View source for ACCESS-S1 Hindcast Data


<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000">'''<span style="font-size:14pt"><span style="font-family:">ACCESS-S1 Hindcast Data</span></span>'''</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:12pt"><span style="font-family:">ACCESS-S1 is the Bureau of Meteorology's coupled-model seasonal prediction system.</span></span></span></span></span></span></span>

<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000">[http://www.bom.gov.au/research/projects/ACCESS-S/ http://www.bom.gov.au/research/projects/ACCESS-S/]</span></span></span></span></span>

<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:12pt"><span style="font-family:">The hindcast dataset is freely available for research purposes.</span></span></span></span></span></span></span>

<span style="font-size:11pt"><span style="line-height:15.693333625793457px"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:12pt"><span style="line-height:17.1200008392334px"><span style="font-family:">To access the data, you will need to request access to Project ub7 via my.nci.org.au</span></span></span></span></span></span></span></span>

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=== <span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000">'''<span style="font-size:14pt"><span style="font-family:">Hindcast Information</span></span>'''</span></span></span></span></span> ===

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000">'''<span style="font-size:12pt"><span style="font-family:">Years</span></span>'''<span style="font-size:12pt"><span style="font-family:">: 23 Years (1990-2012)</span></span></span></span></span></span></span>

<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000">'''<span style="font-size:12pt"><span style="font-family:">Starts Dates</span></span>'''<span style="font-size:12pt"><span style="font-family:">: 1st, 9th, 17th 25th of each month</span></span></span></span></span></span></span>

<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000">'''<span style="font-size:12pt"><span style="font-family:">Ensembles</span></span>'''<span style="font-size:12pt"><span style="font-family:">: For each start date there are 11 hindcasts (i.e., an 11-member ensemble)</span></span></span></span></span></span></span>

<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000">'''<span style="font-size:12pt"><span style="font-family:">Lead times</span></span>'''<span style="font-size:12pt"><span style="font-family:">: All hindcasts are out to 6 months into the future</span></span></span></span></span></span></span>

<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000">'''<span style="font-size:12pt"><span style="font-family:">Location</span></span>'''<span style="font-size:12pt"><span style="font-family:">: /g/data/ub7/access-s1/hc</span></span></span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif">'''<span style="font-size:12pt"><span style="font-family:">Dataset</span></span>'''</span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif">'''<span style="font-size:12pt"><span style="font-family:">Description</span></span>'''</span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif">'''<span style="font-size:12pt"><span style="font-family:">Sub-directory</span></span>'''</span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">5km calibrated data</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">Forecasts containing daily data on a 5x5km grid over Australia. The values have been calibrated using quantile-quantile mapping technique. Key variables include rainfall, max/min temperature, and surface variables normally required to drive agricultural models (eg. wind, radiation, evaporation etc). Ideal for interfacing to Applications tools e.g. pasture growth models etc</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">calibrated_5km_v3</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">5km bias-corrected data</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">Forecasts containing daily data on a 5x5km grid over Australia. The values have been bias corrected (mean bias corrected) and is ideal for scientists who want to do their own calibration.. Key variables include rainfall, max/min temperature, and surface variables normally required to drive agricultural models (eg. wind, radiation, evaporation etc). Ideal for scientists wanting to explore calibration techniques.</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">biascorrected_5km_v3</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">60km raw atmosphere</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">Raw uncalibrated atmospheric and land surface model output. Dataset is global and on the model grid (~60km). Includes a wide range of atmospheric surface and 3D variables and land surface temperature and moisture.</span></span></span></span></span>

<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">Ideal for advanced researchers who can do their own bias correction.</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">raw_model/atmos</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">25km raw ocean</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">Raw uncalibrated ocean and sea-ice surface model output. Dataset is global and on the model grid (~25km). Currently only ocean surface temperature and sea level are available.</span></span></span></span></span>

<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">Ideal for advanced researchers who can do their own bias correction.</span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="font-size:12pt"><span style="font-family:">raw_model/ocean</span></span></span></span></span>

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=== '''Directory structure''' ===

<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:12pt"><span style="font-family:">The location and name of each output file is typically as follows:</span></span></span></span></span></span></span>
<pre style="margin:0cm 0cm 0.0001pt"><span style="font-size:10pt"><span style="font-family:" courier="" new""=""><span style="caret-color:#000000"><span style="color:#000000">{location}/{system}/{var}/{period}/{ensemble}/{type}_{var}_{YYYYMMDD}_{ensemble}.nc</span></span></span></span></pre>

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*<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:10pt"><span style="font-family:">system: atmos/ocean</span></span></span></span></span></span></span> 
*<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:10pt"><span style="font-family:">period: The time averaging period of the data: daily (daily data), monthly (monthly averages of the daily values)</span></span></span></span></span></span></span> 
*<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:10pt"><span style="font-family:">type: Describes the type of field. Derived primarily from the averaging</span></span></span></span></span></span></span> 
*<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:10pt"><span style="font-family:">period e.g., da=daily; ma=monthly</span></span></span></span></span></span></span> 
*<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:10pt"><span style="font-family:">var: variable</span></span></span></span></span></span></span> 
*<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:10pt"><span style="font-family:">YYYYMMDD: The start date of the hindcast</span></span></span></span></span></span></span> 
*<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:10pt"><span style="font-family:">ensemble: ensemble member (e01..e11 – ensembles 1 to 11; emn – ensemble mean)</span></span></span></span></span></span></span> 

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<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:12pt"><span style="font-family:">Climatologies corresponding to each file are also available with the format:</span></span></span></span></span></span></span>

<span style="font-size:11pt"><span style="line-height:normal"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:10pt"><span style="font-family:">{system}/{var}/{period}/clim_1990-2012/{type}_{var}_clim{MMDD}.nc</span></span></span></span></span></span></span>

<span style="font-size:11pt"><span style="line-height:15.693333625793457px"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:12pt"><span style="line-height:17.1200008392334px"><span style="font-family:">The climatology is the average of each hindcast for a given start day and month (e.g. 1st Jan) over the hindcast period (e.g. 1990-2012) and averaged across all 11 ensemble members. This climatology can be used to create anomalies by subtracting the climatology from the forecast.</span></span></span></span></span></span></span></span>

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<span style="font-size:11pt"><span style="line-height:15.693333625793457px"><span style="font-family:Calibri, sans-serif"><span style="caret-color:#000000"><span style="color:#000000"><span style="font-size:12pt"><span style="line-height:17.1200008392334px"><span style="font-family:">If you have any questions about the data, please contact Griffith Young (</span></span></span>[mailto:griffith.young@bom.gov.au <span style="font-size:12pt"><span style="line-height:17.1200008392334px"><span style="font-family:">griffith.young@bom.gov.au</span></span></span>]<span style="font-size:12pt"><span style="line-height:17.1200008392334px"><span style="font-family:">) or Debbie Hudson (</span></span></span>[mailto:debbie.hudson@bom.gov.au <span style="font-size:12pt"><span style="line-height:17.1200008392334px"><span style="font-family:">debbie.hudson@bom.gov.au</span></span></span>]<span style="font-size:12pt"><span style="line-height:17.1200008392334px"><span style="font-family:">)</span></span></span></span></span></span></span></span>

[[Category:Dataset]]