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Fields Benchmarking Dashboard by Farm
What is it?
The interactive Dashboard makes a comparison between fields by evaluating the vegetation index (NDVI), associated with biomass, during a defined analysis period. With the average NDVI data per field on the available dates, statistical analysis are carried out that allow determining the behavior of the fields in that period, knowing which one has higher biomass values and the variability of each one. On the interactive board you will find:
You will find in this section a general summary of the Farm, the number of fields to be compared and the area covered, togehter with a chart classifying the comprised crop area.
In the upper bar, which remains fixed throughout the board, a period of dates is shown, which correspond to the first and last image analyzed.
In the table, discriminated by field, the minimum, maximum, average NDVI value and its standard deviation are indicated, allowing the indicators to be ordered from highest to lowest!
This interactive graph is ideal for evaluating the variability of the farms, using six measures of descriptive statistics of position:
- median as central value.
- the mean as a measure of dispersion.
- the 25th and 75th percentiles located at the ends of the boxes represent the variability: the greater the amplitude, the greater the instability.
- the trailing ends symbolize the minimum and maximum values of NDVI.
The evolution of the NDVI index is displayed for each farm.
Being interactive, you can check the average NDVI for each date.
NDVI Time Series
In this section, you will find the NDVI Time Series curve for each field and an average curve for all the fields.
The interaction with this graph allows the selection and comparison of the curves of different farms analyzing the behavior of the biomass levels for the selected period.
To close the comparative analysis, two Rankings are observed, the first one based on the biomass level for each field, calculated through the integral of the NDVI Time Series; the second ranking represents the variability of the field considering the mean standard deviation.
In the event that there is a lack of images on the dates of the selected period, it is necessary to stop at the source of the data and how the time series is generated.
Satellite images of the Sentinel 2 sensor are used, as any optical sensor is affected by the presence of clouds. When an image with a cloud is detected, it is discarded, if said image is within the range of the analysis period, an interpolation is performed in order to obtain the complete time series, on the other hand, if the images are at the end of the range. analysis, they are discarded, the end of the series being shortened to the last available image without clouds.
The interpolation of images is carried out considering the average NDVI values of the previous and the next images without clouds, this process returns an average NDVI value to replace the discarded image by clouds.
No image appears and no clouds?
It can also happen that an image is not available in the image repository, in this case the interpolation is not performed and it is not considered in the analysis.
How is it generated?
To generate the interactive Benchmarking dashboard, perform the following steps:
- Accessing Farm 360, go to the Reports icon and choose the Benchmarking report.
- Follow the prompts, you have the possibility to select the following filters:
- Seeding date period.
- Select the analysis period.
- Click on “Generate”.
- Go to the section “Created” and you will find a button to access the interactive dashboard.