EcoTas13 Mike Hutchinson ANU Climate

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ANU's Mike Hutchinson presentation on ANU Climate at EcoTas13 in November 2013.

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EcoTas13 Mike Hutchinson ANU Climate

  1. 1. ANUClimate A NEW approach to interpolating our national network 0.01 degree climate surfaces Professor Mike Hutchinson (ANU)
  2. 2. Climate data sets (1 km) Tmin Tmax vp P daily ✔ 1970-2011 ✔ ✔ ✔ monthly ✔ 1970-2011 ✔ ✔ ✔ ✔ mean monthly pan evap. wet days ✔ ✔ ✔ ✔ ✔ ✔ solar rad. wind speed ✔ ✔
  3. 3. ANUClimate When? Delivery timeline… Complete set of Climate and Bioclimatic data available on RDSI RDSI opendap netCDF CF & Metadata store complete = public release Data starts propagating to RDSI* 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…
  4. 4. ANUClimate What can we expect? • Temperature estimates improved by around 25% compared to Jones et al. 2009 (RMSE cross validation) • Precipitation estimates a modest, but significant, improvement (7-15% RMSE cross validation) The model makes no further improvement on accuracy beyond the 1km mark !
  5. 5. ANUClimate What is different? • Improved ‘background-anomaly-interpolation’ approach • • • 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
  6. 6. ANUClimate How is it done?
  7. 7. AMOS 2014
  8. 8. Bioclimate data sets (1 km T, P and R)

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