An Integrated Agriculture, Atmosphere, and Hydrology Modeling System for Ecosystem Assessments

Ran, Limei; Yuan, Yongping; Cooter, Ellen J.; Benson, Verel W.; Yang, De Ren; Pleim, Jonathan; Wang, Ruoyu; Williams, J. R.

doi:10.1029/2019ms001708

Cited by 15 publications

(17 citation statements)

References 97 publications

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“…30 Integrating EPIC and CMAQ, FEST-C enables the dynamic coupling between agriculture and atmosphere at large scales. 30,32 Downscaled meteorological fields for the periods 2008-2012, 2048-2052, and 2096-2100 under RCP4.5 and RCP8.5 are used to drive the integrated model. The meteorological fields are derived from the bias-corrected outputs of the National Center for Atmospheric Research's CESM1.…”

Section: Integrated Modelmentioning

confidence: 99%

“…So far, few studies have used process-based dynamic models to evaluate the changes in V NH3,AG in response to future climate change. 28 Here, we use a process-based fully coupled agroecosystemair quality model, FEST-C_EPIC-CMAQ_BIDI, [29][30][31][32] to elucidate the climate change impacts on future V NH3,AG in the US, one of the nations with the largest coverage of agricultural land (Figure 1). 33 Our model, FEST-C_EPIC-CMAQ_BIDI, consists of an agroecosystem model (Environmental Policy Integrated Climate [EPIC] model) and a chemical transport model (Community Multiscale Air Quality model [CMAQ]) using an interface (the Fertilizer Emission Scenario Tool for CMAQ [FEST-C]) and an NH 3 bidirectional exchange module (BIDI) to couple the two models (Experimental Procedures).…”

Section: Introductionmentioning

confidence: 99%

“…33 Our model, FEST-C_EPIC-CMAQ_BIDI, consists of an agroecosystem model (Environmental Policy Integrated Climate [EPIC] model) and a chemical transport model (Community Multiscale Air Quality model [CMAQ]) using an interface (the Fertilizer Emission Scenario Tool for CMAQ [FEST-C]) and an NH 3 bidirectional exchange module (BIDI) to couple the two models (Experimental Procedures). 32 For V NH3,AG , we consider both synthetic fertilizer and manure application, which is estimated to contribute 30% of the total NH 3 emission in the US in 2011 (Table S1). FEST-C_EPIC simulates 42 rain-fed and irrigated crops (e.g., corn grain and soybean) and grasses (e.g., hay and alfalfa) (Table S2) and considers various fertilizer types (see Data and Code Availability) and application methods.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Intense Warming Will Significantly Increase Cropland Ammonia Volatilization Threatening Food Security and Ecosystem Health

Shen

Chen

et al. 2020

One Earth

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Section: Integrated Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Intense Warming Will Significantly Increase Cropland Ammonia Volatilization Threatening Food Security and Ecosystem Health

Shen

Chen

et al. 2020

One Earth

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“…The new M3Dry BiDi option requires fertilization inputs that are generated by the Environmental Policy Integrated Climate (EPIC; Williams, 1995) model through the Java-based Fertilization Emission Scenario Tool for CMAQ (FEST-C; Ran et al, 2019) interface. M3Dry in CMAQ53 has been updated to directly use the information provided by the EPIC model.…”

Section: Updates To the M3dry Deposition Model 270mentioning

confidence: 99%

The Community Multiscale Air Quality (CMAQ) Model Versions 5.3 and 5.3.1: System Updates and Evaluation

Appel¹,

Bash²,

Fahey³

et al. 2020

Preprint

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Abstract. The Community Multiscale Air Quality (CMAQ) model version 5.3 (CMAQ53), released to the public in August 2019 and followed by version 5.3.1 (CMAQ531) in December 2019, contains numerous science updates, enhanced functionality, and improved computation efficiency relative to the previous version of the model, 5.2.1 (CMAQ521). Major science advances in the new model include a new aerosol module (AERO7) with significant updates to secondary organic aerosol (SOA) chemistry; updated chlorine chemistry; updated detailed bromine/iodine chemistry; updated simple halogen chemistry; addition of dimethyl sulfide (DMS) chemistry in the CB6r3 chemical mechanism; updated M3Dry bi-directional deposition model; and the new Surface Tiled Aerosol and Gaseous Exchange (STAGE) bi-directional deposition model. In addition, support for the Weather Research and Forecasting (WRF) model’s hybrid vertical coordinate (HVC) system was added to CMAQ53 and the Meteorology-Chemistry Interface Processor (MCIP) version 5.0 (MCIP50). Enhanced functionality in CMAQ53 includes the new Detailed Emissions Scaling, Isolation and Diagnostic (DESID) system for scaling incoming emissions to CMAQ and reading multiple gridded input emission files. Evaluation of CMAQ53 was performed by comparing monthly and seasonal mean daily 8-hr average (MDA8) O3 and PM2.5 values from several CMAQ531 simulations to a similarly configured CMAQ521 simulation encompassing 2016. For MDA8 O3, CMAQ531 has higher O3 in the winter versus CMAQ521, due primarily to reduced dry deposition to snow, which strongly reduces wintertime O3 bias. MDA8 O3 is lower with CMAQ531 throughout the rest of the year, particularly in spring, due in part to reduced O3 from the lateral boundary conditions (BCs), which generally increases MDA8 O3 bias in spring and fall. For daily 24-hr average PM2.5, CMAQ531 has lower concentrations on average in spring and fall, higher concentrations in summer, and similar concentrations in winter as CMAQ521, which slightly increases bias in spring and fall and reduces bias in summer. Comparisons isolating updates to several specific aspects of the modeling system, namely the lateral BCs, meteorology model version, and the deposition model used, were also performed. Transitioning from a hemispheric CMAQ (HCMAQ) version 5.2.1 simulation to a HCMAQ version 5.3 simulation to provide lateral BCs contributes to higher O3 mixing ratios in the regional CMAQ simulation in higher latitudes during winter (due to the decreased O3 dry deposition to snow in CMAQ53) and lower O3 mixing ratios in mid and lower latitudes year-round (due to reduced O3 over the ocean with CMAQ53). Transitioning from WRF version 3.8 to WRF version 4.1.1 with the HVC system resulted in consistently higher (1.0–1.5 ppbv) MDA8 O3 mixing ratios and higher PM2.5 concentrations (0.1–0.25 µg m−3) throughout the year. Finally, comparisons of the M3Dry and STAGE deposition models showed that MDA8 O3 is generally higher with M3Dry outside of summer, while PM2.5 is consistently higher with STAGE due to differences in the assumptions of particle deposition velocities to some surfaces between the two models. For ambient NH3, STAGE has slightly higher concentrations and smaller bias in the winter, spring, and fall, while M3Dry has higher concentrations and smaller bias, but larger error and lower correlation, in the summer.

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“…Monoterpene oxidation, which accounts for half of the organic aerosol in the southeastern US in summer, was significantly underestimated in CMAQ52 with AERO6 (Zhang et al, 2018) and has been updated in AERO7/7i. The Odum two-product monoterpene SOA (Carlton et al, 2010) in AERO6 was replaced in AERO7/7i with updated yields based on more recent experimental data by Saha and Grieshop (2016). The new yields are represented using a VBS fit and are applied to both OH and O 3 oxidation of monoterpenes.…”

Section: Aero7/7imentioning

confidence: 99%

The Community Multiscale Air Quality (CMAQ) model versions 5.3 and 5.3.1: system updates and evaluation

et al. 2021

View full text Add to dashboard Cite

Abstract. The Community Multiscale Air Quality (CMAQ) model version 5.3 (CMAQ53), released to the public in August 2019 and followed by version 5.3.1 (CMAQ531) in December 2019, contains numerous science updates, enhanced functionality, and improved computation efficiency relative to the previous version of the model, 5.2.1 (CMAQ521). Major science advances in the new model include a new aerosol module (AERO7) with significant updates to secondary organic aerosol (SOA) chemistry, updated chlorine chemistry, updated detailed bromine and iodine chemistry, updated simple halogen chemistry, the addition of dimethyl sulfide (DMS) chemistry in the CB6r3 chemical mechanism, updated M3Dry bidirectional deposition model, and the new Surface Tiled Aerosol and Gaseous Exchange (STAGE) bidirectional deposition model. In addition, support for the Weather Research and Forecasting (WRF) model's hybrid vertical coordinate (HVC) was added to CMAQ53 and the Meteorology-Chemistry Interface Processor (MCIP) version 5.0 (MCIP50). Enhanced functionality in CMAQ53 includes the new Detailed Emissions Scaling, Isolation and Diagnostic (DESID) system for scaling incoming emissions to CMAQ and reading multiple gridded input emission files. Evaluation of CMAQ531 was performed by comparing monthly and seasonal mean daily 8 h average (MDA8) O3 and daily PM2.5 values from several CMAQ531 simulations to a similarly configured CMAQ521 simulation encompassing 2016. For MDA8 O3, CMAQ531 has higher O3 in the winter versus CMAQ521, due primarily to reduced dry deposition to snow, which strongly reduces wintertime O3 bias (2–4 ppbv monthly average). MDA8 O3 is lower with CMAQ531 throughout the rest of the year, particularly in spring, due in part to reduced O3 from the lateral boundary conditions (BCs), which generally increases MDA8 O3 bias in spring and fall (∼0.5 µg m−3). For daily 24 h average PM2.5, CMAQ531 has lower concentrations on average in spring and fall, higher concentrations in summer, and similar concentrations in winter to CMAQ521, which slightly increases bias in spring and fall and reduces bias in summer. Comparisons were also performed to isolate updates to several specific aspects of the modeling system, namely the lateral BCs, meteorology model version, and the deposition model used. Transitioning from a hemispheric CMAQ (HCMAQ) version 5.2.1 simulation to a HCMAQ version 5.3 simulation to provide lateral BCs contributes to higher O3 mixing ratios in the regional CMAQ simulation in higher latitudes during winter (due to the decreased O3 dry deposition to snow in CMAQ53) and lower O3 mixing ratios in middle and lower latitudes year-round (due to reduced O3 over the ocean with CMAQ53). Transitioning from WRF version 3.8 to WRF version 4.1.1 with the HVC resulted in consistently higher (1.0–1.5 ppbv) MDA8 O3 mixing ratios and higher PM2.5 concentrations (0.1–0.25 µg m−3) throughout the year. Finally, comparisons of the M3Dry and STAGE deposition models showed that MDA8 O3 is generally higher with M3Dry outside of summer, while PM2.5 is consistently higher with STAGE due to differences in the assumptions of particle deposition velocities to non-vegetated surfaces and land use with short vegetation (e.g., grasslands) between the two models. For ambient NH3, STAGE has slightly higher concentrations and smaller bias in the winter, spring, and fall, while M3Dry has higher concentrations and smaller bias but larger error and lower correlation in the summer.

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An Integrated Agriculture, Atmosphere, and Hydrology Modeling System for Ecosystem Assessments

Cited by 15 publications

References 97 publications

Intense Warming Will Significantly Increase Cropland Ammonia Volatilization Threatening Food Security and Ecosystem Health

Intense Warming Will Significantly Increase Cropland Ammonia Volatilization Threatening Food Security and Ecosystem Health

The Community Multiscale Air Quality (CMAQ) Model Versions 5.3 and 5.3.1: System Updates and Evaluation

The Community Multiscale Air Quality (CMAQ) model versions 5.3 and 5.3.1: system updates and evaluation

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