This online platform uses data from the Copernicus Sentinel-5P satellite and shows the daily Sun-induced fluorescence across the globe, as well as monthly, seasonal and yearly moving averages.
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The sun-induced fluorescence (SIF) signal emitted by the chlorophyll-a of terrestrial vegetation has been shown to be a closer indicator of vegetation functioning than other variables traditionally derived from optical remote sensing data.
The TROPOspheric Monitoring Instrument (TROPOMI) aboard the Copernicus Sentinel-5P mission combines a relatively high sensitivity to far-red SIF with a daily global coverage and a medium spatial resolution. In addition to SIF, TROPOMI can provide reflectance data in the 675-775 nm spectral window, which is an important complement to SIF for the characterisation of vegetation structure and functioning. This configuration makes TROPOMI to be a powerful instrument for global SIF mapping.
The Sun-induced fluorescence map shown here is measured by the Tropomi instrument on the Sentinel 5 Precursor satellite. The Tropomi measurements are performed in the visible part of the spectrum. More information on the Tropomi aerosol index measurements and quality assessment can be found in the Product Readme file.
