Identification

Title

CESM2.2-CAM6 Perturbed Parameter Ensemble (PPE)

Abstract

To evaluate parameterizations in models, simulations have often been performed with only one change to one parameterization at a time. This is highly inefficient and can be both time-consuming and computationally costly. This data represents ensembles using a Perturbed Parameter Ensemble (PPE) technique, where multiple parameters are varied simultaneously and the parameter values are determined with Latin Hypercube sampling. The simulations vary 43 parameters in the microphysics, convective, turbulence and aerosol schemes with 263 ensembles. The parameter values are located in the PPE Parameter File. Three sets of cases are simulated; Present day climate (PD), pre-industrial aerosol loading (PI) and +4K sea surface temperature (SST4K). Each set is run for 3 years. Atmosphere files are represented as time series in the CESM2.2-CAM6 PPE xx Time Series link, with each individual variable concatenated into one separate file. Most output variables are monthly averages (CESM2.2-CAM6 PPE xx Time Series Monthly Averages) while there are a few variables also outputted as daily averages in (CESM2.2-CAM6 PPE xx Time Series Daily Averages). Monthly average land surface data are found in the CESM2.2-CAM6 PPE xx Raw Land link.

Resource type

dataset

Resource locator

https://www.earthsystemgrid.org/dataset/id/d1d26af2-09cb-4b7c-943d-4b48749919c5.html

protocol: https

applicationProfile: browser

name: CESM2.2-CAM6 Perturbed Parameter Ensemble (PPE)

description: Metadata Link

function: download

Unique resource identifier

code

codeSpace

Dataset language

Spatial reference system

code identifying the spatial reference system

Classification of spatial data and services

Topic category

Keywords

Keyword set

keyword value

Dataset

originating controlled vocabulary

title

reference date

date type

revision

effective date

2014-10-16

Geographic location

West bounding longitude

East bounding longitude

North bounding latitude

South bounding latitude

Temporal reference

Temporal extent

Begin position

End position

Dataset reference date

date type

publication

effective date

2022-09-07

date type

modified

effective date

2022-03-11

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

version of format

Constraints related to access and use

Constraint set

Use constraints

Creative Commons Attribution 4.0 International License.

Limitations on public access

N/A

Responsible organisations

Responsible party

organisation name

UCAR/NCAR - Climate and Global Dynamics Laboratory

email address

esg-support@earthsystemgrid.org

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

UCAR/NCAR - Climate and Global Dynamics Laboratory

email address

esg-support@earthsystemgrid.org

responsible party role

pointOfContact

Metadata date

2023-11-12T10:05:02

Metadata language