Zobrazeno 1 - 10
of 17
pro vyhledávání: '"Ulf J. Lindqwister"'
Autor:
Xiaoqing Pi, D. Muna, B. A. Iijima, Brian Wilson, Ian Harris, Anthony J. Mannucci, Ulf J. Lindqwister
Publikováno v:
Radio Science. 36:287-298
The Federal Aviation Administration (FAA) is implementing an aircraft navigation scheme for the United States using the Global Positioning System (GPS) L1 signal (1575.42 MHz). To achieve position accuracies of a few meters, sufficient to allow preci
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4e02ce04a9fd08d1a2156863676cee1
https://doi.org/10.1029/1999rs002428
https://doi.org/10.1029/1999rs002428
Autor:
Xiaoqing Pi, Anthony J. Mannucci, Brian Wilson, Byron Iijima, Ulf J. Lindqwister, Lawrence Sparks
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 61:1227-1236
Dual-frequency transmissions from the Global Positioning System satellites can be used to measure and map ionospheric total electron content (TEC) on global scales. Using data exclusively from ground-based GPS networks, global ionosphere mapping has
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4a9c98bf192c1120ec67bb55ade680ba
https://doi.org/10.1016/s1364-6826(99)00053-x
https://doi.org/10.1016/s1364-6826(99)00053-x
Autor:
Lawrence Sparks, M. J. Reyes, Ulf J. Lindqwister, Christian Ho, Brian Wilson, Byron Iijima, Anthony J. Mannucci, Ian Harris, Xiaoqing Pi
Publikováno v:
Journal of Atmospheric and Solar-Terrestrial Physics. 61:1205-1218
The accuracy of single-frequency ocean altimeters benefits from calibration of the total electron content (TEC) of the ionosphere below the satellite.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d409d5233e9c8b65b425f3bfe0a229d
https://doi.org/10.1016/s1364-6826(99)00067-x
https://doi.org/10.1016/s1364-6826(99)00067-x
Autor:
Xiaoqing Pi, Ulf J. Lindqwister, Brian Wilson, Christian Ho, Lawrence Sparks, B. A. Iijima, M. J. Reyes, Anthony J. Mannucci
Publikováno v:
Journal of Geophysical Research: Space Physics. 103:26409-26420
The global evolution of two major ionospheric storms, occurring on November 4, 1993, and November 26, 1994, respectively, is studied using measurements of total electron content (TEC) obtained from a worldwide network of ground-based GPS receivers. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fc03353b7614f838ee7212962b6b483d
https://doi.org/10.1029/98ja01237
https://doi.org/10.1029/98ja01237
Autor:
Xiaoqing Pi, Brian Wilson, Christian Ho, Anthony J. Mannucci, Ian Harris, Ulf J. Lindqwister, Lawrence Sparks, M. J. Reyes, Byron Iijima, Bruce T. Tsurutani
Publikováno v:
Geophysical Research Letters. 25:2589-2592
The ionospheric storm evolution process was monitored during the January 10, 1997 magnetic cloud event, through measurements of the inonospheric total electron content (TEC) from 150 GPS stations. The first significant response of the inonospheric TE
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1dbfe99a9a8bc817caa8bc3a57c962ff
https://doi.org/10.1029/98gl00539
https://doi.org/10.1029/98gl00539
Publikováno v:
Radio Science. 33:565-582
A worldwide network of receivers tracking the transmissions of Global Positioning System (GPS) satellites represents a new source of ionospheric data that is globally distributed and continuously available. We describe a technique for retrieving the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3932f57ce7b596128cc96c670b8648ae
https://doi.org/10.1029/97rs02707
https://doi.org/10.1029/97rs02707
Publikováno v:
Geophysical Research Letters. 24:2283-2286
A prototype system has been developed to monitor the instantaneous global distribution of ionospheric irregularities, using the worldwide network of Globa Positioning System (GPS) receivers. Case studies in this pape indicate that GPS receiver loss o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8276d7c064ca0b65545c2258e99ecd11
https://doi.org/10.1029/97gl02273
https://doi.org/10.1029/97gl02273
Publikováno v:
Radio Science. 32:1499-1512
Global ionospheric mapping (GIM) is a new and emerging technique for determining global ionospheric TEC (total electron content) based on measurements from a worldwide network of Global Positioning System (GPS) receivers. In this study, GIM accuracy
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fedd7bc7287495eac0c1827dd1ab9c46
https://doi.org/10.1029/97rs00580
https://doi.org/10.1029/97rs00580
Publikováno v:
Geophysical Research Letters. 23:3219-3222
For the first time, measurements from the Global Positioning System (GPS) worldwide network are employed to study the global ionospheric total electron content (TEC) changes during a magnetic storm (November 26, 1994). These measurements are obtained
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fd0e97c5725e983e8ff62c0875d3b3a6
https://doi.org/10.1029/96gl02763
https://doi.org/10.1029/96gl02763
Publikováno v:
Geophysical Research Letters. 19:845-848
Daily estimates of the earth's pole position have been obtained with measurements from a worldwide network of GPS receivers, obtained during the three week GIG '91 experiment in January-February 1991. For this short-term study, the GPS based polar mo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4f90c2dd0ce5edf42669b44946ffb1e2
https://doi.org/10.1029/92gl00576
https://doi.org/10.1029/92gl00576