Long Island Coastal Orthophoto Mosaic Tiles from 2002

NOAA National Ocean Service provides 1,541 true color orthorectified image tiles covering Long Island, New York. The dataset contains 100 source images mosaicked into 1000m by 1000m GeoTIFF tiles with a 0.5-meter pixel resolution. Data was produced in June 2002 for a USGS benthic mapping contract.

Use Cases

• Analyze coastal land cover change by comparing 0.5-meter resolution RGB tiles from 2002 with recent imagery.
• Train computer vision models for shoreline feature detection using the orthorectified true color mosaic.
• Conduct benthic habitat mapping by correlating the georeferenced orthophotos with other survey data.
• Validate or update historical GIS layers using the precise geospatial positioning of the image tiles.

Strengths

• High spatial resolution of 0.5 meters per pixel.
• Large spatial coverage represented by 1,541 individual image tiles.
• Orthorectified using USGS 10m Digital Elevation Models for geometric accuracy.

Limitations

• Temporal coverage is limited to a single snapshot from June 2002.
• Dataset size and specific file sizes are not provided.
• Limited spectral information as data consists of true color (RGB) bands only.

Provenance

Source

NOAA National Centers for Environmental Information (NCEI), originally from the NOAA Coastal Services Center.

Collection Method

100 source images were orthorectified with USGS DEMs, mosaicked, and tiled into GeoTIFF format for USGS contract 01CRCN0012.

Time Range

June 2002

Freshness

null

Geography

Long Island, New York, USA.