SPOT5数据东沙环礁珊瑚礁遥感能力分析

陈建裕; 毛志华; 张华国; 吴均平; 陈晓东; 潘德炉

SPOT5数据东沙环礁珊瑚礁遥感能力分析

国家海洋局, 第二海洋研究所, 卫星海洋环境动力学国家重点实验室, 浙江, 杭州, 310012

基金项目: “908”专项(我国近海海洋综合调查与评价)试点项目——东沙群岛遥感调查;“908”专项资助项目(908-01-wy03);国家“863”计划资助项目(2003AA783055);国家自然科学基金资助项目(40606040);浙江省自然科学基金资助项目(506188)

计量
- 文章访问数: 1023
- HTML全文浏览量: 13
- PDF下载量: 1551
- 被引次数: 0
出版历程
- 收稿日期: 2006-06-27
- 修回日期: 2006-10-16

Analysis on coral reefs mapping using SPOT5 at Dongsha Atoll

State Key Laboratory of Satellite Environment Dynamics, Second Institute of Oceanography, State Oceanic Administration, Hangzhou 310012, China

摘要

摘要: 对于大面积的大比例尺珊瑚礁遥感制图而言,SPOT5数据是一种高性价比卫星遥感资料.以Quickbird2数据对东沙环礁珊瑚礁的分类、解译的矢量结果作为该区域实际的珊瑚礁分布,以此为基础分析SPOT5数据的珊瑚礁遥感制图能力.SPOT5只有两个水体穿透信道,从基于光谱数据的分类角度看,以XS1通道为准的珊瑚礁信息提取易将高反射的沙底质归为珊瑚礁;以XS2通道为准的珊瑚礁分布制图存在提取不足问题.由于空间分辨率提高,对潟湖淤泥质中的珊瑚礁提取能力较强,要优于ETM数据.结合ETM数据及PCA融合后的SPOT5的遥感解译结果,能提高SPOT5数据的制图能力.
- 珊瑚礁遥感 /
- 东沙环礁 /
- SPOT5 /
- 遥感制图 /
- Quickbird2
Abstract: Coral reefs are an environment-sensitive complex marine ecosystem.The ecosystem of corals is rich in biodiversity.Remote sensing offers a powerful tool for categorizing coral reefs and is the most effective approach for large-scale reef surveys.The Dongsha Atoll is located on the northern continental margin of the South China Sea.The area of the atoll is more than 300 km² with an average depth of 10 m,and has being abused by destructive fishing during recent decades.the capabilities of SPOT5 imagery are evaluated to provide data that are useful for categorizing the current distribution of corals in the Dongsha Atoll.Three satellite imageries (Quickbird2,ETM+,and SPOT5) are used to survey this area.In data processing,unsupervised classification functions are adopted for ETM+ and SPOT5 data,and a supervised classification method is used for Quickbird2.The classes are (or not) merged into coral reef,and then will be operated by vectorization,simplification,and to pological analysis.There are 1331 coral reefs larger than 100 m² with the detection limitation of 3×3 pixels at multi-band data of Quickbird2.This is taken as the comparison-baseline.The results extracted from SPOT5 and ETM images are less in number and area than from Quickbird2 image.And the results from SPOT5 data are better than those of ETM data at silty lagoon due to its higher resolution.SPOT XS Band2 is failed to show the deep substrate inside the atoll comparing with ETM data because of its penetration capability.Only SPOTXS Band 1 cannot differentiate coral reef from sand bottom.Merging the spectral qualities of SPOT5 multi-bands data with the spatial resolution of SPOT5 Pan data and referring to ETM imagery are expected to provide an optimum satellite-based approach to habitat mapping.
- coral reefs /
- Dongsha Atoll /
- SPOT5 /
- Quickbird /

HTML全文

参考文献(29)

林敏基,等.海南岛琼东珊瑚礁水下地形卫星遥感探测测绘模式研究报告.国家海洋局第三海洋研究.1995.

台湾省高雄市政府海洋局.东沙环礁海域侧扫声呐水下探测研究报告书.2004.

影视资料《东沙生态》.台湾中研院郑明修博士提供.www.cga.gov.tw/south/dongsha/video.asp

PHINN S R,MENGES C,HILL G T E,et al.Optimizing remotely sensed solutions for monitoring,modeling,and managing coastal environments[J].Remote Sensing of Environment,2000,73:117-132.

MUMBY P J,EDWARDS A J.Mapping marine environments with IKONOS imagery:enhanced spatial resolution can deliver greater thematic accuracy[J].Remote Sensing of Environment,2000,82:248-257.

WANG Li,SOUSA W,GONG Peng,et al.Comparison of IKONOS and QuickBird images for mapping mangrove species on the Caribbean coast of Panama[J].Remote Sensing of Environment,2004,91:432-440.

OZESMI S L,BAUER M E.Satellite remote sensing of wetland[J].Wetland Ecology and Management,2002,10:381-402.

WENG Qi-hao.Land use change analysis in the Zhujiang Delta of China using satellite remote sensing,GIS and stochastic modeling[J].Journal of Environmental Management,2002,64:273-284.

MUMBY P J,GREEN E P,EDWARDS A J,et al.Coral reef habitat mapping:how much detail can remote sensing provide?[J].Marine Biology,1997,130:193-202.

HU Jia-min,MOHAMED Faiz.Mapping the Central Atoll of Maldives using Landsat TM data[J].Asia-Pacific Remote Sensing Journal,1990,3(1):97-110.

赵焕庭,温孝胜.南沙群岛珊瑚礁自然特征[J].海洋学报,1996,18(5):61-70.

刘宝银,王岩峰.南沙珊瑚环礁的遥感复合信息熵与类型[J].海洋学报,2000,22(1):43-51.

HOLDEN H,LEDREW E.Spectral discrimination of healthy and non-healthy corals based on cluster analysis,principal components analysis,and derivative spectroscopy[J].Remote Sensing of Environment,1998,65:217-224.

PALANDRO D,ANDREFOUET S,MULLER-KARGER F,et al.Detection of changes in coral communities using Landsat 5/TM and Landsat 7/ETM+ data[J].Canadian Journal of Remote Sensing,2003,29(2):201-209.

HOCHBERGA E J,MARLIN J A,ANDREFOUET S.Spectral reflectance of coral reef bottom-types worldwide and implications for coral reef remote sensing[J].Remote Sensing of Environment,2003,85:159-173.

HIROYA Yamano,MASAYUKI Tamura.Detection limits of coral reef bleaching by satellite remote sensing:simulation and data analysis[J].Remote Sensing of Environment,2004,90:86-103.

ANDRÉFOUÉT S,BERKELMANS R,ODRIOZOLA L,et al.Choosing the appropriate spatial resolution for monitoring coral bleaching events using remote sensing[J].Coral Reefs,2002,21:147-154.

ANDRÉFOUÉT S,KRAMERB P,TORRES P D,et al.Multi-site evaluation of IKONOS data for classification of tropical coral reef environments[J],Remote Sensing of Environment,2003,88:128-143.

BOUVET G,FERRARIS J,ANDREFOUET S.Evaluation of large-scale unsupervised classification of New Caledonia reef ecosystems using Landsat 7 ETM+ imagery[J].Oceanologica Acta,2003,26:281-290.

MUMBY P J,SKIRVING W,STRONG A E.Remote sensing of coral reefs and their physical environment[J].Marine Pollution Bulletin,2004,48:219-228.

MA Ting YING H.On the Growth of reef Corals and Its Relation to the Sea Water Temperature[M].Nanking:The National Institute of Zoology and Botany,Academia Sinica,1937.1.

DAI Chang-feng,FAN Tung-yung,WU Cheng-shi.Coral fauna of Tungsha Tao (Pratas Islands)[J].Acta Oceanogr Taiwanica,1995,34:1-16.

LI Jan-jung,LEE Tsaifu,TEW Kweesiong,et al.Changes in the coral community at Dong-Sha Atoll,South China Sea from 1975 to 1998[J].Acta Zoologica Taiwanica,2000,11(1):1-15.

刘金源,陈阳益,王玉怀,等.东沙环礁水下探测[J].海洋技术,2004,14(3):20-28.

THOMSON A G.Supervised versus unsupervised methods for classification of coasts and river corridors from airborne remote sensing[J].International Journal of Remote Sensing,2003,19(17):3 423-3 431.

KATHERINE A C,JOHN T H,DAVID O W.Coral reef habitat discrimination using multi-variate spectral analysis and satellite remote sensing[J].International Journal of Remote Sensing,2003,24(13):2 627-2 639.

HOCHBERGA E J,ATKINSONA M J.Capabilities of remote sensors to classify coral,algae,and sand as pure and mixed spectra[J].Remote Sensing of Environment,2003,85:174-189.

LYZENGA D R.Remote sensing of bottom reflectance and water attenuation parameters in shallow water using aircraft and Landsat data[J].International Journal of Remote Sensing,1981,2(1):71-82.

DAN Lu-bin,WEI L I,PHILLIP D,et al.Spectral signatures of coral reefs:features from space[J].Remote Sensing of Environment,2001,75:127-137.

施引文献

资源附件(0)

访问统计