Title

Global Ocean Climatology - Density Climatology

Alternate title

SDC_GLO_CLIM_Dens

Date (Creation)

2020-11-04

Edition

1.0

Citation identifier

725d02ed-2c93-44e8-a1ac-48a9cd5ac883

Abstract

The SDC_GLO_CLIM_Dens product contains global monthly climatological estimates of in situ density using Temperature and Salinity from profiling floats contained in the World Ocean Data 18 (WOD18) database. The profiles were first quality controlled with a Nonlinear Quality control procedure. The climatology considers observations from surface to 2000 m for the time period 2003-2017. Density profiles are computed using UNESCO 1983 (EOS 80) equation from in situ temperature, salinity and pressure measurements by the PFL. Only profiles with both T,S values were used.

The gridded fields are computed using DIVAnd (Data Interpolating Variational Analysis) version 2.3.1.

Credit

SeaDataNet

Point of contact

Organisation name	Individual name	Electronic mail address	Role
University of Bologna, Department of Physics and Astronomy (DIFA)		kanwal.shahzadi3@unibo.it	Production Unit
IFREMER / IDM / SISMER - Scientific Information Systems for the SEA		sismer@ifremer.fr	Production center
University of Bologna, Department of Physics and Astronomy (DIFA)	Kanwal Shahzadi	kanwal.shahzadi3@unibo.it	Author
University of Bologna, Department of Physics and Astronomy (DIFA)	Nadia Pinardi	nadia.pinardi@unibo.it	Author
NOAA / Wdc For Oceanography		wdca@nodc.noaa.gov	Product manager

Thèmes Sextant

• /Physical Environment/Hydrodynamics/Water Column

GEMET - INSPIRE themes, version 1.0

• Oceanographic geographical features

Parameter Discovery Vocabulary (P02)

• Density of the water column

SeaVoX salt and fresh water body gazetteer

• Atlantic Ocean
• Southern Ocean
• Indian Ocean
• Arctic Ocean
• Pacific Ocean

Use limitation

SeaDataNet Usage Agreement: If you use SeaDataNet data in your publications please include the following in the Acknowledgements: Data were provided through SeaDataNet Pan-European infrastructure for ocean and marine data management (https://www.seadatanet.org)

Access constraints

Other restrictions

Use constraints

Other restrictions

Other legal constraints

No limitations on public access. For data access please register at http://www.marine-id.org

Spatial representation type

Grid

Distance

0.25  degree  degree

Distance

0.25  degree  degree

Language

eng

Topic category

• Oceans

Description

bounding box

Begin date

2003-01

End date

2017-12

Reference system identifier

EPSG / WGS 84 (EPSG:4326)

Number of dimensions

1

Dimension name

Time

Resolution

1  month  month

Cell geometry

Area

Transformation parameter availability

Distribution format

Name	Version
Climate and Forecast NetCDF	1.0

OnLine resource

Protocol	Linkage	Name
WWW:LINK-1.0-http--link	http://dx.doi.org/10.12770/725d02ed-2c93-44e8-a1ac-48a9cd5ac883
WWW:DOWNLOAD-1.0-link--download	https://files.seadatanet.org/climatologies/Global_Ocean/SDC_GLO_CLIM_TS_V2/UNIBO_GLOBAL_Dens_Climatologies/	UNIBO_GLOBAL_Dens_Climatologies

Hierarchy level

Series

Statement

In this product, first the basic WOD quality flags (QF) has been considered. There are three types of QFs in the WOD:

1-Orginator Flag (Oflag)

2-World Ocean database observed value flag (WODf)

3-World Ocean database profile flag (WODpf)

In this analysis, only the observations with WODf flags value “0” (Accepted) and WODpf flag value “0” (Accepted) have been used.

An additional quality control, a nonlinear quality control developed by Shahzadi (2020) has been implemented with the following assumptions:

1- The domain is divided into 5x5 degree boxes, where mean and standard deviations(std) are computed.

2- Data is eliminated outside 2 std in each box and procedure is repeated.

Metadata

File identifier

725d02ed-2c93-44e8-a1ac-48a9cd5ac883

Metadata language

English

Character set

UTF8

Hierarchy level

Series

Hierarchy level name

Product record

Date stamp

2020-12-11T11:38:15

Metadata standard name

ISO 19115:2003/19139 - EMODNET - SDN

Metadata standard version

1.0

Metadata author

Organisation name	Individual name	Electronic mail address	Role
SEADATANET		sdn-userdesk@seadatanet.org	Local service desk