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Product Specification

Product Name:Plot Masked Crop Health with Uniformity
Product SKU:71203-05
Revision Date:2024-05-22

Product Overview

Description

Plot Masked Crop Health with Uniformity provides plot-level measurements of vegetation indices including Normalized Difference Vegetation Index (NDVI), Normalized Difference Red Edge Index (NDRE), or Visible Atmospherically Resistant Index (VARI). This product utilizes precision aligned orthomosaics derived from high-resolution RGB, NDVI, or NDRE imagery. This product also includes vegetation masking and reports reflectance and vegetation index values based on the masking layer. Specific deliverables for this product are sensor dependent.

Recommended Use Cases

  • Plant Growth
  • Canopy Development
  • Canopy Senescence
  • Crop Health
  • Crop Stress
  • Nutrient Status
  • Disease
  • Water Stress
  • Plot Quality
  • Plot Deactivation
  • Area of Interest Variability
  • Vegetation Masked

Supported Crops

  • Any Crop

Deliverables Summary

  • Mosaic False Color NIR (NDVI) Precision Aligned
  • Mosaic NDVI Precision Aligned
  • Mosaic NDVI Masked Precision Aligned
  • Plot NDVI with Uniformity and Masking
  • Mosaic False Color NIR (NDRE) Precision Aligned
  • Mosaic NDRE Precision Aligned
  • Mosaic NDRE Masked Precision Aligned
  • Plot NDRE with Uniformity and Masking
  • Mosaic RGB Precision Aligned
  • Mosaic VARI Precision Aligned
  • Mosaic VARI Masked Precision Aligned
  • Plot VARI with Uniformity and Masking

Requirements

General Requirements

  • Requires FieldAgent Enterprise License (61006-##) or Enterprise Analytics Upload/Export Surcharge (71010-09)
  • Requires Plot Project Setup (71200-00)
  • Imagery collected following all "Data Capture Requirements"
  • Imagery uploaded to the FieldAgent Field created by Plot Project Setup (71200-00)
  • Order Analytics submitted for Plot Masked Crop Health with Uniformity with appropriate Product Variant selected for uploaded Survey

Data Capture Requirements

Imagery Type

  • NDVI (Bayer Filter)
  • NDRE (Bayer Filter)
  • RGB

Ground Sample Distance

  • Less than 1cm (Early-Season)
  • Less than 4cm (Mid- to Late- Season)

Timing by Crop

Crop Timing/Growth StagePlant Size
Any CropEarly Season; Mid- to Late- SeasonAny

Flight Specifications

Early-Season
SensorAltitudeSpeedOverlapFlight DirectionBufferHeadingGimbal PitchTerrain Informed
65R150ft (46m)15mph (7m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Zenmuse P1 (35mm)100ft (30m)10mph (5m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Sentera Single50ft (16m)6mph (3m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Double 4K (Analytics)50ft (16m)6mph (3m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Double 4K (Ag+)50ft (16m)6mph (3m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Double 4K (NDVI/NDRE)50ft (16m)6mph (3m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Phantom 4 Pro50ft (16m)4mph (2m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Phantom 4 RTK50ft (16m)4mph (2m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Zenmuse X4S50ft (16m)4mph (2m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Zenmuse X5S50ft (16m)4mph (2m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Mavic 2 Pro50ft (16m)3mph (1.5m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Mavic 3 Enterprise50ft (16m)6mph (3m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Mavic 3 Multispectral50ft (16m)6mph (3m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Zenmuse P1 (35mm)100ft (30m)10mph (5m/s)75%Any40ft (12m)Forward-90° (Nadir)On
Very small plot trials may require increased overlap, increased buffer, and/or decreased altitude to ensure a minimum of 6 flight passes over the trial.
Mid- to Late- Season
SensorAltitudeSpeedOverlapFlight DirectionBufferHeadingGimbal PitchTerrain Informed
65R400ft (120m)22mph (10m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Zenmuse P1 (35mm)400ft (120m)22mph (10m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Sentera Single200ft (60m)15mph (7m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Double 4K (Analytics)200ft (60m)15mph (7m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Double 4K (Ag+)200ft (60m)15mph (7m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Double 4K (NDVI/NDRE)200ft (60m)15mph (7m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Phantom 4 Pro200ft (60m)15mph (7m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Phantom 4 RTK200ft (60m)15mph (7m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Zenmuse X4S200ft (60m)15mph (7m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Zenmuse X5S200ft (60m)15mph (7m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Mavic 2 Pro200ft (60m)14mph (6m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Mavic 3 Enterprise200ft (60m)14mph (6m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Zenmuse P1 (35mm)200ft (60m)22mph (10m/s)75%Any40ft (12m)Forward-90° (Nadir)Off
Very small plot trials may require increased overlap, increased buffer, and/or decreased altitude to ensure a minimum of 6 flight passes over the trial.

Environmental Conditions

Lighting
Imagery should be captured between the time of 3 hours after sunrise and 3 hours before sunset. Consistent lighting conditions required for best results, including avoidance of hard shadows cast over the field which cause bright spots and dark spots in the dataset.
Wind
Wind conditions should be within the specified limits of the aircraft or system being used to carry the imaging sensor.
Precipitation
There should be no active precipitation during imagery capture.

Deliverables

Analytics by Product Variant

AnalyticVariantsNDVINDREVARI
ImageryNDVI (Bayer Filter)NDRE (Bayer Filter)RGB
Mosaic False Color NIR (NDVI) Precision Aligned (82002-01)
Mosaic NDVI Precision Aligned (82102-01)
Mosaic NDVI Masked Precision Aligned (82102-03)
Plot NDVI with Uniformity and Masking (83004-01)
Mosaic False Color NIR (NDRE) Precision Aligned (82003-01)
Mosaic NDRE Precision Aligned (82103-01)
Mosaic NDRE Masked Precision Aligned (82103-03)
Plot NDRE with Uniformity and Masking (83005-01)
Mosaic RGB Precision Aligned (82001-01)
Mosaic VARI Precision Aligned (82101-01)
Mosaic VARI Masked Precision Aligned (82101-03)
Plot VARI with Uniformity and Masking (83003-01)

Mosaic False Color NIR (NDVI) Precision Aligned (82002-01)

Description

A false-color red (R) and near-infrared (NIR) multi-band mosaic provided at full resolution and georeferenced.

Deliverable List

DeliverableFormatDescription
Mosaic: False Color NIR (NDVI) (Preliminary)*GeoTiffR and NIR multi-band, native resolution, and non-georeferenced raster
Mosaic: False Color NIR (NDVI)GeoTiffR and NIR multi-band, native resolution, and georeferenced raster
* Delivered only in some cases

Mosaic NDVI Precision Aligned (82102-01)

Description

A Normalized Difference Vegetation Index (NDVI) single-band mosaic provided at native resolution and georeferenced.

Deliverable List

DeliverableFormatDescription
Mosaic: NDVIGeoTiffNDVI single-band, native resolution, and georeferenced raster

Mosaic NDVI Masked Precision Aligned (82102-03)

Description

A Normalized Difference Vegetation Index (NDVI) single-band mosaic provided at native resolution, georeferenced, and masked to only include pixels classified as vegetation.

Deliverable List

DeliverableFormatDescription
Masked: NDVIGeoTiffNDVI single-band, full-resolution, georeferenced, and vegetation-masked raster

Plot NDVI with Uniformity and Masking (83004-01)

Description

Normal Difference Vegetation Index (NDVI) is a commonly used indicator of Crop Health that is useful in differentiating a healthy crop from a stress or sensing crop or from bare soil. NDVI uses imagery containing Red and Near-Infrared spectral bands. While NDVI does not necessarily diagnose the source of crop stress, it is a useful metric to quantify variability and location of relative strong and poor crop performance. Uniformity describes variation at the plot-level using statistical summary of sub-plot-level data. Masking describes measurements and summary statistics representing only pixels classified as vegetation derived from the masking layer.

Deliverable List

DeliverableFormatDescription
Plot NDVI with Uniformity and MaskingShapefile, GeoJSON, CSVPlot-level summary statistics
Subplot: NDVIGeoTiffNDVI subplot variability

Data Attributes

Plot NDVI with Uniformity and Masking
AttributeDescriptionUnits MetricUnits Imperial
NDVI <DD-Mon>Average NDVI of the plot
Index: NDVI - Masked <DD-Mon>Average NDVI reflectance of only the plants in the plot
NDVI - Median Subplot <DD-Mon>Median of the subplot NDVI
NDVI - Subplot Std. Dev. <DD-Mon>Standard Deviation of the subplot NDVI
NDVI - Min Subplot <DD-Mon>Minimum of the subplot NDVI
NDVI - Max Subplot <DD-Mon>Max of the subplot NDVI
NDVI - Subplot Range <DD-Mon>Range of the subplot NDVI

Mosaic False Color NIR (NDRE) Precision Aligned (82003-01)

Description

A false-color red-edge (RE) and near-infrared (NIR) multi-band mosaic provided at full resolution and georeferenced.

Deliverable List

DeliverableFormatDescription
Mosaic: False Color NIR (NDRE) (Preliminary)*GeoTiffRE and NIR multi-band, full-resolution, and non-georeferenced raster
Mosaic: False Color NIR (NDRE)GeoTiffRE and NIR multi-band, full-resolution, and georeferenced raster
* Delivered only in some cases

Mosaic NDRE Precision Aligned (82103-01)

Description

A Normalized Difference Red-Edge Index (NDRE) single-band mosaic provided at native resolution and georeferenced.

Deliverable List

DeliverableFormatDescription
Mosaic: NDREGeoTiffNDRE single-band, native resolution, and georeferenced raster

Mosaic NDRE Masked Precision Aligned (82103-03)

Description

A Normalized Difference Red-Edge Index (NDRE) single-band mosaic provided at native resolution, georeferenced, and masked to only include pixels classified as vegetation.

Deliverable List

DeliverableFormatDescription
Masked: NDREGeoTiffNDRE single-band, full-resolution, georeferenced, and vegetation-masked raster

Plot NDRE with Uniformity and Masking (83005-01)

Description

Normal Difference Red-Edge Index (NDRE) is a derivate of NDVI using the Red-Edge spectral band rather than the Near-Infrared spectral band. NDRE uses imagery containing Red-Edge and Near-Infrared spectral bands. NDRE is more sensitive to variation in Crop Stress during periods of peak canopy cover than NDVI and is best used for mid-season Crop Health assessment. NDRE is also particularly sensitive to crop nutrient stress, including crop nitrogen status. Uniformity describes variation at the plot-level using statistical summary of sub-plot-level data. Masking describes measurements and summary statistics representing only pixels classified as vegetation derived from the masking layer.

Deliverable List

DeliverableFormatDescription
Plot NDRE with Uniformity and MaskingShapefile, GeoJSON, CSVPlot-level summary statistics
Subplot: NDREGeoTiffNDRE subplot variability

Data Attributes

Plot NDRE with Uniformity and Masking
AttributeDescriptionUnits MetricUnits Imperial
NDRE <DD-Mon>Average NDRE of the plot
Index: NDRE - Masked <DD-Mon>Average NDRE reflectance of only the plants in the plot
NDRE - Median Subplot <DD-Mon>Median of the subplot NDRE
NDRE - Subplot Std. Dev. <DD-Mon>Standard Deviation of the subplot NDRE
NDRE - Min Subplot <DD-Mon>Minimum of the subplot NDRE
NDRE - Max Subplot <DD-Mon>Max of the subplot NDRE
NDRE - Subplot Range <DD-Mon>Range of the subplot NDRE

Mosaic RGB Precision Aligned (82001-01)

Description

A Visual Red, Green, and Blue (RGB) multi-band mosaic provided at native resolution and georeferenced.

Deliverable List

DeliverableFormatDescription
Mosaic: RGB (Preliminary)*GeoTiffVisual RGB multi-band, native resolution, and non-georeferenced raster
Mosaic: RGBGeoTiffVisual RGB multi-band, native resolution, and georeferenced raster
* Delivered only in some cases

Mosaic VARI Precision Aligned (82101-01)

Description

A Visible Atmospherically Resistant Index (VARI) single-band mosaic provided at native resolution and georeferenced.

Deliverable List

DeliverableFormatDescription
Mosaic: VARIGeoTiffVARI single-band, full-resolution, and georeferenced raster

Mosaic VARI Masked Precision Aligned (82101-03)

Description

A Visible Atmospherically Resistant Index (VARI) single-band mosaic provided at native resolution, georeferenced, and masked to only include pixels classified as vegetation.

Deliverable List

DeliverableFormatDescription
Masked: VARIGeoTiffVARI single-band, full-resolution, georeferenced, and vegetation-masked raster

Plot VARI with Uniformity and Masking (83003-01)

Description

Visible Atmospherically Resistant Index (VARI) provides an approach to assessing Crop Health using only a RGB camera. VARI uses RGB imagery or multispectral imagery with Red, Green, and Blue spectral bands. VARI was developed to correlate with canopy cover and can be used as an indicator of Crop Health when NIR imagery is unavailable (i.e., pseudo-NDVI). Uniformity describes variation at the plot-level using statistical summary of sub-plot-level data. Masking describes measurements and summary statistics representing only pixels classified as vegetation derived from the masking layer.

Deliverable List

DeliverableFormatDescription
Plot VARI with Uniformity and MaskingShapefile, GeoJSON, CSVPlot-level summary statistics
Subplot: VARIGeoTiffVARI subplot variability

Data Attributes

Plot VARI with Uniformity and Masking
AttributeDescriptionUnits MetricUnits Imperial
VARI <DD-Mon>Average VARI of the plot
Index: VARI - Masked <DD-Mon>Average VARI reflectance of only the plants in the plot
VARI - Median Subplot <DD-Mon>Median of the subplot VARI
VARI - Subplot Std. Dev. <DD-Mon>Standard Deviation of the subplot VARI
VARI - Min Subplot <DD-Mon>Minimum of the subplot VARI
VARI - Max Subplot <DD-Mon>Max of the subplot VARI
VARI - Subplot Range <DD-Mon>Range of the subplot VARI