TY - GEN
T1 - The actual plate kinematic and crustal deformation model APKIM2005 as basis for a non-rotating ITRF
AU - Drewes, Hermann
PY - 2009
Y1 - 2009
N2 - A present-day plate kinematic and crustal deformation model is needed as a reference system for station velocities in the ITRF. The common rotation of all points of the Earth surface has to become zero in order to be consistent with Earth rotation parameters (condition of no net rotation, NNR). To realize this condition, we divide the surface into rigid plates and inter-plate deformation zones. Both, plate motions and deformations are modelled from the observed station velocities. The plate motions are represented by one rotation vector per plate, the inter-plate deformations are computed using a least squares collocation approach. In the APKIM2005, rotation vectors of 17 major plates and deformations in five plate boundary zones (Alps-Aegean, Persia-Tibet-Burma, Alaska-Yukon, Gorda-California, Andes) are estimated. The global integration is done in a 1°x1° grid covering the entire Earth surface. The ITRF2005 velocities result in a rotation of about 0.06 mas/year compared with the non-rotating terrestrial reference frame.
AB - A present-day plate kinematic and crustal deformation model is needed as a reference system for station velocities in the ITRF. The common rotation of all points of the Earth surface has to become zero in order to be consistent with Earth rotation parameters (condition of no net rotation, NNR). To realize this condition, we divide the surface into rigid plates and inter-plate deformation zones. Both, plate motions and deformations are modelled from the observed station velocities. The plate motions are represented by one rotation vector per plate, the inter-plate deformations are computed using a least squares collocation approach. In the APKIM2005, rotation vectors of 17 major plates and deformations in five plate boundary zones (Alps-Aegean, Persia-Tibet-Burma, Alaska-Yukon, Gorda-California, Andes) are estimated. The global integration is done in a 1°x1° grid covering the entire Earth surface. The ITRF2005 velocities result in a rotation of about 0.06 mas/year compared with the non-rotating terrestrial reference frame.
KW - APKIM
KW - ITRF
KW - Reference system
KW - crust deformation
KW - plate kinematics
KW - reference frame
UR - http://www.scopus.com/inward/record.url?scp=84869120358&partnerID=8YFLogxK
U2 - 10.1007/978-3-642-00860-3_15
DO - 10.1007/978-3-642-00860-3_15
M3 - Conference contribution
AN - SCOPUS:84869120358
SN - 9783642008597
T3 - International Association of Geodesy Symposia
SP - 95
EP - 99
BT - Geodetic Reference Frames - IAG Symposium
T2 - IAG Symposium on Geodetic Reference Frames, GRF 2006
Y2 - 9 October 2006 through 14 October 2006
ER -