Columbia Glacier Orthorectified Aerial Mosaics 2002-2009

Orthorectified mosaics from annual aerial stereographic flights over the Columbia Glacier from 2002 to 2009. Data includes a full-resolution 0.25m mosaic from the 27 August 2009 flight and a spatial index polygon shapefile. The dataset was provided by the organization SCIOPS and last updated in June 2010.

Use Cases

• Analyze glacier surface elevation changes by comparing orthorectified mosaics from different years.
• Map glacier terminus position and calving front retreat using the high-resolution 0.25m mosaic from 2009.
• Use the included spatial index shapefile to efficiently query and manage specific tiles within the mosaic dataset.
• Study seasonal and interannual ice flow patterns by correlating imagery with other temporal datasets from the 1976-2010 inventory.

Strengths

• Includes a full-resolution orthorectified mosaic at 0.25m ground sampling distance from 2009.
• Covers a multi-year temporal series from 2002 to 2009 for change detection analysis.
• Provides a spatial index shapefile for organized data access and tile management.

Limitations

• Data is temporally stale, with the last update in 2010 and no recent observations.
• The specific number of flight missions, individual images, and total data size are unknown.
• Limited to the Columbia Glacier region, which may not be representative of other glacial systems.

Provenance

Source

nasa_earthdata platform, provided by organization SCIOPS.

Collection Method

Derived from aerial stereophotography missions flown annually over the Columbia Glacier.

Time Range

2002 to 2009, with a specific high-resolution product from 27 August 2009.

Freshness

Last updated 2010-06-03; update frequency is unknown.

Geography

Columbia Glacier.