Orthorectified Coastal Imagery of New Hampshire

0.5-meter ground sample distance pixels provide high-resolution true color and infrared imagery of coastal New Hampshire. The NOAA Remote Sensing Division acquired the data from an Applanix Digital Sensor System flown at 5,000 feet AGL in 2008. Images have been orthorectified and mosaiced to create a seamless product.

Use Cases

• Analyze coastal vegetation health using the infrared (IR) band acquired with an 850 nm cut-on filter.
• Monitor shoreline erosion or accretion by comparing the orthorectified true color (RGB) mosaic tiles with contemporary data.
• Assess land cover classification accuracy by utilizing the 0.5 m ground sample distance (GSD) for detailed pixel-level analysis.
• Study the presence and impact of cloud cover as noted in the imagery for atmospheric condition research.

Strengths

• High spatial resolution with a ground sample distance of 0.5 meters per pixel.
• Contains both true color (RGB) and infrared (IR) spectral bands for multi-spectral analysis.
• Data is orthorectified and mosaiced, providing a geometrically corrected and seamless image product.

Limitations

• Data is temporally stale, collected in 2008, limiting analysis of recent coastal changes.
• Clouds may be present in the imagery, obstructing ground feature observation.
• Only minimal color balancing was performed; mosaic data have not been histogram stretched, affecting visual consistency.

Provenance

Source

NOAA Remote Sensing Division.

Collection Method

Acquired from a nominal altitude of 5,000 feet AGL using an Applanix Digital Sensor System (DSS).

Time Range

2008.

Freshness

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Geography

Coastal New Hampshire.