The ERA-CLIM2 project's work was organized in nine work-packages: WP1 included work aimed at reanalysis production, WP2 included research and development work in coupled data assimilation, WP3 coordinated all the work to prepare the observations for climate reanalysis, WP4 dealt with uncertainty assessment, and WP5 established and manage data access. Project management and coordination activities were the key activities of work packages WP6 and WP9. WP7 and WP8 dealt with outreach and communication activities. All the 66 ERA-CLIM2 reports associated with WP1-9 deliverables can be accessed from this web page.

WP1 (5) deliverables:

• D1.1 (ECMWF) - CERA-20C: An ensemble of global reanalyses spanning the 20th century based on an EDA configuration of the IFS (atmosphere/land/waves) coupled with NEMO (ocean/sea-ice). This deliverable includes gridded data products and observation feedback.

• D1.2 (MERCO) - A global reanalysis of carbon fluxes and stocks using ORCHIDEE and PISCES, based on meteorological and oceanic information from CERA-20C. This deliverable consists of gridded data products.

• D1.3 (ECMWF) - A global reanalysis from 1979 onward based on the IFS (atmosphere/land/waves), coupled with NEMO (ocean/sea-ice). An extension to 1957 will be considered if HPC resources allow. This deliverable consists of gridded data products.

• D1.4 (ECMWF) - High-resolution reanalyses of the land-surface surface based on the CTESSEL and ORCHIDEE land-surface models, using meteorological forcing from CERA-SAT. This deliverable consists of gridded data products.

• D1.5 (ECMWF) - A status report describing progress in CERA system developments needed for production of deliverables 1-4

WP2 (12) deliverables:

• D2.1 (METO) - Documented code with test results for assimilation and bias correction of satellite SST observations, and for assimilation of sparse in-situ SST observations, in NEMOVAR.

• D2.2 (MERCO) - Documented code and test results for sea-ice assimilation in NEMOVAR, based on anamorphosis of control variables.

• D2.3 (CERFACS) - Documented code and test results for using ensemble-estimated background error variances and correlation scales in the NEMOVAR system.

• D2.4 (CMCC) - Report on experimentation with ensemble-based covariances in coupled data assimilation.

• D2.5 (INRIA) - Report on the use of 3D or 4D-Var for the ocean component in the coupled data assimilation context, including a comparison of multi-scale methods in 4D-Var.

• D2.6 (UVSQ) - Report on optimized terrestrial model parameters and carbon fluxes for the 20th century, including requirements for coupling land carbon biogeochemistry in future Earth system reanalyses.

• D2.7 (MERCO) - Report on assessments of alternative methods for coupling ocean biogeochemistry in future Earth system reanalysis.

• D2.8 (UREAD) - Report on strengths and weaknesses of weakly coupled data assimilation methods for Earth system reanalysis.

• D2.9 (METO) - Report on techniques for calculating coupled error covariances from outputs of a weakly coupled data assimilation experiment.

• D2.10 (UREAD) - Report on assessment of coupled-model drift and approaches for obtaining consistent ocean and atmospheric bias corrections.

• D2.11 (INRIA) - Report on fully coupled data assimilation in simplified systems with implications for Earth system reanalysis.

• D2.12 (METO) - A status report to allow early assessment of progress in this work package.

WP3 (20) deliverables:

• D3.1 (UBERN) - A catalogue of additional historical meteorological data available as hard copy, imaged documents, or microfilm

• D3.2 (UBERN) - A prioritised list of data sets to be rescued based on D3.1

• D3.3 (UBERN) - An update of the ERA-CLIM searchable meta database based on D3.1

• D3.4 (UBERN) - Digitised in-situ observations in raw format suitable for reanalysis, catalogued in D3.1

• D3.5 (UBERN) - Digitised in-situ observations catalogued in D3.1, but not included in D3.4.

• D3.6 (UBERN) - Quality-controlled version of D3.4, ready for use in reanalysis

• D3.7 (UBERN) - Quality-controlled version of D3.5

• D3.8 (METO) - RTTOV updates of spectral coefficients as required for all new sensors for which data and filter response is available

• D3.9 (METO) - Report on availability of early satellite data and interpretation of feedback information from reanalysis

• D3.10 (EUMETSAT) - Consistently reprocessed AVHRR polar winds data record (1982-2011) with documentation

• D3.11 (EUMETSAT) - Consistently reprocessed SSM/T2 and AMSU-B/MHS radiance data record (1991-2012) with documentation

• D3.12 (EUMETSAT) - Inter-calibrated radiance data records for Meteosat and for US and Japanese geostationary satellites

• D3.13 (EUMETSAT) - Improved geostationary AMV (Atmospheric Motion Winds) data records retrieved from MFG (Meteosat First Generation) satellite observations

• D3.14 (EUMETSAT) - Consolidated radio occultation data records for Metop A and Metop-B instruments and third-party sources

• D3.15 (METO) - Update to HadISST2 global estimates of sea-surface temperature and sea-ice from 1900-2010, incorporating information from ESA CCI SST and sea ice projects

• D3.16 (METO) - Consolidated ice thickness data for verification purposes, in a common format

• D3.17 (METO) - Update to integrated surface/sub-surface ocean database

• D3.18 (FMI) - Prototype snow data product (Globsnow development product) for reanalysis, with documentation

• D3.19 (FMI) - Quality controlled version of snow data base (in situ) and final version of snow data product (D3.18), with documentation

• D3.20 (METO) - Extension of the global sub-daily station dataset HadISD to include data prior to 1973

WP4 (14) deliverables:

• D4.1 (UNIVIE) - OQA report: bias adjustments for radiosonde temperature, wind and humidity from existing reanalysis feedback

• D4.2 (UNIVIE) - OQA report: updated bias estimates for radiosonde temperature, wind and humidity from new reanalysis feedback and from variational adjustment during reanalysis

• D4.3 (FFCUL) - OQA report: Quality control, break detection and homogenisation for observations supplied by FFCUL

• D4.4 (FFCUL) - OQA report: Documentation of a visualisation tool developed at FFCUL for QC purposes

• D4.5 (RIHMI) - OQA report: QC for upper-air, surface, and snow observations

• D4.6 (UBERN) - OQA report: methodology for quantifying observation error and representatively error

• D4.7 (DWD) - RQA report: Assessment of precipitation estimates from reanalysis and gridded GPCC products spanning the 20th century

• D4.8 (UNIVIE) - RQA report: Assessment of the global energy, water, carbon cycles in reanalysis

• D4.9 (RIHMI) - RQA report: Assessment of upper-air temperature, humidity, geopotential height, and wind estimates from reanalysis

• D4.10 (ECMWF) - RQA report: Inter-comparisons with other global reanalyses from ECMWF and elsewhere

• D4.11 (ECMWF) - RQA report: Assessment of low-frequency variability and suitability for climate monitoring

• D4.12 (UVSQ) - OQA report: Assessment of uncertainties in input parameters used for estimates of carbon fluxes and stocks

• D4.13 (UVSQ) - RQA report: Confidence intervals on net and gross carbon fluxes through the surface as well as above and below ground carbon reservoirs for major ecosystems

• D4.14 (ECMWF) - RQA report: Comparison of CTESSEL and ORCHIDEE carbon flux estimates in the satellite period

WP5 (3) deliverables:

• D5.1 (ECMWF) - Technical developments in MARS to support archiving and retrieval of data in NetCDF format. This is needed to allow use of MARS for the ocean component of the coupled reanalysis output

• D5.2 (ECMWF) - Implementation of public data services for gridded output from coupled climate reanalyses (CERA), including the ocean component

• D5.3 (ECMWF) - Report on data services usage and requirements for climate reanalysis

WP6 (8) and WP9 (4) deliverables:

• D6.1 (ECMWF) - A project website with information about the project objectives and outcomes, intended for the public at large

• D6.2 (ECMWF) - A policy brief based on project outcomes and activities

• D6.3 (ECMWF) - Report on ERA-CLIM2 Workshop on Observations for Earth System Reanalysis

• D6.4 (ECMWF) - A brochure describing the project and its outcomes, intended for a general audience

• D6.5 (ECMWF) - A policy brief based on project outcomes and activities

• D6.6 (ECMWF) - Report on ERA-CLIM2 Workshop on Coupled Data Assimilation for Earth System Reanalysis

• D6.7 (ECMWF) - A policy brief based on project outcomes and activities

• D6.8 (ECMWF) - A plan for dissemination of project results during the course of the project

• D9.1 (ECMWF) - A coordination plan will be prepared by the coordination team to detail the specific actions to be undertaken by the projects. It will be maintained and updated during the life time of the projects. This plan will cover also the optimal arrangements for data exchange and data services to be developed as part of each project (in accordance with the DoWs).

• D9.2 (ECMWF) - A common web page with links to the individual project websites will be created and maintained. The system support will be provided within CLIPC WP3. Designated staff from all projects will be able to edit content and upload documents. There will be both public areas and a protected area for exchange of information among the CCCS5 projects.

• D9.3 (ECMWF) - Common lessons learned relevant for the development of the Copernicus Climate Change Service

• D9.4 (ECMWF) - Minutes for meetings as required