Identification

Title

CESM2 Initialized 2019/20 Australian Wildfire Simulations

Abstract

The coupled climate response to biomass burning emissions from the 2019/20 Australian wildfire season is estimated from the contrast between this 30-member ensembles using CESM2 initialized in August 2019. In response to the fires, a widespread increase in biomass aerosol burdens is simulated in the southern hemisphere through late 2019 and early 2020. Accompanying the increase is an enhancement of cloud albedo, particularly in regions of widespread stratocumulus clouds in the southeastern subtropical Pacific Ocean. The increase in albedo acts to cool the surface, dry the boundary layer, and reduce the moist static energy of the advected low-level flow into the deep tropics. It also cools the ocean locally and the currents that flow into the deep tropics. In response, the Intertropical Convergence Zone is found to migrate northward and sea surface temperature in the Niño3.4 region cools. A subsequent multi-year ensemble-mean cooling of the tropical Pacific is simulated through the end of 2021, suggesting an important contribution to the ongoing strong La Niña event.

Resource type

dataset

Resource locator

https://gdex.ucar.edu/dataset/id/ef450540-4c2f-449e-a4a6-c17e0dcff510.html

protocol: https

applicationProfile: browser

name: CESM2 Initialized 2019/20 Australian Wildfire Simulations

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

Keyword set

keyword value

EARTH SCIENCE > ATMOSPHERE > AIR QUALITY > EMISSIONS

EARTH SCIENCE > ATMOSPHERE > ATMOSPHERIC RADIATION > ALBEDO

EARTH SCIENCE > CLIMATE INDICATORS > ATMOSPHERIC/OCEAN INDICATORS > TELECONNECTIONS > EL NINO SOUTHERN OSCILLATION (ENSO)

EARTH SCIENCE > HUMAN DIMENSIONS > NATURAL HAZARDS > WILDFIRES

EARTH SCIENCE SERVICES > MODELS > COUPLED CLIMATE MODELS

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-03-15

Keyword set

keyword value

Other > Models > Cesm > Ncar Community Earth System Model

originating controlled vocabulary

title

reference date

date type

revision

effective date

2018-03-15

Geographic location

West bounding longitude

-180.0

East bounding longitude

180.0

North bounding latitude

90.0

South bounding latitude

-90.0

Temporal reference

Temporal extent

Begin position

2019-08

End position

2022-07

Dataset reference date

date type

publication

effective date

2023-02-12

date type

modified

effective date

2023-02-07

Frequency of update

Quality and validity

Lineage

Conformity

Data format

name of format

Hierarchical Data Format File (application/x-hdf)

version of format

Constraints related to access and use

Constraint set

Use constraints

Creative Commons Attribution 4.0 International License.

Limitations on public access

none

Responsible organisations

Responsible party

organisation name

UCAR/NCAR - Climate and Global Dynamics Laboratory

email address

fasullo@ucar.edu

responsible party role

pointOfContact

Metadata on metadata

Metadata point of contact

organisation name

UCAR/NCAR - GDEX

email address

gdex@ucar.edu

responsible party role

pointOfContact

Metadata date

2023-03-24T15:15:40-06:00

Metadata language