Abstract The average acceleration approach does not require any initial information of unknown parameters, and does not need interpolation or differential of orbits, which is more rigorous than pointwise acceleration approach. The parameters of the residual acceleration are unified to solve with coefficients when gravity field modeling by using the average acceleration approach. A gravity field model, which named GOCEAAA01S, is recovered based on GOCE precision orbits of days from 20091101 to 20100131 with the average acceleration approach. The results show that the gravity field model with the best accuracy is recovered by 12order polynomial and the accuracy of the recovered gravity field model will reduced when the order increases or decreases of polynomial. The geoid error of the model GOCEAAA01S is ±6.8 cm with 120order, the accuracy of the model GOCEAAA01S is higher than the model EIGENCHAMP05S with 6 to 120 order, but lower than the model EGM96 with the order over 102, and the precision of zonal coefficients is low due to the polar gap.
$author.xingMing_EN,$author.xingMing_EN,$author.xingMing_EN. GOCE GRAVITY FIELD MODELING BY USING AVERAGE
ACCELERATION APPROACH[J]. jgg, 2013, 33(6): 24-27.
$author.xingMing_EN,$author.xingMing_EN,$author.xingMing_EN. GOCE GRAVITY FIELD MODELING BY USING AVERAGE
ACCELERATION APPROACH[J]. jgg, 2013, 33(6): 24-27.
