Title

Merged 1993-96 LANDSAT TM and 1992-96 SPOT Panchromatic Imagery 

Alternate title

TMS2595 

Resource Type

Dataset  

Purpose

The high spatial resolution makes the data very useful as a base for capture of GIS data at 1:25,000 and for local level planning. It is also very useful as a background image in ARCEDIT and ARCPLOT and can be draped over Digital Elevation Models (DEM25). The image layer is a one channel TIF image and would not be suitable for image processing other than for display. 

Credit

R. Frisina, J. White, L. Tran, A. Gilbee, A. Choma (NRS) 

Supplemental Information

Relationship to other Datasets: Because TMS25 incorporates multi-date images it may be useful to maintain an associated metadata set describing the dates used. So far, no practical way of doing this has been developed. Current Design Issues: The high spatial resolution makes the data very useful as a base for capture of GIS data at 1:25,000 and for local level planning. It is also very useful as a background image in ARCEDIT and ARCPLOT and can be draped over Digital Elevation Models (DEM25). The image layer is a one channel TIF image and would not be suitable for image processing other than for display. Future Design Issues: The image tiles are based on the Office of Geographic Data Coordination (OGDC) standard 1:25,000 topographic map series. Some image tiles are in double format. Most are in single format. The image tiles are generated such that the best enhancement for each tile is achieved. This may result in non matching image enhancements across tile boundaries. The image format is uncompressed tagged interchange file format (TIFF). This can easily be used by DOS as well as UNIX software. Note that ARC does not currently support compressed TIFF. Related Documents: None 

Status

Completed  

Time period

1994-12-01 

Spatial representation type

Grid  

Horizontal Accuracy

10m  

N

S

E

W

 

Maintenance and update frequency

Unknown  

Title

DIGITAL Arc/Info Revision 7 Image Catalog (TIFF) 3 

Topic category

• Imagery base maps earth cover

Use limitation

Data is available under licence. 

Classification

Unclassified  

Statement

Dataset Source: Raw data was sourced from ACRES. Dataset Originality: Primary & Derived 

Description

Collection Method: Remotely Sensed - Satellite 

Description

Geometric correction of LANDSAT and SPOT to AMG; Co-registration of LANDSAT to SPOT; Brovey Transformation; Linear contrast enhancement; Subsetting of images to into 1:25,000 tiles. 

Classification

Unclassified