Results 81 to 90 of about 1,485 (184)

High-resolution bathymetries and shorelines for the Great Lakes of the White Nile basin. [PDF]

Sci Data, 2022
Hamilton SE, McGehee DD, Nyamweya C, Ongore C, Makori A, Mangeni-Sande R, Kagoya E, Kashindye BB, Elison M, Shaban SS, Mlaponi E, Mwainge VM, Ocaya H, Krach N, Ogari Z, Mugeni B, Taabu-Munyaho A, Kayanda R, Muhumuza E, Natugonza V.   +19 more
europepmc   +1 more source

Science opportunities from the Topex/Poseidon mission [PDF]

The U.S. National Aeronautics and Space Administration (NASA) and the French Centre National d'Etudes Spatiales (CNES) propose to conduct a Topex/Poseidon Mission for studying the global ocean circulation from space.
Fu, L. L., Lefebvre, M., Stewart, R.
core   +1 more source

Application of Geodesy to Geodynamics: 7. Surface Gravity and New Techniques for the Geophysical Interpretation of Gravity and Geoid Undulation

Eos, Transactions American Geophysical Union, 1979
We are currently getting information about the earth's gravity field through potential coefficients derived from satellite data, from interpretation of altimeter data, and from direct observations on the surface of the Earth. In this session direct observational instrumentations and techniques, both relative and absolute, were discussed, as well as ...
openaire   +1 more source

Geodetic analysis of Skylab altimetry preliminary data - SL/2 EREP pass 9 [PDF]

The author has identified the following significant results. The analysis was based on a time series intrinsic relationship between the satellite ephemeris, altimeter measured ranges, and the corresponding a priori values of subsatellite geoidal heights.
Fubara, D. M. J., Mourad, A. G.
core   +1 more source

Testing of Homogeneity of Coordinates of Various Permanent GNSS Reference Stations Networks of the Republic of Serbia According to the Common Requirements for Proving Competence. [PDF]

Sensors (Basel), 2022
Gučević J, Vasović Šimšić O, Delčev S, Kuburić M.   +3 more
europepmc   +1 more source

The application of Skylab altimetry to marine geoid determination [PDF]

The author had identified the following significant results. The major results can be divided broadly into two groups. One group is concerned with the effects of errors inherent in the various input data, such as the orbit emphemeris, a priori geoid etc.
Fubara, D. M., Gopalapillai, S., Kuhner, M., Mourad, A. G.   +3 more
core   +1 more source

Multi-Sensor HR Mass Data Models toward Multi-Temporal-Layered Digital Twins: Maintenance, Design and XR Informed Tour of the Multi-Stratified Appian Way (PAAA). [PDF]

Sensors (Basel), 2023
Brumana R, Quilici S, Oliva L, Previtali M, Gabriele M, Stanga C.   +5 more
europepmc   +1 more source

Mean gravity anomalies and sea surface heights derived from GEOS-3 altimeter data [PDF]

Approximately 2000 GEOS-3 altimeter arcs were analyzed to improve knowledge of the geoid and gravity field. An adjustment procedure was used to fit the sea surface heights (geoid undulations) in an adjustment process that incorporated cross-over ...
Rapp, R. H.
core   +1 more source

Heights, the Geopotential, and Vertical Datums [PDF]

, 2000
Technical Report. Ohio Sea Grant Development Program, NOAA. Grant No. NA86RG0053 (R/CE-7-PD). "Modern Vertical Datums and Lake Level".This report reviews the fundamental definitions of heights and vertical datums, specifically motivated by the modern ...
Jekeli, Christopher
core  

Global detailed gravimetric geoid [PDF]

A global detailed gravimetric geoid has been computed by combining the Goddard Space Flight Center GEM-4 gravity model derived from satellite and surface gravity data and surface 1 deg-by-1 deg mean free air gravity anomaly data.
Marsh, J. G., Vincent, S.
core   +1 more source