2001 to 2003 IKONOS satellite imagery was purchased to support coral reef mapping and GIS activities in the Pacific Islands. The collection includes one-meter panchromatic and four-meter multispectral data processed to minimize atmospheric and water column effects. It is a cooperative project involving the National Ocean Service, the University of Hawaii, and Analytical Laboratories of Hawaii.
Use Cases
- Delineating coral reef habitat boundaries using the high-resolution panchromatic and multispectral bands.
- Conducting time series analysis of coral reef community structure with the multi-year, processed imagery.
- Assessing coral health by leveraging the enhanced spectral resolution of the multispectral data.
- Supporting GIS projects for Pacific Islands with georeferenced one-meter and four-meter imagery.
Strengths
- Imagery spans a 3-year period from 2001 to 2003.
- Includes both one-meter panchromatic and four-meter multispectral data for each study area.
- Data was processed to minimize atmospheric and water column effects for improved analysis.
Limitations
- Data is from 2001-2003 and may not reflect current coral reef conditions.
- Specific spatial coverage details and total file size are unknown.
- The exact number of image scenes or rows of data is not provided.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI), sourced from NASA Earthdata.
- Collection Method
- Commercial IKONOS satellite imagery purchased and processed for specific project needs.
- Time Range
- 2001 to 2003
- Freshness
- Last updated in 2003; static historical dataset.
- Geography
- Guam and surrounding Pacific Islands study areas.