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Climate Victoria: Minimum Temperature (3DS-TM; 9 second, approx. 250 m)

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About this Collection

Climate Victoria: Minimum Temperature (3DS-TM; 9 second, approx. 250 m)


Daily (Jan 1981 - Jul 2014), monthly and mean monthly (1981-2010) surfaces of minimum temperature (approx. 1.2 m from ground) across Victoria at a spatial resolution of 9 seconds (approx. 250 m). Surfaces are developed using trivariate splines (latitude, longitude and elevation) with partial dependence upon a topographic index of relative elevation... more


Climatology (excl. Climate Change Processes)


https://doi.org/10.25919/5c183912b47c7


01 Jan 1981


31 Jul 2014


CSIRO Enquiries
CSIROEnquiries@csiro.au
1300 363 400

climate interpolation victoria cold air drainage MODIS LST land surface temperature


:

Stewart SB, Nitschke CR. 2017. Improving temperature interpolation using MODIS LST and local topography: a comparison of methods in south east Australia. International Journal of Climatology. 37(7): 3098-3110. doi: 10.1002/joc.4902

Attribution

A) Data modelling: 1. Weather station observations collected by the Australian Bureau of Meteorology were obtained via the SILO patched point dataset (https://data.qld.gov.au/dataset/silo-patched-point-datasets-for-queensland), followed by the removal of all interpolated records. 2. Climate normals representing the 1981-2010 reference period were calculated for each weather station. A regression patching procedure (Hopkinson et al. 2012) was used to correct for biases arising due to differences in record length where possible. 3. Climate normals for each month were interpolated using trivariate splines (latitude, longitude and elevation as spline variables) with partial dependence upon a topographic index of relative elevation and standardised night time MODIS land surface temperature. All models were fit and interpolated using ANUSPLIN 4.4 (Hutchinson & Xu 2013). 4. Daily anomalies were calculated by subtracting daily observations from climate normals and interpolated with full spline dependence upon latitude and longitude 5. Interpolated anomalies were added to interpolated climate normals to obtain the final daily surfaces. 6. Monthly surfaces are calculated as an aggregation of the daily product. B) Spatial data inputs: 1. Fenner School of Environment and Society and Geoscience Australia. 2008. GEODATA 9 Second Digital Elevation Model (DEM-9S) Version 3. 2. Paget, MJ, King EA. 2008. MODIS Land data sets for the Australian region. CSIRO Marine and Atmospheric Research. Canberra, Australia. https://doi.org/10.4225/08/585c173339358 C) Model performance (3DS-T): Accuracy assessment was conducted with leave-one-out cross validation. Mean monthly minimum temperature RMSE = 0.59 °C Daily minimum temperature RMSE = 1.63 °C Please refer to the linked manuscript for further details.


The research was supported by the Melbourne Research Scholarship (University of Melbourne) with additional funding provided by the State of Victoria Department of Environment, Land, Water and Planning (DELWP) through the Integrated Forest Ecosystem Research (iFER) program.


Creative Commons Attribution 4.0 International Licence


University of Melbourne (Australia), CSIRO (Australia)


Stewart, Stephen; Nitschke, Craig (2018): Climate Victoria: Minimum Temperature (3DS-TM; 9 second, approx. 250 m). v1. CSIRO. Data Collection. https://doi.org/10.25919/5c183912b47c7


All Rights (including copyright) University of Melbourne, CSIRO 2018.


The metadata and files (if any) are available to the public.

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Location Details

33°58′48″ S


39°9′36″ S


149°58′39″ E


140°57′36″ E


WGS84


More about this Collection

Stephen Stewart


Experimental Scientist





Raster




eng


UTF8


Climatology/Meteorology/Atmosphere


About this Project

Acquired





Stephen Stewart


Craig Nitschke


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