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Data sources and acknowledgements
WOD05Much of the data were obtained from the World Ocean Database '05 (WOD05; Boyer et al. 2006). The data were downloaded from http://www.nodc.noaa.gov/OC5/WOD05/pr_wod05.html.
GTSPPFrom 1990 the WOD05 data are supplemented with profiles collected by the Global Temperature and Salinity Profile Project (GTSPP; Operational Oceanography Group: Global Temperature-Salinity Profile Program. June 2006. U.S. Department of Commerce, National Oceanic and Atmospheric Administration, National Oceanographic Data Center, Silver Spring, Maryland, 20910. May 2009 onwards, http://www.nodc.noaa.gov/GTSPP/).
ArgoFrom 1999 Argo data downloaded from the global data assembly centres (Coriolis or USGODAE) are used. Argo data were collected and made freely available by the International Argo Project and the national initiatives that contribute to it (http://www.argo.net). Argo is a pilot programme of the Global Ocean Observing System.
ASBO dataAdditional Arctic data spanning from 1950 to the current decade were included in EN3_v2a. The data were collated as part of the Arctic Synoptic Basin-wide Observations (ASBO) project by Takamasa Tsubouchi at NOCS (see the NOCS ASBO webpages). This dataset is a collection of profiles from other sources. These are:
Other acknowledgementsThe dataset makes use of the results of quality control procedures that use altimeter data developed by Stephanie Guinehut, who also provided advice on the interpretation of the results. The quality control results were obtained from ftp://ftp.ifremer.fr/ifremer/argo/etc/argo-ast9-item13-AltimeterComparison/. The technique is described in Guinehut et al. (2009).
IntroductionThis page contains the data sources and acknowledgements for EN3_v2a. Data were downloaded during May/June 2009. Updates are then produced each month using new data obtained from GTSPP and Argo.
ReferencesT.P. Boyer, J.I. Antonov, H.E. Garcia, D.R. Johnson, R.A. Locarnini, A.V. Mishonov, M.T. Pitcher, O.K. Baranova, and I.V. Smolyar, 2006. World Ocean Database 2005. S. Levitus, Ed., NODC Atlas NESDIS 60, U.S. Government Printing Office, Wash., D.C., 190 pp., DVDs
Curry, R., 2001, HydroBase 2 - A database of hydrographic profiles and tools for climatological analysis. Technical reference.
Guinehut, S., C. Coatanoan, A.-L. Dhomps, P.-Y. Le Traon and G. Larnicol, 2009. On the use of satellite altimeter data in Argo quality control, Journal of Atmospheric and Oceanic Technology, 26, 395-402, DOI: 10.1175/2008JTECHO648.1
Swift, J. compiler. 2002. Physical and chemical properties from selected expeditions in the Arctic Ocean. Edited by R. Dichtl, Y. Axford, and T. Haran. Boulder, CO: National Snow and Ice Data Center. Digital media.
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