Presentation by Samuel Almond, ECMWF, at the Data Science Symposium, during Delft Software Days - Edition 2019. Thursday, 14 November 2019, Delft.

1. Copernicus Climate Change Service:
Empowering the policy, business and the
adaption communities
Climate Change Samuel Almond, the C3S team & Contractors
ECMWF

2. Climate
Change
T h e C o p e r n i c u s C l i m a t e C h a n g e S e r v i c e a n d i t s m i s s i o n
Support European climate
adaptation and mitigation
policies by:
• Providing consistent and
authoritative information
about the climate
• Building on existing
capabilities and
infrastructures (ESA
CCI, CMIP, …
• Stimulating the market
for climate services in
Europe

3. Climate
Change
W h a t t h e C l i m a t e C h a n g e S e r v i c e h a s t o o f f e r
• Open and free access to climate data
• Tools needed to use the data
• Information on sectoral impacts
• Quality assurance
• User support and training
• Climate change assessments
• Outreach and communication
A one-stop Climate Data Store

4. Climate
Change
Climate reanalysis: ERA5
• Atmosphere/land/wave parameters
• 31 km global resolution, 137 levels
• Hourly output from 1979 onward
• Using 2016 ECMWF forecast system
• Using improved input observations
• Ensemble data assimilation method
• Uncertainty estimates for all variables

5. Climate
Change Aim: Generate seasonal forecast products based on the best information available, to an
operational schedule, and make them freely publicly available.
S e a s o n a l f o r e c a s t s
Horizontal grid: global 1deg x 1deg
Ensemble size:
• Forecasts: ~50 members
• Hindcasts: ~25 members x 24 years (1993-2016)
Variables
• Surface
• 7 vars every 6h
• +30 vars every 24h
• Pressure (11 levels, from 925 hPa to 10 hPa)
• 8 vars every 12 h
Agreed NetCDF specification C3S-0.1 (based on CF)

6. Climate
Change
Climate projections
Providing users with timely access to climate change scenarios
produced with state-of-the-art climate models (CMIP, CORDEX)

7. Climate
Change
The Climate Data Store - The ‘Catalogue’
• The Catalogue – is a list of climate
data products
• The catalogue supports data
discovery and processing
• Functions:
• Faceted search
• List datasets
• Search result can be sorted and
filtered
• Anyone can browse the catalogue,
but only registered users can
download the data!

8. Climate
Change
E v a l u a t i o n a n d Q u a l i t y C o n t r o l ( E Q C ) f u n c t i o n
Quality of data
• Assessments
• User guidance
• Gaps and limitations
Quality of tools
• Fitness for purpose
• Best practices
Quality of service
• Speed, responsiveness
• System availability, …
data quality

9. Climate
Change
Transforming data into useful information products
Quality assured information and tools for
scientists, consultants, decision makers.

10. Climate
Change
Transforming data into useful information products
Quality assured information and tools for
scientists, consultants, decision makers.

11. Climate
Change
Climate Data Store - Concept
CatalogueToolbox
User
Broker
Adaptor Adaptor Adaptor
ECMWF
MARS archive
Website
ftp server
ESGF
Compute
🙂

12. Climate
Change

13. Climate
Change
Climate
Change

14. • To provide practical examples of how C3S in general, and CDS in
particular, can deliver information of relevance to specific sectors.
• To act as benchmarks of good practice.
• To document users needs, and whenever possible address those.
• To develop services on the CDS data & infrastructure, when possible
In particular SIS contracts should develop and make available
sector-relevant indicators and tools that were either unavailable or
inaccessible before.
The Sectoral Information System – ‘Demonstrator climate services’

15. Sectoral
Information
Systems of C3S
➢ practical
examples
➢ benchmarks of
good practice.
➢ To document
users needs,
and address
those.

16. Climate
Change • Co-creation process with user representing crop research, policy development and
commercial agricultural services
• Users champions connect large set of downstream users
C3S Global Agriculture: User champions
Agri-researchAgri-business Agri-policy

17. Coastal SIS- Deltares

18. Climate
Change
Climate
Change

19. Climate
Change
C3S Energy SIS
• Integrating climate and energy
scenarios
• how well prepared our infrastructure is
to cope with the climate of the future?
• Will the renewable dominated energy
mix of the future?
Using a historical data, reanalysis,
seasonal predictions and climate
projections the SIS demonstrates
how will be possible to address some
of these questions through the SIS
demonstrator
Contract led by A. Troccoli WEMC

20. Climate
Change
Climate
Change
Operational Phase
CDS / Toolbox
launched
Previous C3S
GA March 2017
2016 2017 2018 2019 2020 2021
Present
BIODIVERSITY
DRR
Standards & Infrastructure
Application development
Biodiversity
User Cases
Demo Cases
Use Cases
Use Cases
Use Cases
Use Cases
Demo Cases
Demo Cases
Demo Cases
Demo Cases
Evaluation &
Quality Control
SIS
EQC - SIS
Proof of concept

21. Climate
Change
Conclusions
• Copernicus climate change service has developed an infrastructure that should make
simple for users to freely access an unprecedented amount of quality controlled
climate data.
• The climate data store come with a computational layer that will allow users to write
and run their own post-processing routine on the cloud without the need of
downloading huge volume of data.
• The system comes with a series of exemplar applications (SIS) which show how the
infrastructure could be used to address specific user’s problems.
• C3S permits the development of applications to underpin service and policy
development