Use of Network Infrastructure in Earth Observation

GSCB Workshop #2, ESRIN 18-19 June 2009 G. Buscemi (ESA)

Use of the Network infrastructure for the Earth Observation Community

Electronic circulation of data and auxiliary data

Transfer of planning and M&C data

User access to the EO products catalogues for consulting and ordering

Data dissemination and distribution to EO users (Internet based applications and Satellite dissemination)

Remote access to EO PDGS systems for operation and maintenance

Virtual organization

Data Relay

Example of Network landscape

ODAD ESACOM DDS Ku-band

DDS C-band

LL to FOS

Commercial

Internet

ESA Corporate (hosting Envisat

PDS, ERS-TPM,

User Services)

Envisat PDS (PDS

R1/2/3 routers, PDS FW)

ESRIN (Frascati, IT) x x x x x X x x Kiruna Salmijarvi (Kiruna, SE) x x x x X x DLR Oberpfaffenhofen (Wessling, DE) x x x Infoterra Farnborough (Southwood, UK) x x X x ASI (Matera, IT) x x x INTA (Maspalomas, ES) x x x DLR Neustrelitz (Neusterlitz, DE) x CNES (Toulouse, FR) x Ksat TTS (Svalbard/Tromsoe, NO) x x ESAC (Villafranca del Castillo, ES) x CCRS (Gatineau, CA) x IFREMER (Brest, FR) x ITAV (Pratica di Mare, IT) x INTA station (Maspalomas, ES) x Kiruna Esrange (Kiruna, SE) x Telespazio (Matera, IT) x x FMI-Arc (Sodankylä, Fin)1 x

EO Networks Drivers (1)• Highly Available and robust system (e.g. Availability

of Sentinels GS around 99.5%)

• High level of quality and stability

• Increase of Data Volume– Large distributed archives exploding volume of data

– Increased performance

• Increase of Computation Density– Application growth & diversity

– Blade server technology

• Request of Agility– Organizational responsiveness

– Infrastructure extensibility

EO Networks Drivers (2)

• Heterogeneous environment (User Service, Data Quality, etc)

• Interoperability with National and International partners that challenges the Security

• Stringent timeliness requirements (Near real-time and Emergency Services for crises management)

• Evaluation and Integration of new technology responding to emerging requirements

• More stringent Security Requirements

EO Networks Drivers (3)

In Other words:

More Data

Larger Community (Scientist, GMES, Operational, Industrial and Internal)

Short Delivery Time

Introduction of emerging technology

More efficient and Cost effective

More Secure and Controlled Transactions

An essential commodity service for EO users interactions

EO Networks Load(1)

EO Networks Load (2)

2008-2009

Kiruna

Data flow

EO Networks Load (3)

2009

Kiruna

Data flow

Networks for EO (1)GEANT2 and NRENs

Dark fiber

ESA

PoPRoma Tizii

PoP Roma La Sapienza

PoPFrascati

Lambda

Internet (IP) 1GE link

Dark fiber

Primary access

Secondary access

Networks for EO (2)Private VPNs

ODAD

ComNet

Networks for EO (3)

• Artemis ensures almost 30 % contact time per orbit • Very large data volumes are down-linked through Artemis,

corresponding to ~ 50% of all LBR data and ~ 75% of all HBR data (both recorded and real-time)

KIRUNA

ESA/ESRIN

ENVISAT

X-Band(real time & recorders)Ka

-Band

Ka-Band(real time & recorders)

MATERA

X-Band

MASPALOMAS

ARTEMIS

Data Relay

Networks for EO (4)Satellite Networks- The use of Satellite DDS for ENVISAT

About 60 stations deployed overall

Kiruna

EutelsatW2A

(Ku-band)

AmazonasHispasat(Ku-band)

American coverage

ESRIN

Atlantic Bird 3

(C-band)

African coverage

European coverage

The use of Satellite DDS for ENVISAT• Satellite dissemination extremely effective for delivery of same

set of data to wide (more than 10) users at the same time.• Eumetsat adopted the same concept to disseminate their data.• Fast deployment of new stations.• Extremely flexible in terms of capacity expansion.• Highly secure (encrypted transmission) and independent from

ground infrastructure.• Possibility to implement a full two-way link.

• Current DDS ensures dissemination in Europe, Africa and America of a prescribed set of products (selected MERIS, AATSR, SCHIAMAKY, MIPAS, GOMOS and ASAR data).

Data Repatriation: Antarctica

0

20

40

60

80

100

120

140

0 10 20 30 40 50 60 70 80

Capacity (Mbps)

RA

W R

unni

ng C

osts

(KE)

1a,3a1- Shared infrastructure

1b20,1b40,1b70 - dedicated infrastructure

3a2-20,3a2-40,3a2-70 - dedicated infrastructure

ID Capacity (Mbps) Running Cost per month (K€) Sharing1a 20 43 yes1b20 20 60 no1b40 40 101 no1b70 70 120 no3a1 20 45.3 yes3a2-20 20 56 no3a2-40 40 101 no3a2-70 70 128 no

– Study-activity addressing the repatriation of Antarctica data from thenew TrollSat station under different architecture scenario.

– Infrastructure sharing convenience for Capacity below/up-to 20 Mbps.

– One-off cost saving for station upgrade in the Infrastructure sharing model.

– Similar costs between one European Teleport and two Teleports.

– Additional saving may be achieved by having a Teleport in ESRIN

– The introduction of O’Higgins may reduce the overall costs.

The future EO Network (1)• HiSEEN Next Generation

– Possible Optical Network, Dynamic lightpaths, strong Supporting infrastructure

– 10 Gb is available & affordable for today's datacenter

– Asymmetric and flexible model to cover different needs

– Adaptable topology, specially for relevant projects

• Collaboration & Sharing of resources– Exchange/sharing of resources (e.g Capacity) and

Operational processes (e.g. NOC)

• Virtualization (Virtual Archive, Virtual routers, eNOC, etc.)

– Architectural approach for the provision of virtual networks on a shared infrastructure

– Utilization of CDN and Cloud Computing

The future EO Network (2)• Increase of interoperability in multi-domain

environment

• Security– Alignment of the EO PDGS with the new ESA Security

Directives

– Improvement of Confidentiality & Integrity of information

– Introduction of Single-Sign-On infrastructure

– Improve of Operational efficiency (new Esacert)

– Federation (Trusted third party based on ID federation)

• DDS-2G (Second Generation)– Use of newer satellite technologies (e.g. DVB-S2 ACM)

– Exploitation of 2-way system for disadvantaged areas

Conclusions• Network is a critical element of EO infrastructure:

– Unique vehicle to support community specific distributed infrastructure

– Integration of different Earth Science data sources

– Implements the majority of security mechanisms

• The Network provides a common support interface for European and global organizations (essential for EO Global connectivity)

• A combination of Ground and Satellite Networks can support the upcoming EO Missions

• Network move towards a service oriented model (e.g. GN3)