Plot Crop Health with Uniformity

FieldInsights

Product Specification

Product Name:Plot Crop Health with Uniformity

Product SKU:71203-00

Revision Date:2024-08-20

Product Overview

Description

Plot 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 NDVI, NDRE, or RGB imagery. 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

Supported Crops

Any Crop

Deliverables Summary

Mosaic NDVI Precision Aligned
Mosaic False Color NIR (NDVI) Precision Aligned
Plot NDVI with Uniformity
Mosaic NDRE Precision Aligned
Mosaic False Color NIR (NDRE) Precision Aligned
Plot NDRE with Uniformity
Mosaic RGB Precision Aligned
Mosaic VARI Precision Aligned
Plot VARI with Uniformity

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 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 Stage	Plant Size
Any Crop	Any	Any

Flight Specifications

Early-Season

✥ 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.
Sensor	Altitude	Speed	Overlap	Flight Direction	Buffer	Heading	Gimbal Pitch	Terrain Informed
65R	150ft (46m)	15mph (7m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Zenmuse P1 (35mm)	100ft (30m)	10mph (5m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Sentera Single	50ft (16m)	6mph (3m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Double 4K (Analytics)	50ft (16m)	6mph (3m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Double 4K (Ag+)	50ft (16m)	6mph (3m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Double 4K (NDVI/NDRE)	50ft (16m)	6mph (3m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Phantom 4 Pro	50ft (16m)	4mph (2m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Phantom 4 RTK	50ft (16m)	4mph (2m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Zenmuse X4S	50ft (16m)	4mph (2m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Zenmuse X5S	50ft (16m)	4mph (2m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Mavic 2 Pro	50ft (16m)	3mph (1.5m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Mavic 3 Enterprise	50ft (16m)	6mph (3m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Mavic 3 Multispectral	50ft (16m)	6mph (3m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On
Zenmuse P1 (35mm)	100ft (30m)	10mph (5m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	On

Mid- to Late- Season

✥ 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.
Sensor	Altitude	Speed	Overlap	Flight Direction	Buffer	Heading	Gimbal Pitch	Terrain Informed
65R	400ft (120m)	22mph (10m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Zenmuse P1 (35mm)	400ft (120m)	22mph (10m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Sentera Single	200ft (60m)	15mph (7m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Double 4K (Analytics)	200ft (60m)	15mph (7m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Double 4K (Ag+)	200ft (60m)	15mph (7m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Double 4K (NDVI/NDRE)	200ft (60m)	15mph (7m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Phantom 4 Pro	200ft (60m)	15mph (7m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Phantom 4 RTK	200ft (60m)	15mph (7m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Zenmuse X4S	200ft (60m)	15mph (7m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Zenmuse X5S	200ft (60m)	15mph (7m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Mavic 2 Pro	200ft (60m)	14mph (6m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Mavic 3 Enterprise	200ft (60m)	14mph (6m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off
Zenmuse P1 (35mm)	200ft (60m)	22mph (10m/s)	75%	Any	40ft (12m)	Forward	-90° (Nadir)	Off

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

Analytic	Variants	NDVI	NDRE	VARI
	Imagery	NDVI (Bayer Filter)	NDRE (Bayer Filter)	RGB
Mosaic NDVI Precision Aligned (82102-01)
Mosaic False Color NIR (NDVI) Precision Aligned (82002-01)
Plot NDVI with Uniformity (83004-00)
Mosaic NDRE Precision Aligned (82103-01)
Mosaic False Color NIR (NDRE) Precision Aligned (82003-01)
Plot NDRE with Uniformity (83005-00)
Mosaic RGB Precision Aligned (82001-01)
Mosaic VARI Precision Aligned (82101-01)
Plot VARI with Uniformity (83003-00)

Mosaic NDVI Precision Aligned (82102-01)

Description

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

Deliverable List

Deliverable	Format	Description
NDVI Mosaic	GeoTiff	NDVI single-band, native resolution, and georeferenced raster

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

* Delivered only in some cases
Deliverable	Format	Description
False Color NIR (NDVI) Mosaic (Preliminary)*	GeoTiff	R and NIR multi-band, native resolution, and non-georeferenced raster
False Color NIR Mosaic (NDVI)	GeoTiff	R and NIR multi-band, native resolution, and georeferenced raster

Plot NDVI with Uniformity (83004-00)

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.

Deliverable List

Deliverable	Format	Description
Plot NDVI with Uniformity	Shapefile, GeoJSON, CSV	Plot-level summary statistics
Subplot NDVI	GeoTiff	NDVI subplot variability

Data Attributes

Plot NDVI with Uniformity

Attribute	Description	Units Metric	Units Imperial
NDVI <DD-Mon>	Average NDVI of 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 NDRE Precision Aligned (82103-01)

Description

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

Deliverable List

Deliverable	Format	Description
NDRE Mosaic	GeoTiff	NDRE single-band, native resolution, and georeferenced raster

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

* Delivered only in some cases
Deliverable	Format	Description
False Color NIR (NDRE) Mosaic (Preliminary)*	GeoTiff	RE and NIR multi-band, full-resolution, and non-georeferenced raster
False Color NIR (NDRE) Mosaic	GeoTiff	RE and NIR multi-band, full-resolution, and georeferenced raster

Plot NDRE with Uniformity (83005-00)

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.

Deliverable List

Deliverable	Format	Description
Plot NDRE with Uniformity	Shapefile, GeoJSON, CSV	Plot-level summary statistics
Subplot NDRE	GeoTiff	NDRE subplot variability

Data Attributes

Plot NDRE with Uniformity

Attribute	Description	Units Metric	Units Imperial
NDRE <DD-Mon>	Average NDRE of 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

* Delivered only in some cases
Deliverable	Format	Description
RGB Mosaic (Preliminary)*	GeoTiff	Visual RGB multi-band, native resolution, and non-georeferenced raster
RGB Mosaic	GeoTiff	Visual RGB multi-band, native resolution, and georeferenced raster

Mosaic VARI Precision Aligned (82101-01)

Description

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

Deliverable List

Deliverable	Format	Description
VARI Mosaic	GeoTiff	VARI single-band, full-resolution, and georeferenced raster

Plot VARI with Uniformity (83003-00)

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.

Deliverable List

Deliverable	Format	Description
Plot VARI with Uniformity	Shapefile, GeoJSON, CSV	Plot-level summary statistics
Subplot VARI	GeoTiff	VARI subplot variability

Data Attributes

Plot VARI with Uniformity

Attribute	Description	Units Metric	Units Imperial
VARI <DD-Mon>	Average VARI of 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