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How to View NDVI / Vegetation Layer in Hub

The Vegetation Layer uses satellite imagery to help identify areas of a field that may require additional attention.

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Written by Ryan Eby

The Vegetation Layer uses satellite imagery to help identify areas of a field that may require additional attention.

NDVI (Normalized Difference Vegetation Index) measures vegetation health and vigor by comparing reflected near-infrared light with absorbed red light. Healthy vegetation typically appears greener, while areas with lower vigor appear closer to red.

NDVI can help identify where to investigate, but it does not determine the cause of an issue.

Access the Vegetation Layer

  1. Open the Map Control Panel.

  2. Select the toggle next to Vegetation.

  3. Choose one of the available vegetation views:

    • Latest Vegetation Index (NDVI)

    • Short-Term Change

    • Long-Term Change

    • Latest Visible Crop

Latest Vegetation Index (NDVI)

The Latest Vegetation Index displays the most recent satellite imagery available for your property.

Key Information

  • Imagery is captured by Sentinel-2 satellites.

  • Resolution is 10 m x 10 m per satellite pixel.

  • Colors are optimized for color-blind accessibility.

  • Only high-quality imagery is displayed.

View Block Details

Select a block on the map to view:

  • Image date

  • Average NDVI

  • Uniformity

What is Average NDVI?

Average NDVI is the average NDVI value across all satellite pixels within a block.

What is Uniformity?

Uniformity measures how consistent NDVI values are across a block and is calculated using the Coefficient of Variation (CV).

Short-Term Change

Short-Term Change compares the two most recent high-quality NDVI images.

Use this view to identify:

  • Recent changes in crop conditions

  • Areas of improving vegetation

  • Areas of declining vegetation

Change Colors

  • Blue = Increase in greenness

  • Yellow = Little or no change

  • Red = Decrease in greenness

Select a block to view the imagery dates and associated statistics.

Long-Term Change

Long-Term Change compares the latest image with an image captured approximately 30–45 days earlier.

Use this view to:

  • Monitor longer-term crop performance

  • Identify persistent problem areas

  • Track vegetation development over time

Select a block to view the imagery dates and associated statistics.

Latest Visible Crop

The Latest Visible Crop layer displays the most recent visible imagery available for your property.

Use this view to:

  • Assess crop density

  • Evaluate vegetation coverage

  • Identify areas with sparse vegetation

Interpreting NDVI

NDVI is most useful for identifying areas that may require field scouting.

Areas with lower greenness or declining greenness may indicate potential issues such as:

  • Irrigation problems

  • Nutrient deficiencies

  • Pest pressure

  • Other crop stress factors

Additional investigation is required to determine the underlying cause.

Image Availability and Quality

Only imagery that meets quality standards is displayed.

Image quality may be affected by:

  • Cloud cover

  • Cloud shadows

  • Bare soil

  • Reflective ground covers or shade cloth

  • Satellite data quality issues

How Current Is the Latest Image?

Sentinel-2 satellites typically revisit the same area every 5 days. If a recent image does not meet quality requirements, an older image may be displayed.

To view the image date, select a block and review the image details.

Why Don't I See NDVI Imagery?

NDVI imagery may be unavailable if:

  • The Vegetation layer is turned off.

  • Recent imagery does not meet quality standards.

  • A block was recently created or updated and imagery is still processing.

  • The block has not been added to your account.

New or updated blocks may take up to 48 hours before imagery becomes available.

FAQs

What is NDVI?

NDVI (Normalized Difference Vegetation Index) is a satellite-based measurement used to assess vegetation health and vigor.

What do the NDVI colors mean?

Greener areas generally indicate healthier or more vigorous vegetation. Areas closer to red may indicate lower vegetation health or areas that need investigation.

What is the image resolution?

NDVI imagery is displayed at a 10 m x 10 m resolution, with each pixel representing a 10 m x 10 m area on the ground.

What does Short-Term Change show?

Short-Term Change compares the two most recent high-quality NDVI images to highlight recent changes in vegetation.

What does Long-Term Change show?

Long-Term Change compares the latest image with imagery from approximately 30–45 days earlier to show longer-term vegetation trends.

How often is NDVI updated?

Imagery is updated whenever new high-quality Sentinel-2 imagery is available. Under normal conditions, new imagery is typically available every few days.

Can NDVI tell me what is wrong with my crop?

No. NDVI highlights areas that may require attention but does not identify the specific cause of crop stress.

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