Coastal Orthorectified Mosaic Tiles for New Hampshire

Orthorectified mosaic tiles were created from the NOAA Integrated Ocean and Coastal Mapping initiative. The dataset includes RGB and infrared imagery collected at mean high and low water periods for the Frost Point and Isle of Shoals regions in New Hampshire. NOAA's National Centers for Environmental Information (NCEI) produced this data, with files last updated in 2011.

Use Cases

• Analyze shoreline changes by comparing RGB and infrared imagery from mean high and low water periods.
• Validate coastal elevation models using the orthorectified GeoTIFF tiles with ground sample distances of 0.50 m and 0.35 m.
• Assess coastal vegetation health by processing the included infrared imagery bands.
• Map intertidal zones by fusing data from the two distinct collection periods (mean high water and mean low water).

Strengths

• Imagery includes both RGB and infrared spectral bands for multi-modal analysis.
• Data provides two distinct ground sample distance (GSD) resolutions: 0.50 m for Frost Point and 0.35 m for Isle of Shoals.
• Products are orthorectified, reducing geometric distortion for accurate spatial analysis.
• Associated metadata includes FGDC-standard files and browse graphics for data discovery.

Limitations

• Data is from a single collection year (2011), limiting temporal analysis and current applicability.
• Spatial coverage is restricted to two specific regions in New Hampshire, not representative of broader coastlines.
• The raw description does not specify the total number of tiles or the exact file sizes, making download planning difficult.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI) via the Integrated Ocean and Coastal Mapping (IOCM) initiative.

Collection Method

Collected via aerial or satellite sensors as part of NOAA's Coastal Mapping Program, processed into orthorectified mosaic tiles.

Time Range

2011

Freshness

Data was last updated in 2011.

Geography

Coastal regions from Hampton Harbor to Frost Point and the Isle of Shoals, New Hampshire, USA.