IMOS MODIS: Daily Nanoplankton Fraction from Ocean Color Satellite Data

Satellite-derived estimates of nanoplankton fraction in ocean surface waters, produced from MODIS sensor data on the Aqua satellite. The data are generated using an empirical algorithm described in published literature and are provided as daily files. Production of contemporary MODIS data ceased on 2024-12-26.

Use Cases

• Modeling phytoplankton size class distributions based on satellite-derived chlorophyll-a concentrations.
• Studying temporal changes in nanoplankton abundance in ocean surface layers based on daily data files.
• Validating ocean biogeochemical models using the experimental size fraction products.
• Investigating regional differences in phytoplankton communities using calibration data from the Atlantic and Indian Oceans.

Strengths

• Data are derived from the MODIS sensor on the Aqua satellite, a well-established remote sensing platform.
• The algorithm is described in peer-reviewed literature from 2010 and 2012, providing methodological transparency.
• Data are provided as daily files, suggesting a high temporal resolution for time-series analysis.

Limitations

• The products are described as unvalidated experimental products, requiring users to familiarize themselves with underlying algorithms.
• Column-level documentation is absent; field semantics must be inferred after download.
• Production of contemporary MODIS data ceased at 2024-12-26, limiting the time series for recent studies.

Provenance

Source

Australian Ocean Data Network (AODN) / Integrated Marine Observing System (IMOS).

Collection Method

Derived from multi-spectral measurements by the MODIS sensor on the Aqua satellite, processed using the OC3 model and Brewin et al. (2012) algorithm.

Time Range

Covers the MODIS operational period up to 2024-12-26.

Freshness

Last updated 2026-07-10 18:20:37.537770; freshness should be verified as data production ceased in 2024.

Geography

Likely covers ocean areas observed by the MODIS sensor, with calibration data from the Atlantic and Indian Oceans.