Results 91 to 100 of about 537 (162)

Definitive IGRF models for 1945, 1950, 1955, and 1960.

Journal of geomagnetism and geoelectricity, 1988
Definitive internal geomagnetic field models are obtained for the epochs 1945, 1950, 1955, and 1960, with the solution including local biases for the fixed observatories. In order to derive a priori models for the epochs, the International Geomagnetic Reference Field (12/83) model (based on Magsat data) was projected backward in time using a spline fit
LANGEL, R. A., BARRACLOUGH, D. R., KERRIDGE, D. J., GOLOVKOV, V. P., SABAKA, T. J., ESTES, R. H.   +5 more
openaire   +2 more sources

Attitude Determination of Micro-Satellite Using Geomagnetism and Magnetometer Data [PDF]

Journal of Astronomy and Space Sciences, 1992
Geomagnetic data from 3-axis magnetometer and the IGRF model (tilted-eccentric dipole model) were used to determine the attitude of a satellite. We compared the values of the geomagnetic model with the magnetometer data and two attitude angles, called α ...
Jae-Ho Seok, Kyu-Hong Choi
doaj  

Geomagnetic cutoff rigidity in neutron monitor locations

Solar-Terrestrial Physics
Neutron monitors (NMs), located at different points on the planet, allow us to study the time, energy, and angular characteristics of galactic and solar particle fluxes.
Kruchinin Pavel, Siruk Stepan, Mayorov Andrey, Malakhov Vitaly, Aleksandrin Sergey   +4 more
doaj   +1 more source

中国地区地磁场时空变化特征及模型精度评估

Dizhen xuebao
首先，基于第十三代国际地磁参考场（IGRF-13），以五年为时间间隔，对中国地区2000—2020年地磁场七个要素（X，Y，Z，H，D，I和F）的长期变化进行了系统的分析与探讨；其次，利用中国地磁台站的实际观测数据，研究了此期间地磁场逐年变化的特点，并以五年为间隔，探讨了1960—2020年中国地区内地磁场的变化模式；最后，通过分析IGRF-13和世界地磁模型WMM2020的计算结果与实际观测值之间的差值和均方根误差，深入探究了这些模型在中国地区的适用性差异。研究结果表明：2000—2020年间 ...
Xiuling Zhang, Tongli Wang
doaj   +1 more source

Recurrent neural network trained with the extended Kalman filter to forecast the geomagnetic secular variation for IGRF-14

Earth, Planets and Space
This study proposes a neural network approach for predicting the geomagnetic secular variation (SV) to improve the accuracy and efficiency of short-term geomagnetic forecasts. The International Geomagnetic Reference Field (IGRF), updated every five years,
Sho Sato, Shin’ya Nakano, Vincent Lesur, Masaki Matsushima, Takuto Minami, Hiroaki Toh   +5 more
doaj   +1 more source

Magnetic Field Maps for IGRF 1995

Journal of geomagnetism and geoelectricity, 1997
Macmillan, Susan, Barton, Charles E.
openaire   +2 more sources

Climatological predictions of the auroral zone locations driven by moderate and severe space weather events. [PDF]

Sci Rep, 2023
Maffei S, Eggington JWB, Livermore PW, Mound JE, Sanchez S, Eastwood JP, Freeman MP.   +6 more
europepmc   +1 more source

Pseudogravity Transformation of Total Magnetic Field Anomaly Data in Bur Ni Geureudong, Bener Meriah

Journal of Aceh Physics Society, 2018
Transformasi pseudogravitasi terhadap data anomali medan magnetik total telah dilakukan pada kawasan Bur Ni Geureudong. Data medan magnetik total diukur pada satu lintasan sepanjang 31 km.
Fhelisia Yolanda, Nazli Ismail, Gunawati Gunawati   +2 more
doaj  

Astudy and Analysis of Geomagnetic Field By using Model of International Geomagnetic Reference Field (IGRF- 2000)

Ibn Al-Haitham Journal for Pure and Applied Sciences, 2017
The IGRF model is the empirical representation of the Earth magnetic field recommended for scientific use by the International Association of Geomagnetism and Aeronomy(IAGA).
H. A A I- Mahdi
doaj  

Iron Oxide-Based Surface-Enhanced Raman Spectroscopy Bioprobes for Detecting Tumor Cells in Serous Effusion. [PDF]

Anal Chem
Guo J, Xu L, Wang J, Miao X, Xu X, Liu A, Sun L, Xie Y, Hou Z, Chen T, Wu A, Lin J, Jiang T.   +12 more
europepmc   +1 more source