STUDY ON A FAST ALGORITHM FOR MODEL GRAVITY
ANOMALIES IN LOCAL AREAS
Information Engineering University，Institute of Geographic Spatial Information，Zhengzhou 450052
Abstract A fast algorithm was presented in the paper. Classical spherical approximation formula is able to be used to calculate model gravity anomaly by computers; however，the speed of calculation is still away from demand. So，a new formula is needed to improve operating speed. Throuph spreading Taylor formula，getting access to zeroorder term，oneorder term and twoorder term respectively，and comparing speed and accuracy of three methods’ speed and their accuracy，an optimum practical algorithm for calculating model gravity anomalies is obtained.
Key words ：
elements for local area
gravity field model
Tyler formula
gravity anomaliy
fast calculation formula
Received: 23 April 2013
Published: 13 December 2013
Cite this article:
$author.xingMing_EN,$author.xingMing_EN. STUDY ON A FAST ALGORITHM FOR MODEL GRAVITY
ANOMALIES IN LOCAL AREAS[J]. jgg, 2013, 33(6): 28-30.
$author.xingMing_EN,$author.xingMing_EN. STUDY ON A FAST ALGORITHM FOR MODEL GRAVITY
ANOMALIES IN LOCAL AREAS[J]. jgg, 2013, 33(6): 28-30.
URL:
http://www.jgg09.com/EN/ OR http://www.jgg09.com/EN/Y2013/V33/I6/28
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