Daily Penman ET grids in CSV text file format 1981 to 2013

## **Abstract** \n\nThe dataset was derived by the Bioregional Assessment Programme. This dataset was derived from multiple datasets. You can find a link to the parent datasets in the Lineage Field in this metadata statement. The History Field in this metadata statement describes how this dataset was derived.\n\n\n\nTime series daily Penman potential ET from 1 Jan 1981 through 31 Dec 2012, for each mainland Australia 0.05 degree resolution grid cell to the east of the WA border. Data are in Comma Delimited format (.csv) with date and value for each day.\n\n## **Dataset History** \n\nThis dataset is created as per the Donohue et al (2010) paper using the fully physically based Penman formulation of potential evapotranspiration, except that daily wind speed grids used here were generated with a spline (i.e., ANUSPLIN) as per McVicar et al (2008), not the TIN as per Donohue et al (2010). For comprehensive details regarding the generation of some of these datasets (i.e., net radiation, Rn) see the details provided in Donohue et al (2009).\n\n\n\nDonohue, R.J., McVicar, T.R. and Roderick, M.L. (2010) Assessing the ability of potential evaporation formulations to capture the dynamics in evaporative demand within a changing climate. Journal of Hydrology. 386(1-4), 186-197. doi:10.1016/j.jhydrol.2010.03.020\n\nDonohue, R.J., McVicar, T.R. and Roderick, M.L., (2009) Generating Australian potential evaporation data suitable for assessing the dynamics in evaporative demand within a changing climate. CSIRO: Water for a Healthy Country Flagship, pp 43. http://www.clw.csiro.au/publications/waterforahealthycountry/2009/wfhc-evaporative-demand-dynamics.pdf\n\nMcVicar, T.R., Van Niel, T.G., Li, L.T., Roderick, M.L., Rayner, D.P., Ricciardulli, L. and Donohue, R.J. (2008) Wind speed climatology and trends for Australia, 1975-2006: Capturing the stilling phenomenon and comparison with near-surface reanalysis output. Geophysical Research Letters. 35, L20403, doi:10.1029/2008GL035627\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (2013) Daily Penman ET grids in CSV text file format 1981 to 2013. Bioregional Assessment Derived Dataset. Viewed 09 October 2017, http://data.bioregionalassessments.gov.au/dataset/f7453c88-4b5c-44b8-aa1f-3b4f47a504c0.\n\n## **Dataset Ancestors** \n\n* **Derived From** [BILO Gridded Climate Data: Daily Climate Data for each year from 1900 to 2012](https://data.gov.au/data/dataset/7aaf0621-a0e5-4b01-9333-53ebcb1f1c14)\n\n

**摘要**

本数据集由生物区域评估计划（Bioregional Assessment Programme）编制，源自多份基础数据集。您可在本元数据（metadata）记录的谱系字段（Lineage Field）中获取父级数据集的链接，本元数据记录的历史字段（History Field）则详细说明了本数据集的衍生流程。

本数据集包含1981年1月1日至2012年12月31日的逐日彭曼潜在蒸散量（Penman potential ET）时间序列数据，覆盖澳大利亚本土西澳州边界以东的全部0.05度分辨率网格单元。数据采用逗号分隔值格式（.csv）存储，每条记录包含当日日期与对应蒸散量数值。

**数据集历史**

本数据集依据Donohue等人2010年的研究文献编制，采用完全基于物理机制的彭曼潜在蒸散量计算公式，但与原文献不同的是，本数据集所使用的逐日风速网格数据依据McVicar等人2008年的研究方法，通过样条插值法（即ANUSPLIN）生成，而非原文献所用的不规则三角网（TIN）插值方法。如需了解部分数据集（如净辐射（net radiation, Rn））的详细生成流程，请参阅Donohue等人2009年的相关文献。

Donohue, R.J.、McVicar, T.R. 与 Roderick, M.L.（2010）：《评估潜在蒸发公式在气候变化背景下捕捉蒸发需求动态的能力》，《水文学杂志》，第386卷第1-4期，第186-197页，DOI:10.1016/j.jhydrol.2010.03.020

Donohue, R.J.、McVicar, T.R. 与 Roderick, M.L.（2009）：《生成适用于评估气候变化背景下蒸发需求动态的澳大利亚潜在蒸发数据》，澳大利亚联邦科学与工业研究组织（CSIRO）：健康国家水资源旗舰项目，第43页，链接：http://www.clw.csiro.au/publications/waterforahealthycountry/2009/wfhc-evaporative-demand-dynamics.pdf

McVicar, T.R.、Van Niel, T.G.、Li, L.T.、Roderick, M.L.、Rayner, D.P.、Ricciardulli, L. 与 Donohue, R.J.（2008）：《1975-2006年澳大利亚风速气候学与趋势：捕捉静风现象并与近地表再分析输出结果对比》，《地球物理研究通讯》，第35卷，L20403，DOI:10.1029/2008GL035627

**数据集引用**

生物区域评估计划（2013）：《1981-2013年CSV文本格式逐日彭曼潜在蒸散量网格数据》，生物区域评估衍生数据集，2017年10月9日访问，链接：http://data.bioregionalassessments.gov.au/dataset/f7453c88-4b5c-44b8-aa1f-3b4f47a504c0

**数据集溯源**

* **衍生自** [BILO网格化气候数据：1900-2012年逐年逐日气候数据](https://data.gov.au/data/dataset/7aaf0621-a0e5-4b01-9333-53ebcb1f1c14)