Mapping Mangrove extent with Sentinel-2 : segmentation classification in SAGA GIS 4+

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  • เผยแพร่เมื่อ 30 พ.ย. 2024

ความคิดเห็น • 31

  • @lovensiaalbasit1520
    @lovensiaalbasit1520 3 ปีที่แล้ว

    Thank you for the excellent tutorial. I wonder, why do you prefer the RGB band combination instead of false-color composite for Mangrove (4811)? Does it make any difference if I use the latter band combination? Thanks in advance.

    • @trowertower
      @trowertower  3 ปีที่แล้ว

      No it shouldn't make a big difference. Try and see.

    • @milanalfonso4814
      @milanalfonso4814 3 ปีที่แล้ว

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    • @bobbyroman6785
      @bobbyroman6785 3 ปีที่แล้ว

      @Milan Alfonso Instablaster :)

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      @milanalfonso4814 3 ปีที่แล้ว

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    • @milanalfonso4814
      @milanalfonso4814 3 ปีที่แล้ว

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  • @HydrographicSurveyor
    @HydrographicSurveyor 2 ปีที่แล้ว

    😃👏👏👏👍

  • @criscayetano69
    @criscayetano69 3 ปีที่แล้ว

    Can I do accuracy test for this mapping?
    If yes may i know how?
    please
    Thank you

  • @aachannel3949
    @aachannel3949 4 ปีที่แล้ว

    hello sir. have you experienced do a processing for mangrove dealienation using ecognition software?

  • @smarajitnaskar9495
    @smarajitnaskar9495 3 ปีที่แล้ว

    how do you know what part is mangrove and what part is other types of vegetation?

  • @ricardofelipelo
    @ricardofelipelo 6 ปีที่แล้ว

    Hey I'd like to do a before-after mangrove area comparison, do you know where I could find the files for before and files for after?

    • @trowertower
      @trowertower  6 ปีที่แล้ว +1

      Have a look here: sagatutorials.wordpress.com/accessing-satellite-imagery/

    • @ricardofelipelo
      @ricardofelipelo 6 ปีที่แล้ว

      Thank you!

  • @flaviatamarindo1274
    @flaviatamarindo1274 6 ปีที่แล้ว

    Hello, do you think it is possible to work with LANDSAT 7 or 8 instead of SENTINEL-2?

    • @trowertower
      @trowertower  6 ปีที่แล้ว

      Yes totally possible. Try it.

    • @flaviatamarindo1274
      @flaviatamarindo1274 6 ปีที่แล้ว

      it worked but did not turn out well when i did the segmentation, probably the color was not very clear. but thanks for the tutorial! do you know other methods to map mangrove area?

    • @trowertower
      @trowertower  6 ปีที่แล้ว

      I suggest playing with the bands you use for segmentation and some of the segmentation settings

  • @cikponti4879
    @cikponti4879 5 ปีที่แล้ว

    Hi. how do you download satellite data? it seems like i don't have the button to download the image

    • @cikponti4879
      @cikponti4879 5 ปีที่แล้ว

      I mean there's no link for download button for sentinel-2

    • @trowertower
      @trowertower  5 ปีที่แล้ว

      Hi - yes you can no longer download S2 data from Remote pixel. I recommend using sentinel hub EO to access the data. sentinel-hub.com/explore/eobrowser

    • @cikponti4879
      @cikponti4879 5 ปีที่แล้ว

      @@trowertower thank you for the respond. Yeah I already did manage to download the satellite data. I have a further question, how did you manage to trace mangrove on the satellite image map when you were selecting segments?

    • @trowertower
      @trowertower  5 ปีที่แล้ว

      @@cikponti4879 What state (time point) in the video are your referring to?

    • @cikponti4879
      @cikponti4879 5 ปีที่แล้ว

      @@trowertower 4:15

  • @husnanhabib1777
    @husnanhabib1777 6 ปีที่แล้ว

    min, untuk memunculkan "Merge Selection" gimana ? terima kasih sebelumnya

    • @trowertower
      @trowertower  6 ปีที่แล้ว

      Make sure you have the polygon data you want to merge selected in the data tab and then right-click on the poygon data in the map window. The 'merge selection. should appear in the drop down menu.

  • @rizalfadlanabida9447
    @rizalfadlanabida9447 6 ปีที่แล้ว

    tutorial secara tertulisnya di web apa gan?? Videonya mantab

    • @trowertower
      @trowertower  6 ปีที่แล้ว

      sagatutorials.wordpress.com/mapping-mangrove-extent-with-sentinel-2/