Satellite observations of phytoplankton variability during an upwelling event

A mesoscale eddy dipole in the offshore California Current

“…The observations, however, are shedding might also explain the recurrent nature of the anti-consistent with the expected dynamical behavior of a classical cyclonic eddies observed, both in satellite images [Abbott and hydrodynamic asymmetric dipole [Fujiwara, 1922]. Zion, 1985] and in CalCOFI data, at these locations. The Sitka eddy is also a recurrent anticyclonic eddy whose cere contains continental slope water [Tahara, 1982], and it may be generated by the same type of mechanism [Swaters and Mysak, 1985].…”

A mesoscale eddy dipole in the offshore California Current

“…The observations, however, are shedding might also explain the recurrent nature of the anti-consistent with the expected dynamical behavior of a classical cyclonic eddies observed, both in satellite images [Abbott and hydrodynamic asymmetric dipole [Fujiwara, 1922]. Zion, 1985] and in CalCOFI data, at these locations. The Sitka eddy is also a recurrent anticyclonic eddy whose cere contains continental slope water [Tahara, 1982], and it may be generated by the same type of mechanism [Swaters and Mysak, 1985].…”

Observations of phytoplankton and nutrients from a Lagrangian drifter off northern California

“…There is strong evidence for subduction from other CTZ data sets (D. Kadko and T. Cowles, personal communication, 1989). Satellite imagery from 1981 of phytoplankton pigment and SST suggest that the offshore end of filaments is characterized by relatively high SST and high pigment off northern California [Abbott and Zion, 1985]. As the effective measurement depth of the coastal zone color scanner is larger than the SST measurement (several meters to a few tens of meters versus the upper few microns), this observation is consistent with the scenario that the cold, high pigment water subducts underneath warmer, low pigment water.…”

“…Hood et al [1990] the significant decrease in total volume in the last sample on day collected a sample from this region a few days before the drifter 173. deployment. Their (in collaboration with E. Venrick) scanning The composition of the phytoplankton community is shown electron micrograph results showed that the centric diatoms were in Figure 12 .................................. Large centric diatoms .............................................. [Kelly, 1985;Simpson, 1985; surface (Figure 2), suggesting that the large-scale changes may be Abbott and Zion, 1985]. Given that the winds were only moderate due to in situ processes.…”

Spatial and temporal variability of phytoplankton pigment off northern California during Coastal Ocean Dynamics Experiment 1

“…This warm, salty, high-pigment "pool" of water occasionally moved northward during wind relaxations.The high-pigment area between Cape Mendocino and PointArena was less dramatic than the one off San Francisco. Although it did not show up in the mean SST image presented by Kelly, a narrow strip of warm water was occasionally present in this nearshore area[Abbott and Zion, 1985]. Although there were no direct wind measurements to confirm this, this area probably had weaker winds than the CODE area, a view supported by the increased cloudiness.…”

A mesoscale eddy dipole in the offshore California Current

“…The observations, however, are shedding might also explain the recurrent nature of the anti-consistent with the expected dynamical behavior of a classical cyclonic eddies observed, both in satellite images [Abbott and hydrodynamic asymmetric dipole [Fujiwara, 1922]. Zion, 1985] and in CalCOFI data, at these locations. The Sitka eddy is also a recurrent anticyclonic eddy whose cere contains continental slope water [Tahara, 1982], and it may be generated by the same type of mechanism [Swaters and Mysak, 1985].…”

Observations of phytoplankton and nutrients from a Lagrangian drifter off northern California

“…There is strong evidence for subduction from other CTZ data sets (D. Kadko and T. Cowles, personal communication, 1989). Satellite imagery from 1981 of phytoplankton pigment and SST suggest that the offshore end of filaments is characterized by relatively high SST and high pigment off northern California [Abbott and Zion, 1985]. As the effective measurement depth of the coastal zone color scanner is larger than the SST measurement (several meters to a few tens of meters versus the upper few microns), this observation is consistent with the scenario that the cold, high pigment water subducts underneath warmer, low pigment water.…”

“…Hood et al [1990] the significant decrease in total volume in the last sample on day collected a sample from this region a few days before the drifter 173. deployment. Their (in collaboration with E. Venrick) scanning The composition of the phytoplankton community is shown electron micrograph results showed that the centric diatoms were in Figure 12 .................................. Large centric diatoms .............................................. [Kelly, 1985;Simpson, 1985; surface (Figure 2), suggesting that the large-scale changes may be Abbott and Zion, 1985]. Given that the winds were only moderate due to in situ processes.…”

Spatial and temporal variability of phytoplankton pigment off northern California during Coastal Ocean Dynamics Experiment 1

“…This warm, salty, high-pigment "pool" of water occasionally moved northward during wind relaxations.The high-pigment area between Cape Mendocino and PointArena was less dramatic than the one off San Francisco. Although it did not show up in the mean SST image presented by Kelly, a narrow strip of warm water was occasionally present in this nearshore area[Abbott and Zion, 1985]. Although there were no direct wind measurements to confirm this, this area probably had weaker winds than the CODE area, a view supported by the increased cloudiness.…”

A mesoscale eddy dipole in the offshore California Current

“…The observations, however, are shedding might also explain the recurrent nature of the anti-consistent with the expected dynamical behavior of a classical cyclonic eddies observed, both in satellite images [Abbott and hydrodynamic asymmetric dipole [Fujiwara, 1922]. Zion, 1985] and in CalCOFI data, at these locations. The Sitka eddy is also a recurrent anticyclonic eddy whose cere contains continental slope water [Tahara, 1982], and it may be generated by the same type of mechanism [Swaters and Mysak, 1985].…”

Observations of phytoplankton and nutrients from a Lagrangian drifter off northern California

“…There is strong evidence for subduction from other CTZ data sets (D. Kadko and T. Cowles, personal communication, 1989). Satellite imagery from 1981 of phytoplankton pigment and SST suggest that the offshore end of filaments is characterized by relatively high SST and high pigment off northern California [Abbott and Zion, 1985]. As the effective measurement depth of the coastal zone color scanner is larger than the SST measurement (several meters to a few tens of meters versus the upper few microns), this observation is consistent with the scenario that the cold, high pigment water subducts underneath warmer, low pigment water.…”

“…Hood et al [1990] the significant decrease in total volume in the last sample on day collected a sample from this region a few days before the drifter 173. deployment. Their (in collaboration with E. Venrick) scanning The composition of the phytoplankton community is shown electron micrograph results showed that the centric diatoms were in Figure 12 .................................. Large centric diatoms .............................................. [Kelly, 1985;Simpson, 1985; surface (Figure 2), suggesting that the large-scale changes may be Abbott and Zion, 1985]. Given that the winds were only moderate due to in situ processes.…”

Spatial and temporal variability of phytoplankton pigment off northern California during Coastal Ocean Dynamics Experiment 1

“…This warm, salty, high-pigment "pool" of water occasionally moved northward during wind relaxations.The high-pigment area between Cape Mendocino and PointArena was less dramatic than the one off San Francisco. Although it did not show up in the mean SST image presented by Kelly, a narrow strip of warm water was occasionally present in this nearshore area[Abbott and Zion, 1985]. Although there were no direct wind measurements to confirm this, this area probably had weaker winds than the CODE area, a view supported by the increased cloudiness.…”