CAJ | 학술논문

1969考拉首次提出卫星测高的构想，随后便被广泛的应用于高精度地测定南极冰盖高程变化、质量均衡和全球海平面变化的研究之中。本文采用2003年2月～2008年10月共14期数据专门对极地冰盖高程的周年变化进行研究，基于激光光斑交叉重叠方法数据量少的不足，设计提出沿轨切向长510 m，沿轨法向长390 m的矩形片段，并将可能影响高程变化的主要因素归结为地表坡度、季节性影响、高程变化，并组成时间序列，进行最小二乘间接平差，与交叉重叠方法估计冰盖高程变化相比，显著地增加了研究区的有效数据量，提高解算成果的精度和增强模型的可靠性。实验证明，该方法对分析南极冰盖高程周年变化是有效的。
1969고랍수차제출위성측고적구상，수후편피엄범적응용우고정도지측정남겁빙개고정변화、질량균형화전구해평면변화적연구지중。본문채용2003년2월～2008년10월공14기수거전문대겁지빙개고정적주년변화진행연구，기우격광광반교차중첩방법수거량소적불족，설계제출연궤절향장510 m，연궤법향장390 m적구형편단，병장가능영향고정변화적주요인소귀결위지표파도、계절성영향、고정변화，병조성시간서렬，진행최소이승간접평차，여교차중첩방법고계빙개고정변화상비，현저지증가료연구구적유효수거량，제고해산성과적정도화증강모형적가고성。실험증명，해방법대분석남겁빙개고정주년변화시유효적。
Koala has proposed the idea of satellite altimetry in 1969 at first ,which has widely used in high-precision determination of the Antarctic ice sheet elevation change ,mass balance and global sea level change research .In this pa-per,a total of 14 data from February 2003 to October 2008 has been devoted to the research of the anniversary of the po-lar ice sheet elevation change ,which has been designed along the track 510 meter,across the track 390 meter,because of the lack of data in the method of overlap footprint .It has fully considered that Surface slope ,seasonal changes ,elevation changes composted the time series ,and then used the method of the least-squares adjustment .Compared to the overlaping footprint method ,data would been increased signficantly for the study area ,accuracy of the results would been improved and the reliability of the model would also been enhanced .It has showed that this method of analysis of the Antarctic ice sheet elevation annual change was effective .