Rządowy projekt ustawy o ratyfikacji Konwencji w sprawie ustanowienia Europejskiej Organizacji Eksploatacji Satelitów Meteorologicznych (EUMETSAT), sporządzonej w Genewie dnia 24 maja 1983 r.

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Annex I Chapter D


2.5
MSG Ground Segment will comprise the following functional elements:


a)
satellite and mission control facilities,


b)
image processing and dissemination facilities,


c)
meteorological product extraction facilities,


d)
a central archive.


3
PHASE A CONTENT


Therefore, in 1991 phase A activities should concentrate on the definition of

3.1
a baseline SEVIRI with the set of channels which has been defined by SGATC and STG
as meeting Council requirements stated in EUM/C/Res.XXIII,

3.2
a baseline MCP with raw data downlink and preprocessed data dissemination using the
same frequency bands as MOP,

3.3
the complementary payload, after review of a call for ideas,

3.4
meteorological data and products to be disseminated,

3.5
ground segment architecture concepts,

3.6
the legal framework.


4 OUTLOOK


The results of a System Concept Review, to be carried out at completion of Phase A, will
allow Council to take a decision on the extension of this programme to a Phase B.


Phase B will refine and review the concepts studied during Phase A and will lead to the
final definition of the system and its architecture.


At the end of Phase B, a decision on the full programme proposal will be considered.
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Annex I Chapter E


CHAPTER E

METEOSAT SECOND GENERATION PROGRAMME

SYSTEM DESCRIPTION AND IMPLEMENTATION PLAN

1 MISSIONS


The Meteosat Second Generation (MSG) Programme will provide for the development,
demonstration and operation of a new system of geostationary meteorological satellites.
This system will be designed for the continuation and upgrade of meteorological
observations from the geostationary orbit over Europe and Africa and adjacent oceanic
areas after the end of the Meteosat Transition Programme (MTP), from 2001 utnil 2012.
Accordingly, the following missions have been defined.


a)
The Multispectral Imaging Mission



The multispectral imaging mission will exploit atmospheric windows to provide
images of clouds and land/sea surfaces. The use of a radiometer with channels
having spectral characteristics similar to those of the AVHRR flown on the US
polar orbiting satellites is required for consistency, with the advantage of more
frequent observations.


b)
The Air Mass Analysis Mission



The air mass analysis mission will be used to monitor the thermodynamic
characteristics of the atmosphere. The additional spectral channels to be used
will be responsive in the water vapour, carbon dioxide and ozone absorption
bands. Their spectral characteristics have been selected based on experience
gained in Meteosat and GOES-VAS operations.


c)
The High Resolution Imaging Mission



The high resolution visible imaging mission will be used to monitor small scale
features such as convective cloud evolution, with a resolution at nadir of
approximately 1 km. It will use a channel in the same visible band as the existing
Meteosat.
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d)
The Product Extraction Mission



The product extraction mission will derive meteorological and other products
from the basic imagie data. Its outputs will provide information pertinent to
products such as:

- winds,


-
sea and land surface temperatures,


-
air mass instability iny indices,
- cloud
description,
- fog,
- albedo,
- vegetation
indices,
- precipitable
water,


-
tropopause height and structure,


-
climate data sets, etc...



It will rely on the existing expertise within EUMETSAT Member States.


e)
The Data Collection Mission



The data collection mission will continue the collection of environmental data
from data collection platform.


f)
The Dissemination Mission



The dissemination mission will provide image data and meteorological data to
the user community. A primary objective of the mission is to deliver selected
image data for nowcasting within a few minutes of the end of acquisition of each
image, because the timeliness of data delivery is of the utmost importance.
Access to dissemination links will be controlled through the employment of
encryption schemes by EUMETSAT.



The dissemination mission will operate in two distinct modes:



i)
a High Rate Information Transmission (HRIT) mode, disseminating at
least the full set of image data on the European area and a reduced set on
the southern part of the Earth disk, together with other data, to major
users and to product extraction centres having access to the appropriate
receiving stations.



ii)
a Low Rate Information Transmission (LRIT) mode, disseminating a
reduced set of image and other data, to users operating lower cost
receiving stations.



The Meteorological Data Distribution (MDD) Mission and the Data Collection
Platform Relay Service (DCPRS) of the first generation Meteosat programmes
will be integrated with the MSG dissemination mission.
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g)
The MSG system may support additional operational or research missions not
affecting the performance of the main missions, provided they do not have a
significant impact on overall system complexity and that all additional costs are
borne by third parties. Such missions could include a Search and Rescue support
capability and/or a dedicated instrument for monitoring components of the Earth
Radiation Budget.

2
THE MSG SYSTEM

2.1 Space
Segment


The space segment of the Meteosat Second Generation system will be based on a series
of three spin-stabilised satellites of an advanced design with the following payload:


a)
The Spinning Enhanced Visible and Infra-Red Imaging radiometer (SEVIRI),
supporting the multispectral imaging, air mass analysis and high resolution
visible imaging missions. The SEVIRI will use 12 channels, as follows:



-
seven imaging channels within the visible band and the infra-red
windows,



-
four channels to measure infra-red emissions within the water vapour,
carbon dioxide and ozone bands,



-
one broad band visible channel at finer spatial resolution.



The sampling distance of the SEVIRI will be 3 km at sub satellite point, except
for the broad band visible channel, for which it will be 1 km. Full Earth images
in all these spectral channels will be produced at 15-minute intervals.


b)
The Geostationary Meteorological Communication Payload (GMCP), supporting
the data dissemination and the data collection missions.


c)
Additional payloads (to the extent that these can be accommodated without
significant impact on satellite size or complexity and at no cost to EUMETSAT),
such as a small Scientific Instrument and/or a Geostationary Search and Rescue
(GEOSAR) transponder.

2.2 Ground
Segment


The Meteosat Second Generation ground segment will consist of a network of ground
based facilities, established with the need of long term continuity in mind, with a central
node located at the EUMETSAT Headquarters.

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2.2.1 EUMETSAT System Ground Segment


a)
A Primary Ground Station (PGS), under the control of the satellite operator
(EUMETSAT), for the acquisition of telemetry and raw instrument data and for
the support of general system operations.


b)
A Back-up Ground Station (BGS) for emergency command operations, which
could be co-located with an SGS or located at a station with existing satellite
control functions.


c)
One or more Support Ground Stations (SGS) to be used for the acquisition and
pre-processing of data from other meteorological satellites and their relay to the
Central Facility.


d)
A Central Facility at the EUMETSAT Headquarters, for satellite and mission
control, as well as for processing the raw image data from the satellites into level
1.5 data to be made available to users, and including three main functional
elements:



i)
Satellite Control Centre (SCC),


ii)
Mission Control Centre (MSS),


iii)
Data Processing Centre (DPC) in support of the imaging missions and
data circulation.


e)
A MSG Archive and Retrieval Facility (MARF) for the long-term archive and
retrieval of the image data, and some meteorological products. The configuration
and location (which may be distributed) are to be determined.

2.2.2 EUMETSAT Applications Ground Segment


The applications ground segment will include all the ground infrastructure involved in
product extraction from image data:


a)
A Meteorological Products Extraction Facility (MPEF) shall be established in the
EUMETSAT Headquarters and shall perform centralized control and
management tasks to achieve control over the availability of agreed key products
as well as those mature processing tasks which are not strongly dependent upon
user interaction. Typically the tasks of the MPEF will consist of the operational
production at synoptic scale (grid size around 100 km) of products such as wind
vectors and (multipurpose) cluster analyses based upon multi-spectral processing
of the complete image data, as a basis for products mentioned in paragraph 1 d).
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