Photosynthetic characteristics of sinking microalgae under the sea ice
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Keywords
Chl a specific light absorption coefficient (āph*)
Ek-independent variability
Initial slope (αB)
Maximum photosynthetic rate (PmB)
Particle interceptor trap
Abbreviations
aph*(λ)
absorption of phytoplankton chlorophyll a at wavelength (λ) in m2 mg Chl a−1
āph*
mean Chl a specific absorption coefficient of PAR in m2 mg Chl a−1
αB
Chl a specific initial slope of photosynthesis versus irradiance curve in mg C [mg Chl a ]−1 h−1 [μmol photons m−2 s−1]−1
βB
photo-inhibition parameters in mg C [mg Chl a]−1 h−1 [μmol photons m−2 s−1]−1
Chl a
chlorophyll a in mg Chl a m−3
d
distance from the top of the ice to the top of the algal layer (m)
Ek
light adaptation index in μmol photons m−2 s−1
E(λ)
irradiance at a given wavelength λ in μmol photons m−2 s−1
kice
extinction coefficient of sea ice in m−1
P − E
photosynthetic rate versus irradiance
PmaxB
Chl a specific maximum photosynthetic rate in mg C (mg Chl a)−1 h−1
PsatB
Chl a specific saturated photosynthetic rate in mg C (mg Chl a)−1 h−1
PARair
photosynthetically available radiation in air in μmol photons m−2 s−1
PARalgae
photosynthetically available radiation above ice algal layer in μmol photons m−2 s−1
PARice
photosynthetically available radiation above sea ice in μmol photons m−2 s−1
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