RECI

   The chlorophyll index (CI) is applied to calculate the total amount of chlorophyll in plants. In general, this index contains two separate bands: CIgreen and CIred-edge. These bands are responsive to slight variations in the chlorophyll content and are consistent for most types of plants. In other words, the CI is a relatively accurate indicator of plant health and can be effectively used in nutrient management throughout the season. 

CIred-edge takes advantage of a narrow spectral band between the red and the near-infrared (NIR) bands of the plant reflectance range. The red-edge chlorophyll index is calculated using the following equation:

• RECI = (NIR /RED) – 1

The RECI values are not normalised. Typically the range of values is between 0 and 15 however values can fall outside this range. Any values which are outside of this ranges will be shown in the values for either 0 or 10. An arrow at the end of the colour map denotes values outside of the range have been found in this instance.

The colour map used for RECI is shown to the right of the image.

The data is available at 20 metre resolution.