Chlorophyll biomass in the global oceans: satellite retrieval using inherent optical properties.
In the upper layer of the global ocean, 2082 in situ chlorophyll biomass values (Chl) are retrieved by concurrent satellite-derived inherent optical properties (IOP). It is found that (1) the phytoplankton absorption coefficient IOP alone does not provide satisfactory (Chl) retrieval; (2) the chromophoric dissolved organic matter (CDOM) absorption coefficient IOP must also be used to obtain satisfactory retrieval through (Chl) alpha a ph + pa CDOM where p is a constant and a ph and aCDOM are, respectively, the phytoplankton and CDOM absorption coefficients; (3) the IOP-based (Chl) retrieval performance is comparable to standard satellite reflectance ratio retrievals (that have CDOM absorption intrinsically embedded within them); (4) inclusion of the total backscattering coefficient IOP does not contribute significantly to (Chl) retrieval; and (5) the new IOP-based algorithm may provide the possibility for future research to establish the actual role of extracellular CDOM from all sources in the intracellular production of chlorophyll biomass.
Lyon
Paul E
PE
Wallops Flight Facility, Wallops Island, Virginia 23337, USA.
Hoge
Frank E
FE
Wright
C Wayne
CW
Swift
Robert N
RN
Yungel
James K
JK
D000465:Algorithms; D018533:Biomass; D002734:Chlorophyll / Q000032:analysis*; D004784:Environmental Monitoring / Q000379:methods*; D009792:Oceans and Seas; D010839:Phytoplankton / Q000302:isolation & purification / Q000378:metabolism*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D018531:Spacecraft; D013057:Spectrum Analysis / Q000379:methods*; D014871:Water Microbiology; D014876:Water Pollution / Q000032:analysis*
D002734:Chlorophyll