barca ch 4 data analysis
DESCRIPTION
BARCA CH 4 data analysis. Flight 3 (17/06/2009) during BARCA Phase B in the wet season covering wetland area of Rio Negro and Rio Solimões. BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena. - PowerPoint PPT PresentationTRANSCRIPT
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
BARCA CH4 data analysis
Flight 3 (17/06/2009) during BARCA Phase B in the wet season covering wetland area of Rio Negro and Rio Solimões
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
BARCA CH4 data analysis
Phase A: only CH4 flask measurements are available; selected flasks have been sent to Utrecht (Thomas Röckmann) for an isotope analysis
Phase B : insitu and flask measurements – flasks are currently being analyzed and selected flasks might also be sent to Utrecht then for an isotope analysis
Comparison of CH4 data to global model output (TM5, TM3, etc.)
Comparison to regional model output (WRF-chem+VPRM-CH4, STILT)
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
Weather Research and Forecast Model
Transport of CO2, CH4 and CO
Stochastic Time Inverted Lagrangian Transport Model
Determination of CH4 sources and sinks
WRF-chem STILTWRF metfields
ECMWF Data
Modeling plans for BARCA Phase A and B
Running WRF with a new module greenhouse gases (chem_opt=98, includes VPRM, wetland-model,plumerise,etc.)for BARCA Phase A and Phase B for CH4, CO2 and CO
STILT runs for CH4 driven by either WRF meteorological fields or ECMWF data
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
WRF Validation
Participation in evaluation and testing of the WRF set-up for the Amazon region (mostly done at INPE)
1. Precipitation/Convection Evaluation of WRF precipitation output against TRMM and GPCP data
2. Radiation Aeronet data available for 2002 (six stations) and 2008/2009 (only Alta
Floresta and Rio Branco) Validation of WRF Amazon setup (lw 1 & sw 2 options) against Aeronet data
for BARCA Phase A and Phase B also interesting for use of VPRM
Solar radiation Rio Branco May 2009
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
WRF runsTagged tracer WRF runs for BARCA Phase A and Phase B for CH4, CO2 and CO to scale different sources in comparison with the observatios
Subroutines for VPRM, wetland model (Kaplan wetland inventory) and termites are combined under the new module_greenhouse_gases (chem_opt=98) which also uses the plumrise mechanism VPRM parameters & preprocessing
Until global fields of CH4, CO2 and CO are available for 2008 and 2009, 5°x5° fields interpolated from NOAA surface stations are used for initial and boundary conditionsCould somebody already provide the NOAA surface station data for May 2009?
The WRF biomass burning preprocessor wrf_chem_prep_source was installed in Jena and biomass burning emissions estimates (including the Modis satellite data) can now be provided on WRF and Lat/Lon grid also in netcdf outputWe would still need the satellite data for May 2009 (WF_ABBA & DSA)
EDGAR 4 data are used for anthropogenic sources – CO data?Importance of vegetation CH4 source and soil uptake CH4 still has to be discussed
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
WRF CH4 flux mapsTermiteWetland 1Wetland 2
CH4 wetland fluxes 1 CH4 wetland fluxes 2
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
STILT runs for BARCA
STILT to provide consistent footprint information -> Source region identification
Fast forward tagged tracer runs for receptors along flight path -> hypothesis testing for different fluxes
Inverse analysis (nested inversion)-> optimal source configuration
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
STILT runs for BARCA Status
Domain set up (-35 -85 Lat Lon south-west, 15 -30 Lat Lon north-east)should be identical to VY domain!
STILT-ECMWF: ECMWF preprocessing for Phase A and B running
STILT-WRF: waiting for WRF fields
Coupling to fluxes:
Biomass burning fields (C. Wiedenmyer (UCAR)) available as ncdf
EDGAR V4 and others used in WRF-chem need preprocessing to cartesian grid
VPRM parameters and fields -> VY domain?
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
STILT runs for BARCA Status
Comparison CO Biomass burning emissions
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
STILT runs for BARCA Status
Comparison CO Biomass burning emissions
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
STILT runs for BARCA Status
Comparison CO Biomass burning emissions
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
O2/N2 from BARCA flasks
BARCA A: 145 flasks sucessfully anaylzed for O2/N2
ArN2 values used for correction of fractionation: O2/N2(corr) = O2/N2 – (ArN2-mean(ArN2))
BARCA Telecon 04-12-2009 MPI for Biogeochemistry Jena
O2/N2 from BARCA flasks - plans
Use STILT to separate contributions to O2/CO2 ratio from different processes
• Respiration /Photosynthesis VPRM fields von VY• Biomass burning (similar signature) C. Wiedenmyer • Fossil fuel Julia’s COFFEE dataset for different fossil fuel types, 1x1 degree