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	Provedor de dados Boletín de Investigaciones (4) Autor Cantera-Kintz,Jaime (1) Cañón Páez,Mary Luz (1) Concha Perdomo,Ana Elena (1) Hernández Duarte,Margorie Alexandra (1) Holland,David M. (1) Mojica,Jhon F. (1) Monroy,Julio (1) Osorno-Arango,Adriana (1) Santamaría del Ángel,Eduardo (1) Villegas Bolaños,Nancy Liliana (1) Mais... Palavra-chave Gerlache Strait (4) Absorption coefficients (1) Antarctic Ocean dynamics (1) Bismarck Strait. (1) Bransfield Strait (1) Climatology (1) Diapycnal mixing (1) Inherent optical properties index (1) Mixing. (1) Mollusca (1) Phytoplankton (1) Sea ice (1) Sea ice cover (1) Size index (1) Southern Ocean. (1) Trends (1) West Antarctica (1) Mais... Tipo do documento Info:eu-repo/semantics/article (4) Ano 2021 (4) País Colombia (4) Idioma Inglês (4)		Ordenar por:  Relevância Autor Título Ano Registros recuperados: 4 Primeira ... 1 ... Última Submeso-scale Mixing Features in the Gerlache Strait Bays (Antarctica) Boletín de Investigaciones Mojica,Jhon F.; Holland,David M.; Monroy,Julio. ABSTRACT Measurements of turbulence in the ocean are sparse, especially in environments such as Antarctica. Here we map the spatial distribution of diapycnal diffusivities and the water column characteristics across the three main bays in the Gerlache Strait on the western side of the Antarctic Peninsula. The measurements were recorded during the Fifth Colombian Antarctic Expedition, 2018-2019, using a Vertical Microstructure Profiler in free fall for the first 400 m depth, to record fluctuations of vertical shear at dissipation scales (10 -3 - 10 3 m). Diapycnal diffusivities are higher by 1-2 orders of magnitude in the Gerlache mainstream compared with the interior bays, with values from O (log 10kρ= -3 m2s-1) to O (log 10kρ= -5 m2s-1) respectively... Tipo: Info:eu-repo/semantics/article Palavras-chave: Sea ice; Antarctic Ocean dynamics; Diapycnal mixing; Gerlache Strait; Mixing.. Ano: 2021 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612021000300041 Identification of phytoplankton blooms in the Gerlache Strait, West Antarctic Peninsula Boletín de Investigaciones Cañón Páez,Mary Luz; Santamaría del Ángel,Eduardo. ABSTRACT In order to identify phytoplankton blooms, the inherent optical properties index (IOPIndex) was used in surface water samples and the maximum chlorophyll-a (MPC) that were taken in the Third (January 2017) and in the Fourth Expedition (January 2018) from Colombia to Antarctica in the Gerlache Strait (EG). The IOPIndex is calculated from the standardized spatial anomalies of the phytoplankton, detritus and colored dissolved organic matter (CDOM) absorption coefficients using wavelength 443. In addition, the phytoplankton size index was calculated using the Blue / Red ratio and this related to the IOPIndex to determine the size structure of the phytoplankton responsible for the blooms. In 2017, four stations were identified under bloom conditions,... Tipo: Info:eu-repo/semantics/article Palavras-chave: Absorption coefficients; Inherent optical properties index; Size index; Gerlache Strait; Phytoplankton. Ano: 2021 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612021000300013 Benthic molluscs collected in Western Antarctica during the “Caldas”, “Admiral Padilla” and “Admiral Campos” expeditions, southern summers 2014-2015, 2016-2017 and 2018-2019 Boletín de Investigaciones Osorno-Arango,Adriana; Cantera-Kintz,Jaime. ABSTRACT This research is part of the results of the three first expeditions of Colombia to West Antarctica and it focused on the systematics and taxonomic diversity of the benthic community of molluscs collected between 5 and 400 m deep. The Sampling sites where mollusks were collected were located along the Gerlache and Bransfield straits, around the Palmer Archipelago and the South Shetland Islands, adjacent to the Antarctic Peninsula. The list of identified species that are deposited in the Museum of Marine Natural History of Colombia - Makuriwa, of the Institute of Marine and Coastal Research “José Benito Vives de Andréis” -Invemar, is presented. This inventory consisted of 15 specimens distributed in 10 taxa, of which 7 were shelled gastropods... Tipo: Info:eu-repo/semantics/article Palavras-chave: Mollusca; West Antarctica; Gerlache Strait; Bransfield Strait; Southern Ocean.. Ano: 2021 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612021000300187 General description of some meteo-marine variables of surface waters adjacent to the Palmer Archipelago, Antarctic Peninsula, during 1979-2018 based on Era5 data Boletín de Investigaciones Hernández Duarte,Margorie Alexandra; Villegas Bolaños,Nancy Liliana; Concha Perdomo,Ana Elena. ABSTRACT Aspatial and temporal description of meteo-marine parameters for 1979-2018 period of the marine region surrounding the Palmer Archipelago, located West of the Antarctic Peninsula (WAP), is presented. The used information was extracted from the ERA5 reanalysis. Air Temperature (Ta), Total Precipitation (TP) and Sea Surface Temperature (SST) showed a general increase over the last 40 years in the study region. The highest increase of Ta, TP and SST values were recorded north of Gerlache Strait, followed by Bismarck Strait. It was evidenced that Sea Ice Cover (SIC) has decreased mostly north of Palmer Archipelago. The existence of a local differentiation of meteo-marine conditions around the Palmer Archipelago was identified. The climatology of five... Tipo: Info:eu-repo/semantics/article Palavras-chave: Climatology; Trends; Sea ice cover; Gerlache Strait; Bismarck Strait.. Ano: 2021 URL: http://www.scielo.org.co/scielo.php?script=sci_arttext&pid=S0122-97612021000100141 Registros recuperados: 4 Primeira ... 1 ... Última

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