Schloss, Irene R; Wasilowska, Agnieszka; Dumont, Dany; Almandoz, Gastón Osvaldo; Hernando, M P; Michaud-Tremblay, C-A; Saravia, L; Rzepecki, Marek; Monien, Patrick; Monien, Donata; Kopczynska, E E; Bers, A Valeria; Ferreyra, Gustavo A (2014): (Table 1) Characteristics of air temperature, sea surface temperature, sea surface salinity, nutrients, and total particulate matter for Admiralty Bay and Potter Cove, King George Island, Antarctica [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.854856, Supplement to: Schloss, IR et al. (2014): On the phytoplankton bloom in coastal waters of southern King George Island (Antarctica) in January 2010: An exceptional feature? Limnology and Oceanography, 59(1), 195-210, https://doi.org/10.4319/lo.2014.59.1.0195
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Abstract:
Since the early 1990s, phytoplankton has been studied and monitored in Potter Cove (PC) and Admiralty Bay (AB), King George/25 de Mayo Island (KGI), South Shetlands. Phytoplankton biomass is typically low compared to other Antarctic shelf environments, with average spring - summer values below 1 mg chlorophyll a (Chl a)/m**3. The physical conditions in the area (reduced irradiance induced by particles originated from the land, intense winds) limit the coastal productivity at KGI, as a result of shallow Sverdrup's critical depths (Zc) and large turbulent mixing depths (Zt). In January 2010 a large phytoplankton bloom with a maximum of around 20 mg Chl a/m**3, and monthly averages of 4 (PC) and 6 (AB) mg Chl a/m**3, was observed in the area, making it by far the largest recorded bloom over the last 20 yr. Dominant phytoplankton species were the typical bloom-forming diatoms that are usually found in the western Antarctic Peninsula area. Anomalously cold air temperature and dominant winds from the eastern sector seem to explain adequate light : mixing environment. Local physical conditions were analyzed by means of the relationship between Zc and Zt, and conditions were found adequate for allowing phytoplankton development. However, a multiyear analysis indicates that these conditions may be necessary but not sufficient to guarantee phytoplankton accumulation. The relation between maximum Chl a values and air temperature suggests that bottom-up control would render such large blooms even less frequent in KGI under the warmer climate expected in the area during the second half of the present century.
Project(s):
Funding:
German Research Foundation (DFG), grant/award no. 5472008: Priority Programme 1158 Antarctic Research with Comparable Investigations in Arctic Sea Ice Areas
Coverage:
Median Latitude: -62.191165 * Median Longitude: -58.548330 * South-bound Latitude: -62.233330 * West-bound Longitude: -58.666660 * North-bound Latitude: -62.149000 * East-bound Longitude: -58.430000
Date/Time Start: 2001-01-15T00:00:00 * Date/Time End: 2011-01-15T00:00:00
Minimum Elevation: -35.0 m * Maximum Elevation: -35.0 m
Event(s):
Admiralty_Bay * Latitude: -62.149000 * Longitude: -58.430000 * Location: King George Island, Antarctic Peninsula * Method/Device: Multiple investigations (MULT)
PotterCove * Latitude: -62.233330 * Longitude: -58.666660 * Elevation: -35.0 m * Location: Potter Cove, King George Island, Antarctic Peninsula * Campaign: Jubany_Dallmann * Basis: Carlini/Jubany Station * Method/Device: Multiple investigations (MULT)
Comment:
For Potter Cove, data from three of the 3 yr representing contrasting conditions after the formalization of the conceptual model are presented. Nutrients for year 2010 in Potter Cove correspond to the week after the blooming period.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Schloss, Irene R | |||
| 2 | DATE/TIME | Date/Time | Schloss, Irene R | Geocode | ||
| 3 | Date/time start | Date/time start | Schloss, Irene R | |||
| 4 | Date/time end | Date/time end | Schloss, Irene R | |||
| 5 | Temperature, air | TTT | °C | Schloss, Irene R | ||
| 6 | Temperature, air, standard deviation | TTT std dev | ± | Schloss, Irene R | ||
| 7 | Temperature, air, maximum | TxTxTx | °C | Schloss, Irene R | ||
| 8 | Temperature, air, minimum | TnTnTn | °C | Schloss, Irene R | ||
| 9 | Temperature, water | Temp | °C | Schloss, Irene R | at sea surface | |
| 10 | Temperature, water, standard deviation | Temp std dev | ± | Schloss, Irene R | ||
| 11 | Salinity | Sal | Schloss, Irene R | at sea surface | ||
| 12 | Salinity, standard deviation | Sal std dev | ± | Schloss, Irene R | ||
| 13 | Nitrate | [NO3]- | µmol/l | Schloss, Irene R | ||
| 14 | Nitrate, standard deviation | NO3 std dev | ± | Schloss, Irene R | ||
| 15 | Phosphate | [PO4]3- | µmol/l | Schloss, Irene R | ||
| 16 | Phosphate, standard deviation | [PO4]3- std dev | ± | Schloss, Irene R | ||
| 17 | Total particulate matter | TPM | mg/l | Schloss, Irene R | ||
| 18 | Standard deviation | Std dev | ± | Schloss, Irene R | TPM |
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
58 data points