Regional Inverse Modeling in North and South America for the NASA Carbon Monitoring System - Follow-On

Sha Feng,  Pacific Northwest National Laboratory,  sfeng@pnnl.gov (Presenter)
Tao Zheng,  Central Michigan University,  zheng1t@cmich.edu
Jeffrey Lawrence Steward,  Tomorrow.io,  jeffsteward@gmail.com
Arlyn Elizabeth Andrews,  NOAA Earth System Research Laboratory,  arlyn.andrews@noaa.gov
Lei Hu,  NOAA / CIRES,  lei.hu@noaa.gov
Kenneth James Davis,  The Pennsylvania State University,  kjd10@psu.edu
Michael Dietze,  Boston University,  mcdietze@gmail.com
Christopher A Williams,  Clark University,  cwilliams@clarku.edu
Stephen M Ogle,  Colorado State University,  ogle@nrel.colostate.edu
Grant M Domke,  USDA Forest Service,  grant.m.domke@usda.gov

Under previous efforts, the footprint library for NASA remote sensing datasets such as OCO-2 and NOAA aircraft and tall tower measurements has been updated up to 2018. We have developed strategies to investigate consistency among in situ and remote sensing datasets and for combining in situ and remote sensing data for flux estimation. With geostationary carbon satellites, satellite footprint generation has become nearly impossible due to the expensive computational cost. A new inverse flux estimation strategy is needed to take advantage of satellite measurements in the coming years. This project is to develop a prototype regional Eulerian carbon flux estimation system using a hybrid 4DVar framework to leverage constraints from an increasingly large volume of satellite (i.e. OCO-2, OCO-3, GeoCARB) and in situ CO2 data over North America. An ensemble approach is used to quantify the uncertainty introduced by model transport, prior fluxes, and CO2 boundary inflow, which will be implemented in the flux estimation system instead of prescribing them subjectively. Later we will also conduct a set of continental-scale Observation System Simulation Experiments in preparation for the analysis of data from the GeoCARB mission (recently canceled). To continue serving the footprint needs of the community, we will extend the footprint library to 2020. This project will extensively use NASA satellite and airborne missions, including OCO-2, ACT-America, and NSF and DOE field campaign measurements. We will also use and evaluate NASA model products (e.g., MERRA transport fields and CMS flux products), thus supporting the development of an integrated Carbon Monitoring System. The proposed work will further develop strategies for incorporating diverse CO2 observations into CMS flux products, quantifying fluxes and their uncertainties at policy-relevant scales, and Monitoring, Reporting and Verification (MRV).

Poster Location ID: 2-28

Presentation Type: Poster

Session: Poster Session 2

Session Date: Wed (May 10) 5:15-7:15 PM

CCE Program: Other