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WANG Zemin 《地球空间信息科学学报》2003,6(1):74-76
Ｔｉｔｌｅ :ＤｉｓｃｏｎｔｉｎｕｏｕｓＤｅｆｏｒｍａｔｉｏｎＡｎａｌｙｓｉｓａｎｄＲｅｃｅｎｔＣｒｕｓｔａｌＭｏｖｅｍｅｎｔＡｕｔｈｏｒ:ＷＡＮＧＺｅｍｉｎＳｕｐｅｒｖｉｓｏｒ:ＬＩＵＪｉｎｇｎａｎＴｈｅｓｔｕｄｙｆｏｃｕｓｅｓｏｎｔｈｅｗａｉｔ＿ｔｏ＿ｂｅ＿ｒｅｓｏｌｖｅｄｉｍ ｐｏｒｔａｎｔｄｉｆｆｉｃｕｌｔ ｐｒｏｂｌｅｍ—ｈｏｗｔｏａｎａｌｙｚｅａｎｄｐｒｏｃｅｓｓｔｈｅｎｕｍｅｒｏｕｓｄａｔａｏｆｃｒｕｓｔａｌｍｏｖｅｍｅｎｔｇａｉｎｅｄｂｙｒｅｃｅｎｔｍｅａｓｕｒｉｎｇｍｅｔｈｏｄｓｏａ… 相似文献
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Comment on ‘Positional accuracy of the Google Earth terrain model derived from stratigraphic unconformities in the Big Bend region, Texas, USA’ by S.C. Benker, R.P. Langford and T.L. Pavlis (Geocarto Int. 26:291–303, doi: 10.1080/10106049.2011.568125). 相似文献
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以蕲春县1990年至2002年人口变化动态地图的制作过程为例,详细介绍了使用Corel R.A.V.E.制作动态地图的主要方法。 相似文献
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《地球空间信息科学学报》2002,(4)
Ｎｏ .1ＴｈｅＴｅｃｈｎｉｑｕｅＩｎｔｅｇｒａｔｉｏｎｏｆｔｈｅＳｐａｔｉａｌＩｎｆｏｒｍａｔｉｏｎａｎｄＭｏｂｉｌｅＣｏｍｍｕｎｉｃａｔｉｏｎ (1)…………………………………………………ＬＩＤｅｒｅｎ ＬＩＱｉｎｇｑｕａｎ ＸＩＥＺｈｉｙｉｎｇ ＺＨＵＸｉｎｙａｎＲｅｓｅａｒｃｈａｎｄＤｅｖｅｌｏｐｍｅｎｔｆｏｒＩＴＵ＿ＴＨ .3 2 4ＲｅｃｏｍｍｅｎｄａｔｉｏｎＣｏｍ ｐｌｉａｎｔＶｉｄｅｏｐｈｏｎｅＳｙｓｔｅｍ (9)………………………………………ＨＵＲｕｉｍｉｎ ＬＩＤｅｒｅｎ ＹＵＺｈａｎｗｕ Ｓ… 相似文献
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《地球空间信息科学学报》2003,(3)
Ph .DDUQingyun ,aprofessorofCartographyandGIS ,isadeputydirectorofSchoolofRe sourceandEnvironmentScience ,WuhanUniver sity .HeheldaB .A .andM .S .inCartographyfromWuhanTechnicalUniversityofSurveyingandMappingandPh .DinCartographyandGISfromWuhanUniversity .Hehasplayedaleadingrolenationallyintheresearchonconceptualmodelofgeographicalinformation ,digitalmappingandmultimediaelectronicmapsystem .Prof.DUQingyunservedasamemberoftheInternationalCartographicAssociationCommissiononMapUse… 相似文献
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Monitoring agricultural land is important for understanding and managing food production, environmental conservation efforts, and climate change. The United States Department of Agriculture's Cropland Data Layer (CDL), an annual satellite imagery-derived land cover map, has been increasingly used for this application since complete coverage of the conterminous United States became available in 2008. However, the CDL is designed and produced with the intent of mapping annual land cover rather than tracking changes over time, and as a result certain precautions are needed in multi-year change analyses to minimize error and misapplication. We highlight scenarios that require special considerations, suggest solutions to key challenges, and propose a set of recommended good practices and general guidelines for CDL-based land change estimation. We also characterize a problematic issue of crop area underestimation bias within the CDL that needs to be accounted for and corrected when calculating changes to crop and cropland areas. When used appropriately and in conjunction with related information, the CDL is a valuable and effective tool for detecting diverse trends in agriculture. By explicitly discussing the methods and techniques for post-classification measurement of land-cover and land-use change using the CDL, we aim to further stimulate the discourse and continued development of suitable methodologies. Recommendations generated here are intended specifically for the CDL but may be broadly applicable to additional remotely-sensed land cover datasets including the National Land Cover Database (NLCD), Moderate Resolution Imaging Spectroradiometer (MODIS)-based land cover products, and other regional, national, and global land cover classification maps. 相似文献
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<正> P.V.Aagus-Leppan教授是新当选的国际大地测量协会主席,任期四年(1983—1987年)。该职务首次由澳大利亚人担任,也是首次由欧洲或北美以外的人担任。P.V.Angus-Lsppan教授是在1983年8月于汉堡举行大会期间当选的。上一届会议是1979年12月于堪培拉召开的,他在那次会议上当选为组织委员会主席。P.V.Angus-Leppan教授是新南威尔士 相似文献
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本书是苏联测绘科学的权威著作。著者克拉索夫斯基教授是苏联杰出的大地测量学家,由于他一生辛勤卓越的供献,曾荣任苏联科学院通信院士,著名的克拉索夫斯基椭圆体即为克氏所推算,并因此而获得斯大林奖金。达尼洛 相似文献
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