NA-ARC

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Nb of profiles in the database:
?

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Map
Charts
Time series
Data Explorer
Tickets and Data quality
Profiles selection wizard
API documentation
Deployment plan
3D webGL experiment
Documents and Links
About

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North Atlantic Argo Regional Center

Information and data mining tool

This website provides you with a new method to obtain and explore information from the Argo array in the North Atlantic ocean.

Our goals are:

to provide an interactive user interface for Argo data mining,
to simplify access to information about all, or a subset of, profiles,
to centralize as much as possible informations provided by other services.

Here is a non-exhaustive list of services we provide:

statistics (number of profiles/floats, distribution per data mode, DAC, over time, etc...),
descriptive information about profiles (issue, figure, map, etc...),
scripts to download netcdf profiles directly from GDAC ftp servers.

You can access theses services directly from this website (start here for instance) or programmatically using the NA-ARC web API (see the documentation).

These tools only concern Argo profiles located in the North-Atlantic north of 20S.

Please, report bugs or new service requests to: code@guillaumemaze.org

These tools do not provide direct Argo measurements and are not a substitute to netcdf profile files.

Database | Charts

Show nb of profiles Show nb of floats

API query : get=n&by=dac

API query : get=n&by=dmode

API query : get=n&by=psal

API query : get=n&by=doxy

Gauge ticks are every 20% of the total number of ?.
API query : get=n&by= psal and doxy

Database | Temporal Sampling

Show nb of profiles Show nb of floats

API query : get=n&by=year

API query : get=n&by=month

'Good' profiles have more than 75% of good values, 'Bad' profiles have less than 25% of good values, 'Intermediate' are all the others. Profiles without QC flag not accounted for.

API query : get=n&by=year,temp_qc

API query : get=n&by=year,dmode

API query : get=n&by=year&par=o

Database | Mapping

Color markers by: Default DAC name Data Mode Oxygen ? Ticket ?

API query:

Show active profiles

Select the number of days since floats last reported a profile:

Profiles age (days) :

Show deployment plan

On the map are displayed locations of planned deployment of new Argo profiler for the:

Atlantic Ocean,
Mediterranean Sea,
and Arctic Ocean.

For detailed information please visit the Deployment plan section.

Show your selection of profiles

On the map are displayed locations of profiles from your custom selection.

Your selection contains more than 20,000 profiles ! It wouldn't be efficient to look at them here, so I won't display your selection.

However interactive visualization tools in the Charts, Temporal sampling and Tickets and Data quality panels are available with your selection.

Use the Profile selection wizard to fill in your cart with profiles to be map here.

Note that I won't display more than 20,000 profiles

Web API version 1 | documentation

Explore | data

Search for a float by its WMO:
Cycle numbers for float :

If you have no clue about float WMOs:

check out these nice floats to start with: 6900678, 6900087, 4900424, 4900345, 4900881.
start typing any number in the search box, WMOs will appear...
use the profiles selection wizard and select import to the data explorer on the last panel.

Data | issues and quality

Search for a WMO:

API query:

N is defined as the percentage of levels with good data where:
o QC flag values of 1, 2, 5, or 8 are GOOD data
o QC flag values of 9 (missing) are NOT USED in the computation
o All other QC flag values are BAD data

API query : get=n&by= pres_qc and temp_qc and psal_qc and doxy_qc

API query : get=n&by=ticket

Deployment plan

The map of Argo float deployment plan is available in the 'Map' section.

More figures (float densities for instance) are available on the Argo data management website.

Source: JCOMMOPS/Argo Information Centre

Search anything in the table:

API query: ?

More details from the API source: ASCII file of all deployment plans.

Documents and Links

NA-ARC website and API

Article in the quaterly Mercator/Coriolis Newsletter of April, 2012:
A new information and data mining tool for North Atlantic Argo data (451Kb)
Seminar introducing the NA-ARC web API, held at Ifremer on Jan.20th/2012: (2.6Mb)
Full online documentation (mobile friendly)

NA-ARC Meeting reports:

2nd Meeting, Ifremer Brest (2007/01/31): (819 Kb)
1st Meeting, Ifremer Issy Les Moulineaux (2005/10/25-26): (49 Kb)

ARC Meeting reports:

2nd Meeting (2008/10/28): (88 Kb)
1st Meeting (2007/11/13): (119 Kb)

Informations

Argo Information Center (AIC)
Mailing list: http://list.jcommops.org/sympa/info/argo-naarc

Other Argo Regional Centers :

Pacific Argo Regional Center (PARC) : http://apdrc.soest.hawaii.edu/argo/
Indian Argo Regional Center (IARC): http://www.incois.gov.in/Incois/argo/argo_dataregional.jsp
South Atlantic Argo Regional Center (SA-ARC): http://www.aoml.noaa.gov/phod/sardac/index.php
Southern Ocean Argo Regional Center (SO-ARC): http://www.bodc.ac.uk/projects/international/argo/southern_ocean/

About

Follow us on twitter

Follow @argonaarc

Code and web design:

Follow @mazeguillaume

Share !

Like this website and/or the API ? Please share it !

The NAARC Web API is not available

The website will be loaded with minimal functionality.

Please select a format for your data:

See the API documentation for more details on data format.

Please select a format for your data:

Note that these files are automatically generated by the Coriolis Data Center and do not rely on the NAARC api.

By clicking on one of the format below, you will be redirect to the Coriolis Data Center appropriate webpage (you may need to reload the page if you have an error message).

Help

This wizard will help you to create a selection of profiles from the database.

At the end of this process, you will be able to:

send your selection of profiles to the interactive visualization tools on this website,
generate a script to download netcdf profiles of your selection (from GDAC ftp servers),
see the API request string corresponding to your selection, so that you can use it to create your own API queries.

In the table under 'Selection of properties to restrict' are listed in the left column all profile properties on which you can apply restrictions.

To be asked to apply a restriction on one of these properties, simply drag it to the right column.

Then click on the Let's start button to specify parameters for each of your restrictions.

Hover each parameters with your mouse to see some indications about the corresponding restriction process.

Selection of properties to restrict

Color legend:

Meta properties

Space/time

Data quality

You must choose a least one selection criteria !

Restrict profiles from their DAC origin

Drag one, or more, DAC name from the left column to the right to select only profiles having this DAC origin:

Restrict profiles from their Data Mode

Drag one, or more, Data mode from the left column to the right to select only profiles having this Data mode:

R: Real time data
D: Delayed mode data
A: Real time data with Adjusted values

Restrict profiles within a time range

Select only profiles from year(s):

AND
only profiles with a specific month range:

Month(s):

Restrict profiles from their coordinates

Only profiles within the red box will be selected.

Click on the map icons to modify the rectangular area.
Or precisely enter coordinates below:

Longitude:		°W
Latitude:		°N
Size in Lon:		°
Size in Lat:		°

You may want to overlay a float trajectory:

Search a float WMO:

Select profiles from their WMO id

Start to type a WMO number in the left box below. When available WMOs appear to the right, you can select one by a simple click. Renew the search/select process as much as you want to create your coma separated list of WMO restriction.

Search for WMOs here:

Select a WMO here:

Note that you can also simply paste a coma separated list of WMOs in the left box to create your selection.

Select profiles with or without a ticket

Click to select only profiles ...

... without a ticket
... with a ticket

Press the Ctrl/

key to select both

Select profiles by area code

Select only profiles within one or more of the following areas:

Atlantic Ocean
Mediterranean Sea
Arctic Ocean

Press the Ctrl/

key to select more than one area

Select profiles by parameters:

Select only profiles having one or more of the following parameters:

Salinity
Oxygen

Press the Ctrl/

key to select more than one parameter

Select profiles by % of levels with good data:

Once quality control procedures have been applied, a synthetic flag is assigned for each parameter of each profile under the '⟨PARAM⟩_PROFILE_QC' parameter in netcdf files. It indicates the fraction N of profile levels with good data.

Use the following table to select the percentage of levels with good data you would like in your selection for each of the available parameters.

Parameter	% of levels with good data
Pressure	N = 100% 100% ⟩ N ⟩= 75% 75% ⟩ N ⟩= 50% 50% ⟩ N ⟩= 25% 25% ⟩ N ⟩ 0% N = 0% No QC performed
Temperature	N = 100% 100% ⟩ N ⟩= 75% 75% ⟩ N ⟩= 50% 50% ⟩ N ⟩= 25% 25% ⟩ N ⟩ 0% N = 0% No QC performed
Salinity	N = 100% 100% ⟩ N ⟩= 75% 75% ⟩ N ⟩= 50% 50% ⟩ N ⟩= 25% 25% ⟩ N ⟩ 0% N = 0% No QC performed
Oxygen	N = 100% 100% ⟩ N ⟩= 75% 75% ⟩ N ⟩= 50% 50% ⟩ N ⟩= 25% 25% ⟩ N ⟩ 0% N = 0% No QC performed

I'm sorry !

No profiles match your selection

Congratulations !

I found from matching your selection !

Select what you want to do with this selection:
	on interactive visualization tools on this website. Everywhere you see the cart icon, your selection is available.
	to download netcdf profiles of your selection from a GDAC ftp server.

The restriction string corresponding to your selection is:

You can now append this string to a NA-ARC web API query. For instance with the function n of service get:

See the API documentation for more details.

Navigation:
h	Go to 'Home' panel
m	Go to 'Map' panel
c	Go to 'Charts' panel
t	Go to 'Time series' panel
d	Go to 'Data Explorer' panel
q	Go to 'Tickets and Data quality' panel
s	Open the 'Profile selection wizard'
p	Go to 'Deployment' panel
Misc:
e	Expand/Collapse the menu bar
esc	Close a dialog window

Right click on the figure below to download the png image file.