联合Topex/Poseidon与Envisat高度计数据监测我国大陆地表覆盖变化

doi:10.11947/j.AGCS.2015.20140634

测绘学报 ›› 2015, Vol. 44 ›› Issue (9): 1048-1055.doi: 10.11947/j.AGCS.2015.20140634

• 中国测绘地理信息学会2014年青年优秀论文 • 上一篇下一篇

联合Topex/Poseidon与Envisat高度计数据监测我国大陆地表覆盖变化

柯宝贵¹, 章传银¹, 常晓涛², 张利明¹

1. 中国测绘科学研究院, 北京 100830;
2. 国家测绘地理信息局卫星测绘应用中心, 北京 100830

收稿日期:2014-12-02 修回日期:2015-05-08 出版日期:2015-09-24 发布日期:2015-09-24
作者简介:柯宝贵(1982—),男,博士,副研究员,研究方向为重力场与垂直基准构建。E-mail:kebaogui@163.com

Monitoring the Land Cover Change of China with the Combination of the Topex/Poseidon and Envisat Radar Altimetric Data

KE Baogui¹, ZHANG Chuanyin¹, CHANG Xiaotao², ZHANG Liming¹

1. Chinese Academy of Surveying and Mapping, Beijing 100830, China;
2. Satellite Surveying and Mapping Application Center, National Administration of Surveying, Mapping and Geoinformation, Beijing 100830, China

Received:2014-12-02 Revised:2015-05-08 Online:2015-09-24 Published:2015-09-24

摘要/Abstract

摘要： 首次联合Topex/Poseidon(T/P)与Envisat高度计数据,提取了2002年5月至2005年5月期间两高度计Ku波段的后向散射系数,采用连续张力曲线样条格网化方法,有效地解决了数据稀疏区容易出现极值以及对数据密集区进行格网化时不平滑的问题,得到了格网时间序列数据,分析了T/P与Envisat两高度计后向散射系数的统计差异,进而讨论了我国陆地覆盖的空间分布特征,定性地研究了内蒙古高原、华北平原、东北平原、青藏高原、云贵高原、黄土高原、长江中下游平原的后向散射系数的成因机制及其随时间的演化规律,研究结果可为因自然灾害和环境变化而导致地表覆盖变化的监测提供决策支持。

关键词: 后向散射系数, 张力曲线样条, Topex/Poseidon, Envisat, 卫星雷达测高

Abstract: The Ku band backscatter coefficients data have been extracted since 2002.5 to 2005.5 from Topex/Poseidon(T/P)GDR-M and Envisat OPR datasets. Based on the continuous tension spline curve gridding method, the time series gridding data was obtained. Then the two different backscatter coefficients time series were compared. Carefully analysis and discussion on the spatial distribution characteristic of the backscattering coefficients in Inner Mongolia plateau, North China Plain, Northeast China Plain, the Qinghai Tibet Plateau, the Yunnan Guizhou Plateau, the Loess Plateau, the Yangtze River Plain indicate that both technologies can be used for monitoring natural disasters and potential environmental change of China and providing decision support for monitoring time series for land cover change.

Key words: backscatter coefficient, continuous tension spline curve, Topex/Poseidon, envisat, radar altimetry

中图分类号:

P237

柯宝贵, 章传银, 常晓涛, 张利明. 联合Topex/Poseidon与Envisat高度计数据监测我国大陆地表覆盖变化[J]. 测绘学报, 2015, 44(9): 1048-1055.

KE Baogui, ZHANG Chuanyin, CHANG Xiaotao, ZHANG Liming. Monitoring the Land Cover Change of China with the Combination of the Topex/Poseidon and Envisat Radar Altimetric Data[J]. Acta Geodaetica et Cartographica Sinica, 2015, 44(9): 1048-1055.

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联合Topex/Poseidon与Envisat高度计数据监测我国大陆地表覆盖变化

Monitoring the Land Cover Change of China with the Combination of the Topex/Poseidon and Envisat Radar Altimetric Data

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[2]	郭金运孙佳龙常晓涛郭淑艳刘新. TOPEX/Poseidon卫星监测博斯腾湖水位变化及其与NINO3 SST的相关性分析 [J]. 测绘学报, 2010, 39(3): 0-226.