...
Aerosol radiative forcing |
|
...
...
improvements from aerosol wet removal treatment and |
|
...
parameter tuning | First Author | |
|---|
All Authors | Yunpeng Shan, Jiwen Fan, |
|---|
|
...
E3SMv3 atmosphere development team | Topic | Atmosphere |
|---|
Project | E3SM |
|---|
Abstract | Anthropogenic aerosol effective radiative forcing (ERFaer) is an important metric to quantify aerosol effects on climate in Earth system models. Department of Energy’s Energy Exascale Earth System Model (E3SM) tends to overestimate ERFaer, direct forcing (ERFari), and indirect forcing (ERFaci), and one important reason is the significantly overestimated aerosol burden and lifetime. The insufficient aerosol wet removal is attributed to the aerosol overestimation. We improved the aerosol wet removal treatments in E3SM and tuned the hygroscopicity of black carbon, leading aerosol burdens well sit within the reference value ranges. Consequently, the ERFari significantly decreases to reasonable values and ERFaci also decreases. Tuning of cloud sensitivity to aerosols and imposing cloud droplet number can further decrease ERFaci. As a result, the total aerosol forcing and its components have been well within the reference ranges. |
|---|
In-person | Yes |
|---|
Poster |
|---|
|
...
Add a poster or a presentations here
...
Discussion Link
...
| | View file |
|---|
| name | E3SM_42x42_posters-Shanyp-JFan-Shanyp-JFan.pdf |
|---|
|
|
|---|
Discussion Link | Yunpeng.Shan@pnnl.gov |
|---|
|