Vedernikov, Vladimir I; Demidov, A B (1997): (Table 1) Results of measurements of production characteristics of phytoplankton and some physical parameters of the environment in the northeastern Norwegian Sea in July 1995 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.760106, Supplement to: Vedernikov, VI; Demidov, AB (1997): Primary production and chlorophyll in the northeastern Norwegian Sea in July 1995. Translated from Okeanologiya, 1997, 37(2), 250-256, Oceanology, 37(2), 227-232
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Abstract:
From July 4 to 18,1995 surface chlorophyll a concentrations (C_cs) and integral primary production (C_ps) were studied in the northeastern part of the Norwegian Sea (73°42'N; 13°16'E), over a test area where an accident of the nuclear submarine Komsomolets had taken place. It was found that during this interval C_cs decreased by factor of about 3.3 (from 0.78 to 0.24 mg/m**3); average chlorophyll concentration within the photo-synthetic layer (C_cl) decreased by factor of about 3.5 (from 0.97 to 0.28 mg/m**3). The value of C_ps in the water column varied slightly (from 445 to 539 mg C/m**2 per day), since decrease in C_cl was compensated both by 1.5-fold growth of the photosynthetic layer thickness (from 40 to 60 m) and by 2.1-fold increase in its average assimilation number (from 0.58 to 1.20 mg C/mg chl a per hour). Monthly averages of C_ps were obtained from published data on seasonal C_cs changes and on the level of incident solar irradiation. They were found to be less than 100 mg C/m**2 per day in March and October and 100-500 mg C/m**2 per day in April-June. Annual primary production calculated from above values was equal to 105 g C/m**2.
Project(s):
Archive of Ocean Data (ARCOD)
Coverage:
Latitude: 73.700000 * Longitude: 13.266667
Date/Time Start: 1995-07-04T00:00:00 * Date/Time End: 1995-07-18T00:00:00
Event(s):
AMK36-3484 * Latitude: 73.700000 * Longitude: 13.266667 * Date/Time: 1995-07-04T00:00:00 * Location: Norwegian Sea * Campaign: AMK36 * Basis: Akademik Mstislav Keldysh * Method/Device: Multiple investigations (MULT)
AMK36-3492 * Latitude: 73.700000 * Longitude: 13.266667 * Date/Time: 1995-07-06T00:00:00 * Location: Norwegian Sea * Campaign: AMK36 * Basis: Akademik Mstislav Keldysh * Method/Device: Multiple investigations (MULT)
AMK36-3504 * Latitude: 73.700000 * Longitude: 13.266667 * Date/Time: 1995-07-08T00:00:00 * Location: Norwegian Sea * Campaign: AMK36 * Basis: Akademik Mstislav Keldysh * Method/Device: Multiple investigations (MULT)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | ||||
| 2 | Latitude of event | Latitude | ||||
| 3 | Longitude of event | Longitude | ||||
| 4 | Date/Time of event | Date/Time | ||||
| 5 | Primary production of carbon | PP C | mg/m3/day | Vedernikov, Vladimir I | 14C in-situ incubation | in the surface layer |
| 6 | Primary production of carbon per area, daily | PP C area | g/m2/day | Vedernikov, Vladimir I | 14C in-situ incubation | in the water column |
| 7 | Chlorophyll a | Chl a | µg/l | Vedernikov, Vladimir I | Spectrophotometry | in the surface layer |
| 8 | Chlorophyll a | Chl a | µg/l | Vedernikov, Vladimir I | Spectrophotometry | average for the photosynhetic layer |
| 9 | Chlorophyll a | Chl a | µg/l | Vedernikov, Vladimir I | Spectrophotometry | average for 0-100 m layer |
| 10 | Assimilation rate of carbon per chlorophyll a | Assim r C/Chl a | mg/mg/h | Vedernikov, Vladimir I | Calculated | maximum in the water column |
| 11 | Assimilation rate of carbon per chlorophyll a | Assim r C/Chl a | mg/mg/h | Vedernikov, Vladimir I | Calculated | average for the photosynhetic layer |
| 12 | Photosynthesis layer, thickness | TPhl | m | Vedernikov, Vladimir I | ||
| 13 | Depth of Secchi Disk | z(SD) | m | Vedernikov, Vladimir I | Secchi disc | |
| 14 | Depth of the euphotic zone | z(eu) | m | Vedernikov, Vladimir I | Transmissometer | |
| 15 | Temperature, water | Temp | °C | Vedernikov, Vladimir I | CTD, Neil Brown | surface |
| 16 | Salinity | Sal | Vedernikov, Vladimir I | CTD, Neil Brown | surface |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
60 data points