Statistical constraints on climate model parameters using a scalable cloud-based inference framework
Statistical constraints on climate model parameters using a scalable cloud-based inference framework
复制标题
使用可扩展的基于云的推理框架对气候模型参数进行统计约束
DOI:
10.1017/eds.2023.12
复制
发表时间:
2023
期刊:
影响因子:
--
通讯作者:
Kuusela, Mikael
中科院分区:
文献类型:
--
作者:
Carzon, James;Abreu, Bruno;Regayre, Leighton;Carslaw, Kenneth;Deaconu, Lucia;Stier, Philip;Gordon, Hamish;Kuusela, Mikael
Atmospheric aerosols influence the Earth’s climate, primarily by affecting cloud formation and scattering visible radiation. However, aerosol-related physical processes in climate simulations are highly uncertain. Constraining these processes could help improve model-based climate predictions. We propose a scalable statistical framework for constraining the parameters of expensive climate models by comparing model outputs with observations. Using the C3.AI Suite, a cloud computing platform, we use a perturbed parameter ensemble of the UKESM1 climate model to efficiently train a surrogate model. A method for estimating a data-driven model discrepancy term is described. The strict bounds method is applied to quantify parametric uncertainty in a principled way. We demonstrate the scalability of this framework with 2 weeks’ worth of simulated aerosol optical depth data over the South Atlantic and Central African region, written from the model every 3 hr and matched in time to twice-daily MODIS satellite observations. When constraining the model using real satellite observations, we establish constraints on combinations of two model parameters using much higher time-resolution outputs from the climate model than previous studies. This result suggests that within the limits imposed by an imperfect climate model, potentially very powerful constraints may be achieved when our framework is scaled to the analysis of more observations and for longer time periods.
登录
查看更多内容
DOI:
10.5194/acp-2019-834
发表时间:
2019
期刊:
--
影响因子:
--
作者:
Johnson J
通讯作者:
Johnson J
影响因子:
1.3
作者:
Stanley, Michael;Patil, Pratik;Kuusela, Mikael
通讯作者:
Kuusela, Mikael
DOI:
10.1137/20m1356403
发表时间:
2022
期刊:
SIAM/ASA J. Uncertain. Quantification
影响因子:
--
作者:
Pratik V. Patil;Mikael Kuusela;J. Hobbs
通讯作者:
J. Hobbs
DOI:
10.1002/9780470685853
发表时间:
1994
期刊:
--
影响因子:
--
作者:
L. Biegler;G. Biros;O. Ghattas;M. Heinkenschloss;D. Keyes;B. Mallick;Y. Marzouk;L. Tenorio;B. V. B. Waanders-B.-V.-B.-Waanders-1863062;K. Willcox
通讯作者:
L. Biegler;G. Biros;O. Ghattas;M. Heinkenschloss;D. Keyes;B. Mallick;Y. Marzouk;L. Tenorio;B. V. B. Waanders-B.-V.-B.-Waanders-1863062;K. Willcox
DOI:
--
发表时间:
2019
期刊:
影响因子:
--
作者:
Oshima;N.
通讯作者:
N.