Aerial Photography

A time-series example:

High resolution Aerial Photography may be the most widely used data across the TRRP Partnership. Most site-level maps hung on walls or shown in presentations at meetings use the most recent available aerial photography. But aerial photography is not just for providing visual points of reference when discussing parts of the River. Aerial photography is integral to rehabilitation designs, regulatory follow-up, and a range of scientific analyses including fields of geomorphology, hydrology, and vegetation.
Examples of the use of Aerial Photography in TRRP
Use of aerial photography extends broadly and deeply into the work of TRRP offices. The list provided here is far from complete, but attempts to provide an overview of imagery uses.
• Reference for rehabilitation site design (features) and logistics (construction access)
• Quantification of revegetation at rehabilitation sites to meet regulatory requirements
• Validation of redd, habitat, and other mapping efforts
• Determining use of new side channels and other features on an annual basis for redds, habitat, and other biological factors.
• Visualization of as-built conditions at rehabilitation sites
• Tracking evolution of site conditions and rehabilitation features after construction
• Inventory and change-detection of channel morphology of mainstem, split flows, and side channels
• Inventory and change-detection of bar formation and migration
• Inventory and change-detection of vegetation burm changes
• Evaluating erosion and other issues of river dynamics
• Verifying land owner boundaries and juxtaposition with rehabilitation actions
• Identifying new construction and juxtaposition with rehabilitation actions
• Production of field maps to assist field surveys
• Public relations and explanation of projects

Trinity River reports on Remote Sensing (linked to ODP)

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