Read-me: Switch to collection 6.1 (2023-04-21)

Summary

MODIS FC data and statistics starting from January 2023 will be processed with MODIS MCD43A4.061 (collection 6.1).

MODIS FC data and statistics prior to January 2023 will be progressively reprocessed with v6.1.

For analysis products and statistics that read the full time series (e.g,. monthly differences, anomalies and deciles), we have implemented a 'collection fallback' (to v6) for files that have not yet been reprocessed with v6.1.

• Data files and folders with _006* are saved copies of the data up to and including January 2023 processed with MODIS MCD43A4.006 (collection 6).
• Data files and folders with _061* are data from at least January 2023 processed with MODIS MCD43A4.061.
• Data files and folders with no _006* or _061* code are the live versions updated each month and include the forward and backward processing with MODIS MCD43A4.061.

This (hopefully) mean thats the reports and statistics can continue to be produced reasonably consistently during the back-processing. However, note that monthly time series statistics will use a blend of 6- and 6.1-derived MODIS FC data. This is deemed fine if we assume that the differences between MCD43A4.006 and MCD43A4.061 impart little difference on the monthly MODIS FC data.

• Initially only January 2023 is provided for comparison, but this will change as the back-processing progresses.
• To check if time series statistics have been updated, it should be possible to compare with the saved corresponding _006* data.

More information and questions

Email geoglam.rapp at csiro.au