1. Current CCl status report to ICG-WIGOS
Chenghu Sun William Wright
22 Jan 2016

2. Activities of Relevance to WIGOS
CCl (and OPACE 1) structure for Intersessional Period is at
Ongoing activities -
Climate Data Rescue and Climate Data Management Systems
IPET-CDMP
Rapporteurs on observational issues
Task Teams/rapporteurs on:
- statement of guidance for climate;
- voluntary observing networks;
- reference climate stations
We’ll lead off with a description of the achievements and issues of the two work groups, the ET-CDMS and TT-DARE, and apply the template suggested by Tom and Kumar as to what worked and didn’t, separately to these, as they had separate strengths and weaknesses.
We’ll then cover briefly the various representative activities OPACE 1 was involved in, what we supplied and what came out of it, and then briefly describe other activities that we were involved with over the IP.
Finally, we conclude with some thoughts for the future.

3. Climate Data Rescue
ET-DARE continuing as an ongoing activity. Essential to find, secure and digitise/image historical climate records;
ET-DARE includes leaders of major non-WMO players in data rescue/recovery (ACRE, IEDRO)
Prototype I-DARE portal was developed
- white paper and specification produced;
- catalogue of undigitised data holdings
- side event at CG XVII (prototype demo)
Challenge: Sustaining the portal
DP 2: In fact it was decided that a climate version for the WMO Core Metadata profile (which is the Discoverability metadata) was not required, but that work was needed to encapsulate observations and provenance metadata.

4. Climate Data Management Systems
CDMS specifications document published (WMO TD no 1131)
Progress on climate schema for the WMO Core Metadata profile
Open CDMS
Roadmap for Open CDMS
developed
Challenges:
- comms infrastructure in D & LDC;
- training needed in climate data management;

5. IPET-CDMP (Climate Data Modernisation Program)
Established a cross-program ET consisting of several CCl reps and also representatives from CBS, JCOMM, GCOS, WCRP
Emphasis on climate-specific aspects (relevant CDMS specs; better regulation of practices;
A concept paper has been drafted
Close collaboration with WIGOS DM initiative on cross-program issues.
Provisional planning for back to back meetings of WIGOS team and IPET-CDMP in 1st quarter
Challenges:
Large undertaking that may take many years;
Ensuring effective ongoing collaboration.

6. GDMFC Manual Outline 1.Data Archival and Exchange
Guidelines for sustainable archiving procedures;
A standardised cross programme approach to archival and exchange.
2.Sources of data
Ensuring new observation technologies such as AWS produce data in a way that meets climate requirements;
Harnessing remote-sensed data for climate purposes
Guidance on managing data from a range of data providers
Climate/weather/water/marine observations
Model data
Data sourced from organizations other than an NMHS
Environmental, biological, Socio-economic and hazards data
3.Data Management:
Standardisation and update for definitions, terminologies and vocabularies;
Data ingest and extraction;
Data rescue, preservation and stewardship;
Data quality control, assessment and improvement, including an end-to-end approach to quality management;
Management of climate and discovery metadata;
Homogenization of time-series;
Handling gaps in data;
Techniques for aggregation and disaggregation of data;
Developing retention policies for data and metadata;
Identify data sets required to support climate services;
Combining data of differing uncertainty

7. 4.Data Management Architecture. The relative roles of:
Global Climate Data Centres
Regional Climate Centres (Data Management nodes)
National Meteorological and Hydrological Services (climatology entities)
5.Data Management governance
Data management planning and policies
Technical regulations
6.Capacity building platform and infrastructure
Core competencies and responsibilities (of individuals)
Provision of assistance and advice to Members
Training strategies and curriculum
7.Quality Management System
Managing changes to observing systems and processes;
Recording and documenting processes including calibration algorithms;
Publication of datasets
Data policy and licensing
Authoritative versions of data such as Digital Object Identifiers (DOI)
Certification of data sets. Define standard if it does not exist.

8. Rapporteurs on Observational Standards & Practices
A group of experts to address climate observation issues and engage with relevant groups in other domains, e.g. GCW.
Experts to attend relevant meetings (IPET-OSDE, Spice, etc).
Address relevant ad hoc tasks or initiatives such as centennial stations, quality control guidelines, etc
Draft of reference network guidelines completed and being reviewed;
Cg presentation about how to establish Voluntary Observing networks

9. OBSERVATIONS – Rapporteurs, etc
Complete reference networks guidance.
Input and expertise to be provided w.r.t. Centennial stations, RBON, network planning etc.
Continue engagement in climate-related observing systems in marine, global cryospheric watch, etc
Greater engagement with metrology community to ensure forthcoming program meets climate needs
Progress guidance on establishing voluntary observing networks;
Expansion of CocCoRaHS precipitation network to Bahamas and beyond
Re-focus TT-SOGCON (next slide)
DP 1: Coordination needed with GCOS.

10. Other relevant task teams
TT-SOGCON
Rapporteurs on Voluntary Observing Networks
Collaborations with WIGOS on Voluntary observing networks
Guidelines on implementing and maintaining Effective Observing networks for climate services