Argo Data Management Activities at the National Centers for Environmental Information (NCEI)

Tim Boyer, Ricardo Locarnini, and John Relph

QUICK STATS: GLOBAL ARGO DATA REPOSITORY (GADR)

October 2019 to October 2020 ftp+https

Page hits Gigabytes downloaded Location

7,496,478 706 data.nodc/argo/gadr/

528,965 368 data.nodc/argo/gdac/

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Number of distinct hosts: 34,380

Perspective (Totals in GADR as of November 3,2020)

Total Argo single cycle files: 2,364,115

Total size all Argo files: 143 Gigabytes

+ GADR archived 12 monthly tar ball of entire mirror of GODAE Argo data set

GADR FTP Download Statistics Oct. 2019 – Oct 2020

GADR https Download Statistics Oct. 2019 – Oct 2020

Global Argo Data Repository (GADR) Argo Data Object Identifier (DOI)

GADR DOI

https://doi.org/10.25921/q97e-d719

Cite as DOI + month of use

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Argo DOI landing page:

https://www.ncei.noaa.gov/access/metadata/landing-page/bin/iso?id=gov.noaa.nodc:Argo-Monthly

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Uses of Argo data at NCEI

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• Daily input to Optimally Interpolated Sea Surface Temperature (OISST) – up to 40% of OISST global data coverage

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• Quarterly updates of the World Ocean Database – aggregating all observing systems and research profile data

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• Quarterly updates of NCEI ocean heat content, salt content, steric sea level, mixed layer depth (new this year)

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• Three times weekly updates of Global Temperature and Salinity Profile Program (GTSPP) – pulled from Global Telecommunications System (GTS) by DFO-MEDS Canada

GADR issues a NCEI

• Internal – completing transfer of all computer system applications from NCEI-Maryland to NCEI-North Carolina.

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• GDAC mirroring time reduced from 8-14 hours to approximately 3 hours daily thanks to updated file listing from IFREMER/Thierry Carval

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• GADR still mirroring from IFREMER – working with U. S. GODAE to implement rsync with file listing

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• GTSPP still not able to systematically decode BUFR form. Near-real time Argo data added to GTSPP through work around with DFO-MEDS Canada

Contribution to Argo CTD Reference Database: CTD casts to depths > 2000 m for years 2000 to 2020 uploaded to the World Ocean Database between November 2019 and November 2020.

Red: Sourced from the CLIVAR and Carbon Hydrographic Office (CCHDO) 416 casts

Black: Other sources 569 casts

Non CCHDO sources:

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Global Temperature and Salinity Profile Program (GTSPP) – Japanese and Canadian sources

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International Council for Exploration of the Seas (ICES)

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Gulf of Mexico post Deep Water Horizon spill studies

(from Argo CTD reference database presentation ADMT-21)

Effects of the Pandemic on the Ocean Observing System – paper in preparation. Fewer ship days, difficulty deploying new Argo floats. Little effect on global coverage to this point, but effects may show up as floats die or drift out of some areas.

Marine Climate Data System (MCDS)

• World Meteorological Organization and Intergovernmental Oceanographic Committee Joint Committee on Oceanography and Marine Meteorology (JCOMM) solution for providing an international data flow for historic (delayed mode) data, reporting, and metadata.

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• Argo GDAC in MCDS invitation held up

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• There is no more JCOMM. MCDS absorbed into WMO structure

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• WMO Expert team on Information Management (ET-IM) recently formed in part to pick up for JCOMM dissolution.

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• Second meeting of WMO ET-IM Dec 2, 2020 – main topic MCDS.

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NOAA

World Ocean Database Cloud

Higher level tools

DATA AND QC PROVIDERS

DATA AND PRODUCT USERS

User Communities

Big Data Program

World Ocean Database Cloud (WODc) project

Partnership: NOAA Big Data Project https://registry.opendata.aws/noaa-wod/�

Venue for Argo in the Cloud?

THANK YOU – QUESTIONS?