Access to COSMO-SkyMed Supersite SAR imagery

Thanks to an agreement between ASI and ESA, since April 2018 all the data acquired by COSMO-SkyMed over the Supersites, are made available through the ESA Geohazard Exploitation Platform (GEP).

To browse and access the data use the GEP Geobrowser: https://geohazards-tep.eo.esa.int/geobrowser/

Please note that while browsing is open to all, to be able to download the data the user must have signed a COSMO-SkyMed License for use, and must have an ESA SSO account.

A user guide describing how to browse and download the data is available here.

Here below you can find answers to Frequently Asked Questions:

 

COSMO-SkyMed data access FAQs

 What happens to the CSK data acquired over a Supersite?

When a new dataset (image) is produced and placed on the ASI ftp server, the ASI centre in Matera  sends an alert email to the Supersite Coordinator with a link for download. At the same time ASI uploads the dataset(s) to an ftp area set up by ESA for each Supersite. The GEP team then periodically collects the uploaded data and moves them to the Supersite data repository of the GEP (the Virtual Archive). The data can then be browsed from the Virtual Archive directly, at  http://eo-virtual-archive4.esa.int/, or through the GEP Geobrowser interface at https://geohazards-tep.eo.esa.int/geobrowser.

How can I discover the CSK data on the ESA Virtual Archive ?

You can access the interface of the ESA Virtual Archive for  Supersites at:  http://eo-virtual-archive4.esa.int/
The VA contains thousands of  images from ESA and Third party missions (ERS, ENVISAT, TSX, CSK, etc.).
A CSK dataset can have the following names:

  • for raw data,  CSKS1_RAW_B_HI_08_HH_RA_SF_20180214161155_20180214161202
  • for slc data,    CSKS1_SCS_B_HI_08_HH_RA_SF_20180214161155_20180214161202

After defining a search area in the map, you can search CSK data (e.g. by looking for CSKSn, in which n is the satellite number, 1-4). Please note that the flag “Include restricted collection” must be checked to find CSK data.
A list of images is then displayed in the left panel; by clicking on an image in the list, its metadata are shown in the panel below the map. The download link appears by clicking on the Access tab.
However, to download the image you need to sign in using your ESA SSO account (the account must be preliminarly authorized to access the CSK mission data).

How can I discover the CSK data on the GEP Geobrowser ?

You can access the GEP Geobrowser at: https://geohazards-tep.eo.esa.int/geobrowser
The GEP connects to the Virtual archive to discover thousands of  images from ESA and Third party missions (ERS, ENVISAT, TSX, CSK, etc.). The GEP can also access data which are not on the VA, and value-added processing products (e.g. interferograms, DEMs) generated by GEP users.
To discover CSK data you define an area in the map and then select the mission from the EO Data drop down list. You can then further select the images you want from the bottom left panel. When you select an image in this panel a pop up window appears with the image Metadata.
To download the image you need to sign in using your ESA SSO account (the account must be preliminarly authorized to access the CSK mission data).

How can I download the Supersite data (not only CSK) from the Virtual Archive?

To download data from the VA you need an ESA Single Sign On (SSO) account. You can get one by registering at this address: http://eosupport.eo.esa.int/sso/registration.php
If you already have an SSO account, login at: https://eo-sso-idp.eo.esa.int/idp/umsso20/admin
Before continuing you need to be sure that your SSO account has been authorized to download the specific mission data (e.g. CSK). How to do this is explained in the Authorization FAQ.
When an image is selected in the left window, the Access tab in the panel below the map shows an URL for downloading the image file. If you are logged in and authorized, you can download it by right-clicking on the link and saving it. At present images can be downloaded only one at a time.

 How can I download the Supersite data (not only CSK) from the GEP?

To download data from the GEP you need an ESA Single Sign On (SSO) account. You can get one by registering directly on the GEP (top menu).
If you already have an ESA SSO account, you can login into the GEP, but to be able to download satellite data you need to be sure that your SSO account has been authorized to download the specific mission data (e.g. CSK), see the Authorization FAQ.
If you are logged in, your search results shown in the bottom left panel can be placed in the basket in the right panel. If you are logged in and authorized to download, when you select an image, the pop up Metadata panel in the map shows also the Download link. The latter provides two options, to download CSK data you must choose the Data option. At present images can be downloaded only one at a time.

Authorization to download CSK  data

Before being able to download CSK data (and other mission data) your ESA SSO account must be authorized. To do this you need to sign a COSMO-SkyMed license agreement. You need to sign the license only once for each Supersite.
Note that the license agreements are different for each space agency so if you wanted all data for a  given Supersite you would need to sign a license for CSK, one for TSX/TDX, one for Rsat2, one for Pleiades.
Moreover, for CSK the license is different for each Supersite, thus if you want CSK data for another Supersite, you need to sign another license.
The CSK license files are provided by the Supersite Coordinators, who are listed here: http://geo-gsnl.org/about/governance/points-of-contact/
The appropriate form page in the file must be filled and signed (two signatures at the bottom) and sent back to the Supersite Coordinator and to the GSNL SAC Chair, at the address info@geo-gsnl.org
The Supersite Coordinator will then send the signed license to ASI. The person in charge at ASI will inform ESA that the user can be authorized to download CSK data, and ESA will update the user’s SSO account authorization.

Points of Contact:

  • ASI: maria.virelli@asi.it
  • ESA: roberto.cuccu@esa.int

This procedure should take 7-10 days, and it must be done only once for each Supersite.