A significant portion of my Ph.D. research focused on using Geographic Information Systems (GIS) and remote sensing to monitor river environments. My interests in the biogeomorphology of river migrations encompass geomorphology, riparian vegetation, and restoration. Recently, my research has expanded to include river ice and land-use impacts.

  • Riparian Vegetation & Geomorphology: I utilized tools like Google Earth Engine and high-resolution (1-meter) imagery to assess changes in river channels and riparian vegetation. This includes mapping how rivers change shape over time and classifying different types of vegetation along riverbanks.

  • Accuracy & Methodology: Several of my papers focus on the technical accuracy of these mapping efforts. For example, identifying factors that influence how well vegetation can be classified and quantifying how accurately restored riparian buffers can be delineated in satellite imagery.



Relevant Publications So Far:

G. Pu, L. Quackenbush, J. Stella. 2024. Quantifying restored riparian buffer delineation accuracy and detectability in multitemporal imagery. Ecological Engineering. Link

G. Pu, L. Quackenbush, S. Stehman. 2021. Using Google Earth Engine to Assess Temporal and Spatial Changes in River Geomorphology and Riparian Vegetation. American Water Resource Association. Link

G. Pu, L. Quackenbush, S. Stehman. 2021. Identifying Factors That Influence Accuracy of Riparian Vegetation Classification and River Channel Delineation Mapped Using 1 m Data. Remote Sensing. Link


More project materials can be found here:

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