Wyniki wyszukiwania - BazTech

Ograniczanie wyników

Znaleziono wyników: 2

Liczba wyników na stronie

Wyniki wyszukiwania

Sortuj według:

Ogranicz wyniki do:

Chronology of Developments of Geodynamic Investigations in XIX and XX Centuries

Kolaczek B., Nastula J.

Reports on Geodesy

2012

z. 1/92

103--107

There were big developments of geodynamic investigations in the XX century. In the paper the scope of the chronology of developments of geodynamic investigations from the end of XIX century until the beginning of XXI century is presented. It is presented in the following six areas: 1. Theory 2. Establishment of definitions and models 3. Analysis of observations 4. Celestial reference frames 5. Terrestrial reference frames 6. Organizations of investigations

Spectral characteristic of polar motion in the 2005-2006 and 1999-2000 winters seasons

Nastula J., Kolaczek B.

Artificial Satellites : Journal of Planetary Geodesy

2007

Vol. 42, No. 1

1--7

The Earth's pole moves on the Earth's surface along the spiral curve known as "polhody". Polhody computed from the IERS C04 pole coordinates were compared with those computed after removing successively oscillations with periods shorter than 150, 30, 10, 2 days. The comparison of these polhody show that the loops in the winter seasons of 2005- 2006 and 1999-2000 are caused by the oscillations of polar motion with periods shorter than 30 days. These short periodical oscillations of geodetic excitation function of polar motion were correlated with those of the atmospheric and oceanic excitation functions. There are high correlations with coefficients equal to 0.8-0.9 during epochs when loops occur.