RT Journal Article T1 Diurnal and subdiurnal luni-solar nutations: Comparisons and effects A1 Folgueira López, Marta A1 Bizouard, C.H. A1 Souchay, J. AB We present a comparison of the diurnal and subdiurnal terms of the three last theories of rigid Earth's rotation: SMART97, RDAN97 and REN 2000. For a better interpretation of the observations, we characterize their contribution to the polar motion and we estimate the non-rigid effects, which are at the level of a few microareseconds. PB Kluwer Academic Publishers SN 0923-2958 YR 2001 FD 2001 LK https://hdl.handle.net/20.500.14352/57289 UL https://hdl.handle.net/20.500.14352/57289 LA eng DS Docta Complutense RD 16 jul 2025