Both sides previous revision
Previous revision
Next revision
|
Previous revision
Next revision
Both sides next revision
|
aerocom:phase3-experiments [2019-05-21 17:02:39] f.malavelle@exeter.ac.uk [Volcanic ACI experiment (VolcACI)] |
aerocom:phase3-experiments [2020-05-18 09:28:51] duncan.watson-parris@physics.ox.ac.uk [Baseline Aircraft experiment] |
* Removal tracer: Pb-210, which is formed from Rn-222 decay (5.5-day lifetime). Its dry/wet removal processes should be treated the same as sulfate. | * Removal tracer: Pb-210, which is formed from Rn-222 decay (5.5-day lifetime). Its dry/wet removal processes should be treated the same as sulfate. |
| |
Descriptions of tracers, access to the CO tracer sources and Rn-222 emission, and other information can be found here {{ :aerocom:A3_tracer_requirements_v2019-03-01.pdf |}}. | Descriptions of tracers, access to the CO tracer sources and Rn-222 emission, and other information can be found here {{ :aerocom:A3_tracer_requirements_v2019-10-10c.pdf |}}. |
| |
===== Common AeroCom phase III Diagnostics Request 2019 ===== | ===== Common AeroCom phase III Diagnostics Request 2019 ===== |
| |
“MDB2-C” 4. Simulate with MDB2 natural and anthropogenic sources with Cnew and Uto | “MDB2-C” 4. Simulate with MDB2 natural and anthropogenic sources with Cnew and Uto |
| |
| ===== Dust Source Attribution Experiment (DUSA) ===== |
| |
| This experiment will investigate the impact of dust from the prominent dust source regions, and the source-receptor relationships over land and remote ocean regions. In addition to the previous AeroCom experiments which focus on the regions where dust amount is significant, this proposed study will also analyze the source-receptor relationships over more extended regions including Arctic, Antarctic, Tibetan Plateau, and oceanic areas. In addition, this multi-model experiment also tackles two areas that have not been examined before in AeroCom: the change of dust particle sizes during the long-range transport, and the dust optical depth at the thermal infrared (10 um) wavelength that is mostly sensitive to dust aerosols, which can be compare to the commonly used value at the mid-visible wavelength. Details about the proposed experiment are described here {{ :aerocom:AeroCom_DUSA_proposal_20191204.pdf |}}. The model output variables are listed here {{:aerocom:AEROCOM3_DUSA_diagnostics_20191202.xlsx|}}, and the file of tagged region domains is provided in the netcdf file (0.5 deg) here [[https://croc.gsfc.nasa.gov/gocart/products/xchange/aerocom/aerocom3/files/|dusrc_tagmap.x720_y360.nc]]. |
| |
| Contact: Dongchul Kim (NASA GSFC) [[dongchul.kim@nasa.gov]] |
| |
| Status: TBD |
| |
| Submission deadline: 30 June 2020 |
| |
| |
| |
===== Historical experiment ===== | ===== Historical experiment ===== |
===== UTLS aerosol experiments ===== | ===== UTLS aerosol experiments ===== |
| |
The upper troposphere/lower stratosphere (UTLS) is a crucial region for Earth's climate, where changes of aerosol loading and composition can have a direct impact on the amount of radiation absorbed and emitted. The proposed UTLS model experiments has the following objectives: (1) Compare and evaluate the model simulated aerosol and precursors in the UTLS regions in recent decades, (2) examine the pathways of aerosols in the UTLS region (e.g., roles of convective transport, chemistry, and direct injection), (3) Assess the contributions of anthropogenic and volcanic emissions to the decadal variations of UTLS aerosols. It will be coordinated with and benefited from other community projects, such as the IGAC/SPARC Atmospheric Composition and Asian Monsoon (ACAM), and the SPARC Stratospheric Sulfur and its Role in Climate (SSiRC). These objectives will be achieved by designed model experiments described here: {{:aerocom:A3_UTLS_2019-04-26.pdf |}} | The upper troposphere/lower stratosphere (UTLS) is a crucial region for Earth's climate, where changes of aerosol loading and composition can have a direct impact on the amount of radiation absorbed and emitted. The proposed UTLS model experiments has the following objectives: (1) Compare and evaluate the model simulated aerosol and precursors in the UTLS regions in recent decades, (2) examine the pathways of aerosols in the UTLS region (e.g., roles of convective transport, chemistry, and direct injection), (3) Assess the contributions of anthropogenic and volcanic emissions to the decadal variations of UTLS aerosols. It will be coordinated with and benefited from other community projects, such as the IGAC/SPARC Atmospheric Composition and Asian Monsoon (ACAM), and the SPARC Stratospheric Sulfur and its Role in Climate (SSiRC). These objectives will be achieved by designed model experiments described here: {{:aerocom:A3_UTLS_2019-11-26.pdf |}} |
| |
Contact: Mian Chin (NASA GSFC) [[mian.chin@nasa.gov]] | Contact: Mian Chin (NASA GSFC) [[mian.chin@nasa.gov]] |
| |
Status: TBD | Status: Taking submissions to AeroCom server. |
| |
Submission deadline: 12-31-2019 | Submission deadline: 31-05-2020 |
| |
Timeline: TBD | |
| |
Column with diagnostic requests in Google Doc excel sheet: [[https://docs.google.com/spreadsheets/d/1EaZO6_FEH6nDhWKE9PvUNpfVkU9RdR2ZT6ahLL2VVEo/edit?ts=5be0af24#gid=1256817062|AeroCom diagnostics CTRL + X 2018/2019]], see column "UTLS" | Column with diagnostic requests in Google Doc excel sheet: [[https://docs.google.com/spreadsheets/d/1EaZO6_FEH6nDhWKE9PvUNpfVkU9RdR2ZT6ahLL2VVEo/edit?ts=5be0af24#gid=1256817062|AeroCom diagnostics CTRL + X 2018/2019]], see column "UTLS" |
===== Atmospheric Composition and Asian Monsoon (ACAM) analysis ===== | ===== Atmospheric Composition and Asian Monsoon (ACAM) analysis ===== |
| |
Motivation: The Asian monsoon system is a major climate component on Earth. With rapid population and economic growth across the Asian monsoon region, it has become a serious concern that the monsoon system coupled with surface emissions is playing an increasingly significant role in affecting not only the regional air quality but also the global atmospheric composition. This proposed project is to form a coordinated modeling and analysis effort among AeroCom, CCMI, and the ACAM communities to study the interactions between Asian air pollution and the Monsoon system. This project uses the model output from other proposed relevant model experiments (e.g., UTLS) and does not require additional model simulations. | Motivation: The Asian monsoon system is a major component in Earth’s climate. Given rapid population and economic growth across the Asian monsoon region, serious concern has emerged that coupling between the monsoon system and surface emissions is having increasingly significant effects not only on regional air quality but also on global atmospheric composition. This proposed activity represents a coordinated modeling and analysis effort among the AeroCom, CCMI, and ACAM communities to study interactions between Asian air pollution and the monsoon system. In Part 1 of ACAM as stated in this docoment, we will only focus on aerosols simulated by global models. In Part 2, we may focus on trace gases by global models, and in Part 3 aerosols and trace gases by regional models. |
| |
Objectives: (1) Compare and evaluate the model simulated aerosol and related species in the Asian monsoon region with observations from remote sensing and recent ground-based and aircraft measurements; (2) Examine the pathways of trace gases and aerosols in the Asian UTLS region via transport by monsoon anticyclone, large scale transport, and atmospheric chemistry; (3) Investigate the interactions between Asian pollution and monsoon meteorology. | Objectives: (1) Compare and evaluate model-simulated aerosol and related species in the Asian monsoon region with observations from remote sensing and recent ground-based and aircraft measurements; (2) Identify and examine pathways of trace gases and aerosols in the UTLS above the Asian monsoon with respect to the monsoon anticyclone, large-scale transport, and atmospheric chemistry; (3) Investigate interactions between Asian pollution and monsoon meteorology |
| |
A more detailed description can be find here {{:aerocom:A3_ACAM_2019-05-15.pdf|}}. | |
| |
Contact: Xiaohua Pan [[xiaohua.pan@nasa.gov]], Mian Chin [[mian.chin@nasa.gov]], Huisheng Bian [[huisheng.bian@nasa.gov]], NASA GSFC | A more detailed description can be find here {{:aerocom:ACAM_experiment_description_V10.pdf|}}. |
| |
| Contact: Xiaohua Pan [[xiaohua.pan@nasa.gov]], Jonathon Wright [[jswright@tsinghua.edu.cn]], Mian Chin [[mian.chin@nasa.gov]] |
| |
| Last update: May 13, 2020 (Make sure to check the latest experiment description above) |
| |
| Status: accepting model submissions |
| |
| Submission deadline: July 31, 2020 |
===== Aerosol-Cloud-Radiation Interaction (ACRI) experiments ===== | ===== Aerosol-Cloud-Radiation Interaction (ACRI) experiments ===== |
| |
| |
Building on the Phase II experiments this effort will support the interpolation of consolidated flight track points from high-temporal resolution model output to minimise the large sampling biases that would otherwise be present. | Building on the Phase II experiments this effort will support the interpolation of consolidated flight track points from high-temporal resolution model output to minimise the large sampling biases that would otherwise be present. |
| |
| //**Note**, we are now only requesting a single year of simulation for the mandatory Tier 1 submissions. Tier 2 submissions are also welcome.// |
| |
Recent dedicated aircraft measurement campaigns and data collection efforts have delivered a large amount of in-situ aerosol measurements of great value to AeroCom modellers. The Global Aerosol Synthesis and Science Project (GASSP) dataset brings 1000s of separate aircraft measurement flights across 10s of campaigns into a single consistent database. Combining this with data from recent campaigns such as CLARIFY, ORACLES, AToM and ACE-ENA provides a unique opportunity to evaluate AeroCom model aerosol distributions across a wide range of regions and meteorological conditions. | Recent dedicated aircraft measurement campaigns and data collection efforts have delivered a large amount of in-situ aerosol measurements of great value to AeroCom modellers. The Global Aerosol Synthesis and Science Project (GASSP) dataset brings 1000s of separate aircraft measurement flights across 10s of campaigns into a single consistent database. Combining this with data from recent campaigns such as CLARIFY, ORACLES, AToM and ACE-ENA provides a unique opportunity to evaluate AeroCom model aerosol distributions across a wide range of regions and meteorological conditions. |
Status: Submission phase | Status: Submission phase |
| |
Submission deadline: March 2019 | Submission deadline: Summer 2020 |
| |
Timeline: TBD | Timeline: First publications ready Autumn 2020 |
| |
Column with diagnostic requests in excel sheet: Aircraft | Column with diagnostic requests in excel sheet: Aircraft |
Document(s) with more info: | Document(s) with more info: |
| |
**Experiment description:** {{ :aerocom:AeroCom_aircraft_experiment_v1.6.docx |}} | **Experiment description:** {{ :aerocom:AeroCom_aircraft_experiment_v1.7.docx |}} |
| |
**Requested diagnostics:** See Phase III CTRL-X diagnostics ('atFlightTrack' sheet) | **Requested diagnostics:** See Phase III CTRL-X diagnostics ('atFlightTrack' sheet) |
**Timeline**: For Holuhraun: Model submissions started. Early analysis and presentation of results expected by Oct 2019. For Kilauea: Limited submission so far (4 groups have run the experiment with different emissions, we will coordinate and present early analyses at the Oct 2019 AEROCOM meeting. | **Timeline**: For Holuhraun: Model submissions started. Early analysis and presentation of results expected by Oct 2019. For Kilauea: Limited submission so far (4 groups have run the experiment with different emissions, we will coordinate and present early analyses at the Oct 2019 AEROCOM meeting. |
| |
**Column with diagnostic requests in excel sheet**: Column 'VolcACI' in aermonthy-2D, aermonthy-2D, aerfixed, aer6hr, aer3hr-2d and aer3hr-3D sheets. [[https://drive.google.com/open?id=1uClxQkhoA7cj9uYbmw0U87QNmoGoiNNT|External link]] to the former diagnostic list for this experiment . Will update details for Kilauea soon. | **Column with diagnostic requests in excel sheet**: Column 'VolcACI' in aermonthy-2D, aermonthy-3D, aerfixed, aer6hr, aer3hr-2d and aer3hr-3D sheets. [[https://drive.google.com/open?id=1p0A0w6BbG-5dvg5-YrEE2mQ_eNZ5ASKF|External link]] to the former diagnostics list for this experiment . Details for Kilauea updated. |
| |
**Document(s) with more info**: [[https://drive.google.com/open?id=1uxD0AZwP0DzGzUwNw2RtF5K3BSTJ6K_e|VolcACI documentation]]. | **Document(s) with more info**: [[https://drive.google.com/file/d/1e_GDV_TrP9FqMS1L0Zqddl7MRbl1SLp1/view?usp=sharing|.docx]][[https://drive.google.com/file/d/1aRQDQz80uaVg5N4-yVke50OsYhfdlS9W/view?usp=sharing|.pdf]]. |
| |
===== Aerosol GCM Trajectory Experiment (GCMTraj) ===== | ===== Aerosol GCM Trajectory Experiment (GCMTraj) ===== |
| |
Document(s) with more info: {{ :aerocom:AeroComMMPPE_BCexperimentprotocolV0.2.pdf |BC experiment protocol}} | Document(s) with more info: {{ :aerocom:AeroComMMPPE_BCexperimentprotocolV0.2.pdf |BC experiment protocol}} |
{{ :aerocom:AeroCom Phase_III_plume_injection_height_v9.pdf |}} | |
| [[http://example.com|External Link]] |
===== Biomass burning emission injection height experiment (BBEIH) ===== | ===== Biomass burning emission injection height experiment (BBEIH) ===== |
Smoke aerosols can adversely affect surface air quality and visibility near emission sources and even hundreds to thousands of km downwind, and thus create health and aviation hazards. They also have impacts on air temperature, cloud properties and precipitation. The atmospheric composition of smoke aerosols depends not only on the emitted mass, but also on the injection height. This is especially true for large boreal forest fires that often emit smoke above planetary boundary layer (PBL) into the free troposphere and even the lower stratosphere. However, most atmospheric chemistry transport models (CTMs) assume that fire emissions are dispersed only within PBL, or use simple plume-rise parameterizations.The objectives of this project is to test the sensitivity of various model results to biomass burning smoke injection height, where the biomass burning injection height is based on MISR (Val Martin et al., 2010; 2018), as compared to the nominal model value.This proposed BBEIH study is to answer this question through a set of GCM model experiments. Please read the details in the document: {{:aerocom:AeroCom Phase_III_plume_injection_height_v10.pdf}} | Smoke aerosols can adversely affect surface air quality and visibility near emission sources and even hundreds to thousands of km downwind, and thus create health and aviation hazards. They also have impacts on air temperature, cloud properties and precipitation. The atmospheric composition of smoke aerosols depends not only on the emitted mass, but also on the injection height. This is especially true for large boreal forest fires that often emit smoke above planetary boundary layer (PBL) into the free troposphere and even the lower stratosphere. However, most atmospheric chemistry transport models (CTMs) assume that fire emissions are dispersed only within PBL, or use simple plume-rise parameterizations.The objectives of this project is to test the sensitivity of various model results to biomass burning smoke injection height, where the biomass burning injection height is based on MISR (Val Martin et al., 2010; 2018), as compared to the nominal model value.This proposed BBEIH study is to answer this question through a set of GCM model experiments. Please read the details in the document: {{:aerocom:AeroCom Phase_III_plume_injection_height_v16.pdf}} |
| |
**Phase III Organizers**: Xiaohua Pan, Ralph Kahn, Mian Chin, Maria Val Martin | **Phase III Organizers**: Xiaohua Pan, Ralph Kahn, Mian Chin, Maria Val Martin |
**Contact:** Xiaohua Pan [[xiaohua.pan@nasa.gov]], Ralph Kahn [[ralph.kahn@nasa.gov]] | **Contact:** Xiaohua Pan [[xiaohua.pan@nasa.gov]], Ralph Kahn [[ralph.kahn@nasa.gov]] |
| |
**Last update:** Mar. 15, 2019 | **Last update:** May. 13, 2020 |
| |
**Status:** accepting model submissions | **Status:** accepting model submissions |
| |
**Submission deadline:** July 31, 2019 | **Submission deadline:** June 30, 2020 |
| |
Column with diagnostic requests in Googld Doc excel sheet: [[https://docs.google.com/spreadsheets/d/1EaZO6_FEH6nDhWKE9PvUNpfVkU9RdR2ZT6ahLL2VVEo/edit?ts=5be0af24#gid=1256817062|AeroCom diagnostics CTRL + X 2018/2019]], see column "BBEIH" | Column with diagnostic requests in Googld Doc excel sheet: [[https://docs.google.com/spreadsheets/d/1EaZO6_FEH6nDhWKE9PvUNpfVkU9RdR2ZT6ahLL2VVEo/edit?ts=5be0af24#gid=1256817062|AeroCom diagnostics CTRL + X 2018/2019]], see column "BBEIH" |