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Discussion papers | Copyright
https://doi.org/10.5194/essd-2018-81
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

  25 Jul 2018

25 Jul 2018

Review status
This discussion paper is a preprint. A revision of the manuscript is under review for the journal Earth System Science Data (ESSD).

A 40-year global dataset of visible channel remote sensing reflectances and coccolithophore bloom occurrence derived from the Advanced Very High Resolution Radiometer catalogue

Benjamin R. Loveday and Timothy Smyth Benjamin R. Loveday and Timothy Smyth
  • Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH, UK

Abstract. A consistently calibrated 40-year length dataset of visible channel remote sensing reflectance has been derived from the Advanced Very High Resolution Radiometer (AVHRR) sensor global time-series. The dataset uses as its source the Pathfinder Atmospheres – Extended (PATMOS-x) v5.3 Climate Data Record (CDR) for top-of-atmosphere (TOA) visible channel reflectances. This paper describes the theoretical basis for the atmospheric correction procedure and its subsequent implementation, including the necessary ancillary data files used and quality flags applied, in order to determine remote sensing reflectance. The resulting dataset is produced at daily, and archived at monthly, resolution, on a 0.1°×0.1° grid at https://doi.pangaea.de/10.1594/PANGAEA.892175. The primary aim of deriving this dataset is to highlight regions of the global ocean affected by highly reflective blooms of the coccolithophorid Emiliania Huxleyi over the past 40 years.

Benjamin R. Loveday and Timothy Smyth
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Status: final response (author comments only)
Status: final response (author comments only)
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Benjamin R. Loveday and Timothy Smyth
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40-year AVHRR record of visible channel Rrs and coccolithophorid blooms B. R. Loveday and T. Smyth https://doi.org/10.1594/PANGAEA.892175

Benjamin R. Loveday and Timothy Smyth
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Short summary
A 40-year data set of ocean reflectance is derived from an atmospherically corrected, climate quality record of top-of-atmosphere signals taken from the satellite-based AVHRR temperature sensor. The data set provides a unique view of visible changes in the global ocean over timescales where climatic effects are demonstrable, and spans coverage gaps left by more traditional satellite ocean colour sensors. It is particularly relevant to monitoring bright plankton blooms, such as coccolithophores.
A 40-year data set of ocean reflectance is derived from an atmospherically corrected, climate...
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