World ocean database world ocean atlas and regional climatologies
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World Ocean Database, World Ocean Atlas, and Regional Climatologies. Ocean Climate Laboratory Team/NODC. Outline. The size and shape of a global ocean profile database Data Archeology and Rescue Data flow into and out of a global ocean profile database

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World Ocean Database, World Ocean Atlas, and Regional Climatologies

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World ocean database world ocean atlas and regional climatologies

World Ocean Database, World Ocean Atlas, and Regional Climatologies

Ocean Climate Laboratory Team/NODC


Outline

Outline

  • The size and shape of a global ocean profile database

  • Data Archeology and Rescue

  • Data flow into and out of a global ocean profile database

  • NODC products from global ocean database


World ocean database wod

World Ocean Database (WOD)

A quality controlled collection of ocean profiles, plankton tow , and ship-based surface measurements from 1772-present.


Variables in wod

Instrument types in WOD

Variables in WOD

  • 1) temperature

  • 2) salinity

  • 3) oxygen

  • 4) phosphate

  • 5) nitrate

  • 6) nitrate + nitrite

  • 6) silicate

  • 5) chlorophyll

  • 6) pH

  • 7) alkalinity

  • 8) pCO2

  • 9) TCO2

  • Plankton

  • 11) CFCs 11, 12, and 113

  • 12) Tritium

  • 13) Helium (noble gas)

  • 14) ΔHe-3 (isotope)

  • 15) ΔC-13 (isotope)

  • 16) ΔC-14 (isotope)

  • 17) Argon (noble gas)

  • 18) Neon (noble gas)

  • 19) O-18 (isotope)

  • 20) Beam Attenuation Coefficient (transmissivity)

1) Station Data (bottles, thermometers)

2) CTD

3) XBT

4) MBT

5) Towed CTD

6) Profiling Floats

7) Drifting buoy (thermistor chains)

8) Moored buoy (e.g., TAO, PIRATA TRITON)

9) Autonomous Pinniped (instrumented

elephant seals)

10) Gliders

Blue: Quality control beyond automatic checks


Wod by instrument type

WOD by Instrument Type


World ocean database world ocean atlas and regional climatologies

Temperature Data During Peak of Different

Observing Systems

1934 : Nansen Cast

1960 : MBT

1985 : XBT

Red=Nansen Cast /CTD[1890s/1964]

Light Blue=MBT [1939]

Dark Blue=XBT [1967]

Green=Argo float [2001]

Orange=Tropical buoy [1984]

2009 :

Argo


Measurements vs depth wod13

Measurements vs. Depth WOD13

Measurements (X105)

Measurements (X104)

Depth (m)

Depth (m)


World ocean database

World Ocean Database

  • Contains contributions from national

    data centers, universities, special projects,

    fisheries, navies, government agencies, individual scientists, merchant ships etc.

  • Data found on internet, index cards, glass slides, outdated computer media, published cruise reports, etc.

  • Original data must be accessible in the NODC archive/permission must be obtained for all data


Data archeology and rescue

Data Archeology and Rescue

Nansen’s Arctic expedition, 1893-1896

Fram (1892 – 1912)

Trial cruise

Photo: wikipedia

Amundsen’s South Pole expedition, 1910-1912

* No data from Sverdrup’s Canadian Archipelago expedition (1898-1902)

5 accessions, 3 cruises


World ocean database world ocean atlas and regional climatologies

Near-real time data from GTSPP: 2013

Green – XBT (8,340casts)

Red – CTD (14,521 casts)

Blue - Pinniped(3,970 dives)

Turquoise – Glider (20,499half cycles)


World ocean database world ocean atlas and regional climatologies

Examples of Delayed-mode data Updates to WOD

ICES

CCHDO

Blue – Quarterly

Orange- Yearly

Green - Irregular

WHOI Ice

Tethered Buoys

TAO maintenance

cruises

CalCOFI

World Ocean

Database Quarterly

Updates

NOAA

Northeast

Fisheries

Japan Ocean

Data Center

INIDEP

(Argentina)

CSIRO

Line W


World ocean database world ocean atlas and regional climatologies

Data Dissemination:

Yearly by instrument

Geographically by instrument

WODselect

All updated quarterly

Format:

Native WOD format

(compact ASCII) with conversion

routines

netCDF -> feeds into

NODC Geoportal/THREDDS server

Working now on subset dissemination through Geoportal


World ocean database world ocean atlas and regional climatologies

OCL/NODC

Science and

Data Community

MAKE DATA AVAILABLE

Convert Data to Common

Format/Initial Quality Control

Calculate Climatologies

Secondary Quality Control

Release Database

With Quality Control Flags

Scientific Research

Post-release Quality Control

Monthly database updates

Publish Results

FEEDBACK LOOP


World ocean database world ocean atlas and regional climatologies

WOA13 salinity at 50 m depth for years 2005-2012

WOA13 temperature at 100 m depth at 1/4° grid resolution


World ocean database world ocean atlas and regional climatologies

WOA13: Increased horizontal and vertical resolution

Gulf Stream Example


Nodc regional climatologies

NODC Regional Climatologies

Up to date, four regional climatologies have been completed and published at NODC web site. Gulf of Mexico (a supplement to the Gulf of Mexico Digital Atlas), the East Asian Seas Climatology, the Arctic and most recently Greenland-Iceland-Norwegian Seas

NODC existing and intended regional climatologies in the Northern Hemisphere in FY12-FY16 (the Nordic Seas Atlas is a collaborative NODC-AARI –University of Bergen project).

NODC Regional Climatology Team: Seidov, D., O.K. Baranova, M. Biddle, T.P. Boyer, D.R. Johnson, A.V. Mishonov and M. Zweng


Gins regional climatology

GINS Regional Climatology

The Greenland, Iceland and Norwegian Seas (GINS) – the gateways for water exchange between the North Atlantic Ocean and the Arctic – play a key role in the entire high-latitudinal ocean climate formation and change.

To provide an improved oceanographic foundation and reference for multi-disciplinary studies of the GINS, NODC Regional Climatology Team developed a new set of high-resolution quality-controlled long-term annual, seasonal and monthly mean temperature and salinity fields on different depth levels.

Temperature and currents schema at 200 m

(Eldevik et al, 2009)


Northwest atlantic nwa regional climatology smecc nodc fy14 work in progress

Northwest Atlantic (NWA) Regional Climatology(SMECC; NODC FY14 - work in progress)

The NWA high-resolution regional climatology is a part of the NOAA-wide Sustained Marine Ecosystem in Changing Climate (SMECC) Project.

NODC Regional Climatology Team1 developed a new set of high-resolution quality-controlled long-term annual, seasonal and monthly mean temperature and salinity fields on different depth levels.

This new regional climatology is based on the World Ocean Database 2013 archive of temperature and salinity from observations spanning over more than a hundred years and incorporates a great deal of new data not previously available.

High-resolution NWA regional climatology provides quality-controlled temperature and salinity on 87 levels with 1/10°x1/10° grid resolution.

NODC NWA web site screenshot (web site is under construction).


High resolution all time nwa climatology

High-resolution “all-time” NWA climatology

At the moment, the “all-time” NWA climatology has been completed on 1/10x1/10° grid. “All-time” means the climatology was compiled using all available data. There will be decadal climatologies compiled for six decades from 1955-1954 to 2005-2012 (the last “decade” has only eight years of data). The decades 1995-2004 and 2005-2012 will be completed by the end of FY14, while earlier decades are due in FY15.

Annual temperature at the surface from NWA regional climatologies with 1°x1°, 1/4°x1/4° and 1/10°x1/10° grid resolution show dramatic improvements provided by high-resolution climatology.

1°x1°

1/4°x1/4°

1/10°x1/10°

Annually-averaged climatological sea surface temperature (°C)


World ocean database world ocean atlas and regional climatologies

Thank you


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