Raster Analysis...

I have extensive experience working with raster datasets to support environmental analysis, water resource planning, and public safety mapping. My work often involves compiling and processing large collections of imagery and elevation data, georeferencing historic aerial photography, and performing spatial analysis to identify landscape change and infrastructure risk. These projects combine raster processing, spatial interpretation, and map production to support regulatory review, legal analysis, and emergency planning.

USGS 1938

NAIP 2014

I have supported multiple water rights litigation cases by building and maintaining georeferenced archive of historic aerial imagery from the 1950s through the 2000s. These raster databases were used to analyze historic irrigation patterns, river sediment, waterway changes, and land use changes related to water rights transfers and place-of-use determinations. Finding, georeferencing, and analyzing historic imagery can provide insight into our changing landscapes and how development can affect natural systems.

For dam safety projects across California, I developed dam failure inundation maps from model outputs that illustrated flood extent, water depth, arrival times, and economic impacts under potential failure scenarios. These raster-based analyses helped identify vulnerable areas and critical public infrastructure downstream and supported some of the first inundation maps submitted for state review, contributing to the development of public safety mapping policies.

https://www.irwd.com/construction/dam-emergency-action-plans-eap:

Santiago Creek Dam (inundation maps start on PDF page 84)
Rattlesnake Canyon Dam (inundation maps start on PDF page 71)
Sand Canyon Dam (inundation maps start on PDF page 70)

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