbard Radar ISR not available in CDB)

LTCS-15 (MLTCS-11) 6-10 Jan 1997 (Ap=3-32, F10.7=71)

(Arecibo ISR F-Region only in CDB)

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Jan 06-Jan 07, 1997 All Millstone LTCS (joint) data for this period
Jan 08-Jan 09, 1997 All Millstone LTCS (joint) data for this period
Jan 10-Jan 11, 1997 All Millstone LTCS (joint) data for this period

(EISCAT Tromso (72) ISR ionospheric parameters and ACFs at lower altitudes only and Vector Vi (kinst/kindat=70/6210) in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Jan 06-Jan 07, 1997 All Sonde revised data for this period
Jan 08-Jan 09, 1997 All Sonde revised data for this period
Jan 10-Jan 11, 1997 All Sonde revised data for this period

(EISCAT Svalbard Radar ISR not available in CDB)

LTCS-16 (MLTCS-12) 23-27 Jun 1997 (Ap= , F10.7= )

(Arecibo ISR not available in CDB)

(Millstone ISR ionospheric parameters only in CDB)

(EISCAT UHF (72)Tromso ISR ionospheric parameters and ACFs at lower altitudes only in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Jun 23-Jun 24, 1997 All Sonde revised data for this period
Jun 25-Jun 26, 1997 All Sonde revised data for this period
Jun 27-Jun 28, 1997 All Sonde revised data for this period

(EISCAT Svalbard Radar ISR not available in CDB)

LTCS-17 (MLTCS-13) 23-27 Mar 1998 (Ap=6-16, F10.7=114)

(Arecibo ISR not available in CDB)

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Mar 23-Mar 24, 1998 All Millstone LTCS (joint) data for this period
Mar 25-Mar 26, 1998 All Millstone LTCS (joint) data for this period
Mar 27-Mar 28, 1998 All Millstone LTCS (joint) data for this period

(EISCAT UHF (72) and VHF (74) Tromso ISR ionospheric parameters and ACFs at lower altitudes only and Vector Vi (kinst/kindat=70/6210) in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Mar 23-Mar 24, 1998 All Sonde revised data for this period
Mar 25-Mar 26, 1998 All Sonde revised data for this period
Mar 27-Mar 28, 1998 All Sonde revised data for this period

(EISCAT Svalbard Radar ISR not available in CDB)

LTCS-18 (MLTCS-14) 21-25 Sep 1998 (Ap=7-117, F10.7=140)

(Arecibo ISR not available in CDB)

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Sep 21-Sep 22, 1998 All Millstone LTCS (joint) data for this period
Sep 23-Sep 24, 1998 All Millstone LTCS (joint) data for this period
Sep 25-Sep 26, 1998 All Millstone LTCS (joint) data for this period

(EISCAT UHF Tromso (72), Sodankyla (73) and VHF (74) Tromso ISR ionospheric parameters and ACFs at lower altitudes only and Vector Vi (kinst/kindat=70/6210) in CDB)

(Sondrestrom ISR not available in CDB)

(EISCAT Svalbard Radar ISR not available in CDB)

LTCS-19 (MLTCS-15) 2-12 Mar 1999 (Ap=11-34, F10.7=128)

Arecibo ISR (kindat=2021), daytime values of the neutral winds

Mar 08-Mar 09, 1999 All Arecibo data for this period
Mar 10-Mar 11, 1999 All Arecibo data for this period

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Mar 09-Mar 10, 1999 All Millstone LTCS (joint) data for this period
Mar 11-Mar 12, 1999 All Millstone LTCS (joint) data for this period

(EISCAT Kiruna and Tromso (71 and 72) ISR ionospheric parameters and ACFs at lower altitudes only and Vector Vi (kinst/kindat=70/6210) in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Mar 08-Mar 09, 1999 All Sonde revised data for this period
Mar 10-Mar 11, 1999 All Sonde revised data for this period
Mar 12-Mar 13, 1999 All Sonde revised data for this period

(EISCAT Svalbard Radar ISR not available in CDB)

LTCS-20 (MLTCS-16) 12-14 Oct 1999 (Ap= , F10.7= )

Arecibo ISR (kindat=2021), daytime values of the neutral winds

Oct 12-Oct 13, 1999 All Arecibo data for this period

Millstone ISR (kindat=13211), E region neutral winds using F regions electric fields from efwind program

Millstone ISR (kindat=13212), F region ion drifts and electric fields from efwind program

Oct 12-Oct 13, 1999 All Millstone LTCS (joint) data for this period
Oct 14-Oct 15, 1999 All Millstone LTCS (joint) data for this period

(EISCAT ISR not available in CDB)

Sondrestrom ISR revised neutral winds (kindat=30024)

Oct 12-Oct 13, 1999 All Sonde revised data for this period
Oct 14-Oct 15, 1999 All Sonde revised data for this period

(EISCAT Svalbard Radar ISR not available in CDB)

LTCS-21 (MLTCS-17) 25-28 Sep 2000 (Ap= , F10.7= )

Millstone ISR (kindat=13210), E reg neutral and ion winds using F-reg electric fields from efwind program

Sep 25-Sep 26, 2000 All Millstone LTCS (joint) data for this period
Sep 27-Sep 28, 2000 All Millstone LTCS (joint) data for this period

Sondrestrom ISR revised neutral winds (kindat=30024)

Sep 24-Sep 25, 2000 All Sonde revised data for this period
Sep 26-Sep 27, 2000 All Sonde revised data for this period
Sep 28-Sep 29, 2000 All Sonde revised data for this period

LTCS-22 (MLTCS-18) 11-14 Dec 2000 (Ap= , F10.7= )

Millstone ISR (kindat=13210), E reg neutral and ion winds using F-reg electric fields from efwind program

Dec 11-Dec 12, 2000 All Millstone LTCS (joint) data for this period
Dec 13-Dec 14, 2000 All Millstone LTCS (joint) data for this period

Sondrestrom ISR revised neutral winds (kindat=30024)

Dec 11-Dec 12, 2000 All Sonde revised data for this period
Dec 13-Dec 14, 2000 All Sonde revised data for this period
Dec 15-Dec 16, 2000 All Sonde revised data for this period

LTCS-23 (MLTCS-19) 11-15 Jul 2001 (Ap= , F10.7= )

Sondrestrom ISR revised neutral winds (kindat=30024)

Jul 11-Jul 12, 2001 All Sonde revised data for this period
Jul 13-Jul 14, 2001 All Sonde revised data for this period
Jul 15-Jul 16, 2001 All Sonde revised data for this period

LTCS-24 (MLTCS-20) 16-20 Sep 2001 (Ap= , F10.7= )

Sondrestrom ISR revised neutral winds (kindat=30024)

Sep 16-Sep 17, 2001 All Sonde revised data for this period
Sep 18-Sep 19, 2001 All Sonde revised data for this period
Sep 20-Sep 21, 2001 All Sonde revised data for this period

LTCS-25 (SELT-1, MLTCS-21) 15-17 Apr 2002 (Ap= , F10.7= )

Arecibo ISR (kindat=2021), daytime values of the neutral winds

Apr 15-Apr 16, 2002 All Arecibo data for this period
Apr 17, 2002 All Arecibo data for this period

Sondrestrom ISR SRI CWINDS (kindat=15115) neutral winds and revised neutral winds (kindat=30024)

Apr 15-Apr 16, 2002 All Sonde revised data for this period
Apr 17-Apr 18, 2002 All Sonde revised data for this period

Sondrestrom ISR (kindat=15115) neutral winds (~90-125km)

The Sondrestrom ISR (kindat=15115) has neutral winds and temperatures and ion drifts in the lower thermosphere (~90-125km) for several periods that were committed to LTCS runs, and to other periods of high winds when the LTCS mode was used to limit movements of the equipment. The code that finds the E-region winds is called "cwinds", and many other dates beyond LTCS-25 have LTCS plots available in the regular Sondrestrom ISR web page.

Chatanika ISR (kindat=15115) neutral winds (~90-125km)

The Chatanika ISR (kindat=15115) has neutral winds and temperatures and ion drifts in the lower thermosphere (~90-125km).

11 Aug 1976

22 Dec 1976

15-16 Feb 1977

15-16 Mar 1977

19-20 Apr 1977

18-19 May 1977

16 Jun 1977

23 Nov 1977

18 Jan 1978

8 Feb 1978

8 Mar 1978

12 Apr 1978

10 May 1978

7 Jun 1978

12 Jul 1978

1-2 Aug 1978

6 Sep 1978

18-19 Oct 1978

13 Dec 1978

14 Feb 1979

21 Mar 1979

18 Apr 1979

20 Jun 1979

17-18 Oct 1979

21-22 Nov 1979

19 Dec 1979

16 Jan 1980

13 Feb 1980

19 Mar 1980

20 Mar 1980

16 Apr 1980

14 May 1980

11 Jun 1980

9 Jul 1980

13-14 Aug 1980

10 Sep 1980

8 Oct 1980

10-12 Oct 1980

12 Nov 1980

10-11 Dec 1980

14 Jan 1981

4 Feb 1981

4 Mar 1981

1 Apr 1981

13 May 1981

14-15 Jul 1981

30 Sep 1 Oct 1981

28-29 Oct 1981

18 Nov 1981

15-17 Dec 1981

19-20 Jan 1982

16-17 Feb 1982

-Revised 01 May 2007 by emery@ucar.edu