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
Data
1 Event | 2 Latitude | 3 Longitude | 4 Date/Time | 5 PP C [mg/m3/day] (in the surface layer, 14C in-...) | 6 PP C area [g/m2/day] (in the water column, 14C in-s...) | 7 Chl a [µg/l] (in the surface layer, Spectro...) | 8 Chl a [µg/l] (average for the photosynhetic...) | 9 Chl a [µg/l] (average for 0-100 m layer, Sp...) | 10 Assim r C/Chl a [mg/mg/h] (maximum in the water column, ...) | 11 Assim r C/Chl a [mg/mg/h] (average for the photosynhetic...) | 12 TPhl [m] | 13 z(SD) [m] (Secchi disc) | 14 z(eu) [m] (Transmissometer) | 15 Temp [°C] (surface, CTD, Neil Brown) | 16 Sal (surface, CTD, Neil Brown) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
AMK36-3484 | 73.700 | 13.267 | 1995-07-04 | 46.7 | 0.539 | 0.78 | 0.97 | 0.59 | 2.50 | 0.58 | 40 | 8 | 37 | 6.85 | 35.15 |
AMK36-3492 | 73.700 | 13.267 | 1995-07-06 | 29.8 | 0.448 | 0.47 | 0.52 | 0.31 | 2.65 | 0.72 | 50 | 10 | 46 | 7.01 | 35.13 |
AMK36-3504 | 73.700 | 13.267 | 1995-07-08 | 24.1 | 0.445 | 0.34 | 0.34 | 0.24 | 2.91 | 1.09 | 50 | 10 | 46 | 7.33 | 35.09 |
AMK36-3553 | 73.700 | 13.267 | 1995-07-16 | 15.6 | 0.476 | 0.24 | 0.28 | 0.19 | 2.67 | 1.20 | 60 | 12 | 55 | 7.67 | 34.90 |
AMK36-3561 | 73.700 | 13.267 | 1995-07-18 | 22.5 | 0.515 | 0.29 | 0.34 | 0.26 | 3.28 | 1.04 | 60 | 12 | 55 | 7.54 | 34.94 |