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jollygoodjacob/README.md
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Jacob Nesslage

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About Me

I’m a Ph.D. Candidate in the Environmental Systems Graduate Group at the University of California, Merced. I conduct research in the Earth Observation and Remote Sensing (EORS) Lab (PI: Dr. Erin Hestir). When I'm not coding or field sampling, you can find me hiking, catching waves, or playing the guitar.

Research Focus

My dissertation research leverages multi-scale remote sensing — from satellites, drones, and aircraft — combined with in-situ biodiversity surveys and environmental DNA (eDNA) from soils, sediments, and water. Together, these datasets help me assess, monitor, and model biodiversity across dynamic terrestrial–aquatic interfaces.

Biodiversity at the Terrestrial-Aquatic Interface

I am especially interested in how hydrology and geomorphology shape biodiversity and ecosystem services, focusing on floodplains, river corridors, and ephemeral wetlands — the transitional zones where life and water converge.

Spatiotemporal Data Fusion

A growing area of my research involves spatiotemporal data fusion, particularly for combining satellite and UAV imagery to generate synthetic fine-resolution time series. These approaches have applications in precision agriculture, environmental monitoring, and other domains where high spatial and temporal resolution are essential.

Open Science and Tools

I’m a strong advocate for open-source geospatial science and reproducible research. I primarily code in R and Python, and frequently use QGIS, Google Earth Engine, and GDAL within my workflows. I also use JavaScript and Bash for specialized geospatial automation tasks.


My GitHub Stats

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  1. OpenRES OpenRES Public

    OpenRES: A QGIS plugin for automated extraction of hydrogeomorphic features to support functional process zone classification of river networks

    HTML 1

  2. NASA-Space-Apps-Workshop-2024 NASA-Space-Apps-Workshop-2024 Public

    Scripts and tutorials for NASA SpaceApps Challenge 2024 workshops at UC Merced

    Jupyter Notebook 1 2

  3. GDM_workshop GDM_workshop Public

    Generalized Dissimilarity Modeling workshop slides, scripts, and readings from a workshop I led in Summer 2023 at UC Merced

    R

  4. GEE-GOES-cloud-cover GEE-GOES-cloud-cover Public

    Small project on deriving fog percentages by month from GOES-16 satellite data in Google Earth Engine using JavaScript

    JavaScript 1