1. Carbon Actions for WGCV
K. Thome
NASA
WGCV Plenary # 44
EUMETSAT, Darmstadt, Germany
August 28-31, 2018

2. Reminder that many of our LPV-related carbon actions are related to the CEOS Work Plan CARB-16
CARB-16: Cal/Val and
production of biomass products from CEOS missions
Q4 2019
Development of a coordinated cal/val strategy across NASA and ESA biomass missions that rationalizes protocols, data sharing, and the establishment of ground-based carbon super-sites
NASA
ESA
That action has fed to an additional CEOS Work Plan item CV-19
And there is still CV-18 related to GHGs that ACSG is taking lead
CV-19: Biomass validation protocols
Q2 2020
Development of an initial set of guidance for validation of biomass products using near-term missions such as NISAR, GEDI, and BIOMASS
WGCV

3. Start with a possible closure item first
WGCV-CA-17
Develop an inventory of existing protocols and definitions for products, validation, and intercomparisons and collate those publications from WGCV members documenting the traceability and protocols of satellite data uncertainty assessment.
CARBON-26
CARBON-27
COULD BE FEASIBLE TO CLOSE THIS ACTION
Discuss within WGCV-44 to determine whether current LPV web site for LAI and LST is sufficient for this action
Will be closed at end of WGCV44

4. CV-19 also covers several of WGCV Carbon Actions
These were discussed in some detail during the July 24 telecon
Key outcome is that clarifications are needed on many of the Biomass actions
Additionally, many should wait until the end of the year after a draft protocol will be available #
Description
Relevant carbon actions
Assignees
Due Date
WGCV-CA-05
Identify those CEOS entities and members of carbon user community already supported by WGCV’s development of traceable validation information.
CARBON-31
ACSG, LPV, and IVOS Chairs
Biomass actions pending activities related to draft biomass protocols under development within LPV
WGCV-CA-11
Document list of relevant in situ reference data sets (to be clarified) and networks for carbon variables covered by WGCV highlighting those sites suitable for automatic subsetting of satellite sensor data
CARBON-07 CARBON-09
WGCV-43

5. WGCV Carbon Actions related to the biomass work plan items#
Description
Relevant carbon actions
Assignees
Due Date
WGCV-CA-06
Provide WGISS with LPV validation framework for advice on adherence to CEOS data protocols of WGCV standardized, documented, traceable validations.
CARBON-27
Should already exist for LAI Process
WGCV-CA-09
Recommend approach for coordinating inputs from multiple organizations to develop definitions for products, validation success, etc. that are suitable across the range of WGs and VCs based on the process developed for LAI, where a common definition was accepted by GCOS, GTOS and CEOS.
CARBON-14
CARBON-22
Straightforward solution through a chart package
Generalized version of the LAI method for defining protocols and writing document
WGCV-CA-13
Document process used for current selection of LPV supersite selection (serving for multiple variables) and validation sites specific to single variables for automated subsetting
CARBON-32

6. WGCV Carbon Actions related to the biomass work plan items#
Description
Relevant carbon actions
Assignees
Due Date
WGCV-CA-19
Develop protocols for selecting variable-specific validation sites and validation super sites
CARBON-38
Should follow naturally form WGCV-CA-09
WGCV-CA-23
Identify a list of candidate products to be used for development of protocols/benchmarks for maturity matrix.
CARBON-32
ACSG, LPV, and IVOS Chairs
WGCV-CA-26
Identify and select a specific Carbon variable as a means to evaluate the suitability of test sites for validating the variable.
CARBON-07
ACSG activities on GHG will cover this naturally
Could be an LPV or AGCSG related activity

7. Additional actions were assigned at WGCV-42 to lead toward significant progress on the Carbon Strategy Actions while others were those that included collaboration with other CEOS entities #
Description
Relevant carbon actions
Assignees
Due Date
WGCV-CA-24
Collaborate with WGISS to determine the list of those current data products for which subsets are automatically derived for intercomparison activities
CARBON-33
USGS (Stensaas) and NASA (Roman)
Pending activities with WGISS based on joint WGISS/WGCV actions from WGCV-43
Can rely on LPCS as example

8. WGCV-CA-03
Identify WGCV representatives to participate in SIT-related carbon meetings.
CARBON-38
WG-Climate is caring abou the Carbon actions
Discuss at WGCV-44 to determine what CEOS meetings make most sense and whether DLR activities within WG-Climate meet this role
Agreed that WGCV member attendance at WG-Climate meetings satisfies the above action
WGCV-CA-07
Provide SIT with methods to assign digital object identifiers (DOI’s) to intecomparison exercises.
CARBON-27
Determine an approach to gain closure of this quickly. Use ACIX report as a means to propose a protocol for DOI assignment. An excellent way to get DOI assignment is through require peer review publication

9. #
Description
Relevant carbon actions
Assignees
Due Date
WGCV-CA-28
Define approaches for intercomparison of satellite products and in situ validation of Carbon products based on current LPV activities related to exercises for LAI, FAPAR and soil moisture.
CARBON-22
CARBON-33
LPV vice chair
WGCV-43
WGCV-CA-21
Identify key Level 1 and 2 carbon data products, carbon time series products, and ocean carbon-relevant products that are related to WGCV noting their associated WG/VC (if applicable) and assigning the products to the most relevant WGCV Subgroup and noting availability of Level 1 ATBDs for key Level 2 products. Provide the results of study to SIT
CARBON-05
CARBON-07
CARBON-14
CARBON-26
CARBON-34
WGCV and IVOS chairs
Pending splinter meeting at WGCV-44 between IVOS Chair and WGCV Chairs

10. Longer term
Some of the remaining actions include those that are collaborative with other CEOS entities
WGCV-CA-04
Identify WGCV representatives to work with WGISS to identify joint Carbon workshop opportunities.
CARBON-38
Need to determine whether this is a WGCV or subgroup person
And whether it can be paired with existing meetings
WGCV-CA-10
Determine appropriate methodology for treating validation of ocean-carbon relevant products within WGCV organizational framework.
CARBON-14
Concrete path forward should result from efforts on CA-21

11. Longer term
Remaining items have broader areas of applicability and includes those have relevance to ARD and interoperability in general #
Description
Relevant carbon actions
Assignees
Due Date
WGCV-CA-01
Develop list of completed and planned intercomparison excercises relevant to Carbon Plan
CARBON-27
Sooner is better than later and it can be readily updated if this is done via the website
WGCV-CA-08
Develop draft recommendation of terminology related to uncertainty measures (e.g. temporal and spatial characterization of uncertainty measures)
CARBON-22
Fits within site definition discussion and draft terminology should be straightforward

12. #
Description
Relevant carbon actions
Assignees
Due Date
WGCV-CA-12
Document approach to ensure updating of reference data as time series expand, including collaboration with in situ networks for the validation of carbon variables to ensure temporal continuity and addressing spatial gaps in in-situ networks
CARBON-07
LPV
Supersite selection process at Validation Stage 4 is an approach
Requires clarification of meaning of "reference data." LPV activities currently address this for data products in general

13. #
Description
Relevant carbon actions
Assignees
Due Date
WGCV-CA-14
Determine best method to distribute the methodologies and criteria for globally representative site selection documented in the framework of the BELMANIP validation data set for LAI, and recently in a EUMETSAT project (ALBEDOVAL 2) for albedo validation
CARBON-32
Web-based distribution approaches and/or peer review through LPV or WGCV sites
WGCV-CA-16
Develop list of projects making use of maturity matrix metrics (for example: European Commission CORE-CLIMAX, QA4ECV projects) to identify possible adaptations to Carbon actions.
Should be straightforward

14. #
Description
Relevant carbon actions
Assignees
Due Date
WGCV-CA-29
Develop draft list of ancillary data dependencies needed to ensure consistency across individual products and variables for datasets relevant to carbon cycle community needs (e.g., land cover, aerosol, cloud, DEM, reanalysis products, etc.)
CARBON-26
Goal of this action is at the basic level. Can be expanded later but should be closed prior to expansion of effort
WGCV-CA-30
Provide list of validation data providers that met each of the LAI required data quality metrics.
CARBON-32
Should be sgtraightforward

15. 2018 CEOS Work Plan related actions for GHGs
WGCV CEOS Work Plan item for GHGs is also related to other WGCV Carbon Actions
WGCV-CA-20 will be addressed through the ACSG efforts discussed during WGCV-44 and as part of the ACSG reorganization
WGCV-CA-20
Develop protocols for intercomparison of a selected carbon time series data product produced from multiple sensors as a test bed for protocol development for broader range of data products including backward compatibility of reference data
CARBON-05
Discuss within WGCV-44 to determine best approach in collaboration with AC-VC, WGCV, and ACSG

16. 2018 CEOS Work Plan related actions for GHGs
WGCV CEOS Work Plan item for GHGs is also related to other WGCV Carbon Actions
Two actions are lagging in completion related to the work plan item but will receive appropriate attention based on discussions at WGCV-44
WGCV-CA-15
Identify sensors providing time series carbon products, especially those part of the AC-VC for providing CO2 and CH4 products.
CARBON-05
CARBON-20
ACSG chairs
WGCV-43
WGCV-CA-27
Develop list of reference standards for CO2 and CH4 products that are suitable for intercomparison
Kuze and ACSG chairs
WGCV-CA-25
Validate a selected time series product using protocols developed for intercomparison of the product produced from multiple sensors
Will work with ACSG to define a possible path forward on this action