论文信息 - Regional ionosphere map over Japanese Islands

Regional ionosphere map over Japanese Islands

Based on the high time and spatial resolution total electron content (TEC) data, which is estimated from the phase and code observables obtained by using GPS (Global Positioning System) Earth Observation Network (GEONET), the TEC distribution and its time variation over Japanese Islands are scaled into 0.5° × 0.5° grid data for each 10 minutes. The TEC daily map time series are arranged in an array to show the TEC evolution. Based on the spherical harmonics expansion of global ionospheric TEC model (GIM), which is estimated from global GPS observation, the TEC maps are expanded firstly through as high as 60 degrees and orders for a spherical harmonic function as a regional ionosphere map (RIM). The evolution history of medium scale traveling ionospheric disturbances (MSTIDs), i.e. polarward intense TEC enhancement and pre-noon rapid irregular fluctuations near the geomagnetic equator, are identified and confirmed in a quiet geomagnetic period.

[1] Anthony J. Mannucci,et al. Subdaily northern hemisphere ionospheric maps using an extensive network of GPS receivers , 1995 .

[2] Leos Mervart,et al. Global and regional ionosphere models using the GPS double difference phase observable , 1996 .

[3] T. Iwabuchi,et al. A comparison of Global Positioning System retrieved precipitable water vapor with the numerical weather prediction analysis data over the Japanese Islands , 2000 .

[4] B. Kvasov. Cubic Spline Interpolation , 2000 .

[5] William H. Press,et al. Numerical Recipes in Fortran 77 , 1992 .

[6] Takuya Tsugawa,et al. A new technique for mapping of total electron content using GPS network in Japan , 2002 .

[7] Shoichiro Fukao,et al. High resolution mapping of TEC perturbations with the GSI GPS Network over Japan , 1998 .

[8] S. Musman,et al. Imaging spread‐F structures using GPS observations at Alcântara, Brazil , 1997 .

[9] L. A. Leonovich,et al. The use of the international GPS network as the global detector (GLOBDET) simultaneously observing sudden ionospheric disturbances , 2000 .

[10] L. A. Leonovich,et al. Observation of large-scale traveling ionospheric disturbances of auroral origin by global GPS networks , 2000 .