1.10   Summary and conclusions

You have now finished the first section of the introductory tutorial, and should be familiar with how the Bilko software handles different types of image data, from simple 8-bit image grids (GIF, BMP) to the more advance hierarchical files used to store remote sensing data (HDF, NetCDF, N1).

You should also understanding of how a grid of numerical data is organised in rows and columns to make up an image, and how geophysical data values may be represented by different numerical formats (8-bit, 16-bit and 32-bit integers, and 32-bit float), and .

Finally you should have some understanding of how the numerical data in an image file are mapped to the 8-bit display you see on your computer. Don't worry however, if your understanding of this is a bit hazy - we will cover it in more detail in Section 3 of the tutorial.

Note: In the next section you will use three of the images you have worked with so far - the ATSR image from January 1997, the ATS~DSST data from January 2003, and and the btemp_nadir_1100 band from the Envisat AATSR Africa scene. If you have not already done so, please close all other windows.