OrbView Imagery

Description

The ORBIMAGE imagery donated by GeoEye and provided by GLCF is made available in its native format. An individual scene can be acquired in multispectral (4m), panchromatic (1m) or in stereo through multiple acquisitions (Figure 1). Table 1 details the specific wavelengths covered by each band. The acquisitions have been radiometrically corrected and are provided with satellite telemetry and post-processed GPS points for user orthorectification. The images are provided as GeoTIFF mosaics and should be compatible with most GIS, remote sensing and imaging software. The projection is UTM. All scenes are delivered as 8-bit (not 11-bit) files, for ease of use.

orbview

Figure 1. Global Biomass

Table 1: OrbView-3 Specifications
Imaging Mode Panchromatic Multispectral
Spatial Resolution 1 meter 4 meter
Imaging Channels 1 channel 4 channels
Spectral Range 450 - 900 Ám 450-520 Ám
520-600 Ám
625-695 Ám
760-900 Ám
Swath Width 8 km
Image Area User Defined
Revisit Time Less than 3 days
Orbital Altitude 470 km
Nodal Crossing 10:30 A.M.
System Life Minimum 5 years

The Global Land Cover Facility also appreciates the donation of imagery by GeoEye for the tsunami assessment effort (Figure-2). All users should be aware that this quality imagery does not usually have free access, and that GeoEye are generous in their gift.

ikonos

Figure 2.Imagery overview of the immediate aftermath of the tsunami in Sri Lanka.

OrbView Imagery
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