海洋科学
海洋科學
해양과학
MARINE SCIENCES
2014年
6期
60-64
,共5页
MODIS(MODerate-resolution Imaging Spectroradiometer)%渤海%海冰%变化分析
MODIS(MODerate-resolution Imaging Spectroradiometer)%渤海%海冰%變化分析
MODIS(MODerate-resolution Imaging Spectroradiometer)%발해%해빙%변화분석
MODIS (MODerate-resolution Imaging Spectroradiometer)%the Bohai Sea%sea ice%variation analysis
海冰是影响渤海冬季海运的严重灾害,研究年度周期内海冰时空变化具有重要意义。依据研究内容选择11期具有代表性的中分辨率成像光谱仪(MODerate-resolution Imaging Spectroradiometer, MODIS)影像数据,采用ENVI(The Environment for Visualizing Images)软件进行预处理,利用目视解译方法提取海冰面积与空间位置信息,采用ArcGIS软件制作了海冰时空变化图、海冰结冻与融化过程变化图。最后,对海冰面积变化、海冰结冻与融化过程进行了详细分析。研究结果表明,利用MODIS影像进行年度周期内海冰变化分析技术方法是可行的。
海冰是影響渤海鼕季海運的嚴重災害,研究年度週期內海冰時空變化具有重要意義。依據研究內容選擇11期具有代錶性的中分辨率成像光譜儀(MODerate-resolution Imaging Spectroradiometer, MODIS)影像數據,採用ENVI(The Environment for Visualizing Images)軟件進行預處理,利用目視解譯方法提取海冰麵積與空間位置信息,採用ArcGIS軟件製作瞭海冰時空變化圖、海冰結凍與融化過程變化圖。最後,對海冰麵積變化、海冰結凍與融化過程進行瞭詳細分析。研究結果錶明,利用MODIS影像進行年度週期內海冰變化分析技術方法是可行的。
해빙시영향발해동계해운적엄중재해,연구년도주기내해빙시공변화구유중요의의。의거연구내용선택11기구유대표성적중분변솔성상광보의(MODerate-resolution Imaging Spectroradiometer, MODIS)영상수거,채용ENVI(The Environment for Visualizing Images)연건진행예처리,이용목시해역방법제취해빙면적여공간위치신식,채용ArcGIS연건제작료해빙시공변화도、해빙결동여융화과정변화도。최후,대해빙면적변화、해빙결동여융화과정진행료상세분석。연구결과표명,이용MODIS영상진행년도주기내해빙변화분석기술방법시가행적。
Sea ice is one of the severe hazards affecting sea transportation of the Bohai Sea in winter. It is extremely urgent to investigate spatio-temporal annual distributions of sea ice by satellite remote sensing and geographic information system. Eleven typical MODIS imageries were selected and preprocessed with ENVI software. Sea ice distribution area and spatial pattern were retrieved by using visual interpretation method. The sea ice spatial distribution map, spatio-temporal distribution map, and the processing map from sea ice to melt sea water were made using ArcGIS software. The changes of sea ice area and the melting process of sea ice were discussed in detail. Research results showed that it was feasible to analyze annual sea ice distribution changes by MODIS imageries.
