摘要
在由似大地水准面过渡到大地水准面的进程中 ,一定要顾及高程二次项 (H2 )的改正 ,在此基础上 ,推求了洱海中海岛的大地水准面与正高 ,它们分别为 (- 31.41± 0 .6 8)m和 (2 0 0 0 .41± 0 .10 )m .文中对 ζ -N中改正项的数学与物理意义也作了阐述 .
The second power of height H has to be considered in the transformation from quasi geoid to geoid,on the basis of it the geoid and orthometric height in Earhai's Haidao are determined.They are respectively (-31.41±0.68)m and (2000.41±0.10)m.The mathematics and physical meaning in ( ζ-N ) correction terms are also stated.
出处
《云南大学学报（自然科学版）》
CAS
CSCD
2000年第4期266-268,共3页
Journal of Yunnan University(Natural Sciences Edition)
基金
国家自然科学基金资助项目!( 4 96742 0 8)
中科院重点基金资助项目!(KZ95 2J -4 1)
关键词
耳海
重力异常垂直梯度
大地水准面
正高
云南
Earhai
vertical gradient of gravity anomaly
geoid
othometric height
