Phytoplankton absorption and the chlorophyll a–specific absorption coefficient in dynamic Onondaga Lake

Inland Waters ◽  
2014 ◽  
Vol 4 (2) ◽  
pp. 133-146 ◽  
Author(s):  
MaryGail Perkins ◽  
Steven Effler ◽  
Christopher Strait
Keyword(s):  
Absorption Coefficient ◽  
Chlorophyll A ◽  
Onondaga Lake ◽  
Specific Absorption Coefficient ◽  
Specific Absorption ◽  
Phytoplankton Absorption

scholarly journals CHLOROPHYLL SPECIFIC ABSORPTION COEFFICIENTS AND THE IMPACT OF PHYTOPLANKTON TAXONOMIC GROUP OF SURFACE WATERS IN THE NORTHEASTERN GULF OF MEXICO

2009 ◽  
Vol 1 (1) ◽  
Author(s):  
Bisman Nababan
Keyword(s):  
Gulf Of Mexico ◽  
Absorption Coefficient ◽  
Chlorophyll A ◽  
Mississippi River ◽  
Specific Absorption Coefficient ◽  
Specific Absorption ◽  
Chlorophyll A Concentration ◽  
Average Value ◽  
Northeastern Gulf Of Mexico ◽  
The Impact

<p>The chlorophyll-specific absorption coefficient at 440 nm (a*<br />ph(440)) of surface water in the Northeastern Gulf of Mexico varied by a factor of 7 (0.02-0.15 m2 mg-1) with the of chlorophyll-a concentration of 0.06-12.25 mg m-3. In general, lower values of a*ph(440) (&lt;0.06 m2 mg-1) were observed in the inshore particularly in the major river mouths. During summer, lower values of a*ph(440) were also observed offshore associated with low-salinity waters of the Mississippi River plume. Higher values of a*ph(440) (&gt;0.1 m2 mg-1) were otherwise observed outside the river plumes in the outer<br />shelf and slope, where lower chlorophyll-a concentration occurred. Based on phytoplankton taxonomic groups, the average value of a*ph(440), of microphytoplankton group was significantly lower than that of nanophytoplankton and picophytoplantkon groups, suggesting that an increase in cell optical size (pigment packaging) resulted in decreasing a*<br />ph(440) values. The relationship between a*ph(440) and chlorophyll-a concentration was also not linear, indicating pigment composition played an important role in determining a*ph(440) variability.</p><p>Keywords: chlorophyll-specific absorption coefficient, microphytoplankton, nanophytoplankton,<br />picophytoplankton, Gulf of Mexico, pigment, packaging effect</p>

scholarly journals CHLOROPHYLL SPECIFIC ABSORPTION COEFFICIENTS AND THE IMPACT OF PHYTOPLANKTON TAXONOMIC GROUP OF SURFACE WATERS IN THE NORTHEASTERN GULF OF MEXICO

2009 ◽  
Vol 1 (1) ◽  
Author(s):  
Bisman Nababan
Keyword(s):  
Gulf Of Mexico ◽  
Absorption Coefficient ◽  
Chlorophyll A ◽  
Mississippi River ◽  
Specific Absorption Coefficient ◽  
Specific Absorption ◽  
Chlorophyll A Concentration ◽  
Average Value ◽  
Northeastern Gulf Of Mexico ◽  
The Impact

The chlorophyll-specific absorption coefficient at 440 nm (a*ph(440)) of surface water in the Northeastern Gulf of Mexico varied by a factor of 7 (0.02-0.15 m2 mg-1) with the of chlorophyll-a concentration of 0.06-12.25 mg m-3. In general, lower values of a*ph(440) (<0.06 m2 mg-1) were observed in the inshore particularly in the major river mouths. During summer, lower values of a*ph(440) were also observed offshore associated with low-salinity waters of the Mississippi River plume. Higher values of a*ph(440) (>0.1 m2 mg-1) were otherwise observed outside the river plumes in the outershelf and slope, where lower chlorophyll-a concentration occurred. Based on phytoplankton taxonomic groups, the average value of a*ph(440), of microphytoplankton group was significantly lower than that of nanophytoplankton and picophytoplantkon groups, suggesting that an increase in cell optical size (pigment packaging) resulted in decreasing a*ph(440) values. The relationship between a*ph(440) and chlorophyll-a concentration was also not linear, indicating pigment composition played an important role in determining a*ph(440) variability.Keywords: chlorophyll-specific absorption coefficient, microphytoplankton, nanophytoplankton,picophytoplankton, Gulf of Mexico, pigment, packaging effect

Specific absorption coefficient of copper in (TeO2)0.80(MoO3)0.20 glass

2015 ◽  
Vol 51 (12) ◽  
pp. 1283-1287 ◽  
Author(s):  
O. A. Zamyatin ◽  
M. F. Churbanov ◽  
V. G. Plotnichenko ◽  
A. A. Sibirkin ◽  
I. G. Fedotova ◽  
...  
Keyword(s):  
Absorption Coefficient ◽  
Specific Absorption Coefficient ◽  
Specific Absorption
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