Grantee Research Project Results
2013 Progress Report: Constraining Urban-To-Global Scale Estimates of Black Carbon Distributions, Sources, Regional Climate Impacts, and Co-Benefit Metrics with Advanced Coupled Dynamic - Chemical Transport - Adjoint Models
EPA Grant Number: R835037Title: Constraining Urban-To-Global Scale Estimates of Black Carbon Distributions, Sources, Regional Climate Impacts, and Co-Benefit Metrics with Advanced Coupled Dynamic - Chemical Transport - Adjoint Models
Investigators: Carmichael, Gregory R. , Henze, Daven K , Grell, Georg , Spak, Scott
Institution: University of Iowa , University of Colorado at Boulder , National Oceanic and Atmospheric Administration
Current Institution: University of Iowa , National Oceanic and Atmospheric Administration , University of Colorado at Boulder
EPA Project Officer: Chung, Serena
Project Period: September 1, 2011 through August 31, 2014 (Extended to August 31, 2015)
Project Period Covered by this Report: September 1, 2012 through November 18,2013
Project Amount: $895,432
RFA: Black Carbon's Role In Global To Local Scale Climate And Air Quality (2010) RFA Text | Recipients Lists
Research Category: Climate Change , Air
Objective:
In this project we will evaluate and rank sources of uncertainty in modeling BC concentrations and their radiative impacts. The uncertainties analyzed will include those associated with model parameters as well as model structure. We will use this information to improve model representation of BC distributions. We will reduce the uncertainties in BC distributions and radiative impacts through the close integration of observations and models. We will evaluate the uncertainties using novel metrics developed in this project that will reflect competing effects of co-pollutants and that account for air quality and climate impacts.
Progress Summary:
Figure 1. A priori, a posterori and the difference between a posterior and priori (the former minus later) of BC
anthropogenic emissions in April (top panel) and October (bottom panel).
Future Activities:
- Comprehensive regional-scale sensitivity and assimilation studies.
- WRF-Chem adjoint development.
- Source sector/region contributions to BC concentrations and radiative forcing.
- Quantifying emissions and process uncertainties in adjoint radiative forcing metrics.
- Submission of new paper.
Journal Articles on this Report : 5 Displayed | Download in RIS Format
Other project views: | All 70 publications | 27 publications in selected types | All 27 journal articles |
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Huang M Carmichael GR, Kulkarni S, Streets DG, Lu Z, Zhang Q, Pierce RB, Kondo Y, Jimenez JL, Cubison MJ, Anderson B, Wisthaler A. Sectoral and geographical contributions to summertime continental United States (CONUS) black carbon spatial distributions. Atmospheric Environment 2012;51:165-174. |
R835037 (2012) R835037 (2013) R835037 (2014) R835037 (Final) |
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Marrapu P, Cheng Y, Beig G, Sahu S, Srinivas R, Carmichael GR. Air quality in Delhi during the Commonwealth Games. Atmospheric Chemistry and Physics 2014;14(19):10619-10630. |
R835037 (2013) R835037 (2014) R835037 (Final) |
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Saide PE, Carmichael GR, Liu Z, Schwartz CS, Lin HC, da Silva AM, Hyer E. Aerosol optical depth assimilation for a size-resolved sectional model: impacts of observationally constrained, multi-wavelength and fine mode retrievals on regional scale analyses and forecasts. Atmospheric Chemistry and Physics 2013;13(20):10425-10444. |
R835037 (2013) R835037 (2014) R835037 (Final) |
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Tsao C-C, Campbell JE, Mena-Carrasco M, Spak SN, Carmichael GR, Chen Y. Biofuels that cause land-use change may have much larger non-GHG air quality emissions than fossil fuels. Environmental Science & Technology 2012;46(19):10835-10841. |
R835037 (2013) R835037 (2014) R835037 (Final) |
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Zhang L, Kok JF, Henze DK, Li Q, Zhao C. Improving simulations of fine dust surface concentrations over the western United States by optimizing the particle size distribution. Geophysical Research Letters 2013;40(12):3270-3275. |
R835037 (2013) R835037 (2014) R835037 (Final) |
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Progress and Final Reports:
Original AbstractThe perspectives, information and conclusions conveyed in research project abstracts, progress reports, final reports, journal abstracts and journal publications convey the viewpoints of the principal investigator and may not represent the views and policies of ORD and EPA. Conclusions drawn by the principal investigators have not been reviewed by the Agency.