Humboldt Bay Orthoimagery at 0.5-Meter Resolution

0.5-meter pixel resolution orthoimages cover the Humboldt Bay area, combining photographic detail with map-like geometric accuracy. NOAA Coastal Services Center created this data to support emergency response and homeland security planning. The imagery was collected and published in 2009.

Use Cases

• Analyze coastal erosion or land cover change using the four-band orthoimagery from 2009 as a baseline.
• Create high-resolution base maps for GIS projects by leveraging the 100-meter image overlap between adjacent DOQQQ files.
• Perform feature extraction for infrastructure planning, utilizing the UTM Zone 10 North (NAD83) projected coordinate system for spatial accuracy.

Strengths

• 0.5-meter pixel resolution provides high spatial detail for feature identification.
• Four-band imagery likely supports analysis beyond standard RGB, potentially including near-infrared.

Limitations

• Data is from 2009, making it temporally stale for analyzing recent changes.
• Spatial coverage is limited to the Humboldt Bay area, not a broader region.

Provenance

Source

NOAA Coastal Services Center, accessed via NASA Earthdata (NCEI Accession 0089055).

Collection Method

Remotely sensed image data processed to remove terrain relief and sensor orientation displacement.

Time Range

2009

Freshness

2009-06-27

Geography

Humboldt Bay area, California, USA.