Analyzing the Impact of Climate Factors on GNSS-Derived Displacements by Combining the Extended Helmert Transformation and XGboost Machine Learning Algorithm

Table 2

Seven parameters for Helmert reference frame transformation from IGS14 to PRVI19.

Parameters	Unit	IGS14 to PRVI19
dTx	m/year	2.652437-02
dTy	m/year	-2.130450-02
dTz	m/year	-9.310699-02
dRx	Radian/year	1.386115-08
dRy	Radian/year	1.273412-09
dRz	Radian/year	5.511930-09
	1/year	2015.0

Counterclockwise rotations of axes (, , ) are positive.