Earth rotation, besides external actions due to other bodies in the solar system, is influenced by internal mass redistributions, including its atmospheric and water envelope. EI Nifio-Southern Oscillation (ENSO) is one such event characterized by sea level change in the eastern part of the Pacific Ocean due to an increase of the temperature by about 2°C. ENSO is manifested with irreguIar periodicity and with different strength. SateIIite Laser Ranging (SLR) to orbiting satellites such as LAGEOS and LARES in conjunction with the other geodedic techniques, such as GNSS and Very Long Baseline Interferometry (VLBI), allow very accurate determination of the center of mass and rotation vector of the Earth. The paper will report on the experimental vaIues of the Earth orientation parameters and in particuIar of the center of mass and the Iength of the day with particuIar reference to signatures due to last ENSO event ended in 2016

El Niño effects on earth rotation parameters from LAGEOS and LARES orbital analysis / Pavlis, Erricos C.; Sindoni, Giampiero; Paolozzi, Antonio; Ciufolini, Ignazio; Paris, Claudio; Kuzmicz-Cieslak, Magdalena; Gabrielli, Alessandro. - ELETTRONICO. - (2017), pp. 1-6. ((Intervento presentato al convegno 17th IEEE International Conference on Environment and Electrical Engineering and 2017 1st IEEE Industrial and Commercial Power Systems Europe, EEEIC / I and CPS Europe 2017 tenutosi a Milan, ITALY nel 2017 [10.1109/EEEIC.2017.7977821].

El Niño effects on earth rotation parameters from LAGEOS and LARES orbital analysis

Sindoni, Giampiero
;
Paolozzi, Antonio
;
Ciufolini, Ignazio
;
Paris, Claudio
;
GABRIELLI, ALESSANDRO
2017

Abstract

Earth rotation, besides external actions due to other bodies in the solar system, is influenced by internal mass redistributions, including its atmospheric and water envelope. EI Nifio-Southern Oscillation (ENSO) is one such event characterized by sea level change in the eastern part of the Pacific Ocean due to an increase of the temperature by about 2°C. ENSO is manifested with irreguIar periodicity and with different strength. SateIIite Laser Ranging (SLR) to orbiting satellites such as LAGEOS and LARES in conjunction with the other geodedic techniques, such as GNSS and Very Long Baseline Interferometry (VLBI), allow very accurate determination of the center of mass and rotation vector of the Earth. The paper will report on the experimental vaIues of the Earth orientation parameters and in particuIar of the center of mass and the Iength of the day with particuIar reference to signatures due to last ENSO event ended in 2016
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11573/1092927
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