Print

Identification

Field Value

Title

NARCliM1.0 climate projections

Alternative title(s)

Regional climate projections

Abstract

What is NARCliM?

The New South Wales and Australian Regional Climate Modelling (NARCliM) project develops high-resolution regional climate projections that cover NSW and South-eastern Australia at a higher resolution and the Australasian continent and beyond at another resolution (named the NARCliM and CORDEX domains, respectively). Computer modelled climate projections are the best information we have available on our future climate. NARCliM has been designed to help government, industry and community in NSW and Australia plan for our future with robust regional and local scale data. The NARCliM project uses currently available global climate models (GCM) and greenhouse gas (GHG) emissions scenarios from the latest Coupled Model Intercomparison Project (CMIP) used in the IPCC reports and applies regional dynamical downscaling using the latest Weather Research and Forecasting model (WRF). NARCliM generates critical climate indices for a broad range of applications and climate change adaptation and risk analysis.

NARCliM1.0

The NARCliM project began as a multi-agency partnership led by the NSW Government, partnered with the ACT Government, and with contributions from the Climate Change Research Centre (CCRC) at the University of New South Wales. NARCliM1.0 was released in 2014. It contains simulations from four CMIP3 GCMs and three regional climate models (RCM) using WRF3.3 for one future GHG scenario (SRES A2). Time periods included are 1990 to 2009, 2020 to 2039 and 2060 to 2079, with a grid resolution of 10km for South-eastern Australia (NARCliM domain) nested within a 50km grid for Australasia (CORDEX domain). NARCliM1.0 data has been used for a range of NSW climate adaptation and impact studies and climate change visualisations.

NARCliM1.0 features: * Historical period: 1990 to 2009 * Future simulation periods: 2020 to 2039 and 2060 to 2079

Some common variables projected by NARCliM1.0 include: * Temperature * Precipitation * Wind speed * Surface evaporation * Soil moisture * Bias corrected and post processed data * Three National Centres for Environmental Predictions (NCEP) reanalysis forced simulations were run from 1950 to 2009.

Model output

For access to NARCliM climate projections data, please visit the NSW Climate Data Portal or the National Computational Infrastructure at ANU. The Climate Data Portal provides users access to NARCliM's most commonly used "core variables" at daily and monthly frequencies. Additional variables useful for specialist analysis are available upon request. For more information, visit the AdaptNSW website, or contact us through the NARCliM Mailbox, narclim@environment.nsw.gov.au.

Related links

Discover how climate change will affect your region at AdaptNSW

Resource locator

Data quality statement

Name: Data quality statement

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

Data quality statement for NARCliM1.0 data.

Function: download

NARCliM1.0 climate variables

Name: NARCliM1.0 climate variables

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

List of variables generated for NARCliM1.0, alongside of NARCliM1.5. For more information on data availability, please visit the Climate Data Portal

Function: download

NARCliM1.0 reanalysis climate variables

Name: NARCliM1.0 reanalysis climate variables

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

This link will redirect you to the NSW Climate Data Portal, where you can browse and download reanalysed NARCliM1.0 climate variables.

Function: download

Technical Note 1 - Choosing GCMs

Name: Technical Note 1 - Choosing GCMs

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

Method for choosing global climate models for NARCliM1.0

Function: download

Technical Note 2 - Choosing the RCMs to perform the downscaling

Name: Technical Note 2 - Choosing the RCMs to perform the downscaling

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

Method for choosing regional climate models for NARCliM1.0

Function: download

Technical Note 3 - Guidance on the use of bias corrected data

Name: Technical Note 3 - Guidance on the use of bias corrected data

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

Guidance on the use of bias corrected data developed for NARCliM1.0

Function: download

Technical Note 4 - NARCliM1.0 Climatological Atlas

Name: Technical Note 4 - NARCliM1.0 Climatological Atlas

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

Climatological atlas for NARCliM1.0

Function: download

NARCliM Terms and Condition of use

Name: NARCliM Terms and Condition of use

Protocol: WWW:DOWNLOAD-1.0-http--download

Description:

Please read: covers the requirement of how to acknowledge and cite NARCliM in publications, data disclaimer, license and privacy.

Function: download

Unique resource identifier

Code

6ab66b13-c98d-4ab8-b47d-b79971bff73a

Presentation form

Model digital

Edition

NARCliM1.0

Dataset language

English

Metadata standard

Name

ISO 19115

Edition

2016

Dataset URI

https://datasets.seed.nsw.gov.au/dataset/6ab66b13-c98d-4ab8-b47d-b79971bff73a

Purpose

Meeting strategic requirements for regional climate data

Status

Under development

Spatial representation type

grid

Spatial reference system

Code identifying the spatial reference system

4283

Spatial resolution

10 km

Additional information source

NARCliM output

The NARCliM models generate data for more than 100 variables. The most commonly used variables are provided on the Climate Data Portal in multiple formats. These include:

  • 2-metre temperature (hourly)

  • Daily maximum 2-metre temperature

  • Daily minimum 2-metre temperature

  • Precipitation

  • Surface pressure

  • 2-metre specific humidity (hourly)

  • 10-metre wind speed (hourly)

  • Surface evaporation

  • Soil moisture

  • Radiation (upward and downward longwave, upward and downward short wave)

  • Forest fire danger index (FFDI)

  • Areal potential evapotranspiration (APET)

For daily mean variables:

  • Mean is average within daily values time: point values 1hour

  • Max is maximum within daily values time: point values 1 hour

  • Min is minimum within daily values time: point values 1 hour.

  • Meantstep is average within daily values time: point values 300 second

  • Maxtstep is maximum within daily values time: point values 300 second

  • Mintstep is minimum within daily values time: point values 300 second

For monthly mean variables:

  • Mean is average within monthly values time: point values 1hour

  • Max is maximum within monthly values time: point values 1 hour

  • Maxmean is mean of daily maximum within daily values: point value 1 hour

  • Min is minimum within monthly values time: point values 1 hour

  • Minmean is mean of daily minimum within daily values: point value 1 hour

  • Meantstep is average within monthly values time: point values 300 second

  • Maxtstep is maximum within monthly values time: point values 300 second

  • Mintstep is minimum within monthly values time: point values 300 second

Data licensing

The Information Asset Register (IAR) contains information, data, documents and pages prepared by the NSW Government Department of Planning, Industry and Environment (DPIE) and third parties. The Department supports and encourages the dissemination and exchange of publicly funded information and endorses the use of the Australian Governments Open Access and Licensing Framework (AusGOAL). Unless otherwise stated, all Department material available on the IAR is licensed under the Creative Commons Attribution 4.0 International (CC BY 4.0).

Data disclaimer

Information available on the Information Asset Register (IAR) has been prepared in good faith, exercising all due care and attention, but no representation, express warranty or implied warranty, is made to the relevance, accuracy, completeness or fitness for purpose of this information in respect of any particular user circumstances. Climate data projections include an inherent degree of uncertainty. You are responsible for assessing the relevance of the data for your intended purposes.

The Department endeavours to make sure that information provided on the IAR is correct at the time of its publication. However, as necessary you should obtain independent advice before making any decision based on the information on this site. The information on this site is made available on the understanding that the State of NSW and the Department accept no responsibility or liability for any damage, cost, loss or expense incurred by you as a result of:

  • Any error, omission or misrepresentation on this site

  • Any malfunction or failure to function of this site

  • Reliance upon this website’s material or any linked sites

  • Without limiting the above, any delay, failure or error in recording, displaying or updating information, including but not limited to, data relating to credit holdings

Where there are known limitations to the information provided online, we will include an explanation of these limitations wherever possible. If there is any material that you consider to be misleading or inaccurate, please let us know and it will be corrected as soon as possible.

For all enquires, feedback and complaints relating to NARCliM data, please contact: narclim@environment.nsw.gov.au

Classification of spatial data and services

Field Value

Topic category

Keywords

Field Value

Keyword set

keyword value

CLIMATE-AND-WEATHER

CLIMATE-AND-WEATHER-Climate-change

Originating controlled vocabulary

Title

ANZLIC Search Words

Reference date

2008-05-16

Geographic location

West bounding longitude

133.7271

East bounding longitude

168.1256

North bounding latitude

-39.7919

South bounding latitude

-22.471

NSW Place Name

South-eastern Australia

Vertical extent information

Minimum value

-100

Maximum value

2228

Coordinate reference system

Authority code

urn:ogc:def:cs:EPSG::

Code identifying the coordinate reference system

5711

Temporal extent

Begin position

1990-01-01

End position

N/A

Dataset reference date

Resource maintenance

Maintenance and update frequency

As needed

Contact info

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Quality and validity

Field Value

Lineage

NARCliM is an ensemble of twelve global-regional climate model combinations. Four Coupled Model Inter-comparison Project phase 3 (CMIP3) global climate models (GCMs) were dynamically downscaled to finer spatial and temporal scales using three regional climate models (RCMs). Three twenty-year periods were simulated: (i) recent past (1990-2009), (ii) near future (2020-2039), and (iii) far future (2060-2079). Three 1950-2009 reanalysis-forced simulations were also developed for quantifying the RCMs’ capability to simulate observed regional climate for Southeast Australia. Further, finer dynamical downscaling to 2 km over Sydney and statistical downscaling to 250 m and 1 km resolution, were developed.

General information

Outputs from GCMs are used as the initial condition in the regional climate model. GCMs were selected based on their overall performance in representing large scale climate phenomena (e.g. El Nino patterns) and climate variability in widely used metrics (e.g. rainfall and temperature), based on an extensive literature review. The overall poor-performing GCMs were excluded. The remaining GCMs were ranked for independence. Finally, the independence ranking was combined with choosing a spread in temperature and rainfall projections for southeastern Australia.

The RCMs differ by their parameterisations of planetary boundary layer, land surface and cumulus physics, micro physics, and short and longwave radiation physics. The RCMs were selected from combinations of physics schemes, ranked on their distinct ability to capture temperature, precipitation, mean sea level pressure and winds, as well as their statistical independence.

The model output from the NARCliM twelve-member (NARCliM1.0) three-dimensional (longitude, latitude, height) ensemble was further processed into two-dimensional Coordinated Regional Climate Downscaling Experiment (CORDEX)-compliant files at various temporal resolutions from sub-daily to annual timescales. The postprocessed data was then interpolated onto a regular latitude-longitude grid from the native rotated pole grid that WRF uses. Temperature and precipitation outputs were bias-corrected which acts as an additional dataset available when assessing thresholds and non-linearities in the system. NARCliM data is in NetCDF format, however the Climate Data Portal provides data in a text-readable format.

The NARCliM models were simulated on the National Computational Infrastructure supercomputing facility. The CORDEX 50 km and NARCliM 10 km domains are run together in a one-way nesting set-up.

Constraints related to access and use

Field Value

Limitations on public access

Data Quality

Field Value

Scope

dataset

DQ Completeness Commission

Effective date

2014-12-01

Explanation

Excess datum in the dataset are projections of southern Queensland, eastern South Australia and all of Victoria.

NARCliM Domain (including the excess data)

  • Grid Type: rotated pole

  • Grid north pole: (147.63N, 60.31E)

  • Grid corner (regular coordinates): (133.7271, -39.7919) (168.1256, -22.4710)

DQ Completeness Omission

Effective date

2014-12-01

Explanation

All data has been provided except for the variable 'snow amount' at monthly, daily and hourly timesteps. This variable can be derived at these temporal frequencies based on the raw model output developed for the project.

DQ Absolute External Positional Accuracy

Effective date

2014-12-01

Explanation

Resolution is 10 km for the NARCliM domain and 50 km for the CORDEX domain.

Responsible organisations

Field Value

Responsible party

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Metadata on metadata

Field Value

Metadata point of contact

Contact position

Data Broker

Organisation name

NSW Department of Climate Change, Energy, the Environment and Water

Telephone number

131555

Email address

data.broker@environment.nsw.gov.au

Web address

https://www.nsw.gov.au/departments-and-agencies/dcceew

Responsible party role

pointOfContact

Metadata date

2024-10-18T00:41:41.650213

Metadata language