Data Access

HOAPS-3.2 is distributed through the CM SAF Web User Interface (WUI): ››CM SAF: HOAPS-3.2.
You will need an CM SAF account before downloading the data.
The file format documentation can be found here: ››File Format.

IMPORTANT: For some parameters you will need to apply for access rights separately ("Insufficient Access Rights error"), since the current operational releases of HOAPS-3.2 from CM SAF does not include all of the parameters from the previous version HOAPS-3. An official CM SAF ID is currently assigned only to a selected subset of variables of the HOAPS-3.2 release (››see "HOAPS Code Table").

In order to make the remaining and ancillary HOAPS parameters easily available to the research community, it has been agreed between CM SAF and the HOAPS group at the MPI-M / UHH to distribute these parameters also via the CM SAF Web User Interface. The data processing standards are the same for all parameters, as it has been in the previous releases. However, support for the non-CM SAF parameters is provided by the HOAPS group at MPI-M / UHH. Any request regarding these parameters should be sent to .

Enable full HOAPS data access rights at CM SAF:

To enable the access for all HOAPS parameters you will have to change the access rights of your user profile in the CM SAF Web User interface.

Step-by-step instructions:
  • login to the CM SAF Web User Interface (WUI)
  • in the left menu choose "User" -> "User profile"
  • scroll down the page and change your "Customer class" to "Access to mean + HOAPS products"
  • click on "Save"
  • A confirmation page appears containing a link to a PDF. Download and read the PDF for further instructions.
    To complete the change of your user rights, you need to send an email to the CM SAF User Help Desk, confirming that you acknowledge the Terms of Use for the HOAPS data (see the PDF for details).
  • You will receive an email when your account has been enabled to access all HOAPS parameters.

Terms Of Use

All HOAPS data sets are freely available for scientific use. When using HOAPS data, please use the following references:

Citations for the HOAPS-3.2 data set:
K. Fennig, A. Andersson, S. Bakan, C. Klepp, M. Schroeder, 2012:
Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data - HOAPS 3.2 - Monthly Means / 6-Hourly Composites. Satellite Application Facility on Climate Monitoring. doi:10.5676/EUM_SAF_CM/HOAPS/V001.

A. Andersson, K. Fennig, C. Klepp, S. Bakan, H. Grassl, and J. Schulz, 2010:
The Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data - HOAPS-3, Earth Syst. Sci. Data, 2, 215-234, doi:10.5194/essd-2-215-2010.

The parameters with the CM SAF ID 141 to 146 (››see "HOAPS Code Table") are officially supported by CM SAF and all intellectual property rights of the CM SAF products belong to EUMETSAT. The use of these products is granted to every interested user, free of charge. If you wish to use these products, EUMETSAT's copyright credit must be shown by displaying the words "copyright (year) EUMETSAT" on each of the products used.

HOAPS-3.0

The previous version - HOAPS-3.0 - is still accessible from the CERA database-system:
››CERA: HOAPS-G monthly,
››CERA: HOAPS-G pentad, and
››CERA: HOAPS-C twice daily

To download the data you need a CERA account. Please follow the instructions given at the CERA Gateway. Details on the terms of use for the WDCC Database can be found here: ››CERA Terms Of Use

The file format documentation can be found here: ››HOAPS 3.0 File Format

Citations for the HOAPS-3 data set:
A. Andersson, K. Fennig, C. Klepp, S. Bakan, H. Grassl, and J. Schulz, 2010:
The Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data - HOAPS-3, Earth Syst. Sci. Data, 2, 215-234, doi:10.5194/essd-2-215-2010.

Andersson, Axel; Bakan, Stephan; Fennig, Karsten; Grassl, Hartmut; Klepp, Christian-Phillip; Schulz, Joerg, 2007:
Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data - HOAPS-3 - monthly mean., electronic publication, World Data Center for Climate, doi:10.1594/WDCC/HOAPS3_MONTHLY.

Andersson, Axel; Bakan, Stephan; Fennig, Karsten; Grassl, Hartmut; Klepp, Christian-Phillip; Schulz, Joerg, 2007:
Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data - HOAPS-3 - 5-days mean., electronic publication, World Data Center for Climate, doi:10.1594/WDCC/HOAPS3_PENTAD.

Andersson, Axel; Bakan, Stephan; Fennig, Karsten; Grassl, Hartmut; Klepp, Christian-Phillip; Schulz, Joerg, 2007:
Hamburg Ocean Atmosphere Parameters and Fluxes from Satellite Data - HOAPS-3 - twice daily composite., electronic publication, World Data Center for Climate, doi:10.1594/WDCC/HOAPS3_DAILY.

HOAPS-II

The version - HOAPS-II - is also still accessible in the CERA database-system:
HOAPS-G v2 monthly and
HOAPS-G v2 pentad