Olivier Hagolle

@OHagolle

Researcher , engineer. I tweet about optical time series, , atmospheric correction and cloud masking. Views are my own

Vrijeme pridruživanja: svibanj 2016.

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  1. Prikvačeni tweet
    28. lis 2019.

    It has never been so easy to obtain L2A data from : 1. Get an account on PEPS 2. Get FULL_MAJA on github 3. python full_maja_process.py -a peps.txt -t 36TWQ -d 2019-03-01 -f 2019-09-01 -g out.log 4. Wait 5. Download results Details:

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  2. 2. velj

    02/02/2020 20°C in Toulouse.🤒

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  3. proslijedio/la je Tweet
    30. sij

    Le CES Température de surface et émissivité de animé par deux chercheuses de se propose de recenser vos besoins. Participez avant le 31 mars. ▶ en savoir plus ▶ l'enquête

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  4. proslijedio/la je Tweet
    30. sij

    [THREAD] Je vous ai déjà parlé de la Cité Emmurée de Kowloon, le ghetto dystopique cyberpunk Hong-Kongais impénétrable des années 80 ?

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  5. proslijedio/la je Tweet
    28. lis 2019.

    It has never been so easy to obtain L2A data from : 1. Get an account on PEPS 2. Get FULL_MAJA on github 3. python full_maja_process.py -a peps.txt -t 36TWQ -d 2019-03-01 -f 2019-09-01 -g out.log 4. Wait 5. Download results Details:

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  6. 28. sij

    has now been acquiring data for more than 4 years, long term studies may almost start ! Here is how the sand banks near Saint Louis, Senegal changed with time.

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  7. proslijedio/la je Tweet
    17. sij
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  8. proslijedio/la je Tweet
    27. sij

    Data science 4 geosciences course starts today !

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  9. proslijedio/la je Tweet
    28. sij

    Utilisation des incroyables images 🛰 du par les étudiant·es AGREST de l'. Ici le DHI, Dynamic Habitat Index calculé à partir d'une année entière d'images 🍃 🏞

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  10. proslijedio/la je Tweet
    25. sij

    Fluvial processes in action! Estuaire de la Sée et de la Sélune, Baie du Mont-Saint-Michel

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  11. proslijedio/la je Tweet
    22. sij

    7/ The Sentinel-1 radar by (no visible imaging available since it is still cloudy here in the region) shows this before and after. The emerged area left in the center is were the lucky Deltebre town lays.

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  12. proslijedio/la je Tweet
    21. sij

    Ne ratez pas la prochaine soutenance de thèse au !

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  13. proslijedio/la je Tweet
    21. sij

    Prolongation de mission pour le satellite 🇫🇷🇮🇱 . ☝️ la 1e partie de la mission est étendue jusqu'en octobre 2020 ✌️ à partir de 2022, revisitera chaque jour les sites qu'il observe. Il devra pour cela changer d'altitude.

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  14. 21. sij
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  15. proslijedio/la je Tweet
    19. sij

    the little satellite that goes down & up, & makes optical images at 5m resolution. and agreed: 👉 on the scientific mission extension until October 2020 with 2 days revisit and 👉on a DAILY revisit mission in 2022 !

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  16. 19. sij

    the little satellite that goes down & up, & makes optical images at 5m resolution. and agreed: 👉 on the scientific mission extension until October 2020 with 2 days revisit and 👉on a DAILY revisit mission in 2022 !

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  17. proslijedio/la je Tweet

    The unprecedented snowfall in St. John's buried countless cars overnight, including this one.

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  18. 17. sij

    So, many of you were right, differences are due to directional effects (BRDF) ! This data set is acquired by , near Sacramento in California, with three viewing directions, 5m resolution AND every second day ! Details & data access:

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  19. 17. sij

    The images were prepared by

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  20. 17. sij

    More than a clue, almost an answer ! Here is a zoom on another part of the image, for the same three acquisitions in the same order. Many answers were right !

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  21. 16. sij

    A little & easy riddle. These images were taken by one satellite, on the same day, processed in the same way, with the same display dynamic. Where does the difference come from ? I'll provide another clue tomorrow. and can't play.

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