[IGSMAIL-3093]: [IGSMAIL-3091]: Geodesy and Meteorology session in EGS
Joachim.Feltens at esa.int
Joachim.Feltens at esa.int
Wed Nov 8 04:45:39 PST 2000
******************************************************************************
IGS Electronic Mail 08 Nov 05:00:52 PST 2000 Message Number 3093
******************************************************************************
Author: Joachim Feltens
subject: High-rate GPS-campaign.
Dr. Joachim Feltens Darmstadt, 8 November 2000
IGS Ionosphere Working Group Chairman
EDS at ESOC-FDD
Robert-Bosch-Strasse 5
D-64293 Darmstadt
GERMANY
e-mail: Joachim.Feltens at esa.int
Subject: High-rate GPS-campaign.
Dear IGS colleagues, dear colleagues from the ground stations,
As you all know, have now reached the solar maximum, and a lot of inte-
resting ionospheric phenomena at the polar caps and in the equatorial
region can be observed.
It is the first time that during a solar maximum ionospheric behavior can
be observed with the dense IGS/GPS ground station net. The ionosphere
scientists are thus very interested in the dual-frequency GPS tracking data
collected from the IGS sites. Since a lot of phenomena in the ionosphere
are short-lived (like travelling wave structures) and cannot be extracted
with the standard 30 sec sampling rate of IGS RINEX files, there is much
interest to collect during a dedicated IGS campaign high-rate GPS tracking
data, e.g. with 1 or 3 sec sampling rate. The current solar maximum is a
unique chance to establish such a high-rate tracking database which could
be subject for ionospheric analyses over years. High-rate GLONASS tracking
would also be welcome. - The IGS did run a similar campaign during the
solar eclipse on 11 August 1999.
I am, as chairman of the IGS Ionosphere Working Group, would thus like
to propose, together with Dr. Norbert Jakowski from DLR Neustrelitz, to
organize a dedicated IGS campaign. The duration of such a campaign
should be in the order of 3-5 days, e.g. in April/May 2001 and also
non-IGS stations, e.g. ionosondes, EISCAT, should participate. Concerning
the date when to run such a campaign, there are two possibilities:
1) A concrete date will be fixed quite early for which the ground stations
can then prepare, or
2) a date will be fixed short-termed after a large solar event (normally
the solar plasma needs then about 2 days to reach the Earth), i.e. the
ground stations will have a pre-warning time of some days only.
Since a fixed measuring campaign is much more easier to organize, we favor
item 1) at present for collecting further experience. Furthermore, this
enables us to co-ordinate this IGS-activity with other ionospheric obser-
vation programs or measuring campaigns. If the IGS community is interested
to carry out the proposed high-rate GPS measuring campaign, we will contact
the ionosphere community for defining a concrete campaign over 3-5 days.
There are three regions of interest which are in sequence of importance:
1) Northern Polar Cap, 2) Southern Polar Cap, 3) Equator. For your con-
venience I have put together a list of relevant stations I identfied:
Northern Polar Cap: latitude > +50 deg.
01) artu Arti/Russian Federation lat = 56.4
02) bili Bilibino/Russian Federation lat = 68.1
03) bor1 Borowiec/Poland lat = 52.1
04) chur Churchill/Canada lat = 58.8
05) fair Fairbanks/Alaska/U.S.A lat = 65.0
06) flin CFS Flin Flon/Canada lat = 54.7
07) hofn Hoefn/Iceland lat = 64.3
08) irkt Irkutsk/Russia lat = 52.2
09) joze Jozefoslaw/Poland lat = 52.1
10) kely Kangerlussuaq/Greenldand/Denmark lat = 67.0
11) kiru Kiruna/Sweden lat = 67.9
12) kodk Kodiak/Alaska/U.S.A. lat = 57.7
13) kosg Kootwijk/The Netherlands lat = 52.2
14) kstu Krasnoyrsk/Russia lat = 56.0
15) lama Olsztyn/Poland lat = 53.9
16) mag0 Magadan/Russian Federation lat = 59.6
17) mdvo Mendeleevo/Russia lat = 56.0
18) mets Kirkkonummi/Finland lat = 60.2
19) nril Norilsk/Russian Federation lat = 69.4
20) nvsk Novosibirsk/Russia lat = 54.8
21) nyal Ny-Alesund/Spitzbergen/Norway lat = 78.9
22) onsa Onsala/Sweden lat = 57.4
23) petp Petropavlovsk/Russian Federation lat = 53.1
24) pots Potsdam/Germany lat = 52.4
25) reyk Reykjavik/Iceland lat = 64.1
26) sch2 Schefferville/Canada lat = 54.8
27) spt0 Boras/Sweden lat = 57.7
28) thu1 Thule/Greenland/Denmark lat = 76.5
29) tixi Tixi/Russian Federation lat = 71.6
30) trom Tromsoe/Norway lat = 69.7
31) whit Whitehorse/Canada lat = 60.8
32) will Williams Lake/Canada lat = 52.2
33) wsrt Westerbork/The Netherlands lat = 52.9
34) wuhn Wuhan City/P.R. China lat = 30.5
35) yakz Yakutsk/Russian Federation lat = 62.0
36) yell Yellowknife/Canada lat = 62.5
37) zwen Zwenigorod/Russia lat = 55.7
Southern Polar Cap: latitude < -50 deg.
38) amun South Pole/Antarctica lat = -90.0
39) cas1 Casey/Antarctica lat = -66.3
40) dav1 Davis/Antarctica lat = -68.6
41) goug Gough Is./Tristan da Cunha/U.K. lat = -40.3
42) hob2 Hobart/Tasmania/Australia lat = -42.8
43) kerg Kerguelen Islands/France lat = -49.4
44) mac1 MacQuarie Island/New Zealand lat = -54.5
45) maw1 Mawson/Antarctica lat = -67.6
46) mcm4 McMurdo/Antarctica lat = -77.8
47) ohig O'higgins/Antarctica lat = -63.3
48) palm Palmer Station/Antarctica lat = -64.8
49) riog Rio Grande/Argentina lat = -53.8
50) syog East Ongle Island/Antarctica lat = -69.0
51) vesl Sanae IV/Antarctica lat = -71.7
Equator: -20 deg < latitude < +20 deg. , to account for the
geomagnetic equator, in South America stations were
taken down to lat = -30 deg and in East Asia sta-
tions were taken up to lat = + 30 deg.
52) areq Arequipa/Peru lat = -16.5
53) asc1 Ascension Island/U.K. lat = -8.0
54) bako Cibinong/Indonesia lat = -6.5
55) barb Bridgetown/Barbados lat = 13.1
56) bogt Bogota/Colombia lat = 4.6
57) braz Brasilia/Brazil lat = -15.9
58) coco Cocos Island/Australia lat = -12.2
59) cord Cordoba/Argentina lat = -31.7
60) cro1 Virgin Islands/U.S. lat = 17.8
61) darw Darwin/Australia lat = -12.8
62) dgar Diego Garcia Island/U.K. lat = -7.3
63) eisl Easter Island/Chile lat = -27.1
64) esti Esteli/Nicaragua lat = 13.1
65) fort Fortaleza/Brazil lat = -3.9
66) gala Galapagos Is./Ecuador lat = -0.7
67) guam Debedo/Guam lat = 13.6
68) guat Guatemala City/Guatemala lat = 14.6
69) igm0 Buenos Aires/Argentina lat = -34.6
70) iisc Bangalore/India lat = 13.0
71) jab1 Jabiru/Australia lat = -12.7
72) jama Kingston/Jamaica lat = 17.9
73) kayt Philippes lat = 14.0
74) kour Kourou/French Guyana lat = 5.3
75) kunm Kunming/P.R. China lat = 25.1
76) kwj1 Kwajalein Atoll/Marshall Is. lat = 8.7
77) lhas Lhasa/Tibet/P.R. China lat = 29.7
78) lpgs La Plata/Argentina lat = -34.9
79) mali Malindi/Kenya lat = -3.0
80) mana Managua/Nicaragua lat = 12.1
81) mkea Mauna Kea/Hawaii/U.S.A. lat = 19.8
82) moin Moin/Costa Rica lat = 9.9
83) nklg Libreville/Gabon lat = 0.4
84) ntus Singapore/Republic of Singapore lat = 1.3
85) pimo Quezon City/Phillipines lat = 14.6
86) riop Riobamba/Ecuador lat = -1.7
87) sant Santiago/Chile lat = -33.2
88) sey1 La Misere/Seychelles lat = -4.7
89) slor San Lorenzo/Honduras lat = 13.4
90) ssia San Salvador/El Salvador lat = 13.7
91) taiw Taipei/Taiwan lat = 25.0
92) tegu Tegucigalpa/Honduras lat = 14.1
93) thti Papeete/Tahiti lat = -17.6
94) tow2 Cape Ferguson/Australia lat = -19.3
95) tvst Philippines lat = 14.0
96) unsa Salta/Argentina lat = -24.7
97) ykro Yamoussoukro/Cote D'ivorie lat = 6.9
I suppose that the major limitation of the number of stations will be
the space needed at CDDIS to archive the data. During the last year's
solar eclipse campaign about 60 stations provided high-rate data over
one day and some also on the day before and after. So I am looking for
your answers and comments in order to get an impression whether such a
campaign should be restricted to region 1 only, or could be extended
for region 2 and eventually for region 3.
If you are responding me by e-mail, please send also a copy to
Norbert.Jakowski at dlr.de
Best regards Joachim Feltens
More information about the IGSMail
mailing list