Introduction to the EPS Product Guides
Welcome to the EPS Pre-launch Product Guides page. As a potential
user of EPS products, you will find here the available EPS Product Guides, generated
at this stage to help you get familiar with the EPS instrument package, the
data processing, end-product contents and format and potential usage and applications.
Status of availability of EPS Product Guides
Product Guides evolution and configuration control
General structure of the Product Guides
Several sections are included in all Product Guides:
An Introduction defines which products
are going to be addressed. Generally, the Product Guides are intended to
cover products generated in the EUMETSAT EPS Core Ground Segment, which
consist of up to Level 1b for ASCAT, GOME, GRAS and AVHRR/3 and up to Level
2 for ATOVS and IASI. The EUMETSAT Satellite Application Facilities take
the processing to higher levels for several of the EPS instruments, and
in that case the relevant SAFs are introduced and a pointer to their corresponding
information pages and/or help desks is also given.
A list of Reference Documentation is
given for each Product Guide, including the source of the information or
in some cases recommended further reading.
- Product Configuration History is then introduced. The contents
of this section will be available as soon as the products become operational.
A Product Overview section then follows,
including a wide overview of the relevant instrument(s), the data processing,
available products, general product contents and a summary of potential
applications. This section is intended to introduce the products to potential
users and to help the users to choose which product is more relevant for
A section of EPSView is included here
to introduce how the EPSView tool can be best exploited to get familiar
with the products addressed in this particular guide.
An overview of the Product Formats and Dissemination
intends to tell the user how to get the data, which dissemination means
are available and in which formats the products are available. An introduction
to the different formats is here included, including EPS Native, HDF5 and
WMO formats. Note that different formats do not always include the same
structure/information for a product. The product structure/contents of the
EPS Native format is here given in detail, and the other formats are described
in relation to it. The format description in this section is limited to
product sections. Further dissection of the products down to field and even
bit level is offered in several Annexes of each Product Guide.
A detailed account of the product Processing
Algorithms is given here. At this stage, this section has not yet
been developed for any of the Product Guides, but a reference is given to
the appropriate Product Generation Specification documents.
Product Validation is then addressed,
highlighting the product validation activities, methods and conclusions
on accuracy for a given operational product. At this stage, this section
has not yet been developed for any of the Product Guides, but a reference
is given to the appropriate Calibration and Validation plans.
Finally, Product Routine Monitoring
is described and pointers to the location of the latest statistics on product
performance and availability is given. At this stage, this section has not
yet been developed for any of the Product Guides, but a reference is given
to the appropriate Calibration and Validation plans.
Several Annexes complement the main body of information of
each Product Guides. The following are common Annexes to all guides:
- Annex 1 contains a table with a Summary of EPS Products
- Annex 2 contains a brief description of the METOP Operational Orbit
- Annex 4 and 5 introduce in detail the Generic EPS (native) Product
Specific Annexes to each Product Guide include, among others,
a detailed description of the contents and format of the relevant EPS native
product, down to bit level.
The evolution of these on-line Product Guides will be handled
separately for every guide. In the cover page of each guide, a link to a page
describing a history of changes to each section will be included. The dates
of each modified page will be updated consistently with the last modification.
Modifications related to document formatting will not be recorded, only relevant
content changes. Every time a modification is made to a file, a new PDF will
be generated, and only the latest PDF compilation will be accessible to the
user through these pages.