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    View georadar data in Arcgis?!

    maunaloa
    By maunaloa,
    Hi PPL! I'm working with guys, who scanned some territories with GPR (ground penetrating radar). This device collecting many-many datas from the reflected radar waves. The datas are collected by layers, commonly by every 20-50 centimeters. If ya want to find any infrastructural element or archeological thing, ya need to examine these layers. I want to ask ya, anyone tested any ArcGis extension, to view ground radar datas or any seismic datas? This is a bit new for meh, i don't know, how big is

    3D Buffer

    946
    By 946,
    Hi all, Someone knows a tool/software to create 3d buffers from 3d polyline or polygon(not vertical buffer)? I know that for the moment Global_Mapper does it but only in a 15m  given distance and what I need is for bigger areas. Thanks

    MOVED: ERDAS tutorial/training

    Lurker
    By Lurker,
    This topic has been moved to Request. [iurl]http://gisarea.com/index.php?topic=1512.0[/iurl]

    How Can we change the Cell Size of an Image

    deepgis
    By deepgis,
    I need help from GIS experts. I have a landsat-5 TM image with cell size of 28.5 m, I want to resize it with cell size of 30 m because I have three another landsat TM images with 30 m cell size. Please tell me how can i do it.

    IDRISI Taiga file reading error; please help!

    l.eadie
    By l.eadie,
    Hi there, I was wondering if anybody might be able to help me? I'm using Idrisi Taiga and I'm attempting to use the SEGMENTATION tool, however I keep getting an error message. When I put in my band files and click ok, I keep getting the message band4.RST () not found. I've imported all my data to .rst format using Idrisi so I am unsure why this is happening. Any suggestions would be hugely appreciated! Laura

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    • Hello folks! I am trying to use the Lyzenga Algorithm for estimating the depth of water in shallower areas, probably depths under 8-10 meters of lakes. First of all, how accurate is this algorithm in practice? Secondly, lets say i have the band values. can someone explain me how to retrieve those depths? I am following the "Lyzenga Algorithm for Shallow Water Mapping Using Multispectral Sentinel-2 Imageries in Gili Noko Waters" paper, but there are 3 steps of getting NDWIs, NDCIs and after filtering the Sun Glint Correction, then it finally comes to the depth calculating. it end ups in a formula of following: 𝑧 = 28.32 ∗ 𝑋1 − 36.25 ∗ 𝑋2 + 9.42 ∗ 𝑋3 + 16.35 x1 , x2, x3 are RGB values respectively. What do you guys think? can i just apply this formula ? if not, what is the purpose of all the previous steps, and will they change the rgb values anyways?
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