Mean annual climate data clipped to BA_SYD extent

## **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\nThis dataset includes the following parameters clipped to BA_SYD extent.\n\n1) Mean annual BAWAP (Bureau of Meteorology Australian Water Availability Project) rainfall of year 1981 - 2013\n\n2) Mean annual penman PET (potential evapotranspiration) of year 1981 - 2013\n\n3) Mean annual runoff using the 'Budyko-framework' implementation of Choudhury\n\n## **Dataset History** \n\nLineage is as per the BA All mean climate data for Australia except the national data has been clipped to BA SYD extent.\n\n\n\nThe mean annual rainfall data is created from monthly BAWAP grids which is created from daily BILO rainfall. \n\nJones, D. A., W. Wang and R. Fawcett (2009). "High-quality spatial climate data-sets for Australia." Australian Meteorological and Oceanographic Journal 58(4): 233-248.\n\n\n\nThe Mean annual penman PET is created as per the Donohue et al (2010) paper using the fully physically based Penman formulation of potential evapotranspiration, exept 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\n\n\n\nThe Mean annual runoff was created as per the Donohue et al (2010) paper. The data represent the runoff expected from the steady-state 'Budyko curve' longterm mean annual water-energy limit approach using BAWAP precipitation and the Penman potential ET described above.\n\nChoudhury BJ (1999) Evaluation of an empirical equation for annual evaporation using field observations and results from a biophysical model. Journal of Hydrology 216, 99-110.\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 (2014) Mean annual climate data clipped to BA_SYD extent. Bioregional Assessment Derived Dataset. Viewed 18 June 2018, http://data.bioregionalassessments.gov.au/dataset/a8393a45-5e86-431b-b504-c0b2953296f4.\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* **Derived From** [Mean Annual Climate Data of Australia 1981 to 2012](https://data.gov.au/data/dataset/02418c67-f8bb-48a8-88a3-2a5c6b485f78)\n\n

**摘要**
本数据集由生物区域评估计划（Bioregional Assessment Programme）衍生而来，其数据源为多套数据集。您可在本元数据声明的“谱系字段”中获取父数据集的链接，元数据声明中的“历史字段”则说明了本数据集的衍生过程。

本数据集包含以下经BA_SYD范围裁剪后的参数：
1. 1981-2013年澳大利亚气象局水资源可用性项目（BAWAP，Bureau of Meteorology Australian Water Availability Project）年平均降雨量
2. 1981-2013年Penman潜在蒸散量（PET，potential evapotranspiration）年平均值
3. 基于Choudhury的Budyko框架（Budyko-framework）实现的年平均径流量

**数据集历史**
谱系信息参照澳大利亚全域平均气候数据集，仅将全国范围数据裁剪至BA_SYD范围。

年平均降雨量数据由月度BAWAP格点数据生成，而该月度格点数据源自每日BILO降雨量数据。
Jones, D. A., W. Wang and R. Fawcett (2009). "High-quality spatial climate data-sets for Australia." Australian Meteorological and Oceanographic Journal 58(4): 233-248.

本数据集的Penman潜在蒸散量年平均值参照Donohue等人（2010）的研究生成，采用完全基于物理机制的Penman潜在蒸散量计算公式，但与原研究不同的是，本研究使用的每日风速格点数据是按照McVicar等人（2008）的方法通过样条插值（即ANUSPLIN）生成，而非Donohue等人（2010）所用的不规则三角网（TIN，Triangulated Irregular Network）方法。若需了解部分数据集（如净辐射Rn）生成的详细信息，请参阅Donohue等人（2009）的相关内容。

Donohue, 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

Donohue, 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. 澳大利亚联邦科学与工业研究组织（CSIRO，Commonwealth Scientific and Industrial Research Organisation）: Water for a Healthy Country Flagship, pp 43. 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. 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

年平均径流量参照Donohue等人（2010）的研究生成，该数据基于稳态Budyko曲线长期平均年水热限制方法，结合BAWAP降雨量与前文所述的Penman潜在蒸散量计算得到径流量预估结果。

Choudhury BJ (1999) Evaluation of an empirical equation for annual evaporation using field observations and results from a biophysical model. Journal of Hydrology 216, 99-110.

Donohue, 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

Donohue, 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. 澳大利亚联邦科学与工业研究组织（CSIRO，Commonwealth Scientific and Industrial Research Organisation）: Water for a Healthy Country Flagship, pp 43. 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. 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

**数据集引用**
生物区域评估计划（2014）。《裁剪至BA_SYD范围的年平均气候数据集》，生物区域评估衍生数据集。2018年6月18日查阅，http://data.bioregionalassessments.gov.au/dataset/a8393a45-5e86-431b-b504-c0b2953296f4.

**数据集祖先**
* **衍生自** [BILO格点气候数据：1900-2012年每日气候数据](https://data.gov.au/data/dataset/7aaf0621-a0e5-4b01-9333-53ebcb1f1c14)
* **衍生自** [1981-2012年澳大利亚年平均气候数据集](https://data.gov.au/data/dataset/02418c67-f8bb-48a8-88a3-2a5c6b485f78)