Results 41 to 50 of about 1,485 (143)
Solar Force-free Magnetic Fields [PDF]
, 2012 The structure and dynamics of the solar corona is dominated by the magnetic field. In most areas in the corona magnetic forces are so dominant that all non-magnetic forces like plasma pressure gradient and gravity can be neglected in the lowest order ...
Sakurai, Takashi, Wiegelmann, Thomas
core +2 more sources
Earth, Planets and Space, 2020 We developed a refined gravimetric geoid model for Japan on a 1 × 1.5 arc-minute (2 km) grid from a GOCE-based satellite-only global geopotential model and a regional gravity field model updated in this study.
Koji Matsuo, Yuki Kuroishi
doaj +1 more source
Statistical study of magnetic non-potential measures in confined and eruptive flares [PDF]
, 2018 Using the HMI/SDO vector magnetic field observations, we studied the relation of degree of magnetic non-potentiality with the observed flare/CME in active regions.
Doddamani, V. H. +3 more
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Geodesy and CartographyThe Illizi region is an important petroleum zone in Algeria, where various seismic surveys have been conducted. The merging of adjacent surveys is not possible due to incompatible data linked to the geodetic networks.
Mahdi Haddad, Mounia Gahlouz
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Evaluation of the geopotential value W0LVD of China
Geodesy and Geodynamics, 2017 Estimation of the zero-height geopotential value W0LVD for the CVD (China Vertical Datum) plays a fundamental role in the connection of traditional height reference systems into a global height system.
Lin He, Yonghai Chu, Nan Yu
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Polarization properties of turbulent synchrotron bubbles: an approach based on Chandrasekhar-Kendall functions [PDF]
, 2017 Synchrotron emitting bubbles arise when the outflow from a compact relativistic engine, either a Black Hole or a Neutron Star, impacts on the environment.
Bucciantini, N.
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Formula for the Chandler Period (Free Wobble of Planetary Bodies)
Geophysical Research Letters, Volume 52, Issue 8, 28 April 2025.Abstract If the rotational equilibrium of a planetary body is disturbed, the rotation pole responds with a cyclical motion. The duration of one cycle is referred to as the Chandler period, and, when viewed from space, the body wobbles. Because planets are not rigid, the wobble period differs from the Euler period by the factor 1−kX/kf $\left(1-{k}_ ...
V. Patočka, M. Walterová
wiley +1 more source
Recovery of potential using module values of its gradient. 1
Геофизический журнал, 1999 The history of the problem investigation is briefly described. Gravity is characterized. It is proven that no accurate boundary conditions can be deduced for any linear classical problem of the potential theory (including the problem of Stox ...
A. V. Chernyi, A. I. Yakimchik
doaj +1 more source
, 2012 The SDO/HMI instruments provide photospheric vector magnetograms with a high spatial and temporal resolution. Our intention is to model the coronal magnetic field above active regions with the help of a nonlinear force-free extrapolation code.
B. Inhester +43 more
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PHƯƠNG PHÁP CHUYỂN ĐỔI TỌA ĐỘ BẢN ĐỒ TỪ HỆ QUY CHIẾU INDIAN 1960 SANG VN 2000
Tạp chí Khoa học Đại học Cần Thơ, 2010 Nguồn bản đồ ở Miền Nam trước năm 1975 được xây dựng trên hệ INDIAN 1960. Từ năm 2001, việc quy định sử dụng hệ VN 2000 đặt ra nhu cầu chuyển đổi hệ quy chiếu qua lại giữa hai hệ này.
Trương Chí Quang +2 more
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