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f/通讯与导航 • 2008-07-29 15:33
BG1UPB

国家测绘局公开的基础地图 + SRTM3 v4制作地形图

最近有两个比较好的消息，国家测绘局公开了最大1比400万的基础地图，SRTM3也升级为4.0。
想把两者结合起来作一幅全国范围的地形图。

下载了全部中国境内的4.0 SRTM3数据（大约2.2GB），用了一晚上的时间输出成1份全国范围30秒精度的DEM文件（250MB左右），用来做地形示意图精度上大体是够了。

从国家测绘局下载的EPS矢量文件没有经纬信息。
请教各位DX，国家测绘局公布的这些地图使用的投影方式（是否为等积圆锥投影）具体数值各是多少？
以便在Global Mapper中合成前边生成的地形DEM数据。

曾尝试一个笨办法。
用OZI校准国家测绘局公布的地图，然后用得到经纬度信息和输出参数在Global Mapper中输出渲染地形图。
结果因为引入的误差太大，校准点周围勉强可用，偏离校准点稍远一点甚至误差数十千米。
OZI可设置的校准点有限，即便可以设置大量校准点，工作量也显得过大。xx(

:)2008.8.3补充：问题初步解决，见16楼

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工兵pro • 2008-07-30 05:33

SRTM 4.0是哪家的？

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独自等待 工兵pro • 2008-07-30 06:27

只是SRTM V3的升级版，在这里可以下载到：http://srtm.csi.cgiar.org/

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BG1UPB OP 工兵pro • 2008-07-30 10:46

我从这里下载的
http://srtm.csi.cgiar.org/SELECTION/inputCoord.asp
只有HTTP一种下载方式
都是TIF格式，感觉比v3补了些漏洞

比如SRTM v3北京延庆黄土梁东南数据缺一块，v4就补上了。
西南地区（川西、云贵）和西部还有很多漏洞，不过比以前好了很多。

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工兵pro • 2008-07-30 07:20

NASA的网站上只有V1,V2,cgiar补了洞，自称也只是V3,什么地方写的V4？

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独自等待 • 2008-07-30 08:48

UPDATE - VERSION 4: THE SRTM DATA NOW AVAILABLE FROM THIS SITE HAS BEEN UPGRADED TO VERSION 4. THIS LATEST VERSION REPRESENTS A SIGNIFICANT IMPROVEMENT FROM PREVIOUS VERSIONS, USING NEW INTERPOLATION ALGORITHMS AND BETTER AUXILIARY DEMs. WE ARE CONFIDENT THIS IS NOW THE HIGHEST QUALITY SRTM DATASET AVAILABLE

介绍是这么写的。漏洞修补可以用SRTMFill Utility，采用差值填充

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工兵pro • 2008-07-30 09:03

更新好快啊
原始SRTM到底缺了哪些区域我都不清楚，V4有明显不同吗？

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ab10 • 2008-07-30 10:16

看就清楚.
v3版

v4版

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ab10 • 2008-07-30 10:27

原图缺失很多.特别在高山

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ab10 • 2008-07-30 10:34

修补最好的

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独自等待 • 2008-07-30 15:19

也可以用ftp://srtm.csi.cgiar.org/srtm_v4，有多种格式下载，且速度较快，但不带校验有些文件下载不了。

http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_60_02.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_61_02.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_62_02.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_52_03.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_53_03.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_54_03.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_55_03.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_59_03.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_60_03.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_61_03.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_62_03.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_63_03.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_64_03.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_51_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_52_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_53_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_54_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_55_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_56_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_57_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_58_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_59_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_60_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_61_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_62_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_63_04.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_51_05.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_52_05.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_53_05.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_54_05.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_55_05.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_56_05.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_57_05.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_58_05.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_59_05.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_60_05.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_61_05.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_52_06.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_53_06.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_54_06.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_55_06.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_56_06.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_57_06.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_58_06.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_59_06.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_60_06.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_61_06.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_53_07.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_54_07.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_55_07.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_56_07.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_57_07.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_58_07.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_59_07.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_60_07.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_61_07.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_56_08.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_57_08.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_58_08.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_59_08.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_60_08.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_61_08.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_58_09.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_59_09.ZIP
http://hypersphere.telascience.org/elevation/cgiar_srtm_v4/tiff/zip/srtm_60_09.ZIP

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东北老哥 • 2008-07-30 16:18

楼上近些资源值得收藏。谢谢了……

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工兵pro • 2008-07-31 02:19

看来还值得更新

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magellanx • 2008-08-01 22:36

你的地形图做得不错啊，能不能提供一下或者介绍一下制作方法？谢谢了。

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BG1UPB OP • 2008-08-02 08:48

问题解决！

今天跑去书店买书。发现有一张大全开幅面的卫星影像图上标有投影参数，估计中国的图都是国家测绘局统一的标准吧。回来一试，基本还行

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BG1UPB OP • 2008-08-03 09:45

经过一番试验，做了一份地形图。

投影设置为以下值就能在OZI中校准：
Albers Conic Equal Area
standard parallel1: 25° N
standard parallel2: 47° N
central meridian: 110° E
latitude of origin: 10° N

国家测绘局公布的《1:400万 中国自然地理图》叠加 SRTM渲染的地形图。

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工兵pro • 2008-08-04 04:30

做得不错

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magellanx • 2008-08-04 23:59

看不到你做的地形图。

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aidm • 2008-10-09 02:03

楼主，有没有800万高清版的合成图啊，有的话能不能发给我啊。真的很想很想要啊。我的邮箱aidmwong@gmail.com

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东北老哥 • 2009-10-23 07:42

存个地址，方便查询：

SRTM数据，国科学院镜像站点下载:

http://srtm.datamirror.csdb.cn/search.jsp
(20111102：该连接已失效)

这是原数据的网址：
http://srtm.csi.cgiar.org/SELECTION/inputCoord.asp

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wangdongran123 • 2017-05-02 09:03

怎么才能下载