Climate change & Earth system dynamics

Research & technical projects

Engineering cloud-native pipelines that move climate science from retrospective observation to actionable forecasting.

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Research focus & field

Climate change &
Earth system dynamics

My research is driven by the urgent need to understand, quantify, and adapt to the escalating impacts of global climate change. I operate at the intersection of computational data science, Earth system dynamics, and climate policy, focusing on how shifting atmospheric thermodynamics disrupt physical environments and the societies that depend on them.

Computer science is a methodology,
not an endpoint.

While my recent specialized work has centered on terrestrial macroecology and forest resilience, my broader scientific interest lies in untangling complex climate data to answer critical questions about environmental risk, tipping points, and planetary boundaries. By engineering cloud-native, high-throughput pipelines to process global-scale data (CMIP6, NetCDF), I build predictive systems that move climate science from retrospective observation to actionable forecasting.

Ultimately, my focus is on translating massive computational climate datasets into clear, evidence-based insights that drive climate-smart conservation, governance, and adaptation strategies.

Research experience

Where the work is done

  1. Swiss Federal Institute for Forest, Snow and Landscape Research (WSL)

    Guest Scientist Birmensdorf, Switzerland

    Collaborating with domain experts to scale and refine predictive models of forest structural vulnerability. This work integrates CHELSA bioclimatic datasets and bias-corrected environmental data to validate macroecological assumptions regarding spatial carrying capacity and atmospheric stress.

    • CHELSA
    • Bias correction
    • Carrying capacity
    Aerial view of the WSL research campus at Birmensdorf, showing laboratory buildings alongside experimental planting plots
  2. AUA Acopian Center for the Environment FORACCA Initiative

    Researcher Yerevan, Armenia

    Developed a computational framework targeting Output 1.2 of the Forest Restoration and Climate Change in Armenia (FORACCA) initiative. Engineered a full-stack, automated pipeline to map long-term atmospheric stressors to static 3D forest structural outcomes.

    • Automated pipeline
    • 3D forest structure
    • Atmospheric stressors
    Narek Ohanyan working at a microscope in the AUA Acopian Center for the Environment laboratory
  3. Independent Earth Observation Research

    Dilijan & Syunik regional forests, Armenia

    Designed and executed an automated image processing pipeline to quantify carbon sequestration potentials via Leaf Area Index (LAI). Developed macro-driven binarization and structural analysis protocols on multi-temporal canopy datasets.

    • Leaf Area Index
    • Binarization
    • Multi-temporal canopy
    Leaf Area Index raster over Armenian terrain, rendered on a 0–255 colour ramp where deeper reds mark valley floors and roads and lighter tones mark denser canopy
  4. Independent Authorship

    Author, The Overshoot: Life After the 1.5°C Limit

    Published an independent monograph analyzing the systemic cascading effects of breaching key planetary boundaries, bridging physical climate realities with socio-environmental adaptation strategies.

    Read about the book

    Cover of The Overshoot: Life After the 1.5°C Limit by Narek Ohanyan
  5. Climate Researcher & Curriculum Developer AUA Acopian Center for the Environment

    January – June 2026 Yerevan, Armenia

    • Co-architected a bilingual pedagogical framework addressing the Climate Crisis by translating complex mitigation data into youth leadership modules.
    • Developed a comprehensive, bilingual (Armenian–English) pedagogical framework addressing the Triple Planetary Crisis.
    • Structured interactive training modules for educators and students, translating complex data into accessible youth curricula.
    • Co-architected a train-the-trainer methodology, producing detailed lecture presentations and activity guidelines to equip youth leaders to advocate for evidence-based climate policies in Armenia and on the international stage.
    • Bilingual framework
    • Train-the-trainer
    • Triple Planetary Crisis
    Narek Ohanyan in discussion around a table with other participants during a curriculum development workshop
  6. Water & Citizen Science Toolkit Developer AUA Acopian Center · OTTERS Project

    March – June 2025 Yerevan, Armenia

    • Operationalized citizen science by developing water quality monitoring toolkits under the EU-funded OTTERS Project, ensuring alignment with scientific data standards.
    • Authored field protocols that let schools and community groups take defensible physical and chemical measurements without access to laboratory equipment.
    • Structured the sampling design so records gathered by non-specialists stay comparable across sites and seasons — the condition under which citizen-collected data becomes usable evidence rather than anecdote.
    • Published the result as an open educational resource for educators across the project partnership.
    • Citizen science
    • Water quality
    • EU-funded

    Read the toolkit (PDF, opens in a new tab)

    Cover of the OTTERS water quality monitoring toolkit for educators

Featured tool

ANTAR

Assessment of Niche, Treeline & Analogue Refugia v2.0.0

A web interface and modelling chain for climate-resilient reforestation in Armenia. ANTAR links daily water stress, hydraulic-failure hazard, species niche and treeline change into multi-scenario refugium scores, then turns them into robust planting decisions under a budget.

ANTAR — Assessment of Niche, Treeline & Analogue Refugia. Explore the map, place explorer, treeline and decision views at antar.narekohanyan.com.
  • TOPOHYDRO

    Climate and water balance. Coarse climate is lapse-corrected to each node’s elevation, then run through a species-rooting-depth soil bucket to give a daily water-stress signal.

  • XYLEM

    Mechanistic hydraulic-failure hazard. A two-phase time-to-failure model converts water stress into the probability that trees suffer hydraulic failure.

  • MNEME

    The statistical counterpart to XYLEM, fitted to satellite-observed dieback so the mechanistic hazard can be checked against what trees actually did.

  • MERISTEM

    Niche and treeline. Asks where each species’ climate niche and thermal treeline lie, now and under future scenarios.

  • REFUGIUM

    Combines hazard and niche into multi-scenario viability and robust-refugium scores for every place.

  • AEGIS

    Decision support. Chooses what to plant where under a budget, hedging against the worst plausible futures.

How to cite

Ohanyan, N. (2026). ANTAR — Assessment of Niche, Treeline & Analogue Refugia (Version 2.0.0) [Computer software and web interface]. https://antar.narekohanyan.com (source code: https://github.com/Narek-Ohanyan/antar). https://doi.org/10.5281/zenodo.23236944

ANTAR’s Status & limits page documents what is implemented and which inputs are still placeholders.

Research skills & technical stack

The toolkit

Computational infrastructure

  • Python
  • R
  • Pangeo catalog
  • Cloud-native computing
  • Google Cloud Storage

Geospatial & climate data

  • NetCDF climate arrays
  • xarray
  • rioxarray
  • rasterio
  • GIS & spatial regression
  • GEDI structural metrics
  • Sentinel-2 vegetation height models

Machine learning & statistics

  • Random Forest Regressors
  • SHAP interpretability
  • Multi-temporal supervised learning

Domain expertise

  • Forest structural climax modeling
  • Land–atmosphere interactions
  • Thermodynamic stress derivation
  • Climate risk mapping

Academic goals

What comes next

Having established a robust foundation in spatial analytics, algorithmic design, and climate informatics, my primary objective is to pursue a Ph.D. in Earth System Science, Climate Dynamics, or a closely related discipline at a leading research institution.

Because I treat computer science as an adaptable toolkit rather than a restrictive discipline, I am eager to apply my computational background to a broad range of systemic climate questions — terrestrial ecohydrology, land–atmosphere interactions, atmospheric risk assessment, global tipping points. My goal is to fuse high-performance computing with foundational Earth science to develop next-generation predictive models that untangle complex Earth system dynamics and help humanity navigate the defining crisis of our time.