CAJ | 학술논문

利用 CSR（Center for Space Research）提供的 GRACE RL05数据反演2003—2012年中国大陆水储量及其周边海域海水质量变化趋势。采用改进去相关滤波算法，使拟合最高阶次位系数为55及数据系列两端球谐位系数无须作为滑动窗口中心可直接拟合，去条带效果相比传统方法更明显。结果表明，中国陆地水储量在华北平原、三峡地区及青海、新疆、西藏交界地区变化较大。十年间，华北平原地下水以4．1±1．3 mm／a 速度减少，陆地水和地表水变化主要集中在2004—2008年；三峡水库3次蓄水引起地区等效水高变化分别为52 mm、18 mm及7 mm ；青海、西藏、新疆3省区交界地区地表水变化引起陆地水、地下水分别以10．6 ± 0．9 mm／a 及11．6 ± 1．0 mm／a 的速度增加。扣除冰川均衡调整后， GRACE 反演海水质量的变化结果显示，东海、南海、黄海海水质量分别以4．23 ± 0．9 mm／a 、1．33 ± 0．9 mm／a及3．09 ± 1．1 mm／a 的速度上升，东海海水质量在长江入口附近上升速度最快。
이용 CSR（Center for Space Research）제공적 GRACE RL05수거반연2003—2012년중국대륙수저량급기주변해역해수질량변화추세。채용개진거상관려파산법，사의합최고계차위계수위55급수거계렬량단구해위계수무수작위활동창구중심가직접의합，거조대효과상비전통방법경명현。결과표명，중국륙지수저량재화북평원、삼협지구급청해、신강、서장교계지구변화교대。십년간，화북평원지하수이4．1±1．3 mm／a 속도감소，륙지수화지표수변화주요집중재2004—2008년；삼협수고3차축수인기지구등효수고변화분별위52 mm、18 mm급7 mm ；청해、서장、신강3성구교계지구지표수변화인기륙지수、지하수분별이10．6 ± 0．9 mm／a 급11．6 ± 1．0 mm／a 적속도증가。구제빙천균형조정후， GRACE 반연해수질량적변화결과현시，동해、남해、황해해수질량분별이4．23 ± 0．9 mm／a 、1．33 ± 0．9 mm／a급3．09 ± 1．1 mm／a 적속도상승，동해해수질량재장강입구부근상승속도최쾌。
Chinese mainland water reserves and the variation tendency of the ocean water mass from2003 to 2012 are recovered with the data of GRACE RL05 provided by Center for Space Research .An improved de‐correlated filtering algorithmis presented .which sets the highest order coefficient to be fitted up to 55 and the border coefficient can also be directly fitted without being used as center of the sliding window . The algorithm is proposed with significant decrease in stripes compared with traditional algorithms .The results show that the area ,where terrestrial water changes a lot ,are the north China plain ,the three gorges region ,the border region of Qinghai ,Xinjiang and Tibet respectively .During the recent ten years , the groundwater of north China plain reduces at the rate of 4 .1 ± 1 .3 mm/a ,The change of ground water and surface water are mainly between 2004 and 2008 .GRACE can detect the prominent of mass change of the Three Gorges Reservoir in the form of equivalent water height ,which are 52 mm、18 mm and 7 mm respec‐tively .The ground water and terrestrial water in the border region of Qinghai ,Xinjiang and Tibet have increased at the rate of 10 .6 ± 0 .9 mm/a 、11 .6 ± 1 .1 mm/a respectively .The results of GRACE data show that the ocean mass rise trend of East China Sea ,South China Sea and YellowChina Sea are 4 .23 ± 0 .9 mm/a 、1 .33 ± 0 .9 mm/a 、3 .09 ± 1 .1 mm/a ,respectively after the deduction of the glacial isostatic adjustment .The ocean water mass of East China Sea rises significantly faster than the other two areas .