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MODIS亚像元积雪覆盖反演算法研究——纪念杰出的地理学家、冰川学家施雅风先生逝世一周年

Keywords: 多端元光谱混合分析,亚像元雪盖,端元选择

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Abstract:

积雪覆盖(snowcover)是气候、水文和生态环境等研究领域中很重要的参数之一。与积雪覆盖二值技术不同,亚像元雪盖反演技术可以在给定卫星观测空间分辨率前提下进一步提高积雪覆盖面积的反演精度。"多端元光谱混合分析"方法反演亚像元积雪覆盖度具有物理意义明确、精度高等优势。但由于其需要通过端元选取、最小二乘法反演等计算,运行效率较低,难以满足大数据量计算。我们发展了一种改进"多端元光谱混合分析"方法反演MODIS亚像元积雪覆盖的算法。该算法通过对MOD09GA数据进行图像端元自动提取,并利用能够代表图像端元类的典型端元库进行"多端元光谱混合分析"反演亚像元积雪覆盖。我们在端元选取、多端元线性混合模型分解等方面进行了改进与发展,不仅保证了产品精度,同时提高了计算的时效性。

References

[1]  Barnett T P, Adam J C,Lettenmaier D P.Potential impacts of a warming climate on water availability in snow-dominated regions. Nature,2005, 438 :303~309
[2]  Matson M, Roeplewski C F,Varnadore M S.An Atlas of Satellite-derived Northern Hemisphere Snow Cover Frequency.Wangshington D.C: National Weather Service,1986.75
[3]  Chang A T C. Estimating snowpack parameters in the Colorado River Basin.In: Symposium at Vancouer 1987——Large Scale Effects of Seasonal Snow Cover(International Association of Hydrological Science Publication).IAHS Publication,1987, 166 :343~352
[4]  许丽娜.青藏高原雪盖面积变化研究.北京: 中国科学院研究生院博士论文,2006.46
[5]  Xu Lina. Reaserach on Change Analysis of Snow Cover over Tibetan Plateau.Beijing: The Ph.D Thesis of Graduate University of Chinese Academy of Sciences,2006.46
[6]  Mcfeeters S K. The use of the Normalized Difference Water Index(NDWI)in the delineation of open water features.International Journal of Remote Sensing,1996, 17 (7):1425~1432
[7]  Dennison P E, Roberts D A.Endmember selection for multiple endmember spectral mixture analysis using endmember average RMSE.Remote Sensing of Environment,2003, 87 (2~3):123~135
[8]  Painter T H, Rittger K,McKenzie C et al.Retrieval of subpixel snow covered area,grain size,and albedo from MODIS.Remote Sensing of Environment,2009, 113 (4):868~879
[9]  Hall D K, Tait A,Riggs G et al.MODIS Snow Mapping Algorithm and Sea Ice Mapping Algorithm(Version 4.0).ATBD-MOD-10,2001.17
[10]  Rango A, Martine J.Snow accumulation derived from modified depletion curves of snow coverage.In:Symposium on Hydrological Aspects of Alpine and High Moutain Area.IAHS Publication,1982, 138 :83~90
[11]  Dozier J. Snow reflectance from Landsat-4 Thermatic Mapper.IEEE Trancations on Geoscience and Remote Sensing,1984, 22 (3):323~328
[12]  Hall D K, Riggs G A,Salomonson V V.Development of methods for mapping global snow cover using moderate resolution imaging spectroradiometer data.Remote Sensing of Environment,1995, 54 (2):127~140
[13]  Shi J. Validation Snow Extent Production from MODIS Data. Final Report,NASA,2001.6
[14]  Salomonson V V, Appel I.Estimating fractional snow cover from MODIS using the normalized difference snow index.Remote Sensing of Environment,2004, 89 (3):351~360
[15]  Klein A G, Isacks B L.Spectral mixture analysis of Landsat Thematic Mapper images applied to the detection of the transient snowline on tropical Andean glaciers.Global and Planetary Change,1999, 22 (1~4):139~154
[16]  Anne N W, Dozier J,Meters L A K.Mapping alpine snow using a spectral mixture modeling technique.Annals of Glaciology,1993, 7 :121~124
[17]  Rosenthal W, Dozier J.Automated mapping of montane snow cover at subpixel resolution from the Landsat Thematic Mapper.Water Resources Research,1996, 32 (1):115~130
[18]  Vikhamar D, Solberg R.Snow-cover mapping in forests by constrained linear spectral unmixing of MODIS data.Remote Sensing of Environment,2003, 88 (3):309~323
[19]  Roberts D A, Gardner M,Church R et al.Mapping chaparral in the Santa Monica Mountains using multiple Endmember Spectral Mixture models.Remote Sensing of Environment,1998, 65 (3):267~279
[20]  Ballantine J C, Okin G S,Prentiss D E et al.Mapping North African landforms using continental scale unmixing of MODIS imagery.Remote Sensing of Environment,2005, 97 (4):470~483
[21]  Okin G S, Roberts D A,Murray B et al.Practical limits on hyperspectral vegetation discrimination in arid and semiarid environments.Remote Sensing of Environment,2001, 77 (2):212~225
[22]  Shi J. Estimation of snow fraction using simulated ASTER image data.Remote Sensing and Hydrology,2001, 267 :120~122
[23]  Painter T H, Dozier J,Roberts D A et al.Retrieval of subpixel snow-covered area and grain size from imaging spectrometer data.Remote Sensing of Environment,2003, 85 (1):64~77
[24]  Franke J, Roberts D A,Halligan K et al.Hierarchical Multiple Endmember Spectral Mixture Analysis(MESMA)of hyperspectral imagery for urban environments.Remote Sensing of Environment,2009, 113 (8):1712~1723

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