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Portfolio

PUBLICATIONS

 Georectified polygon database of ground-mounted large-scale solar photovoltaic sites in the United States 
Fujita, K.S., Ancona, Z.H., Kramer, L.A., Straka, M., Gautreau, T.E., Garrity, C.P., Robson, D., Diffendorfer, J.E., and Hoen, B. Georectified polygon database of ground-mounted large-scale solar photovoltaic sites in the United States. Sci Data 10, 760 (2023). https://doi.org/10.1038/s41597-023-02644-8
             
 United States Large-Scale Solar Photovoltaic Database (ver. 1.0, November 2023)  
Fujita, K.S., Ancona, Z.H., Kramer, L.A., Straka, M., Gautreau, T.E., Garrity, C.P., Robson, D., Diffendorfer, J.E., and Hoen, B., 2023, United States Large-Scale Solar Photovoltaic Database v1.0 (November, 2023): U.S. Geological Survey and Lawrence Berkeley National Laboratory data release,
https://doi.org/10.5066/P9IA3TUS.
U.S. Photovoltaic Database (usgs.gov)
            

U. S. GEOLOGICAL SURVEY

 Illuminating Trends in Solar Photovoltaics  2023 AAG Annual Meeting 
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  • Data were provided by the United States Geological Survey (USGS) and Lawrence Berkeley National Laboratory (LBNL) to generate density maps and demonstrate the increased development of solar facilities over time across the United States. 

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  • Uses the US large-scale solar Photovoltaic Database (USPVDB), a first-of-its-kind polygon-based dataset with location points and polygons quantifying land area associated with LSPVs (≥1 MW) in the US.

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  • The USPVDB is a collaboration between USGS Geosciences and Environmental Change Science Center and Lawrence Berkely National Laboratory Energy Technology Area and is pending publication for 2023.​

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  • Maps are separated by USGS National Land Cover Database (NLCD) release dates beginning in 2011.​ ​

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UNIVERSITY OF COLORADO DENVER

 Mapping the Native Bumble Bees (Bombus) of Colorado 
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  • Provides insight into the geographic distribution of all 24 Bombus species native to Colorado.​

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  • Data from the Global Biodiversity Information Facility (GBIF) website and additional non-published data were used to create 24 individual heat maps showing the distribution of each species.

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  • The answer to whether all 24 native species exist in Colorado is inconclusive due to a lack of data and limited collection ranges.

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  • Biases in data collection require wider collection efforts to generate new data from all regions of the state, giving a better representation of actual population densities.

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  • Details regarding this research, including a public geodatabase, can be found by clicking here.

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 Western bumble bee (Bombus occidentalis) distribution in Colorado, USA 
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  • Assessed the historical distribution of one of Colorado’s native species, Bombus occidentalis, or the western bumble bee.​

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  • Data from the Global Biodiversity Information Facility (GBIF) website were used to create five historical distribution maps and a predictive model of western bumble bees in Colorado.

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  • Results support the hypothesis: the range of western bumble bees in Colorado and the Rocky Mountains has declined over time.

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  • Biases in data collection require wider collection efforts to generate new data from all regions of the state, giving a better representation of actual population densities.

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  • Additional details regarding this research can be found by clicking here.

 Vegetation and Channel Recovery Nine Years Following the Waldo Canyon Fire of Colorado                    
GSA Connects 2021 
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  • ​Field-based Graduate Research, CU Denver

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  • Surveyed channel recovery of burned tributaries in Waldo Canyon, Colorado nine years after the 2012 wildfire.

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  • Results determined morphologic recovery of the channels had not yet occurred and may take decades or longer to restore their pre-fire conditions.

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  • Details regarding this research and my fieldwork can be found by clicking here.

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ENVIRONMENTAL MODELING

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