Journal of Geo-information Science >
Estimation of Variation of Poyang Lake Area Based on Long-term MODIS Observations
Received date: 2013-01-14
Revised date: 2013-02-25
Online published: 2013-06-17
critical to monitor its long-term change to understand the condition and variation of Poyang Lake and to evaluate its response to climate change and human activities.In this paper,an algorithm for extracting water area of Poyang Lake using MODIS land surface reflectance data is presented.Firstly,the maximum water area is acquired based on composition of the minimum land surface reflectance in red band for each year.Then,only those pixels in the maximum water coverage region are identified as the water or land status with MODIS land surface reflec- tance in green,near-infrared and shortwave channels.Lastly,the water coverage fraction is calculated during certain periods and used to analyze the seasonal and annual variations of Poyang Lake.This algorithm could eliminate the impacts of cloud contamination and rapid seasonal change of lake water area on this analysis.The water area were extracted and analyzed from MODIS 8-day land surface reflectance observations(MOD09A1)during 2000 to 2010.The results show that the water area of Poyang Lake based on our algorithm is of high consistency to the hydrological observations at local sites.The algorithm could represent the significant seasonal variations of the water area of Poyang Lake.From April to September,the lake is vast due to the abundant water from Poyang Lake basin and Yangtze River.From October to March in the next year,the lake shrinks significantly.The minimum water area occurs in January,while it is in July for the maximum water area.During 2000 to 2010,no significant change of the water area of Poyang Lake is found during the flood season.After 2003,the lake shows a noticeable decrease in its water area during the dry season.
Key words： change analysis; water area; Poyang Lake; time series; MODIS
LIU Xiang, YOU Hui, CHENG Xiao, GE Quan-Qing, LIU Rong-Gao . Estimation of Variation of Poyang Lake Area Based on Long-term MODIS Observations[J]. Journal of Geo-information Science, 2013 , 15(3) : 469 -475 . DOI: 10.3724/SP.J.1047.2013.00469
[1] Smith L C,Sheng Y,MacDonald G M,et al.DisappearingArctic lakes[J].Science,2005,308(5727):1429-1429.
[2] Huang L,Liu J Y,Shao Q Q,et al.Changing inland lakesresponding to climate warming in Northeastern TibetanPlateau[J].Climate Change,2011,109(3-4):479-502.
[3] Prigent C,Papa F,Aires F,et al.Global inundation dynam-ics inferred from multiple satellite observations,1993-2000[J].Journal of Geophysical Research,2007,112(D12107):1-13.
[4] 国家发展改革委员会.鄱阳湖生态经济区规划[R].2009.
[5] 沈国状,廖静娟.面向对象技术用于多极化SAR图像地表淹没程度自动探测分析[J].遥感技术与应用,2007,22(1):79-82.
[6] 王庆,廖静娟.基于SAR数据的鄱阳湖水体提取及变化监测研究[J].国土资源遥感,2010(4):91-97.
[7] Strozzi T,Wiesmann A,Kaab A,et al.Glacial lake map-ping with very high resolution satellite SAR data[J].Natu-ral Hazards and Earth System Sciences,2012,12(8):2487-2498.
[8] Kharbouche S,Clavet D.A tool for semi-automated extrac-tion of waterbody feature in SAR imagery[J].RemoteSensing Letters,2013,4(4):381-390.
[9] Nie Y,Zhang Y L,Ding M J,et al.Lake change and its im-plication in the vicinity of Mt.Qomolangma(Everest),cen-tral high Himalayas,1970–2009[J].Environmental EarthSciences,2013,68(1):251-265.
[10] Feng L,Hu C M,Chen X L.Satellites capture the droughtseverity around China's largest freshwater lake[J].IEEEJournal of Selected Topics in Applied Earth Observationsand Remote Sensing,2012,5(4):1266-1271.
[11] Carroll M L,Townshend J R G,DiMiceli C M,et al.Shrinking lakes of the Arctic:Spatial relationships andtrajectory of change[J].Geophysical Research Letters,2011,38(L20406):1-5.
[12] 李景刚,李纪人,黄诗峰,等.近10年来洞庭湖区水面面积变化遥感监测分析[J].中国水利水电科学研究院学报,2010,8(3):201-207.
[13] 丁莉东,余文华,覃志豪,等.基于MODIS的鄱阳湖区水体水灾遥感影像图制作[J].国土资源遥感,2007(1):82-85.
[14] 李辉,李长安,张利华,等.基于MODIS影像的鄱阳湖湖面积与水位关系研究[J].第四纪研究,2008,28(2):332-337.
[15] 许小华,张维奇,胡强.基于MODIS的鄱阳湖湖面面积遥感监测研究[J].江西水利科技,2008,34(4):256-258.
[16] 雷声,张秀平,许新发.利用遥感技术动态监测分析鄱阳湖水体面积及容积[J].水利科技,2010(4):22-25.
[17] 李景刚,李纪人,黄诗峰,等.Terra/MODIS时间序列数据在湖泊水域面积动态检测中的应用研究——以洞庭湖地区为例[J].自然资源学报,2009,24(5):923-933.
[18] Yang,Z R,Teller J T.Using LiDAR Digital ElevationModel data to map Lake Agassiz beaches,measure theirisostatically-induced gradients,and estimate their ages[J].Quaternary International,2012(260):32-42.
[19] Kaufman Y J,Tanre D,Gordon H R,et al.Passive re-mote sensing of tropospheric aerosol and atmospheric cor-rection for the aerosol effect[J].Journal of GeophysicalResearch-Atmospheres,1997,102(D14):16815-16830.
[20] 傅春,刘文标.三峡工程对长江中下游鄱阳湖区防洪态势的影响分析[J].中国防汛抗旱,2007(3):18-21.
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