Testing Stokes-Helmert geoid model computation on a synthetic gravity field: experiences and shortcomings
نویسندگان
چکیده
منابع مشابه
formulation of stokes-helmert boundary value problem using no topography space
to solve the geodetic boundary-value problem the gravity anomalies have to be continued from the earth's surface down onto the geoid surface. helmert’s gravity anomalies (multiplied by the geocentric radius) are harmonic above the geoid. it is thus possible to use them in the poisson solution of the inverse dirichlet boundary value problem to get their values on the geoid. the downward con...
متن کاملTesting Weak-Field Gravity
One of the most important problems in science today is the origin of \dark matter". Much of our understanding of the history and present state of the universe depends upon conjectures about the nature of dark matter. In some sense, our knowledge rests upon a \house of cards" which won't be buttressed until progress is made in identifying what dark matter represents. Most research today is found...
متن کاملdownward continuation of helmert gravity anomaly to precise determination of geoid in iran
the use of stokes boundary values problems for the determination of the geoid requires that gravity anomalies (as boundary values) are known on geoid (as boundary). while, the gravity observations are measured on the earth's surface, to obtain boundary data, the surface gravity anomalies does are downward from the terrain onto geoid. for downward continuation (dwc) of surface gravity anoma...
متن کاملInvestigation of the Efficiency of Multi-purpose Gravity Network of NCC to Precise Geoid Determination, Case Study: Northwest Area of Iran
The national height system of Iran, orthomertic height, is referred to geoid as the vertical datum. Consequently, the geoid has many important applications in engineering. The slow, laborious and expensive orthomertic heights can be obtained in sufficient accuracy level from geodetic height (derived by GNSS observations) and a precise geoidal height. Over the past two decades, the gravity divis...
متن کاملVirtual Field Trips: Synthetic Experiences and Learning
This demonstration involves discussion on, and interaction with, the outcome of a recent project headed by Dr. Janis Cannon-Bowers at the University of Central Florida. We will demonstrate our “Virtual Field Trip” interactive software that was designed to provide exposure to, and experience with, real-world contexts for grade school students. This effort focused on developing innovative teachin...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Studia Geophysica et Geodaetica
سال: 2013
ISSN: 0039-3169,1573-1626
DOI: 10.1007/s11200-012-0270-z