遥感技术在河口颗粒态总磷分布及扩散研究中的应用初探
Preliminary study of concentration distribution of total particulate phosphorus in estuary by remote sensing technology
-
摘要: 以美国SeaStar卫星装载的SeaWiFS海洋水色遥感传感器作为遥感数据源,实测了光谱、海表温度、悬浮物含量、透明度、叶绿素浓度、颗粒态总磷含量等,建立了传感器悬浮物含量和颗粒态总磷含量的遥感信息提取模式,结果表明:(1)利用遥感技术估算的海水悬浮物的平均相对偏差为18.1%;(2)悬浮物在遥感图象上的分布和扩散趋势与实际吻合,并且在一定程度上反映了区域内海流运移路径;(3)颗粒态总磷含量在长江河口和杭州湾附近海域较高,由近岸向远岸迅速降低,与实际分布相符;(4)模型主要适用于河口等悬浮物含量高的Ⅱ类水休,对于以浮游植物为主的Ⅰ类水体应另外建立模式.Abstract: The SeaWiFS loaded on SEASTAR is used as remote sensing data source.With the in-situ data of suspended sedmient concentration (SSC) and total particulate phosphorus(TPP),and inverse regression equation,which suggests the exponential relationship between in-situ suspended sedmient concentration data and in-situ radiance data,is employed:ySSC=0.382 6exp[4.9748(R670/R555)],r2 =0.9179.Meanwhile the concentration of particulate phosphorus can be obtained by the following algorithm:yTPP=0.0076xSSC+0.1599,r2=0.720.So the distributive characteristics of suspended sedmients and particulate phosphorus in the Changjiang River Estuary and nearshore were retrived through satelite data.The result suggests that (1) the retrieved concentration distribution accords with the ground trouth,and reflects the actual transport path of ocean current to some extent;(2) the concentration of TPP declines gradually from inshore to offshore;and (3) the a lgorithm is only applicable for Case Ⅱ water,not for Case Ⅰ water.
-
Key words:
- Changjiang Estuary /
- SeaWiFS /
- moldel /
- suspended sedmient /
- total particulate phosphorus
-
宋金明,罗廷馨,李鹏程.渤海沉积物海水界面附近磷与硅的生物地球化学循环模式[J].海洋科学,2000,24(12):30-33. 林昱,林荣澄.厦门西港引发有害硅藻水华磷的阈值研究[J].海洋与湖沼,1999,30(4):391-395. 杨逸萍,宋瑞星,胡明辉.河口悬浮物与海洋近岸表层沉积物中磷的海洋浮游藻类生物测定[J].厦门大学学报(自然科学版),1996,35(4):574-580. FITZGERALD G P.Aerobic lake muds from the removal of phosphorus from lake water[J].Limnol Oceanogr,1970,15:550-555. SAGHER A.Availability of soil runoff phosphorus to algal[D].City of Madison:Wisconsin.University of Wisconsin-Madison,1976. PHILIP N Froelich.Kinetic control of dissolved phosphate in natural rivers and estuaries:a primer on the phosphate buffer mechanism [J].Limnol Oceanogr,1988,33:649-667. 林以安,唐仁友,李炎.长江口区C,N,P的生物地球化学变化对悬浮体絮凝沉降的影响[A].中国主要河口的生物地球化学研究:化学物质的迁移与环境[M].北京:海洋出版社,1996.133-145. 王保栋.长江冲淡水的扩展及其营养盐的输运[J].黄渤海海洋,1998,16(2):41-47. 张平,沈志良.营养盐限制的水域特征[J].海洋科学,2001,25(6):16-19. DUGDALE R C,MOREL A,BRICAND A,et al.Modeling new production in upwelling centers:a case study of modeling new production from remotely sensing temperature and color[J].Journal of Geophysical Research,1989,94:18 119-18 132. 罗滨逊I S.卫星海洋学[M].吴克勤等译.北京:海洋出版社,1989. PATTIARATCHI C,LARERY P,WYLLI A,et al.Estimate of water quality of coastal water using multi-date Landsat thematic mapper data [J].International Journal of Remote Sensing,1994,15(8):1 571-1 584. ARNONE R A,GOULD R W,JR D A,et al.Optics signatures of coastal salinity:linkage with remote sensing ocean color [A].Proceedings of the Sixth International Conference-Remote Sensing for Marine and Coastal Environments:Vol.1 [C].Charleston,South Carolina,USA,2000.28-29. FERRARI G M,DOWELL M D.CDOM absorption characteristics with relation to fluorescence and salinity in coastal areas of the southern Baltic Sea[J].Estuarine,Coastal and Shelf Science,1998,47:91-105. 扈传昱,王正方,吕海燕.海水和海洋沉积物中总磷的测定[J].海洋环境科学,1999,18(3):48-52. 国家海洋局.海洋监测规范[M].北京:海洋出版社,1998. 乐华福,林寿仁,赵太初,等.近海H类海水反射率与表面悬浮物相关性的研究[J].国土资源遥感,2000,43(1):34-39. 陈楚群,潘志林,施平.海水光谱模拟及其在黄色物质遥感反演中的应用[J].热带海洋学报,2003,22(5):33-39. 高抒,程鹏,汪亚平,等.长江口外海域1998年夏季悬沙浓度特征[J].海洋通报,1999,18(6):44-50. MAHER W,WOO L.Procedures for the storage and digestion of natural waters for the determination of filterable reactive phosphorus,total filterable phosphorus and total phosphorus[J].Analytica Chimica Acta,1998,375:5-47. 赵宏宾,刘莲生,张正斌.海水中磷酸盐在固体粒子上阴离子交换作用[J].海洋与湖沼,1997,28(3):294-301. 林荣根,吴景阳.黄河口沉积物对磷酸盐的吸附和释放[J].海洋学报,1994,16(4):82-90. 石晓勇,史致丽,余恒,等.黄河口磷酸盐缓冲机制的探讨:Ⅰ.黄河口悬浮物对磷酸盐的吸附-解吸研究[J].海洋与湖沼,1999,30(2):192-198. 陈松,廖文卓,许爱玉.九龙江口磷的界面分配和转移[J].台湾海峡,1997,16(3):293-298. 沈志良.长江干流营养盐通量的初步研究[J].海洋与湖沼,1997,28(5):522-527. LIN Yi-an,TANG Ren-you,PAN Jian-ming,et al.,Variation of nutrient element and its effect on ecological environment off the Changjiang Estuarine waters[J].Acta Oceanoligica Sinica,2001,20(2):197-207. 韦蔓新,童万平,何本茂.北海湾的化学形态及其分布转化规律[J].海洋科学,2001,25(2):50-53. FRASER A I,HARROD T R,HAYGARTH P M.The effect of rainfall intensity on soil erosion and particulate phosphorus transfer from arable soil[J].Water Science and Technology,1999,39(12):41-45. 章守宇,杨红,刘洪生.东海物质输送及其影响因素分析[J].上海水产大学学报,2000,9(2):152-156. 黄自强,暨卫东.长江口水中总磷、有机磷、磷酸盐的变化特征及相互关系[J].海洋学报,1994,16(1):51-60.
点击查看大图
计量
- 文章访问数: 1737
- HTML全文浏览量: 4
- PDF下载量: 1281
- 被引次数: 0