河口悬浮泥沙浓度Sea WiFS遥感定量模式研究
A study on the quantitative remote sensing model for the sediment concentration in estuary
-
摘要: 利用海洋水色卫星 Seastar/SeaWiFS数据和准同步实测表层含沙量资料,建立长江口区悬浮泥沙遥感定量模式.通过“exact closed-form”算法对多时相SeaWiFS数据进行几何定位,并利用大气辐射传输简化理论对其进行大气校正,求得各波段遥感反射率;在完成投影变换和几何精校正之后,建立遥感参数与含沙量相关关系,得到长江口区悬浮泥沙遥感定量模式.Abstract: According to the Seastar/Sea WiFS remote sensing data and in-situ sediment concentration data acquired quasi-synchronously,the quantitative remote sensing model for suspended sediment in the Changjiang Estuary is set up.The primary Sea WiFS data are geolocated by the "exact closed-form" algorithm,and atmospherically corrected with the simplified procedures for the atmosphere transference computation,so the surface reflectance is got.After these,the remote sensing parameter,which shows the typical spectral features for sediment concentration,is obtained,and is correlated with the in-situ sediment concentration.Finally,the quantitative remote sensing model is got for sediment concentration.
-
Key words:
- Sea WiFS /
- geolocation /
- atmosphere correction /
- sediment remote sensing
-
GORDON H R,CLARK D K,BROWN J W,et al.Phytoplankton pigment concentrations in the Middle Atlantic Bight:comparison of ship determinations and CZCS estimates [J].Applied Optics,1983,2:20~36. ROLAND D,JURGEN F.Concentration of chlorophyll,suspended matter,and gelbstoff in Case 2 waters derived from satellite coastal zone color scanner data with inverse modeling methods [J].Journal of Geophysical Research,1994,99(C4):7 457~7 466. SATHEYENDRANATHM S,PRI1EUR L,MOREL A.A three-component model of ocean color and its application to remote sensing of phytoplankton pigments in coastal waters [J].International Journal of Remote Sensing,1989,10:1 373~1 394. TASSAN S.A method for the retrieval of phytoplankton and suspended sediment concentration from remote measurements of water color[A].Proceedings of the 15th International Symposium on Remote Sensing of Environment [C].Environmental Research Institute of Michigan,Ann Arbor,1981.577~586. TASSAN S,STURM B.An algorithm for the retrieval of sediment content in the turbid coastal waters from CZCS data [J].International Journal of Remote Sensing,1986,8:1 455~1 487. PATT F S,GREGG W W.Exact closed-form geolocation algorithm for earth survey sensor [J].International Journal of Remote Sensing,1994,15(18):3 719~3 734. 陈述彭,童庆禧,郭华东.遥感信息机理研究[M] 北京:科学出版社,1998 MORAN M S,JACKSON R D,SLATER P N,et al.Evaluation of simplified procedures for retrieval of land surface reflectance factors from satellite sensor output [J].Remote Sensing of Environment,1992,41:169~184. PAT S,CHAVEZ Jr.Image-based atmospheric corrections-revisited and improved [J].PE & RS,1996,62(9):1 025~1 036. HAN Luo-heng,RUNDQUIST D C.The response of both surface reflectance and the underwater light field to various levels of suspended sediments:preliminary results [J].PE & RS,1994,60(12):1 463~1 471. CHAVEZ P S.A improved dark-object substraction algorithm applied to landsat images [J].International Journal of Remote Sensing,1988,24:459~479. SLATER P N.Remote sensing-optics and optical system [M].Reading,MA:Addison-Wesley,1983.575~567. 傅克忖,荒川久幸,曾宪模.悬沙水体不同波段反射比的分布特征及悬沙量计算实验研究[J].海洋学报,1999,21(3):134~140. NOVO E M L M,STEFFEN C A,BRAGA C Z F.Results of a laboratory experiment relating spectral reflectance to total suspended solid [J].Remote Sens Environ,1991,36:67~72.
点击查看大图
计量
- 文章访问数: 823
- HTML全文浏览量: 2
- PDF下载量: 1184
- 被引次数: 0