期刊文献+

利用AMSR-E数据反演华北平原冬小麦单散射反照率

原文传递
导出
摘要 首先,基于冬小麦不同生育期的地面实测参数,构建了组成冬小麦冠层的、包括不同尺寸和含水量的介电散射体模拟数据库,并在此基础上建立冬小麦单散射反照率和光学厚度分别在C(6.925 GHz)和X(10.65 GHz)波段之间的依赖关系。然后,根据一阶参数化模型推导得到的微波植被指数MVIs(Microwave Vegetation Indices)的物理表达式,结合AMSR-E被动微波亮温数据,反演了华北平原地区冬小麦不同生育期的单散射反照率。与MODIS日归一化差异植被指数NDVI的对比结果显示:冬小麦单散射反照率与NDVI随时间的变化趋势大致相同,但在冬小麦的抽穗期到乳熟期,NDVI呈现饱和趋势,而单散射反照率对小麦的生长变化仍旧比较敏感,在指示冬小麦生长方面具有一定优势。
出处 《遥感学报》 EI CSCD 北大核心 2015年第1期162-171,共10页 NATIONAL REMOTE SENSING BULLETIN
基金 国家自然科学基金(编号:41171259) 国家重点基础研究发展计划(973计划)(编号:2013CB733406)
  • 相关文献

参考文献27

  • 1Bouman B A M and van Kasteren H W J. 1990. Ground-based X-band (3-cm wave) radar backscattering of agricultural crops. I. Sugar beet and potato; backscattering and crop growth. Remote Sensing of Environment, 34(2) : 93 - 105 [DOI: 10. 1016/0034 -4257(90) 90101 - Q].
  • 2Chai L, Shi J, Zhang L and Jiang L. 2010a. A parameterized microwave model for short vegetation layer//Proceedings in IEEE International Geoscience and Remote Sensing Symposium. Honolulu, HI : IEEE : 3023 -3026 [ DOI: 10. 1109/IGARSS. 2010. 5654450].
  • 3Chai L, Shi J, Zhang L and Jackson T. 2010b. Refinement of microwave vegetation indices. Proceedings in SPIE Remote Sensing and Model- ing of Ecosystems for Sustainability VII, 7809, 780904 [DOI: 10. 1117/12.858356].
  • 4Chen L, Shi J C, Wigneron J P and Chen K S. 2010. A parameterized surface emission model at L-band for soil moisture retrieval. IEEE Geoscienee and Remote Sensing Letters, 7 (1) : 127 - 130 [DOI: 10. 1117/12. 858356].
  • 5Cookmartin G, Saich P, Quegan S, Cordey R, Burgess-Allen P and Sowter A. 2000. Modeling microwave interactions with crops and comparison with ERS-2 SAR observations. IEEE Transactions on Geoscience and Remote Sensing, 38 (2) : 658 - 670 [DOI: 10. 1109/36. 841996].
  • 6Feng W, Zhu Y, Tian Y C, Cao W X, Yao X and Li Y X. 2008. Moni- toting leaf nitrogen accumulation in wheat with hyper-spectral remote sensing. Acta Ecologica Sinica, 28 ( 1 ) : 23 - 32 [DOI: 10. 1016/ S1872 -2032(08)60018 -9].
  • 7Ferrazzoli P and Guerriero L. 1995. Radar sensitivity to tree geometry and woody volume: a model analysis. IEEE Transactions on Geosci- ence and Remote Sensing, 33 (2) : 360 -371 [ DOI: 10.1109/36. 377936 ].
  • 8Ferrazzoli P, Wigneron J-P, Guerriero L and Chanzy A. 2000. Multifre- quency emission of wheat : Modeling and applications. IEEE Trans- actions on Geoscience and Remote Sensing, 38 ( 6 ) : 2598 - 2607 [DOI: 10. 1109/36. 885206].
  • 9Fung A K. 1994. Microwave Scattering and Emission Models and Their Applications. Norwood, MA, USA : Artech House Publishers.
  • 10Inoue Y, Kurosu T, Maeno H, Uratsuka S, Kozu T, Dabrowska-Zielins- ka K and Qi J. 2002. Season-long daily measurements of muhifre- quency (Ka, Ku, X, C, and L) and full-polarization backscatter signatures over paddy rice field and their relationship with biological variables. Remote Sensing of Environment, 81 ( 2 - 3 ) : 194 - 204 [ DOI: 10. 1016/S0034 -4257(01 )00343 - 1 ].

二级参考文献28

共引文献17

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部