NEODAAS has developed a suite of satellite indicators, from key biogeochemical variables, representative of the status of the marine and terrestrial ecosystems. These indicators can be explored to inform regional analysis, add context to short-term trends and specific events, and highlight potential correlations between biogeochemical and physical variables.
The NEODAAS Satellite Indicators Suite is currently composed of:
- Time series – the average values of a variable for a region of interest. For variables that present a distinct seasonality, such as chlorophyll concentration, annual cycles can be extracted from the original signal.
- Anomalies – computed by subtracting a reference value from the observations. Climatologies provide a measure of the typical annual cycle and can be used to derive daily anomaly time series that reveal changes in the timing and amplitude of seasonal peaks.
- Trends – increases or decreases in a variable over a long period of time, accounting for the seasonal and interannual components of the signal.
While these products can be valuable to industry, governmental agencies, policymakers and the general public, the NEODAAS Satellite Indicators Suite is targeted towards researchers wishing to incorporate data from longer time series or wider spatial extents into their studies, supporting models and/or in situ measurements, to help optimise the impact of their work.
For more details on the NEODAAS Satellite Indicators Suite, with particular focus on the Ocean Indicators, please visit the news article or refer to the full report published on Zenodo. Similar techniques can be expanded to indicators for terrestrial and freshwater systems so please contact us if you are interested in discussing.