MODIS Daily Mean Photosynthetically Available Radiation
Overview
This algorithm estimates daily average photosynthetically available radiation (PAR) at the ocean surface in Einstein m-2 d-1. PAR is defined as the quantum energy flux from the Sun in the 400-700nm range. For ocean color applications, PAR is a common input used in modeling marine primary productivity. Implementation of this algorithm is contingent on the availability of observed top-of-atmosphere radiances in the visible spectral regime that do not saturate over clouds. The algorithm is applicable to MODIS, MERIS, SeaWiFS, and VIIRS, but it can be operated on all ocean color sensors. The PAR product is included as part of the standard Level-2 OC product suite and the Level-3 PAR product suite.
Product Information
• Validated Stage: Stage 1
• Algorithm Point of Contact: Robert Frouin, Scripps Institute of Oceanography
• DOI:
Terra
NASA Goddard Space Flight Center, Ocean Ecology Laboratory, Ocean Biology Processing Group; (2014): MODIS-Terra Ocean Color Data; NASA Goddard Space Flight Center, Ocean Ecology Laboratory, Ocean Biology Processing Group. http://dx.doi.org/10.5067/TERRA/MODIS_OC.2014.0
Accessed on 07/28/2015.
Aqua
NASA Goddard Space Flight Center, Ocean Ecology Laboratory, Ocean Biology Processing Group; (2014): MODIS-Aqua Ocean Color Data; NASA Goddard Space Flight Center, Ocean Ecology Laboratory, Ocean Biology Processing Group. http://dx.doi.org/10.5067/AQUA/MODIS_OC.2014.0
Accessed on 07/28/2015.
Product Details
All of the MODIS Daily Mean Photosynthetically Available Radiation Level 3 data can be found at http://oceancolor.gsfc.nasa.gov/l3.
