NOAA NCEI provides IKONOS satellite imagery for Agrihan Island in the Northern Mariana Islands. The collection includes one-meter panchromatic and four-meter multispectral data purchased to support coral reef mapping and GIS projects. This imagery was processed by a cooperative effort involving NOAA, the University of Hawaii, and Analytical Laboratories of Hawaii between 2001 and 2003.
Use Cases
- Analyzing coral reef community structure over time using the time series of multispectral imagery.
- Delineating habitat boundaries for GIS projects by photointerpreting features in the one-meter panchromatic data.
- Assessing coral health by leveraging the enhanced spectral resolution and controlled bandwidths of the four-meter multispectral data.
- Minimizing atmospheric and water column effects in imagery analysis using the pre-processed IKONOS data.
Strengths
- Includes both high-resolution one-meter panchromatic and four-meter multispectral imagery.
- Imagery was specifically processed to minimize atmospheric and water column effects for marine studies.
- Data supports time series analysis for coral reef monitoring across a multi-year period (2001-2003).
Limitations
- The dataset is temporally stale, with the last update recorded in 2003.
- Specific technical details like row count, file size, and column/feature lists are unavailable.
Provenance
- Source
- NOAA National Centers for Environmental Information (NCEI), via NASA Earthdata.
- Collection Method
- IKONOS satellite imagery was purchased and processed through a cooperative project involving NOAA NOS, the University of Hawaii, and Analytical Laboratories of Hawaii.
- Time Range
- 2001-2003
- Freshness
- null
- Geography
- Agrihan Island, Northern Mariana Islands.