Data: FROM-GLC

Introduction

Global land cover data are key sources of information for understanding the complex interactions between human activities and global change. FROM-GLC (Finer Resolution Observation and Monitoring of Global Land Cover) is the first 30 m resolution global land cover maps produced using Landsat Thematic Mapper (TM) and Enhanced Thematic Mapper Plus (ETM+) data. Our long-term goal in FROM-GLC is to develop a multiple stage approach to mapping global land cover so that the results can better meet the needs of land process modeling and can be easily cross-walked to existing global land cover classification schemes.

Data Download.

FTP Address.

Data

下载数据有一点问题，投影信息不正确，坐标信息是正确的。这里可以用MODIS数据投影做一补充。

附件里包含演示数据，下面是一般过程。

打开一个空白的Arcmap文件，里面不包含任何空间信息。依次添加数据h4.tif，再是FROM-GLC_30mTile_h27v05_50km_Majority.tif，再加入Code/ne_10m_admin_0_countries.shp，注意这里顺序不能变化，h4文件必须是第一个加进来的文件，初始化Arcmap空间投影设定，矢量文件用来验证FROM-GLC_30mTile_h27v05_50km_Majority.tif文件位置是否准确。

按照上面的顺序，结果如Fig. 1。

Fig. 1

这个顺序安排的目的在于给FROM-GLC_30mTile_h27v05_50km_Majority.tif补上缺失的投影信息，它本身只剩下坐标信息是正确的。

再讲讲FROM-GLC_30mTile_h27v05_50km_Majority.tif文件的正确输出，右键文件选择Data—>Export Data，注意窗口上选择Data Frame (Current)，输出为有正确投影信息及坐标信息的文件。

Fig. 2

File.rar.

References

[1] FROM-GLC (Finer Resolution Observation and Monitoring of Global Land Cover).