CAJ | 학술논문

利用南极地区40多个GPS跟踪站2010年全年的实测数据，实现了极区电离层TEC建模，对多项式模型、广义三角级数函数模型、低阶球谐函数模型、改进的球谐函数模型以及球冠谐函数模型等五种电离层经验模型进行了比较，并评估了其在极区的适用性情况。结果表明，各个模型在极区都可以取得比较好的拟合精度，残差均值在0．1 TECU以内，均方根误差在2 TECU以内。
이용남겁지구40다개GPS근종참2010년전년적실측수거，실현료겁구전리층TEC건모，대다항식모형、엄의삼각급수함수모형、저계구해함수모형、개진적구해함수모형이급구관해함수모형등오충전리층경험모형진행료비교，병평고료기재겁구적괄용성정황。결과표명，각개모형재겁구도가이취득비교호적의합정도，잔차균치재0．1 TECU이내，균방근오차재2 TECU이내。
Total electron content (TEC)were derived from GPS measurements collected from more than 40 continuously operating stations in Antarctica during 201 0,and then were modeled using five commonly used regional models:the poly model (POLY ),the generalized trigonometric series function model (GTSF ),the low-degree spherical harmonic function model (LSH),the adjusted spherical harmonic function model (ASHF)and spherical cap har-monic analysis (SCHA).The five models were compared with assessing their applicability in polar regions.The re-sults showed that all five models performed well in Antarctica,with 0.1 TECU of residual mean value and 2 TECU of root mean square error.