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A NEW approach to interpolating our national network
0.01 degree climate surfaces
Professor Mike Hutchinson (ANU)
Climate data sets (1 km)
When? Delivery timeline…
Complete set of Climate and
Bioclimatic data available on
RDSI opendap netCDF CF
& Metadata store complete
= public release
Data starts propagating
ADVANCED USER ACCESS
DOI’s NOT YET AVAILABLE = NO PUBLISH
30 Nov 2013
24 Dec 2013
31 Jan 2013
*Currently experiencing delays in RDSI allocation – delays in the Raijin cloud roll out etc…
What can we expect?
• Temperature estimates improved by around
25% compared to Jones et al. 2009 (RMSE
• Precipitation estimates a modest, but
significant, improvement (7-15% RMSE cross
The model makes no further improvement on
accuracy beyond the 1km mark !
What is different?
• Improved ‘background-anomaly-interpolation’
Temperature and both positive and zero rainfall
can be effectively interpolated by the thin plate
splines method - with adaptive capacity !
Monthly means, topographically corrected yield
influence of atmospheric processes and terrain
Significant improvement over both direct (nonanomaly) and current anomaly approach
• Coastal smarts : A new ‘proximity to coast’
modifier captures marine perturbation