Rakibul AhasanPhD·GISP

My work follows a single line of inquiry: how urban expansion and road networks reshape landscapes, and what that change means for the species and people who share them. Alongside the research I design and document the spatial analysis and raster analysis tooling that others use to ask questions of the same kind.

Methodologically my work sits at the convergence of land change modeling, machine learning, statistical modeling, and large-scale spatial analysis. The common thread is a preference for models that take spatial structure seriously, communicate uncertainty honestly, and stay interpretable enough that someone other than the modeler can use them.

Recent collaborators include Burak Güneralp, İnci Güneralp, and Lee A. Fitzgerald at Texas A&M, M Mahbub Hossain at the University of Houston, and the Oak Ridge National Laboratory Human Geography Group. I co-convene the AGU Urban Area and Global Change session in 2026.

Building the tools at Esri

Product Engineer II · Redlands, California · 2024 – present

I first heard the name Esri in 2011, as a freshman in Bangladesh, back when ArcGIS Pro did not exist and GIS was more or less synonymous with ArcMap. Eleven years later, driving to Houston with my wife, an email arrived asking about my availability to interview for a summer internship. I nearly took the next exit to answer it there and then. The offer came the following week, and a long-held ambition stopped being hypothetical.

What surprised me that summer was how much I enjoyed the other side of the glass. Having spent nearly my entire adult life inside academic institutions, I expected to miss the research. Instead I found the making of the thing absorbing in its own right — how a capability is conceived, how a parameter gets its name, how an idea becomes something documented, tested, and handed to a stranger.

I returned full time in January 2024 and now work in geospatial R&D, applying spatial analysis and raster analysis to questions about urban planning, service delivery, and beyond. It is a different kind of reach from publishing a paper: what I help design and document ends up with millions of users worldwide, across government, utilities, conservation, industry, and research, pointed at problems I will never hear about. That changes what a method has to withstand. Something that works in your own notebook, on your own data, has to survive a different dataset, a different question, and no patience for your assumptions.

The doctoral years at Texas A&M

PhD in Geography · Texas A&M University · 2019 – 2024

I completed my PhD at Texas A&M under Burak Güneralp. The dissertation produced one of the first global-scale road network growth models — calibrated against historical road expansion, projected forward under multiple development scenarios — and AGU's Eos magazine covered it on publication.

What I valued most was the range. Over five years the projects ran from the thermal environment of a single city to the entire terrestrial protected-area network, and the methods had to stretch to match: hazard models that carry their own uncertainty, machine learning for reading land cover from satellite imagery, spatial statistics for global pattern, and process models for how cities and their transport networks grow together. Few graduate students get to move across that many problems, and each one left a technique behind that the next could use.

Working at the grandest scale available — every protected area on Earth, the global road network, a thirty-year land-cover record — teaches you quickly which questions survive the jump from a case study and which quietly fall apart on the way up. It also came with the chance to teach GIS at undergraduate and graduate level and to mentor fourteen students through their own spatial analysis and habitat-change work, which remains among the more rewarding parts of the job.

But College Station gave me something a transcript does not record. The first sign was Howdy. Every class opened with it, and every function after that, formal or informal — and for a while I found it genuinely strange. It took a while to stop hearing it as a performance and start hearing it as what it is: a greeting an entire campus actually means. After that the rest followed. It made me an Aggie, and there that is not a figure of speech. I learned the traditions from the inside — the Ring you earn rather than simply buy, the 12th Man standing for the length of a game, Muster and the names read out at it, the Gig 'em thumb and the Whoop! that leaves your mouth before you have decided to say it. I did not expect, arriving from Bangladesh, to be claimed by a place quite so completely. Now I bleed maroon. The Howdy has gone involuntary — it comes out whenever I spot another Aggie anywhere in the world, whether that is on campus in College Station, somewhere out in the Rockies, or at the top of Independence Pass. I am an Aggie for the rest of my life.

Two degrees in Iowa

MCRP, MSc, Graduate Certificate in GIS · Iowa State University · 2017 – 2019

Before Texas came Ames: a master's in Community and Regional Planning, a second in Transportation, and a graduate certificate in GIS along the way. I taught GIS labs in Community and Regional Planning and, as a teaching assistant, supervised the changeover from ArcMap to ArcGIS Pro across the undergraduate and graduate sequences — which is a specific kind of education in how software actually gets adopted.

I also worked as a GIS technician at the Iowa State GIS Facility, building and validating spatial datasets for the Agricultural Conservation Planning Framework across Iowa, Indiana, and Ohio, and communicating what we found to USDA and Iowa DNR. That job taught me more about data preparation than any course did, and the habit of distrusting a dataset until I have checked it against another one dates from there.

Where it started: Khulna

BURP and MURP · Khulna University, Bangladesh

My undergraduate and master's degrees in Urban and Rural Planning are both from Khulna University. I was the first student in the discipline to earn a perfect 4.00 in a semester, and graduated top of my batch with a 3.89 CGPA.

Planning in Bangladesh is not an abstract exercise. You are working on cities growing faster than the infrastructure serving them, in a delta that floods. Questions about accessibility, transport equity, and hazard exposure were not research topics there; they were the conditions. That is where the thread running through everything since begins — my earliest papers were on public transport performance and metro rail accessibility in Dhaka, and on housing affordability measured against the planning theory meant to deliver it.

Staying was the comfortable option. But graduate study in the United States had been the plan for years, and I left for it — the American dream, named plainly. The planning identity came along and still runs underneath all of it: I remain more interested in what a model implies for a decision than in the model itself.

Away from the screen

Travel, photography, and football

I am Bangladeshi, married, and live in the United States. My wife and I travel whenever we can, mostly toward nature — Glacier, Yellowstone and Grand Teton, the Colorado Plateau, Big Bend and the parks of West Texas and New Mexico. Visiting all of the National Parks before I turn forty is a genuine item on the list, not a figure of speech. There are photographs from some of it.

Photography is the other half of that habit. Carrying a camera changes how you look at a landscape: you start noticing light, structure, and the edges of things, which is not so far from what I do with a land-cover raster, only slower and in better weather.

I follow sport closely and football above all — the watching kind, with the arguments that come with it. It is the one domain where I am content to hold strong opinions I cannot support with data.