digital surface model with 5 m post spacing
digital surface model
with 5 m post spacing

Merge products combine the advantages of high resolution and multispectral satellite data and provide a unique basis for visual interpretation on cadastral level.

Merges are processed from simultaneously acquired PAN and LISS-III data. The processing includes an automated LISS-III to PAN registration, the calculation of a synthetic blue band and the actual merging using the PCI Pansharp algorithm. The automatically computed Merge has the same geometric properties as the used PAN product. You can choose between a natural colour (bands 3, 2, synthetic blue) or colour infrared (bands 4, 3, 2) Merge.

PAN/LISS-III Merge sample, full resolution
IRS-1D PAN/LISS-III Merge, natural colour, Barcelona, 13-May-2002

Default Parameters

  System Corrected Radiometrically Corrected
North Oriented Path Oriented Path Oriented
Map Projection - UTM -
Ellipsoid - WGS 84 -
Product Resolution (m) - 5.0 5.8
Resampling - Cubic Convolution -
Available Data Formats - TIFF, RAW TIFF, RAW

For a list of available map projections, ellipsoids and so on please check the order form.

Typical Values and Product Samples

Coverage Size (km) Value System Corrected Radiometrically Corrected
North Oriented Path Oriented Path Oriented
70 x 70 Size (MB) - 600 - 650 3 * 173
Size (Pixel) - 15'000 x 14'000 3 * 4'096 x 14'798
23 x 70 Size (MB) - 218 173
Size (Pixel) - 5'000 x 17'000 4'096 x 14'798
Sample - 172 MB, TIFF,
natural colour
 1)
130 MB, TIFF,
colour infrared
 1)

1) To extract the archives use gunzip -c filename | tar xvf - with UNIX or WinZip with Windows.