Jump to content

Ocean observations: Difference between revisions

From Wikipedia, the free encyclopedia
Content deleted Content added
AnomieBOT (talk | contribs)
m Dating maintenance tags: {{Bareurls}}
Filled in 5 bare reference(s) with User:Zhaofeng Li/Reflinks (f12bbc7)
Line 1: Line 1:
The following are considered essential ocean climate variables<ref>http://ioc3.unesco.org/oopc/obs/ecv.php</ref> by the Ocean Observations Panel for Climate (OOPC)<ref>http://ioc-goos-oopc.org/</ref> that are currently feasible with current observational systems .
{{bareurls|date=January 2015}}
The following are considered essential ocean climate variables<ref>http://ioc3.unesco.org/oopc/obs/ecv.php</ref> by the Ocean Observations Panel for Climate (OOPC)<ref>{{cite web|url= http://ioc-goos-oopc.org/|title= Ocean Observations Panel for Climate}}</ref> that are currently feasible with current observational systems .


==Ocean climate variables==
==Ocean climate variables==
Line 35: Line 34:
== Ocean observation sources ==
== Ocean observation sources ==
=== Satellite ===
=== Satellite ===
There is a composite network of satellites that generate observations (http://ioc3.unesco.org/oopc/obs/surface_sat.php). These include:
There is a composite network of satellites that generate observations.<ref>http://ioc3.unesco.org/oopc/obs/surface_sat.php</ref> These include:

{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
Line 73: Line 71:


===''In situ''===
===''In situ''===
There is a composite network of in situ observations (http://ioc3.unesco.org/oopc/obs/surface_insitu.php). These include:
There is a composite network of in situ observations.<ref>http://ioc3.unesco.org/oopc/obs/surface_insitu.php</ref> These include:

{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
Line 115: Line 112:


=== Subsurface ===
=== Subsurface ===
There is a composite network of subsurface observations (http://ioc3.unesco.org/oopc/obs/subsurface.php). These include:
There is a composite network of subsurface observations.<ref>http://ioc3.unesco.org/oopc/obs/subsurface.php</ref> These include:

{| class="wikitable" border="1"
{| class="wikitable" border="1"
|-
|-
Line 153: Line 149:


== Accuracy of measurements ==
== Accuracy of measurements ==
The quality of ''in situ'' measurements is non-uniform across space, time and platforms. Different platforms employ a large variety of sensors, which operate in a wide range of often hostile environments and use different measurement protocols. Occasionally, buoys are left unattended for extended periods of time, while ships may involve a certain amount of the human-related impacts in data collection and transmission.<ref>http://ams.allenpress.com/perlserv/?request=get-abstract&doi=10.1175%2F1520-0426(1999)016%3C0905%3AASDOTR%3E2.0.CO%3B2</ref> Therefore, quality control is necessary before in situ data can be further used in scientific research or other applications. This is an example of quality control and monitoring of sea surface temperatures measured by ships and buoys, the iQuam system developed at NOAA/NESDIS/STAR: http://www.star.nesdis.noaa.gov/sod/sst/iquam, where statistics show the quality of ''in situ'' measurements of sea surface temperatures.
The quality of ''in situ'' measurements is non-uniform across space, time and platforms. Different platforms employ a large variety of sensors, which operate in a wide range of often hostile environments and use different measurement protocols. Occasionally, buoys are left unattended for extended periods of time, while ships may involve a certain amount of the human-related impacts in data collection and transmission.<ref>http://ams.allenpress.com/perlserv/?request=get-abstract&doi=10.1175%2F1520-0426(1999)016%3C0905%3AASDOTR%3E2.0.CO%3B2</ref> Therefore, quality control is necessary before in situ data can be further used in scientific research or other applications. This is an example of quality control and monitoring of sea surface temperatures measured by ships and buoys, the iQuam system developed at NOAA/NESDIS/STAR,<ref>http://www.star.nesdis.noaa.gov/sod/sst/iquam</ref> where statistics show the quality of ''in situ'' measurements of sea surface temperatures.


== Historical data available ==
== Historical data available ==
OceanSITES <ref>{{cite web|url= http://www.oceansites.org/data/index.html|title= OceanSITES Data Links}}</ref> manages a set of links to various sources of available ocean data, including: the Hawaiian Ocean Timeseries (HOT),<ref>{{cite web|url= http://www.soest.hawaii.edu/HOT_WOCE/|title= The Physical Oceanography Component of Hawaii Ocean Timeseries (HOT/PO) }}</ref> the JAMSTEC Kuroshio Extension Observatory (JKEO),<ref>{{cite web|url= http://www.jamstec.go.jp/iorgc/ocorp/ktsfg/data/jkeo/index.html|title= JKEO Buoy}}</ref> Line W monitoring the North Atlantic's deep western boundary current,<ref>http://www.whoi.edu/science/PO/linew/</ref> and others.
OceanSITES <ref>http://www.oceansites.org/data/index.htm</ref> manages a set of links to various sources of available ocean data, including: the Hawaiian Ocean Timeseries (HOT),<ref>{{cite web|url= http://www.soest.hawaii.edu/HOT_WOCE/|title= The Physical Oceanography Component of Hawaii Ocean Timeseries (HOT/PO)|publisher=Soest.hawaii.edu|accessdate=14 January 2015}}</ref> the JAMSTEC Kuroshio Extension Observatory (JKEO),<ref>http://www.jamstec.go.jp/iorgc/ocorp/ktsfg/data/jkeo/index.html</ref> Line W monitoring the North Atlantic's deep western boundary current,<ref>{{cite web|url=http://www.whoi.edu/science/PO/linew/|title=Line W - Monitoring the North Atlantic Ocean's Deep Western Boundary Currents|publisher=Whoi.edu|accessdate=14 January 2015}}</ref> and others.

A variety of historical data sets is available here:
http://www.whoi.edu/page.do?pid=7140


This site includes links to the ARGO Float Data, The Data Library and Archives (DLA), the Falmouth Monthly Climate Reports, Martha's Vineyard Coastal Observatory, the Multibeam Archive, the Seafloor Data and Observation Visualization Environment (SeaDOVE): A Web-served GIS Database of Multi-scalar Seafloor Data, Seafloor Sediments Data Collection, the Upper Ocean Mooring Data Archive, the U.S. GLOBEC Data System, U.S. JGOFS Data System, and the WHOI Ship Data-Grabber System.
This site includes links to the ARGO Float Data, The Data Library and Archives (DLA), the Falmouth Monthly Climate Reports, Martha's Vineyard Coastal Observatory, the Multibeam Archive, the Seafloor Data and Observation Visualization Environment (SeaDOVE): A Web-served GIS Database of Multi-scalar Seafloor Data, Seafloor Sediments Data Collection, the Upper Ocean Mooring Data Archive, the U.S. GLOBEC Data System, U.S. JGOFS Data System, and the WHOI Ship Data-Grabber System.


There are a variety of data sets in a data library listed at Columbia University:<ref>
There are a variety of data sets in a data library listed at Columbia University:<ref>{{cite web|url=http://iridl.ldeo.columbia.edu/SOURCES/|title=dataset: SOURCES|publisher=Iridl.ldeo.columbia.edu|accessdate=14 January 2015}}</ref>
http://iridl.ldeo.columbia.edu/SOURCES/</ref>


This library includes:
This library includes:
Line 191: Line 183:


The future of oceanic observation systems:
The future of oceanic observation systems:
* Guided unmanned underwater vehicles<ref>http://rucool.marine.rutgers.edu/atlantic/</ref>
* Guided unmanned underwater vehicles<ref>{{cite web|url=http://rucool.marine.rutgers.edu/atlantic/|title=Flight Across the Atlantic - Scarlet Knight|publisher=Rucool.marine.rutgers.edu|accessdate=14 January 2015}}</ref>


== Organizations ==
==Organizations==
{{refbegin|2}}
{{refbegin|2}}
* GOOS (The [[GOOS|Global Ocean Observing System]])<ref>{{cite web|url= http://www.ioc-goos.org|title= The Global Ocean Observing System}}</ref>
* GOOS (The [[GOOS|Global Ocean Observing System]])<ref>http://www.ioc-goos.org</ref>
* GCOS ([[Global Climate Observing System]])<ref>http://www.wmo.int</ref>
* GCOS ([[Global Climate Observing System]])<ref>{{cite web|url= http://www.wmo.int|title= World Meteorological Organization}}</ref>
* IOOS ([[Integrated Ocean Observing System]])<ref>http://www.ocean.us/</ref>
* IOOS ([[Integrated Ocean Observing System]])<ref>http://www.ocean.us/</ref>
* [[Argo (oceanography)|Argo]]<ref>http://www.argo.net/</ref><ref>{{cite web|url= http://www.argo.ucsd.edu/|title= Argo}}</ref>
* [[Argo (oceanography)|Argo]]<ref>http://www.argo.net/</ref><ref>http://www.argo.ucsd.edu/</ref>
* GODAE ([[Global Ocean Data Experiment]])<ref>{{cite web|url= http://www.godae.org/Observing-the-ocean.html|title= Observing the ocean}}</ref>
* GODAE ([[Global Ocean Data Experiment]])<ref>http://www.godae.org/Observing-the-ocean.html</ref>
* OOPC ([[Ocean Observations Panel for Climate]])<ref>http://ioc3.unesco.org/oopc/</ref>
* OOPC ([[Ocean Observations Panel for Climate]])<ref>http://ioc3.unesco.org/oopc/</ref>
* OOI ([[Ocean Observatories Initiative]])<ref>http://www.oceanleadership.org/ocean_observing</ref>
* OOI ([[Ocean Observatories Initiative]])<ref>{{cite web|url=http://www.oceanleadership.org/ocean_observing|title=Consortium for Ocean Leadership|work=Consortium for Ocean Leadership|accessdate=14 January 2015}}</ref>
{{refend}}
{{refend}}


==Notes==
==References==
{{Reflist|colwidth=30em}}
{{reflist|2}}

== References ==
{{refbegin|2}}
* http://ioc3.unesco.org/oopc/
* http://www.ioc-goos.org
* http://www.wmo.int>
* http://www.ocean.us/
* http://www.oceanleadership.org/ocean_observing
* http://www.argo.ucsd.edu/
* http://www.godae.org/Observing-the-ocean.html
* http://rucool.marine.rutgers.edu/atlantic/
* http://www.whoi.edu/page.do?pid=7140
{{refend}}


{{Meteorological variables}}
{{Meteorological variables}}

Revision as of 19:52, 14 January 2015

The following are considered essential ocean climate variables[1] by the Ocean Observations Panel for Climate (OOPC)[2] that are currently feasible with current observational systems .

Ocean climate variables

Atmosphere surface

Air Temperature
Precipitation (meteorology)
evaporation
Air Pressure, sea level pressure (SLP)
Surface radiative fluxes
Surface thermodynamic fluxes
Wind speed and direction
Surface wind stress
Water vapor

Ocean surface

Sea surface temperature (SST)
Sea surface salinity (SSS)
Sea level
Sea state
Sea ice
Ocean current
Ocean color (for biological activity)
Carbon dioxide partial pressure (pCO2)

Ocean subsurface

Ocean observation sources

Satellite

There is a composite network of satellites that generate observations.[3] These include:

Type Variables observed Responsible organizations
Infrared (IR) SST, sea ice CEOS, IGOS, CGMS
AMSR-class microwave SST, wind speed, sea ice CEOS, IGOS, CGMS
Surface vector wind (two wide-swath scatterometers desired) surface vector wind, sea ice CEOS, IGOS, CGMS
Ocean color chlorophyll concentration (biomass of phytoplankton) IOCCG
high-precision altimetry sea-level anomaly from steady state CEOS, IGOS, CGMS
low-precision altimetry sea level CEOS, IGOS, CGMS
Synthetic aperture radar sea ice, sea state CEOS, IGOS, CGMS

In situ

There is a composite network of in situ observations.[4] These include:

Type Variables observed Responsible organizations
Global surface drifting buoy array with 5 degree resolution (1250 total) SST, SLP, Current (based on position change) JCOMM Data Buoy Cooperation Panel (DBCP)
Global tropical moored buoy network (about 120 moorings) typically SST and surface vector wind, but can also include SLP, current, air-sea flux variables JCOMM DBCP Tropical Moored Buoy Implementation Panel (TIP)
Volunteer Observing Ship (VOS) fleet all feasible surface ECVs JCOMM Ship Observations Team (SOT)
VOSClim all feasible surface ECVs plus extensive ship metadata JCOMM Ship Observations Team (SOT)
Global referencing mooring network (29 moorings) all feasible surface ECVs OceanSITES
GLOSS core sea-level network, plus regional/national networks sea level JCOMM GLOSS
Carbon VOS pCO2, SST, SSS IOCCP
Sea ice buoys sea ice JCOMM DBCP IABP and IPAB

Subsurface

There is a composite network of subsurface observations.[5] These include:

Type Variables observed Responsible organizations
Repeat XBT (Expendable bathythermograph) line network (41 lines) Temperature JCOMM Ship Observations Team (SOT)
Global tropical moored buoy network (~120 moorings) Temperature, salinity, current, other feasible autonomously observable ECVs JCOMM DBCP Tropical Moored Buoy Implementation Panel (TIP)
Reference mooring network (29 moorings) all autonomously observable ECVs OceanSITES
Sustained and repeated ship-based hydrography network All feasible ECVs, including those that depend on obtaining water samples IOCCP, CLIVAR, other national efforts
Argo (oceanography) network temperature, salinity, current Argo
Critical current and transport monitoring temperature, heat, freshwater, carbon transports, mass CLIVAR, IOCCP, OceanSITES
Regional and global synthesis programmes inferred currents, transports gridded fields of all ECVs GODAE, CLIVAR, other national efforts

Accuracy of measurements

The quality of in situ measurements is non-uniform across space, time and platforms. Different platforms employ a large variety of sensors, which operate in a wide range of often hostile environments and use different measurement protocols. Occasionally, buoys are left unattended for extended periods of time, while ships may involve a certain amount of the human-related impacts in data collection and transmission.[6] Therefore, quality control is necessary before in situ data can be further used in scientific research or other applications. This is an example of quality control and monitoring of sea surface temperatures measured by ships and buoys, the iQuam system developed at NOAA/NESDIS/STAR,[7] where statistics show the quality of in situ measurements of sea surface temperatures.

Historical data available

OceanSITES [8] manages a set of links to various sources of available ocean data, including: the Hawaiian Ocean Timeseries (HOT),[9] the JAMSTEC Kuroshio Extension Observatory (JKEO),[10] Line W monitoring the North Atlantic's deep western boundary current,[11] and others.

This site includes links to the ARGO Float Data, The Data Library and Archives (DLA), the Falmouth Monthly Climate Reports, Martha's Vineyard Coastal Observatory, the Multibeam Archive, the Seafloor Data and Observation Visualization Environment (SeaDOVE): A Web-served GIS Database of Multi-scalar Seafloor Data, Seafloor Sediments Data Collection, the Upper Ocean Mooring Data Archive, the U.S. GLOBEC Data System, U.S. JGOFS Data System, and the WHOI Ship Data-Grabber System.

There are a variety of data sets in a data library listed at Columbia University:[12]

This library includes:

  • LEVITUS94 is the World Ocean Atlas as of 1994, an atlas of objectively analyzed fields of major ocean parameters at the annual, seasonal, and monthly time scales. It is superseded by WOA98.
  • NOAA NODC WOA98 is the World Ocean Atlas as of 1998, an atlas of objectively analyzed fields of major ocean parameters at monthly, seasonal, and annual time scales. Superseded by WOA01.
  • NOAA NODC WOA01 is the World Ocean Atlas 2001, an atlas of objectively analyzed fields of major ocean parameters at monthly, seasonal, and annual time scales. Replaced by WOA05.
  • NOAA NODC WOA05 is the World Ocean Atlas 2005, an atlas of objectively analyzed fields of major ocean parameters at monthly, seasonal, and annual time scales.

In situ observations spanning from the early 1700s to present are available from the International Comprehensive Ocean Atmosphere Data Set (ICOADS). Further information can be found here: http://icoads.noaa.gov

This data set includes observations of a number of the surface ocean and atmospheric variables from ships, moored and drifting buoys and C-MAN stations.

Future developments

Areas requiring research and development[13]

  • Satellite observations with higher resolution and accuracy and more spectral bands from geostationary satellites
  • improved capability for ocean color observations in coastal and turbid waters
  • improved interpretation of sea-ice data from satellites
  • satellite measurement of salinity
  • Observing system evaluation and design, including improvements in air-sea flux parameterizations.
  • Improvements in ocean platforms, including increased capabilities for Argo floats
  • improved glider technology and mooring technology.
  • New development in ocean sensors and systems, including improved bio-fouling protection, autonomous water sampling systems, optical and acoustic systems, airborne variable sensors, and two-way, low-cost, low-power telecommunications.
  • New and improved capability to measure biogeochemical variables, nutrients, and dissolved oxygen and carbon dioxide, as well as to identify organisms.
  • Improved instruments, including near-surface current meters, in-water radiometers, sensors for air-sea interface variables and turbulent fluxes, and VOS sensor systems.

The future of oceanic observation systems:

  • Guided unmanned underwater vehicles[14]

Organizations

References

  1. ^ http://ioc3.unesco.org/oopc/obs/ecv.php
  2. ^ http://ioc-goos-oopc.org/
  3. ^ http://ioc3.unesco.org/oopc/obs/surface_sat.php
  4. ^ http://ioc3.unesco.org/oopc/obs/surface_insitu.php
  5. ^ http://ioc3.unesco.org/oopc/obs/subsurface.php
  6. ^ http://ams.allenpress.com/perlserv/?request=get-abstract&doi=10.1175%2F1520-0426(1999)016%3C0905%3AASDOTR%3E2.0.CO%3B2
  7. ^ http://www.star.nesdis.noaa.gov/sod/sst/iquam
  8. ^ http://www.oceansites.org/data/index.htm
  9. ^ "The Physical Oceanography Component of Hawaii Ocean Timeseries (HOT/PO)". Soest.hawaii.edu. Retrieved 14 January 2015.
  10. ^ http://www.jamstec.go.jp/iorgc/ocorp/ktsfg/data/jkeo/index.html
  11. ^ "Line W - Monitoring the North Atlantic Ocean's Deep Western Boundary Currents". Whoi.edu. Retrieved 14 January 2015.
  12. ^ "dataset: SOURCES". Iridl.ldeo.columbia.edu. Retrieved 14 January 2015.
  13. ^ http://ioc3.unesco.org/oopc/obs/challenges.php
  14. ^ "Flight Across the Atlantic - Scarlet Knight". Rucool.marine.rutgers.edu. Retrieved 14 January 2015.
  15. ^ http://www.ioc-goos.org
  16. ^ http://www.wmo.int
  17. ^ http://www.ocean.us/
  18. ^ http://www.argo.net/
  19. ^ http://www.argo.ucsd.edu/
  20. ^ http://www.godae.org/Observing-the-ocean.html
  21. ^ http://ioc3.unesco.org/oopc/
  22. ^ "Consortium for Ocean Leadership". Consortium for Ocean Leadership. Retrieved 14 January 2015.

Template:Space-based meteorological observation