The concept of Essential Variables (EVs) is increasingly used in Earth observation communities to identify those variables that have a high impact, high feasibility and relative low cost of implementation. The community of GCOS was the first to develop a full set of Essential Climate Variables (ECV). Other examples of communities applying the same concept are oceans (EOVBluePlanet), biosphere (EBV-GEOBON), water cycle (GEOGLOWS), etc. ConnectinGEO illustrated that EVs can be a useful approach to several indicators to monitor SDGs. ERA-PLANET GEO-Essential proposes a need to review and extend the current EV framework and a priority assignment in designing, deploying and maintaining EV in connection with the responsible observation networks. At the same time, EVs should be promoted among all SBAs in GEO. The GEO-EVs Community Activity aims to be a panel of experts to discuss about the current status of the EVs, exchange knowledge, experiences and methodologies in EVs definition, analyse the usefulness of some of them in creating SDG indicators and the gaps to be solved in communities in the near future. This Community Activity does not have the intention to interfere in the on-going communities already working on the definition of the EVs, but to become a common point to share expertise and to have a single voice inside GEO regarding EVs.
Planned activities
Meta-coordination in the elaboration of EVs among SBAs. Reduce the overlapping already between existing between and future EVs. Shared knowledge and processes for EVs definition.
Gap analysis of EVs and observation networks.
Convergence on the definition of EVs across SBAs.
Expand EVs to all relevant themes in Earth Observation.
Relation between EVs and SDGs. Further analyse the approximation of SDGs indicator’s retrieval based on the use of EVs as a proxy.
Monitor the evolution of the EV definition in different domains. Detect gaps and overlaps.
Recommend to consolidate the EV in the SBAs that has not completed a consolidated list of EVs.
Generate a roadmap to generalize and complete the definition of EVs to other EO communities to have a full description of the status and trends of the Earth System. This roadmap is based on the knowledge of the process on defining EV's.
Ensure that all the relevant SDG indicators are covered by the existence of future EVs framework and other policy frameworks and GEO engagement priorities.
Collecting the definitions of the spatial and temporal resolutions of EVs for different scopes.
Serve as a forum to exchange experiences, best practices, and knowledge about EVs.
Outputs
GEO community activity report: Mainstreaming EVs across GEO
The objective of this report is to encourage each GEO community to share, improve or start their developments on EVs and to adopt a coherent common framework. Experts from every GEO Societal Benefit Areas (SBAs) describe the level of development of EVs in their field. The relationship with transversal policy needs is analyzed from different angles. Data and research gaps are discussed and ways forward are suggested. A common set of criterias to define EVs is put forward. A recommendation is made for a better alignment of EVs with the GEO Data Sharing Principles as well as the FAIR principles (Findable, Accessible, Interoperable and Reusable). In this respect, solutions to make EVs more visible on the GEO platform are proposed. The target readership of this report is therefore all members of GEO and the Earth Observation (EO) community more generally.
Special Issue on International Journal of Digital Earth
Towards integrated Essential Variables for Environmental Sustainability
Essential variables for air quality estimation Andrii Shelestov, Andrii Kolotii, Tatiana Borisova, Olena Turos, Gennadi Milinevsky, Igor Gomilko, Tatyana Bulanay, Oleg Fedorov, Leonid Shumilo, Liudmyla Pidgorodetska, Liudmyla Kolos, Arsenii Borysov, Natalia Pozdnyakova, Alexander Chunikhin, Marina Dudarenko, Arina Petrosian, Vassyl Danylevsky, Natalia Miatselskaya & Vasyl Choliy
Developing food, water and energy nexus workflows Ian McCallum, Carsten Montzka, Bagher Bayat, Stefan Kollet, Andrii Kolotii, Nataliia Kussul, Mykola Lavreniuk, Anthony Lehmann, Joan Maso, Paolo Mazzetti, Aline Mosnier, Emma Perracchione, Mario Putti, Mattia Santoro, Ivette Serral, Leonid Shumilo, Daniel Spengler & Steffen Fritz
New interested members to be added to the Activity
Communication channels: teams, slack, others?
AOB
ODOK and the GEO Symposium 2023
Coordination meeting on EVs between GEO-MOUNTAINS, GEO-EV and ArcticGEOSS
When: 14 June 2023, 10:30-12:00 CEST
Where: At the venue coffee break
Coordinator: Ivette Serral (CREAF)
Participants: Ivette Serral & Joan Masó (CREAF), Jan Rene Larse (AMAP), Carolina Adler, James Thornton & Gregory Giuliani (CDE), Elisa Palazzi (University of Torino)
Agenda:
Joint interest in defining key variables and observables, that have a perspective beyond the standard essential variables.
Share experiences on how we each develop and define key variables and observables.
Next steps
Coordinate an event during the next GEO Week.
Carolina will have a conversation with the GEO Secretariat if there would be a slot/room for this.
Carolina and Jan Rene will talk with WMO this week and will mention this initiative
GEO Virtual Symposium 2021
Generalizing the concept of the Essential Variables
Wednesday 23 June 2021, 18:30-19:30 CEST
The EV concept, which started from the climate domain, has naturally spread to other topics and is now partially implemented across GEO activities mostly in the Earth system side and less so to monitor socio-economical activities. Future work is needed to converge towards a common definition and implementation of EVs across GEO topics. EVs can help monitoring the entire socio-ecological system of the Earth, providing the necessary basis for interdisciplinary approaches such as the ecological footprint, planetary boundaries, disaster risk reduction, and nexus frameworks. We have the potential to bring all the necessary information at the fingertips of decision-makers at all scales and we should increase our efforts to gain time in the search for mitigation and adaptation solutions. The aim of this session is to build on the discussion from last year’s symposium and explore where progresses can be made in the field of Agriculture, Water Geology, Health and SDGs.
More information
GEO Virtual Symposium 2020
Monitoring Essential Variables
Friday 19 June 2020, 13:00-14:30 CEST
The concept of Essential Variables (EVs) has been increasingly used in Earth observation communities to identify those variables that correspond to high impact on the Earth system and should be a priority for monitoring. This session is aimed to take a horizontal perspective on the good practices and lessons learned on how the various sets of EVs are developed, accepted and used by their respective communities.
More information
GEO Week 2018, Tokio
Can we have a GEO Initiative on a common approach to Essential Variables?
Monday 29 October 2018, 08:30-10:00 CEST
The concept of Essential Variables (EVs) is increasingly used in Earth observation communities to identify those variables that have a high impact, high feasibility and relative low cost of implementation. The community of GCOS was the first to develop a full set of Essential Climate Variables (ECV). Other examples of communities applying the same concept are oceans (EOV), biosphere (EBV), water cycle, etc. ConnectinGEO illustrated that EVs can be a useful approach to several indicators for monitor SDGs. ERA-PLANET GEO-Essential proposes a need to review and extend the current EV framework and a priority assignment in designing, deploying and maintaining EV in connection with the responsible observation networks. At the same time, EVs should be promoted among all SBAs in GEO. In this event we will invite a panel of experts to discuss about the current status of the EVs, the usefulness of some of them in creating SDG indicators and the gaps to be solved in communities in the near future. Finally, we will define a roadmap to create a new community initiative about EVs in the future GEO work program.
More information