国际地磁参考场
- 网络international geomagnetic reference field;igrf
-
模型(BJ)和国际地磁参考场模型(IGRF)从理论上计算并分析了1690年以来地磁场能量在地球内部的分布及长期变化。
Jackson ( BJ ) and the International Geomagnetic Reference Field ( IGRF ), the distribution of geomagnetic field and its secular variation going back to 1690 year are calculated and analyzed theoretically .
-
利用BJ模型和国际地磁参考场(IGRF)模型资料,研究了地球主磁场的周期特点。
Based on the data of the Bloxham & Jackson Geomagnetic model ( BJ for short ) and the International Geomagnetic Reference Field ( IGRF ), the features of the geomagnetic main field periodicity are discussed .
-
用PC-1500型袖珍式计算机计算国际地磁参考场的方法和程序设计
A method and program design for calculation of international geomagnetic field by using PC-1500 type pocket-size computer
-
根据最新公布的第7代国际地磁参考场模型(IGRF),用4种方法计算1900~2000年的地球磁场的西漂,分析西漂的时间变化规律和不同纬度圈的漂移特点。
Based on the seventh generation of International Geomagnetic Reference Field models , the westward drift of geomagnetic field for 1900 & 2000 were calculated by using four methods and analyzed the variation features of with time and different latitudes .
-
IGRF(国际地磁参考场)是有关地球主磁场与长期变化的模型,IGRF的误差主要来源于:忽略外源场、球谐级数的截断、台站分布的不均匀、测量、忽略地壳磁异常场等。
IGRF ( International Geomagnetic Reference Field ) are the models of geomagnetic main field and secular variation . The IGRF errors are from neglecting external field , truncation level of the spherical harmonic series , observatory distribution , measurement , and neglecting the crust geomagnetic anomalies .
-
第七代国际地磁参考场的检验与评价
Examination and evaluation of international geomagnetic field for the seventh generation
-
国际地磁参考场在中国大陆地区的误差分析
Analysis of the international geomagnetic reference field error in the China Continent
-
国际地磁参考场资料在我国得到广泛应用。
The data of international geomagnetic reference field are widely used in China .
-
国际地磁参考场及其计算
International Geomagnetic Reference Field & Computation
-
地球磁场由国际地磁参考场和磁力异常场叠合建立。
Earth 's magnetic field is composition of International Geomagnetic Reference Field and magnetic anomaly field .
-
国际地磁参考场与局部地磁场模型的研究,具有深远的学科意义与巨大的实用价值。
The researches on international geomagnetic reference field model and regional geomagnetic field model have profound scientific significance and are of great practical value .
-
针对现有地磁场模型精度偏低、模型边界效应等问题,深入分析了传统补充国际地磁参考场值的缺陷。
Taking aim at lower precision and boundary effect of the current region geomagnetic field model , the shortage of appending the IGRF data to the regional boundary was analyzed deeply .
-
中国海域地球磁场模式为舰船消磁而建,由国际地磁参考场与网格节点描述的地壳场迭合形成。
The geomagnetic field model in China offshore area is built for ship 's demagnetization , which is overlapped by international geomagnetic reference field and the earth 's crust field described by the grid node .