Amirhossein Donyadidegan Geoinformatics · GIS · Data · Software ← Back to portfolio

Source ledger · Updated 26 July 2026

Image credits & licenses

Every external image is used as visual context, not as a representation of Amir's own project output. Source files were resized and converted to WebP; the site applies responsive crops and a shared CSS color treatment. No generative changes were made. NASA material is used factually with acknowledgement and without implying endorsement.

  1. Politecnico di Milano Bovisa campus

    Hero “Ground” image. “Politecnico di Milano Bovisa 3” by Ita140188. Source file · CC BY-SA 3.0. The responsive WebP derivatives are distributed under the same license.

    Local files: assets/editorial/hero-ground-720.webp, assets/editorial/hero-ground-1600.webp

  2. Snow, fog, and low clouds in Central Europe

    Hero “Orbit” image. Terra MODIS observation by Jeff Schmaltz, MODIS Rapid Response Team, NASA/GSFC. NASA Visible Earth source · NASA media usage guidelines.

    Local files: assets/editorial/hero-orbit-720.webp, assets/editorial/hero-orbit-1600.webp

  3. Pearl River Delta urban region

    NL2Map visual context. NASA Earth Observatory image by Adam Voiland, using Landsat data. Source file and public-domain notice · NASA media usage guidelines.

    Local files: assets/editorial/project-nl2map-800.webp, assets/editorial/project-nl2map-1600.webp

  4. Holuhraun lava field, Iceland

    LandsatToolkit primary visual context. False-color Landsat 8 OLI image from NASA Earth Observatory. Source file and public-domain notice · NASA media usage guidelines.

    Local files: assets/editorial/project-landsat-main-800.webp, assets/editorial/project-landsat-main-1600.webp

  5. Beaufort Sea shoreline

    LandsatToolkit supporting visual. False-color Landsat 9 scene by USGS Landsat Missions. USGS source and public-domain notice .

    Local files: assets/editorial/project-landsat-beaufort-480.webp, assets/editorial/project-landsat-beaufort-1000.webp

  6. Ten-millionth Landsat scene, Dead Sea

    LandsatToolkit supporting visual. False-color Landsat 7 scene by Michelle A. Bouchard, based on Landsat data from the USGS. USGS source and public-domain notice .

    Local files: assets/editorial/project-landsat-dead-sea-480.webp, assets/editorial/project-landsat-dead-sea-1000.webp

  7. Palos Verdes landslide movement map

    Landslide-susceptibility visual context. NASA Earth Observatory image by Lauren Dauphin, using ARIA/JPL, USGS 3DEP, and California Geological Survey data. Source file and public-domain notice · NASA media usage guidelines.

    Local files: assets/editorial/project-landslide-800.webp, assets/editorial/project-landslide-1440.webp

  8. QGIS layered-data workspace

    LayerAlterator visual context. QGIS interface screenshot with a Houston median-income map by the QGIS Development Team. Source file · CC0 1.0.

    Local files: assets/editorial/project-layeralterator-720.webp, assets/editorial/project-layeralterator-1400.webp

  9. Global temperature anomalies, 2024

    SE4G visual context. Scientific visualization by NASA's Scientific Visualization Studio and the GSFC GISS team. Source file and public-domain notice · NASA media usage guidelines.

    Local files: assets/editorial/project-se4g-720.webp, assets/editorial/project-se4g-1600.webp

  10. Yoga practice beside a lake

    PoliYoga domain context. Photograph by Salambayoga, originally published on Pixabay. Source file · CC0 1.0. The site uses responsive WebP derivatives and a shared CSS color treatment.

    Local files: assets/editorial/project-poliyoga-720.webp, assets/editorial/project-poliyoga-1400.webp

  11. Politecnico di Milano Leonardo campus

    Education panorama. “Technical University Milan” by Gerda Arendt. Source file · CC0 1.0.

    Local files: assets/editorial/education-polimi-960.webp, assets/editorial/education-polimi-1920.webp

  12. Earth at Night: Black Marble 2016

    Contact-section background. NASA Earth Observatory image by Joshua Stevens, using Suomi NPP VIIRS data from Miguel Román, NASA GSFC. NASA Visible Earth source · NASA media usage guidelines.

    Local files: assets/editorial/contact-black-marble-960.webp, assets/editorial/contact-black-marble-1920.webp