One-meter panchromatic and four-meter multispectral IKONOS satellite imagery was purchased to support coral mapping activities for Guguan Island in the Northern Mariana Islands. The project was a cooperative effort involving the National Ocean Service, the University of Hawaii, and Analytical Laboratories of Hawaii. The imagery was processed between 2001 and 2003 to minimize atmospheric and water column effects.
Use Cases
- Delineating coral reef habitat boundaries using the one-meter panchromatic imagery for high spatial detail.
- Analyzing coral health and community structure over time using the four-meter multispectral bands for enhanced spectral resolution.
- Creating baseline maps for the Pacific Islands GIS project by interpreting feature boundaries from the processed imagery.
- Conducting time-series analysis of reef ecosystems by comparing the 2001-2003 imagery with later data collections.
Strengths
- Imagery includes both one-meter panchromatic and four-meter multispectral data, providing high spatial and spectral detail.
- Data was specifically processed to minimize atmospheric and water column effects, enhancing feature clarity for interpretation.
Limitations
- The dataset is temporally stale, with the last update in 2003, limiting analysis of recent changes.
- Spatial coverage is limited to Guguan Island and the Northern Mariana Islands, not representative of global reefs.
- Specific technical details like row counts, file formats, and exact processing algorithms are unknown.
Provenance
- Source
- National Oceanic and Atmospheric Administration (NOAA), National Centers for Environmental Information (NCEI).
- Collection Method
- Commercial IKONOS satellite imagery purchased and processed for specific project needs.
- Time Range
- 2001-2003
- Freshness
- null
- Geography
- Guguan Island, Northern Mariana Islands, Pacific Ocean.