@inproceedings{oai:jaxa.repo.nii.ac.jp:00011600,
 author = {Ping, Jinsong and 松本, 晃治 and Ping, Jinsong and Matsumoto, Koji},
 book = {第4回宇宙科学シンポジウム, Proceedings of the 4th Space Science Symposium},
 month = {Aug},
 note = {The nadir ionospheric TEC is retrieved from TOPEX/POSEIDON (T/P) and JASON-1 along track altimetry database. After careful comparison, it is found that the nadir TEC and the zenith TEC from GIM, IRI is identical with each other in large scale, long term variation. Seasonal and 11 year periodical variations of the TEC difference between GIM and T/P can be identified. A difference about 1 to 2 TECU between T/P and Jason-1 TEC is noticed. Where, the IRI is not precise enough to calibrate the satellite altimetry data due to the poor spatial and time resolution. Around Japan Islands, the difference between GEONET TEC and Jason-1 shows both of the biases of Jason-1 and of the failed calibration if GEONET duel frequency GPS observables., 資料番号: AA0047899164},
 pages = {673--676},
 publisher = {宇宙航空研究開発機構宇宙科学研究本部, Institute of Space and Astronautical Science, Japan Aerospace Exploration Agency (JAXA/ISAS)},
 title = {Ionospheric TEC from T/P and Jason-1},
 year = {2004}
}