FAQs

1.Where can I find scientific information on the LSA-SAF products?

Scientific information on each product can be found on the corresponding products family page which is accessible via the menu: Data->Products. Selecting a product family takes you to the landing page with the list of the products and resources. For the product of interest, follow the link of the documentation (“Access here” blue button). There you will find 3 folders with the relevant documentation: PUM (product user manual), ATDB (Algorithm Theoretical Basis Document) and VR (Validation Report).

1.Where can I find information on how to access LSA SAF products

The LSA SAF data service user guide has a detailed description of the different available protocols to access the products (https, WebDAV, OpenDAP) and to register to the service. IPython notebook examples are also available.

1. What are LSA SAF Data Records
LSA SAF Data Records correspond to LSA SAF products reprocessed with the best version of its equivalent NRT products. Currently these data records cover the period 2004-2015.

2. Are Data Records (Reprocessed LSA-SAF data for the period 2004-2015) available for all LSA SAF products?
The LSA SAF products that are currently available as Data Records can be conferred in the Data/Products family pages.

3. How can I have access to LSA SAF Data Records?
See Data Acess

1. I can't open the products because they have a .bz2 extension. What should I do?

All products are compressed, to save storage space and network bandwidth. To decompress them you should use the bzip2 application available here.

2. How can I open and visualize LSA-SAF products in my computer?

To open our products you can use HDF Viewer , Panoply, Ncview.

3. LSA-SAF EPS Products are hard to decode with HDF Viewer and Panoply. Is there an alternative to these two?

Yes. The European Space Agency has developed SNAP and we recommend it to open EPS products. Tutorials are available here.

4. I don't know how to determine the latitude and longitude for each pixel in the LSA-SAF images.

The latitudes and longitudes are specified in HDF5 auxiliary files, which can be found at the "User Support/Auxiliary Data". Furthermore, you can use the MSG Geolocation Routines available at "User Support/Auxiliary Tools".

5. When does the MSG satellite start doing a full-disk scan of our planet?

A full-disk scan starts at the designated timeslot of a product. Timeslots vary between LSASAF products. 
For example, the temporal frequency forLand Surface Temperature production is of 15 minutes, whilst Daily Surface Albedo has a temporal frequency of 1 day.

6. What is the acquisiton time for each MSG satellite full-disk scan?

The acquisition time for the satellite to do a full-disk scan is of 12 minutes.

7. Can I get precise time information for when the satellite scanned a particular region of our planet?

In case you need this information, please contact the LSASAF Helpdesk.

1. How can I contact LSA-SAF directly?

Please submit your messages to helpdesk.landsaf@ipma.pt.

If you want to reach us by phone, dial the number +351 218447124.

The quality monitoring of the LSA SAF production can be found in the Operational Semester report : User Support > Documentation > Operations Documentation > OSR

The Service Status provides an overview of the processing and dissemination status of all tasks in the operational chains. In case of at least one is not OK, the service status appears in red. Right click on the gray area with selected region (MSG/Metop-b/MSG-IODC) and then select Open Link in New tab. Here you will find which product/timeslot(s) are really failing in the processing chains.