地球信息科学学报 ›› 2016, Vol. 18 ›› Issue (5): 690-698.doi: 10.3724/SP.J.1047.2016.00690
收稿日期:
2015-12-15
修回日期:
2016-02-22
出版日期:
2016-05-10
发布日期:
2016-05-10
作者简介:
作者简介:沈占锋(1977-),男,黑龙江大庆人,研究员,研究方向为遥感信息提取与高性能计算。E-mail:
基金资助:
SHEN Zhanfeng1,*(), LI Junli2, YU Xinju1
Received:
2015-12-15
Revised:
2016-02-22
Online:
2016-05-10
Published:
2016-05-10
Contact:
SHEN Zhanfeng
E-mail:shenzf@radi.ac.cn
摘要:
白洋淀湿地是华北平原仅存的为数极少的湖泊型湿地之一,具有改善生态环境、保护生物多样性等功能。通过遥感手段进行白洋淀地区湿地变化研究,可为景观格局变化、生态环境分析及湿地保护等提供重要的信息支撑,具有非常重要的意义。本文在分析遥感大数据特点的基础上,对遥感应用中的大数据信息提取这一重要环节进行了分析,并以遥感信息计算为切入点,深入分析并总结了遥感大数据计算过程中的多种协同计算问题。结合白洋淀地区长时相遥感湿地水体提取与变化分析的应用需求,本文提出了基于协同计算方式下的白洋淀水体提取技术路线,并详细分析了水体信息计算过程中的几种重要的协同计算问题,提高了水体信息提取的精度。最后,根据白洋淀地区43期(1973-2015年)精确的水体提取信息,统计了白洋淀历史时期水体面积的变化,并指出该区域自1973年以来水体面积经历了“减少-增加-再减少-再增加”的变化过程。
沈占锋, 李均力, 于新菊. 基于协同计算的白洋淀湿地时序水体信息提取[J]. 地球信息科学学报, 2016, 18(5): 690-698.DOI:10.3724/SP.J.1047.2016.00690
SHEN Zhanfeng,LI Junli,YU Xinju. Water Information Extraction of Baiyangdian Wet Land Based on the Collaborative Computing Method[J]. Journal of Geo-information Science, 2016, 18(5): 690-698.DOI:10.3724/SP.J.1047.2016.00690
表1
白洋淀地区水体提取数据应用一览表"
时间 | 传感器 | 轨道号 | 时间 | 传感器 | 轨道号 | 时间 | 传感器 | 轨道号 |
---|---|---|---|---|---|---|---|---|
1973-12-08 | MSS | P132R033 | 1988-12-25 | TM | P123R033 | 2003-04-15 | TM | P123R033 |
1974-03-27 | MSS | P133R033 | 1989-02-11 | TM | P123R033 | 2004-04-01 | TM | P123R033 |
1975-03-12 | MSS | P132R033 | 1990-07-16 | TM | P123R033 | 2005-03-19 | TM | P123R033 |
1976-11-14 | MSS | P133R033 | 1991-04-30 | TM | P123R033 | 2006-04-07 | TM | P123R033 |
1977-03-02 | MSS | P133R033 | 1992-04-16 | TM | P123R033 | 2007-04-10 | TM | P123R033 |
1978-01-19 | MSS | P132R033 | 1993-03-02 | TM | P123R033 | 2008-04-04 | ETM+ | P123R033 |
1979-04-15 | MSS | P133R033 | 1994-02-01 | TM | P123R033 | 2009-03-14 | TM | P123R033 |
1980-11-10 | MSS | P132R033 | 1995-04-25 | TM | P123R033 | 2010-03-25 | ETM+ | P123R033 |
1981-02-26 | MSS | P132R033 | 1996-04-27 | TM | P123R033 | 2011-04-13 | ETM+ | P123R033 |
1982-04-08 | MSS | P133R033 | 1997-03-29 | TM | P123R033 | 2012-05-17 | ETM+ | P123R033 |
1983-04-16 | MSS | P123R033 | 1998-04-17 | TM | P123R033 | 2013-05-12 | OLI | P123R033 |
1984-05-12 | TM | P123R033 | 1999-03-03 | TM | P123R033 | 2014-05-15 | OLI | P123R033 |
1985-05-07 | MSS | P123R033 | 2000-04-23 | TM | P123R033 | 2015-05-18 | OLI | P123R033 |
1986-03-31 | TM | P123R033 | 2001-03-08 | TM | P123R033 | |||
1987-07-08 | TM | P123R033 | 2002-03-27 | TM | P123R033 |
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