City of Hamilton colour orthomosaic 1999 and 2002

Description

1999

This data resource consists of several hundred georeferenced orthoimages compressed and mosaicked as a set of 8 MrSID image mosaics. Aerial photography was flown in 1999. Pixel resolution is 12.5 cm. These mosaics were provided to the Library by the City of Hamilton in 2002. The city also provided a 1999 ortho index (PDF) to these images.

2002

This data resource consists of several hundred georeferenced orthoimages compressed and mosaicked as a set of 9 MrSID image mosaics. Aerial photography was flown in Spring 2002. Pixel resolution is 20 cm. A 2002 ortho index (PDF) is available for these images.

Spatial reference and data type

These images are available in Universal Transverse Mercator (UTM) co-ordinates; horizontal datum is North American Datum (NAD) 83, UTM 6 degree Zone 17. These images are stored as MrSID image format with accompanying Sid World (SDW) files. Other data formats can be accommodated, as the Geospatial Centre has access to a number of conversion utilities.

Data access

In order to access these mosaics, please visit the Geospatial Centre reference desk during reference hours. Library reference staff are available to provide further information about these data sets and to deliver data upon request. Under the terms of the library's license agreement with the City of Hamilton, these data sets are for use by students, faculty, and staff at the University of Waterloo only.

Data manipulation

There are public workstations in the Geospatial Centre that provide access to Geographic Information System (GIS) software, program extensions and data manipulation utilities. Patrons may use the GIS software in the library to view and manipulate the data. UWaterloo faculty, students and staff may copy these data to other media (Zip disk or CD-R) for use elsewhere.

Data output

ArcMap is able to export images as georeferenced TIFF extensions. The mosaics may also be printed as a map view using one of the library's colour printers.

Use restrictions/licensing/copyright

This material is provided for academic, research, teaching, and personal use only. A data release agreement must be agreed to before the data is delivered. The City of Hamilton should be acknowledged on any derivative product, such as a map or an image.