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Validating satellite derived and modelled sea-ice drift in the Laptev Sea with in situ measurements from the winter of 2007/08 ArchiMer
Rozman, Polona; Hölemann, Jens A.; Krumpen, Thomas; Gerdes, Rüdiger; Köberle, Cornelia; Lavergne, Thomas; Adams, Susanne; Girard-ardhuin, Fanny.
A correct representation of the ice movement in an Arctic sea-ice-ocean coupled model is essential for a realistic sea-ice and ocean simulation. The aim of this study is to validate the observational and simulated sea-ice drift for the Laptev Sea Shelf region with in situ measurements from the winter of 2007/08. Several satellite remote-sensing data sets are first compared to mooring measurements and afterwards to the sea-ice drift simulated by the coupled sea-ice-ocean model. The different satellite products have a correlation to the in situ data ranging from 0.56 to 0.86. The correlations of sea-ice direction or individual drift vector components between the in situ data and the observations are high, about 0.8. Similar correlations are achieved by the...
Tipo: Text Palavras-chave: Shelf seas; Sea-ice drift; Sea-ice ocean coupled model; Acoustic Doppler current profiler; Fast ice.
Ano: 2011 URL: http://archimer.ifremer.fr/doc/00049/15983/13426.pdf
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Global expressions for seasonal temperatures of the sea surface and ambient air - The influence of tidal currents and water depth ArchiMer
Prandle, D.
A 'single point' coupled ocean-atmosphere model is formulated to study seasonal temperature cycles with particular application to shelf seas. The simplified atmospheric module is consistent with the physical processes described by Gill [4] while the vertical exchange of heat in the ocean module is determined via a turbulence closure model. The various empirical coefficients in the atmospheric module were determined by fitting the model output to North Atlantic observational data over the latitude range 0 degrees to 65 degrees N. The model is then applied to the shallow, strongly tidal North Sea. The general validity of the model is demonstrated, thereby indicating that the seasonal cycles of the sea surface, T-s, and ambient air, T-a, are generally...
Tipo: Text Palavras-chave: Température; Cycle annuel; Couplage océan-atmosphère; Mer bordière; Mer du Nord; Temperature; Annual cycle; Atmosphere-ocean coupling; Shelf seas; North Sea.
Ano: 1998 URL: http://archimer.ifremer.fr/doc/00325/43665/43205.pdf
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Variación espacio-temporal de la turbidez y calidad en cuerpos de agua marina de uso pesquero, región norcentral de Cuba, 2008-2010 OceanDocs
Betanzos Vega, A.; Capetillo Piñar, N.; Lopeztegui Castillo, A.; Martínez Daranas, B..
A partir de cinco cruceros de investigación realizados en el periodo 2008 – 2010, en dos bahías semicerradas (Buena Vista y San Juan de los Remedios), de la región norcentral de Cuba, se analizó la variabilidad espacio-temporal de la turbidez del agua y su relación con la temperatura, salinidad, concentración y saturación de oxígeno disuelto, pH, transparencia, color, sólidos suspendidos y totales, demanda química de oxigeno (DQO) y la intensidad del viento in situ. Se evaluó la calidad de las aguas por el índice del estado trófico, y de la comparación y relación transparencia vs. turbidez se obtuvieron ntervalos de turbidez (FTU) que se utilizaron como indicador de la calidad de los cuerpos de aguas estudiados. La turbidez presentó...
Tipo: Journal Contribution Palavras-chave: Turbidity; Quality; Bays; Shelf seas.
Ano: 2013 URL: http://hdl.handle.net/1834/5383
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