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    Raster calculator addition problems

    Maya007
    By Maya007,
    Hello, I was trying to add several raster layers with values 0 and 1 using raster calculator. The raster layers have different spatial extents so i used the layer with maximum area as the processing extent in the calculator. But the results are weird and range of results are ranging from -2000 to +2000. Why is it so or am i missing something important while doing raster additions? Please drop in your comments. Thanks in advance, Maya

    Detecting plant disease by remote sensing

    Jazzscout
    By Jazzscout,
    Hi, I want to develop a workflow to detect a specific disease in potato plants(potato blight) by remote sensing. I have acquired the images of the potato field by mounting a multispectral camera on a drone that flew at an altitude of 5m above the plants. The multispectral camera has 5 bands namely: Blue,Green,Red,NIR and RedEdge. I have converted the DN(raw digital number) values of all bands in reflectance values and also applied lens correction and also aligned

    GIS in Energy Course

    indepthresearchservice
    By indepthresearchservice,
    Event: GIS in Energy Course Venue: Indepth Research Services, Nairobi, Kenya. Event Date: 26th– 30th March 2018 NITA CERTIFIED RECENT CLIENTS INTRODUCTION GIS is a computer-based tool for the storage, manipulation, and analysis of geographically referenced information. It is a system of hardware and software used for performing multiple functions related to geographic data. Providing energy sector organizations with access to complete information significantly reduc

    GIS for Economics and Business Course

    indepthresearchservice
    By indepthresearchservice,
    Event: GIS for Economics and Business Course Venue: Indepth Research Training Centre, Nairobi, Kenya. Event Date: 26th March– 30th March 2018 NITA CERTIFIED RECENT CLIENTS  INTRODUCTION Geographic Information Systems (GIS) and mapping have been deployed by many diverse organizations throughout the public and private sectors. Many government and nonprofit organizations are using GIS to add value within the public sector. While these organizations are more open and pu

    Web-based GIS and Mapping Course

    indepthresearchservice
    By indepthresearchservice,
    Event: Web-based GIS and Mapping Course Venue: Indepth Research Services, Nairobi, Kenya. Event Date: 26th March – 30th March 2018 NITA CERTIFIED RECENT CLIENTS   INTRODUCTION Web mapping focuses on disseminating and processing geographic information by means of Internet and World Wide Web. Combination of the web and GIS (Geographic Information Systems) has unlocked the potential of GIS, and put online maps and geospatial intelligence in the o

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