Database for time-series stations K2 and S1

Time-series satellite data at stations K2 and S1 include chlorophyll a (Chl-a) concentrations, sea surface temperature (SST), Photosynthetically available radiation (PAR), aerosol optical thickness, angstrom coefficient and primary productivity. Values measured by satellites at stations K2 and S1 are based on an areal average over an 11 x 11 pixel (approximately 100 x 100 km) square box.
We plan to update these data from time to time. Each parameter is available as one MS Excel file.

• Values measured at stations K2 and S1 are areal averages over an 11 x 11 (NGSST data = 21 x 21) pixel (approximately 100 x 100 km) square box. The following information explains the data in the indicated columns:
• 1. Date: Observation date (yyyy/mm/dd)
• 2. Number of all samples: Total number of samples within a square box (in the case of an 11 x 11 pixel square box, this value is 121.).
• 3. Available samples: Same as ‘Number of all samples’, except in cases when the number of all samples was reduced by missing data because of effects such as cloud cover.
• 4. Mean: Mean value calculated from available samples.
• 5. STD: Standard deviation calculated from available samples.

• Behrenfeld, M. J. and P. G. Falkowski (1997): Photosynthetic rates derived from satellite-based chlorophyll concentration. Limnol. Oceanogr., 42, 1–20.
• Kameda, T. and J. Ishizaka (2005): Size-Fractionated primary production estimated by a two-phytoplankton community model applicable to ocean color remote sensing. J. Oceanogr., 61, 663-672.