Asia Coastal Ocean Color Portal (A-COP)

Asia Coastal Ocean Color Portal (A-COP) is a service operated by the Earth Surface System Research Center at Japan Agency for Marine-Earth Science and Technology (JAMSTEC/ESS) that provides near real-time display and distribution of satellite-observed ocean color data for the Asia region.

The service is currently in a trial phase. Please be aware that specifications and other details may be subject to change without notice prior to the official launch.

A-COP Update Plan

November 2024
- Start of trial operation
- Trial Release of GCOM-C/SGLI 250m chlorophyll-a concentration (Chl-a) for Dec. 2023
December 2024
- Trial Release of GCOM-C/SGLI 250m sea surface temperature (SST) and remote sensing reflectance (Rrs) over a one-month period
March 2025
- Release of GCOM-C/SGLI 250m Chl-a, SST, Rrs and Optical Water Quality Map (OWQ-Map) from Jan. 2023 to Mar. 2024
- Support of CSW and GeoTIFF downloads
April 2025
- Official start of operation
- Release of near-realtime GCOM-C/SGLI 250m Chl-a, SST, Rrs and OWQ-Map
H1 2025
- Release of GCOM-C/SGLI 250m Chl-a, SST, Rrs and OWQ-Map from Jan. 2018 to Dec. 2023
- Release of Python API and QGIS plugin

November 2024
- Start of trial operation
- Trial Release of GCOM-C/SGLI 250m chlorophyll-a concentration (Chl-a) for Dec. 2023
December 2024
- Trial Release of GCOM-C/SGLI 250m sea surface temperature (SST) and remote sensing reflectance (Rrs) over a one-month period
March 2025
- Release of GCOM-C/SGLI 250m Chl-a, SST, Rrs and Optical Water Quality Map (OWQ-Map) from Jan. 2023 to Mar. 2024
- Support of CSW and GeoTIFF downloads
April 2025
- Official start of operation
- Release of near-realtime GCOM-C/SGLI 250m Chl-a, SST, Rrs and OWQ-Map
H1 2025
- Release of GCOM-C/SGLI 250m Chl-a, SST, Rrs and OWQ-Map from Jan. 2018 to Dec. 2023
- Release of Python API and QGIS plugin

Data Viewer

Testing

Chlorophyll-a Concentration

GCOM-C/SGLI

Area: Asia

Period:

Daily Half-Monthly Monthly

Preparing

Sea Surface Temperature (Daytime)

GCOM-C/SGLI

Area: Asia

Period:

Preparing

Sea Surface Temperature (Nighttime)

GCOM-C/SGLI

Area: Asia

Period:

Preparing

Remote Sensing Reflectance

GCOM-C/SGLI

Area: Asia

Period:

Preparing

Optical Water Quality Map

GCOM-C/SGLI

Area: Asia

Period:

Data Access

CSV

Developing

GeoTIFF

Developing

Python API

Developing

QGIS Plugin

Developing

Policy

A-COP website (Here in after referred to as the "website") and the data distributed from the website are created and operated by Earth Surface System Research Center at Japan Agency for Marine-Earth Science and Technology (JAMSTEC/ESS) in cooperation with Earth Observation Research Center at Japan Aerospace Exploration Agency (JAXA/EORC), JAXA Earth API provided by JAXA/EORC and Tokai university Research and Information Center (TRIC).

JAMSTEC/ESS JAXA/EORC JAXA Earth API TRIC

The following policies and disclaimers apply to the website and the data distributed from the website.

Site Policy

You may freely link to the A-COP website. When linking to the website, it is recommended that links point to https://a-cop.net/ since no guarantees can be made regarding the permanence of other pages. JAMSTEC accepts no responsibility or liability in relation to content delivered from servers external to JAMSTEC, including those servers that link to the website.

All documents, images, and other data provided on the website and the copyrights therein are in principle subject to the JAMSTEC site policy and belong to the property of JAMSTEC, unless otherwise stated.

JAMSTEC site policy

Data Policy

In principle, the JAMSTEC sata policy applies to data distributed from the website, but unless otherwise stated, data is available free of charge, including for scientific, educational, and industrial use. However, in the case of data distributed from sources other than JAMSTEC, the policy applicable to the source data takes precedence.

JAMSTEC data policy

When publishing results (papers, websites, application software, etc.) that use data distributed from the website, please clearly state that you obtained the data from this website, for example, "The data used in this paper have been obtained from A-COP of JAMSTEC/ESS". In addition, we would appreciate it if you could contact us via the e-mail address provided in the Contact section regarding the results you have published, as we would like to evaluate the results of the use of the distributed data.

Disclaimer

All and any content (documents, distributed data, etc.) on the website are subject to change or cancellation without prior notice. JAMSTEC assumes no responsibility or liability in relation to damages resulting from the content of these documents and the use of the data distributed from the site, nor changes and so forth to the content of these documents and the use of the data distributed from the site. In addition, JAMSTEC accepts no responsibility or liability for any damages, whether incurred directly or indirectly, due to the use of the pages of the website.

Those policies are subject to change without notice. If you have any questions, please contact us via e-mail in the Contact section.

Contact

Please send inquiries to the following e-mail address.

a-cop[at]jamstec.go.jp (Please replace [at] with "@" when sending an email)