Results 61 to 70 of about 1,948 (180)

Comparing recent geopotential models in Andalusia (Southern Spain) [PDF]

, 2006
This work focuses on the comparison between satellite-only and combined Global Geopotential Models (GGMs) derived from the CHAMP and GRACE satellite missions with land gravity anomalies, geoid undulations provided by the gravimetric geoid ...
Blázquez, B., Rodríguez Caderot, Gracia, Lacy de, María Clara, Gil, Antonio José   +3 more
core   +1 more source

Phcsoft: a Software Package for Computing Physical Height Changes From Grace Based Global Geopotential Models [PDF]

, 2020
Physical height changes play an important role in the modernization of national/international levelling networks in the discipline of geodesy. This paper represents a software package, named PHCSOFT (Physical Height Changes SOFTware) which allows to ...
Abbak, Ramazan Alpay, Zeray Öztürk, Emel   +1 more
core   +1 more source

Accuracy Evaluation of Geoid Heights in the National Control Points of South Korea Using High-Degree Geopotential Model

Applied Sciences, 2020
Precise geoid heights are not as important for understanding Earth’s gravity field, but they are important to geodesy itself, since the vertical datum is defined as geoid in a cm-level accuracy.
Kwang Bae Kim, Hong Sik Yun, Ha Jung Choi   +2 more
doaj   +1 more source

Introduction Pages, Nova Geodesia 6(2), 2026

Nova Geodesia
Nova Geodesia (https://novageodesia.ro), Issue 2, Volume 6, 2026: The papers published in this issue represent interesting novelties in different topics of geodetic science or related fields.
Paul Sestras
doaj   +1 more source

A global coupled Eulerian-Lagrangian model and 1 × 1 km CO2 surface flux dataset for high-resolution atmospheric CO2 transport simulations [PDF]

, 2012
We designed a method to simulate atmospheric CO2 concentrations at several continuous observation sites around the globe using surface fluxes at a very high spatial resolution.
Lukyanov, A, M. Rigby, Nisbet, Euan, Maksyutov, S., Tsuboi, K, Lowry, David, A. Lukyanov, Matsueda, H, A. Varlagin, Andres, R. J., Fisher, R. E., Nisbet, E., Sawa, Y., V. Valsala, Saito, M, Nisbet, EG, Lukyanov, A., Varlagin, A, Nisbet, E. G., Oda, T, T. Oda, Maksyutov, S, Valsala, V, Andres, R.J., Varlagin, A., R. Toumi, H. Matsueda, R. Zhuravlev, Fisher, R., Toumi, R, Oda, T., Fisher, RE, Ganshin, A., Sawa, Y, Toumi, R., E. G. Nisbet, Lowry, D, Andres, R., Tsuboi, K., R. E. Fisher, R. J. Andres, Rigby, M, Rigby, M., S. Maksyutov, A. Ganshin, M. Saito, Lowry, D., Zhuravlev, R, D. Lowry, K. Tsuboi, Fisher, Rebecca, Matsueda, H., Y. Sawa, Valsala, V., Zhuravlev, R., Ganshin, A, Saito, M., Andres, RJ   +57 more
core   +1 more source

Validation of recent geopotential models in Tierra Del Fuego [PDF]

, 2017
This work presents a validation study of global geopotential models (GGM) in the region of Fagnano Lake, located in the southern Andes. This is an excellent area for this type of validation because it is surrounded by the Andes Mountains, and there is no
Raul Perdomo, Gomez, María Eugenia, Maria Eugenia Gomez, Daniel Del Cogliano, Perdomo, Raúl Aníbal, Del Cogliano, Daniel Héctor   +5 more
core   +3 more sources

GLOBAL GEOPOTENTIAL MODELS IN THE REGION OF HUNGARY [PDF]

, 1993
The ability of some currently used high order geopotential models - OSU81, GPM2, IFE87E1 and 88E, OSU86E and 86F, OSU89A and OSU89B - to recover the gravity anomaly field in Hungary has been tested.
ÁDÁM , József
core   +1 more source

EGMlab, a scientific software for determining the gravity and gradient components from global geopotential models [PDF]

, 2008
Nowadays, Global Geopotential Models (GGMs) are used as a routine stage in the procedures to compute a gravimetric geoid. The GGMs based geoidal height also can be used for GPS/levelling and navigation purposes in developing countries which do not have ...
R. Kiamehr, M. Eshagh, Kiamehr, R., Eshagh, Mehdi,   +3 more
core   +1 more source

Study of geopotential error models used in orbit determination error analysis [PDF]

, 1991
The uncertainty in the geopotential model is currently one of the major error sources in the orbit determination of low-altitude Earth-orbiting spacecraft.
Kelbel, D., Mistretta, G. D., Samii, M. V., Lee, T., Hart, R. C., Yee, C.   +5 more
core   +1 more source

Evaluation of a Soviet-Era Gravimetric Survey Using Absolute Gravity Measurements and Global Gravity Models: Toward the First National Geoid of Kazakhstan

Geosciences
Determining a high-precision national geoid is a fundamental step in modernizing Kazakhstan’s vertical reference system. However, the country’s vast territory, complex topography, and limited coverage of modern terrestrial and airborne gravimetric ...
Daniya Shoganbekova, Asset Urazaliyev, Roman Sermiagin, Serik Nurakynov, Magzhan Kozhakhmetov, Nailya Zhaksygul, Anel Islyamova   +6 more
doaj   +1 more source