THEOS Multispectral (Level 1A/ 2A) ProductsEntry ID: THEOS_Multispectral
Abstract: THEOS multispectral products provide 15 meter resolution (at nadir) and 8 bits information depth. All four bands are delivered as one file. The output scene is a square scene of 90 km. x 90 km.
Level 1A - The image data is provided with radiometric correction of non‐uniformities of the detectors of the imaging system. This product is intended for users who will perform their own geometric ... correction processing.
Level 2A - In addition to radiometric correction, this product has geometric correction of systematic effects (panoramic effect, Earth curvature and rotation). Internal distortions of the image are corrected for the imagery to be useful in measuring distances, angles, and surface areas. The imagery is projected to a standard cartographic projection (UTM WGS84 bydefault) using a terrain model but without ground control points.
Data Set Citation
Dataset Originator/Creator: GISTDA
Dataset Title: THEOS Multispectral (Level 1A/ 2A) Products
Dataset Release Date: 2008
Dataset Release Place: Thailand
Dataset Publisher: GISTDAOnline Resource: http://www.gistda.or.th/gistda_n/en/index.php?option=com_content&vi...
Start Date: 2008-10-01
Latitude Resolution: 15 m
Longitude Resolution: 15 m
Horizontal Resolution Range: 1 meter - < 30 meters
ATMOSPHERE > ATMOSPHERIC RADIATION > ALBEDO
BIOSPHERE > VEGETATION
LAND SURFACE > GEOMORPHOLOGY
LAND SURFACE > LANDSCAPE
LAND SURFACE > TOPOGRAPHY
SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS > INFRARED IMAGERY
SPECTRAL/ENGINEERING > INFRARED WAVELENGTHS
SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS > VISIBLE IMAGERY
SPECTRAL/ENGINEERING > VISIBLE WAVELENGTHS
ISO Topic Category
Data Set Progress
Distribution Media: CD-ROM, DVD, and FTP
Distribution Format: Products in DIMAP, image in GeoTiff, and metadata in XML
M. Kaewmanee, T. Choomnoommanee, and R. Fraisse (2006), Thailand Earth Observation System: Mission and Products, Proc. ISPRS Commission I Symposium
Creation and Review Dates
DIF Creation Date: 2011-08-18
Last DIF Revision Date: 2012-04-20