Satellite Imagery
The selection and availability of high resolution satellite imagery today
provides an affordable database for applications such as:
Mineral
exploration- Forest management
- Agricultural monitoring
- Crop forecasting
- Environmental monitoring
- Land Use Management
- Disaster planning
McElhanney are licensed distributors of optical and radar satellite imagery.
Optical satellite imagery is used for applications which require interpretation
based on the colour, or spectral reflectance, of features from different
parts of the electromagnetic spectrum. Some examples are natural colour
images for urban maps and colour infrared images for detecting insect
infestation in trees. Radar satellite imagery is used for areas with constant
cloud cover, fog or haze, or require near-real time images for disasters
such as forest fires and oil spills. Some of the factors to consider when
selecting satellite imagery are listed in the tables below. Let us use
our expertise to help you select the appropriate image for your needs.
McElhanney now distributes high-resolution SPOT-5 and EROS satellite imagery.
EROS 1A is the first high resolution satellite by ImageSat International.
EROS 1A provides ground resolutions of 1.0 or 1.8m. EROS 1A satellite
imagery provides users with detailed, aerial photographic quality images,
and at the same time, the price, coverage, and accessibility of satellite
imagery. The EROS 1A satellite can also image in stereo for detailed mapping
work. McElhanney distributes EROS 1A satellite imagery in North America.
Price for a standard scene is US $1500 (covering 12.5 x 12.5 km at a ground
resolution of 1.8m), plus shipping and taxes.
Example uses for EROS Imagery:
The exploration geologist that needs a highly detailed image for a project area that has no air photo coverage.
- The cartographer that needs to produce a high resolution Digital Elevation Model (DEM).
- The natural resource manager that needs to update, or increase the detail in vegetation or topography for Provincial/State government maps.
- Provincial/State or federal government emergency preparedness mapping for forest fire, floods or other natural disasters.
EROS Image. Ottawa, Ontario. 1.8m ground resolution. October 2001.
View more EROS image examples.
Satellite Imagery Details
|
Satellite
|
Ground Resolution
|
Spectral Bands
|
Swath Width
|
Repeat Cycle
|
Archive
|
| SPOT 1-4 | 10m panchromatic 20m multispectral |
1 panchromatic 3 multispectral |
60 km | 26 days | Since 1986 |
| SPOT 5 | 2.5m, 5.0m panchromatic 3 at 10m multispectral 1 at 20m multispectral |
1 panchromatic 4 multispectral |
60 km | 26 days | Since 2002 |
| LANDSAT MSS | 80m multispectral scanner | 4 multispectral | 185 km | 16 days | Since 1973 |
| LANDSAT TM | 30m thematic mapper | 7 multispectral | 185 km | 16 days | Since 1984 |
| LANDSAT ETM | 30m thematic mapper 15m panchromatic |
7 multispectral 1 panchromatic |
185 km | 16 days | Since 1999 |
| EROS | 1.8m panchromatic | 1 panchromatic | 12.5 x 12.5 km | Variable | In process |
| IRS P | 5.8m | 1 panchromatic | 23 - 70.5 km | 24 days | Since 1996 |
| IRS LISS-3 | 23.5m | 4 multispectral | 70 - 41 km | 24 days | Since 1996 |
| IRS WiFS | 188m | 2 multispectral | 774 km | 5 days | Since 1996 |
| IKONOS | 1m panchromatic 4m multispectral |
1 panchromatic 4 multispectral |
Not applicable | Variable | Since 1999 |
| QuickBird | 0.61m panchromatic 2.44m multispectral |
1 panchromatic 4 multispectral |
Not applicable | Variable | Since 2001 |
|
Satellite
|
Resolution
|
Incidence Angle
|
Swath Width
|
Repeat Cycle
|
Archive
|
| RADARSAT | 8-100m | 10 to 60 degrees | 50 to 500 km | 24 days | Since 1996 |
| ERS | 25m | 20 to 26 degrees | 100 km | 35 days | Since 1973 |
| JERS | 25m | 37 to 43 degrees | 75 km | 44 days | In process |
Primary contact person:
Vancouver Office
Tel (604) 683-8521
Fax (604) 683-4350