San Francisco Bay Area

Edward Turk

Data analyst and environmental scientist. I work in GIS, remote sensing, and statistical analysis.

I have never felt so able to solve hard problems and build the ideas I have as I do now. My background is in the natural sciences, and I love physics and AI. What I enjoy most is thinking through a problem and doing the analysis that brings clarity and insight. I use AI tools throughout my work, and I believe they expand both the type and the scope of what we can accomplish. I still see them as tools. There is no replacement for human vision, intuition, and drive.

Edward Turk standing in a field of tall golden grass under a clear blue sky, wearing a cap and sunglasses and resting one hand on the grass.

How I work

New skills for the new economy

AI can let you move too fast, and too confidently, into territory you do not know well. That is a real risk, and it deserves to be faced directly rather than avoided out of fear. As people start to work alongside AI agents, I think the skills that matter most are the hardest ones to teach. They are also the most human. They are softer and more conceptual. They are not the old kind of skill that says I can do task X to get result Y, because that kind of work is being automated fast. What matters now is how clearly you think, and how well you can put that thinking into words.

  • Posing the right questions Finding and asking the questions that let you learn fast and catch problems early.
  • First-principles thinking Bringing the shape of a problem, and its solution, into focus. This keeps you on track and saves you from spending time and energy on the wrong things.
  • Validating outputs Validating your own work so it carries accountability and confidence.

An employee is no longer just one person in a role. Inside that person's computer is a small army of intelligence. So anyone, whatever their position, can act as the CEO of their own small company of agents, building the tools they need to do good work day to day. That, I think, is the real economics of agents. It is not that you rely on them to do everything for you. It is that you ask them to build the unique and reusable software that improves how you work.

Selected work

Master's research · Remote sensing · Water resources

Mapping soil moisture from vegetation phenology

Testing whether Sentinel-2 vegetation time series can predict watershed-scale soil moisture in the Upper Gunnison / East River watershed near Crested Butte, Colorado.

10 m maps · 437 ground measurements, 17 sites · leave-one-site-out validation

AGU 2025 · manuscript in preparation

Collaborative work · Lab method · Trace-gas flux

Collaborative work at Stanford

Turning a stock LI-COR LI-8250 flask multiplexer into a continuous-flow anoxic incubator for intact soil cores, and measuring methane and carbon dioxide flux under imposed anoxia.

4 intact cores · 8-port multiplexer · 92 h run · SLAC

Lab for Oxidation–Reduction Chemistry of Anoxic Microsites

Cartography · Interactive map · Community data

BayGeo Membership, 2017–2026

Where the Bay Area’s GIS community lives. A 24 by 36 inch poster and an interactive map built from 615 anonymized BayGeo membership records, by county, by ZIP code and year by year, for the BayGeo Open Map Challenge.

615 records · 25 California counties · 10 years · QGIS + deck.gl

BayGeo Open Map Challenge 2026

Experiment · Work in progress · Agriculture

Cover Crop Explorer

An interactive, serverless map that estimates winter cover-crop signals across California almond orchards using free satellite imagery. Counting that on the ground means a census, so this asks how much you can infer from space instead.

16,365 orchards · 9 counties · 6 winters (2018–19 … 2023–24)

Experiment · Work in progress

Software project · Electron · React · TypeScript

Lares Agent IDE

A visibility-first desktop workspace for watching, directing, and collaborating with teams of AI agents across terminals, files, browsers, documents, and notebooks.

Harness-based, not SDK-based · cross-provider GroupThink · governed browser

Short demo forthcoming

Coursework

Class exercises

A few pieces from GIS coursework at the University of San Francisco. Graded class exercises, not research. Here are three that cover ground the projects above don't: routing a power line across a cost surface, building a bare-earth terrain model from airborne LiDAR, and scoring a floodplain against five environmental drivers at once.

Topographic map of hilly terrain shaded in greens, tans and olive. A magenta line runs from a small yellow square marker at the bottom left, north along the western side of the frame past a blue reservoir, then bends east across the top to an orange circular marker. A heavy black line continues southeast from that orange marker toward the lower right. A dashed black line runs close to the magenta line near the bottom left. Thin grey roads and pale rectangular patches are scattered across the frame. No legend or scale bar is in view.
Routing a transmission line by least cost Class assignment · ArcGIS Online Map Viewer · Published November 2025 Two fixed points, a valley between them, and terrain left to argue for the route. I turned slope into a cost surface, binning 0 to about 30 degrees into ten steps, and let the least-cost path fall out. The route came to just under 19 km. The reclass table is published with the map, so anyone can check the bin edges. The data is instructional, so this is a class exercise, not a real siting study.
Satellite image of a creek winding through open grassland and scattered trees, with a road crossing the channel at the top left. Coloured bands are drawn over the valley floor: a dark navy core along the channel, then medium blue and pale blue spreading outward, with a thin orange fringe between them. Three short dark brown bars sit across the channel and are picked out by white arrows leading to the bold white label “channel-spanning engineered log jams”. A red arrow labelled “River Flow Direction” points up-valley, a north arrow sits at the top right, and a scale bar reading 0 to 0.2 miles runs along the bottom.
Mapping re-connectable floodplain habitat in Walker Creek Class assignment · Introduction to LiDAR · FUSION, LAStools and ArcGIS Pro Lower Walker Creek runs into Tomales Bay and carries coho salmon, and restoration means giving the creek its floodplain back. I built a 1 m bare-earth DEM from 2018 USGS 3DEP LiDAR and measured how much ground reconnects at each meter the water rises. Anything meaningful for salmon takes at least two meters. The risk is that a two-meter design head can become a four-meter rise in a storm and put the nearby road under water.
A continuous raster surface draped over a river valley, coloured on a ramp from red through orange and yellow to green. Green and yellow concentrate on the valley floor on both sides of a blue river line that meanders across the frame, while solid red covers the higher ground around it. Nicholson Lake is labelled in pale blue at the top, with Nicholson Lake Ridge Rd and County Road 734 running past it and a spot elevation reading 8979 ft beside it. Pale grey patches carry no raster values. No legend, scale bar or north arrow is in view.
Modeling methane potential in an alpine floodplain Class assignment · Fuzzy overlay in ArcGIS · Published December 2025 Methane leaves wetland soils unevenly, and much of what drives that is too small for a satellite to see. For a floodplain in the Slate River watershed I scored five environmental drivers as fuzzy surfaces and multiplied them together, so any single missing requirement takes a pixel to zero instead of getting averaged away. It maps where the conditions line up. Nothing in it has been checked against measured flux.

View all coursework (seven pieces)

These are coursework, so the questions were mostly set by the assignment rather than by me.

About

Field and lab science, then remote sensing

I spent roughly five years in laboratory and field science before remote sensing became most of my work. That background means I've collected the field and lab data that GIS layers are made of, not only downloaded it: methane flux chambers, groundwater wells, porewater chemistry, soil cores. Soil health and regenerative agriculture remain interests of mine.

I'm now a graduate research assistant at the University of San Francisco, working on floodplain hydrology. I use Sentinel-2 imagery, harmonic regression, and interactive tools to map environmental conditions that are hard to measure on the ground.

Earlier, I was a Research Associate II at Pivot Bio (2020–2023), on the team whose product was named to TIME's Best Inventions of 2023.

M.S. candidate, Environmental Management, University of San Francisco (2024–2026; degree confers on thesis completion) · Advanced Certificate in Geospatial Information Science · Joseph Petulla Award, Outstanding MSEM Graduate Student (2026) · B.S. Ecology & Evolution, UC Santa Cruz.

  • Spatial & remote sensing ArcGIS Pro, QGIS, Earth Engine, Sentinel-2, LiDAR
  • Analysis Python, R, SQL, mixed-effects models, harmonic regression, LOSO/LOVO validation, kriging
  • Environmental measurement soil sampling, groundwater, LI-COR trace-gas
  • Software & communication JavaScript, interactive mapping, technical figures, explainers
Edward Turk presenting his master's thesis. Thesis presentation (PDF)
Credential scans
Edward Turk stands smiling behind a table, holding a framed certificate that reads The Joseph Petulla Award, Edward Turk. Large gold letter balloons and clusters of green and yellow balloons fill the background, with flags to one side and stacks of folded green graduation stoles on the table beside him.
Certificate in blackletter type headed University of San Francisco, Society of Jesus, with the university seal. It certifies that Edward Turk has completed the requirements for the advanced certificate Geospatial Information Science in the College of Arts and Sciences, given at San Francisco on the twenty-first day of May, Two Thousand and Twenty-Six, and carries signatures from the Provost and Academic Vice President and the Dean of the College.
Advanced Certificate in Geospatial Information Science
Certificate headed University of San Francisco, Master's of Science in Environmental Management, titled The Joseph Petulla Award in blackletter type over a faint laurel watermark. The text reads that the award is presented to one graduating MSEM student with outstanding academic achievement and a Master's Project that demonstrates a significant contribution to the environmental field. Presented to Edward Turk, May 14th, 2026, signed by Amalia Kokkinaki, Ph.D., Program Director, MSEM Program.
The Joseph Petulla Award
University of San Francisco