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    Precision Agriculture Mapping

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    Precision Agriculture Mapping

    The Food and Agriculture Organization (FAO) of the United Nations, the world’s population will reach 9.1 billion, 34 percent higher than today’s population, by 2050. Due to this expected growth, there is pressure throughout the world for higher agricultural production and reliable crop status information. To achieve these objectives, improved management of the world's agricultural resources are required, especially in developing countries.

    Agriculture Precision Mapping

    WorldView-2 MS 1.6m Vegetation Index (WV-VI)* 20150109 / South Africa

    Precision Mapping Agriculture

    Google Earth™ KMZ / WV-VI Index, Maize Pivot (Red High) 1.6m

    (*) (NIR2 - Red) / (NIR2 + RED) = WV-VI

    To make this happen it is first necessary to obtain reliable crop status information on not only the types, health status, quality, quantity and location of these resources.

    Geographic Information Systems (GIS) tools and online web resources can help farmers to conduct crop forecasting and manage their agriculture production by utilizing multispectral imagery collected by Satellites, fix wing Aircraft or Unmanned Aerial Vehicles (UAV's) and processed to provide NDVI and other vegetation soil indices, to identify crop stress. This data is used in regional GIS or CAD management systems and web portals. The ability of GIS to analyze and visualize agricultural environments and workflows has proven to be very beneficial to those involved in the farming industry.

    When agriculture management software is not in place, vegetation and soil index imagery can be reviewed in Google Earth Pro™ for regional farmers to identify areas in the fields, requiring a closer analysis, to decide if additional irrigation or fertilization of the crop is required.

    View article on Agriculture Crop Management and Production Improved by Satellite Remote Sensing Technology and Geographic Information Systems (GIS)

    WorldView-2 NDVI Index and Moisture Map - South Africa

    WorldView-2 Satellite Moisture Map NDVI

    Image Copyright © DigitalGlobe. All rights reserved.

    High and Medium Resolution Satellite Imagery

    Satellite Imagery is very effective for larger areas with no requirements for permitting, mobilization/ demobilization and avoid any security issues. Satellite sensors deliver 16-Bit 4-Band (B,G,R,N) or 8-Band (C,B,G,Y,R,RE,N,N2) Multispectral pixel resolutions from 1.2m to 5m. Pansharpened vegetation indices can be delivered with a resolution of 30cm, 40cm or 50cm, providing greater details for analysis. The high and medium resolution Satellite sensors used for precision agriculture, acquire new Imagery when orders are placed, with minimum commitments of 50 to 100 Km², per area.

    To download various NDVI samples and save or open the KMZ file in Google Earth Pro™, please click on one of the links below:

    Pivot ID-66 / NDVI (WV-VI) 1.6m

    Pivot ID-40 / Natural Color 40cm:

    Pivot ID-40 / Pansharpened NDVI Index 40cm

    ESA Sentinel-2 Satellite Constellation

    The Sentinel-2 Satellite sensors acquires 10m 4-band (BGRN) Multispectral, 20m 4-band RedEdge and 2-band Short Wave InfraRed (SWIR) and 60m 3-band Coastal Aerosol, Water Vapour and SWIR Cirrus Imagery providing a choice for a good selection to search for cloud free Imagery for the Area Of Interest (AOI). This Imagery is very suitable to deliver 10m resolution NDVI or other vegetation index Imagery and moisture maps in KMZ format. The KMZ vegetation index image files can be imported into Google Earth™, similar to the Images below. Because the Sentinel-2 Satellite Imagery, provided by the European Space Agency (ESA), can be downloaded for free and requires only vegetation and soil index image processing, providing a cost effective Ag solution, covering large areas around the globe, were 10m resolution is acceptable or desired due to limited financial resources.

    The satellites in the SENTINEL-2 constellation will provide a revisit time of 5 days at the equator in cloud-free conditions.

    To download a Tutorial to create polygon KML/KMZ files for a single or multiple areas in Google Earth Pro™, please click HERE.

    Precision Mapping

    Google Earth™ / Sentinel-2 NDVI** Vegetation Index - 20160719 - Michigan, U.S.A.

    (**) (NIR - Red) / (NIR + Red) = NDVI

    When the KMZ or shapefiles for the producing farm fields cannot be provided, SIC can deliver the Sentinel-2 Satellite Imagery and vegetation index (NDVI or SAVI) were crop stress can be identified on the Index and polygons can be produced and entered into a GPS tablet or handheld to locate the areas to be analyzed and treated in the field.

    NDVI Scale from -1 Low Reflectance to +1 High Reflectance

    The vegetation indices provided will cover multispectral reflectance values from 0.5 to 1.0 or any other suitable range.

    Precision Mapping Egypt

    Google Earth™/ Sentinel-2 Soil Adjusted Vegetation Index (SAVI***) - 20160711 - Alexandria, Egypt

    (***) (NIR - Red) / (NIR + Red) x (1 + L) = SAVI L= 0.5 Constant soil factor for intermediate vegetation cover.

    For areas throughout Africa and other regions around the World, experiencing agriculture production problems in quality or quantity, the Sentinel-2 Satellite sensor can support the regional farmers and farm cooperatives and other organizations, with timely and critical information.

    For more information in how SIC can assist, please CONTACT US.

    Normalized Difference Vegetation Index (NDVI)

    The agriculture, forestry and environmental industry are using the standard NDVI index for many years but with the availability of hyperspectral sensors and high resolution Satellite sensors, such as WorldView-2 and WorldView-3, utilizing an expanded Multispectral reflectance range, SIC can provide a variety of vegetation indices to filter the correct band combinations for vegetation, soil and environmental analysis to support crop, forest and environmental project management.

    CCCI - Canopy chlorophyll content index
    CIRedEdge - Red-edge chlorophyll index
    CWSI - Crop water stress index
    GNDVI - Green normalized difference vegetative index
    LAI - Leaf area index
    MRESAVI - Modified RESAVI
    NDRE - Normalized difference red edge
    NDVI - Normalized difference vegetative index
    NNI - Nitrogen nutrition index
    OMNBR - Optimal multiple narrow band reflectance index

    OSAVI - Optimized soil-adjusted vegetation index
    REDVI - Red-edge difference vegetation index
    REIP - Red-edge inflation point
    RERDVI - Red-edge renormalized difference vegetation index
    RERVI - Red-edge ration vegetation index
    RESAVI - Red-edge soil-adjusted vegetation index
    RVI - Ration vegetation index
    SAVI - Soil-adjusted vegetation index
    TCARI - Transformed chlorophyll absorption reflection index
    WVVI - WorldView Improved Vegetation Index

    Managed Canopy Assessment

    Managed Canopy Assessment

    Image Copyright © DigitalGlobe. All rights reserved.

    Vegetation and Soil Index Maps

    Green Vegetation

    Green Vegetation Index Maps

    Soil Zone

    Soil Zone Index

    Tree Grading/ Plant Counting

    Tree Grading

    Image Copyright © DigitalGlobe

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