Dali Kong
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Modeling of the <i>Sq</i> geomagnetic field induced by tidal oscillations of the atmosphere Open
The Sq (solar quiet) geomagnetic field is generated by the electric currents in the E-region of the ionosphere, driven by the atmospheric tides. It is a critical part of high-precision geomagnetic field modeling. Based on the classic therm…
Jupiter's Coordinate System Transformations: A Guide for Future Studies of the Jovian System Open
The Juno mission, launched in 2011, has significantly advanced our understanding of Jupiter's gravitational field, the solar wind and interplanetary conditions along its orbit, the evolution of Jupiter's high‐latitude magnetosphere and aur…
A joint investigation of Saturn’s deep zonal flow via its gravitational field and Ohmic dissipation Open
The Cassini Grand Finale provided a unique opportunity to study Saturn’s deep zonal flow. In this paper, we present a comprehensive deep zonal flow model for Saturn using a joint inversion of observed gravity and zonal flow-induced Ohmic d…
The onset of thermal inertial convection in a rapidly rotating oblate spheroidal liquid core Open
Motivated by its applications to the core dynamics in the Earth and other Planets, the problem of convective instability in rapidly rotating, self-gravitating fluid bodies has been widely modeled in spheres or spherical shells, which impli…
Preface to the Special Issue on the Macau Science Satellite-1 Mission Open
The Macau Science Satellite-1 (MSS-1) mission (https://mss.must.edu.mo/) is marked by a new high-precision constellation of satellites that will survey the Earth’s geomagnetic and space environment. MSS-1 consists of two satellites that ar…
View article: A New Technique to Diagnose the Geomagnetic Field Based on a Single Circular Current Loop Model
A New Technique to Diagnose the Geomagnetic Field Based on a Single Circular Current Loop Model Open
The geomagnetic field originates from interior dynamo currents and can be approximated well by a simple dipolar field in the vicinity of Earth's surface. Given that the dipolar field is induced by a current loop, it is possible to invert t…
Possible approach to detecting the mysterious Saturnian convective dynamo through gravitational sounding Open
Context. Planetary dynamo research is mathematically and numerically difficult. Forward calculations are numerically expensive and subject to much uncertainty in key magnetohydrodynamics parameters. For a gaseous planet such as Saturn, eve…
New technique to diagnose the geomagnetic field based on the single circular current loop model Open
A quick and effective technique is developed to diagnose the geomagnetic dipole field based on an unstrained single circular current loop model. In comparsion with previous studies, this technique is able to separate and solve the loop par…
Interpreting the Equatorially Antisymmetric Gravitational Field of Saturn Measured by the Cassini Grand Finale Open
The equatorially antisymmetric gravitational field of Saturn, represented by the four gravitational coefficients J 3 , J 5 , J 7 , and J 9 , has been measured by the Cassini Grand Finale. Since the rotational distortion and the internal st…
Lower-order zonal gravitational coefficients caused by zonal circulations inside gaseous planets: Convective flows and numerical comparison between modeling approaches Open
To infer the internal equilibrium structure of a gaseous planet, especially the equation of state (EOS) and size of its inner core, requires accurate determination of lower-order zonal gravitational coefficients. Modeling of the gravitatio…
Progress and Perspective of Space VLBI in China Open
Space Very Long Baseline Interferometry (VLBI) has unique applications in high-resolution imaging of fine structure of astronomical objects and high-precision astrometry, owing to the key long space-Earth or space-space baselines beyond th…
Origin of Jupiter’s cloud-level zonal winds remains a puzzle even after Juno Open
Significance How the Jovian cloud-level zonal winds are generated and maintained has been a major scientific puzzle for decades. There are two main contenders to explain the origin of the winds: ( i ) They are maintained and generated by d…
The effect of the equatorially symmetric zonal winds of Saturn on its gravitational field Open
The penetration depth of Saturn's cloud-level winds into its interior is unknown. A possible way of estimating the depth is through measurement of the effect of the winds on the planet's gravitational field. We use a self-consistent pertur…
A non-contact vision-based system for multipoint displacement monitoring in a cable-stayed footbridge Open
This is the author accepted manuscript. The final version is available from Wiley via the DOI in this record.
Shape, Internal Structure, Zonal Winds, and Gravitational Field of Rapidly Rotating Jupiter-Like Planets Open
High-precision gravitational measurements by orbiting spacecraft provide a means of probing the structures, fluid motions, and convective dynamos in the interiors of the rapidly rotating outer planets. Here, the classical theory of rotatin…
A FULLY SELF-CONSISTENT MULTI-LAYERED MODEL OF JUPITER Open
We construct a three-dimensional, fully self-consistent, multi-layered, non-spheroidal model of Jupiter consisting of an inner core, a metallic electrically conducting dynamo region, and an outer molecular electrically insulating envelope.…
Using Jupiter’s gravitational field to probe the Jovian convective dynamo Open
Convective motion in the deep metallic hydrogen region of Jupiter is believed to generate its magnetic field, the strongest in the solar system. The amplitude, structure and depth of the convective motion are unknown. A promising way of pr…