Namoi mean annual rainfall time series prediction

## **Abstract** \n\nThis dataset was derived by the Bioregional Assessment Programme from a source dataset. The source dataset is identified in the Lineage field in this metadata statement. The processes undertaken to produce this derived dataset are described in the History field in this metadata statement\n\n\n\nThe data contains mean annual rainfall for whole of Namoi subregion from 1900 to 2012. The last 30 years of data (1983 to 2012) is used to project rainfall data for three 30-year blocks starting from 2013 to 2102 using rainfall scaling factors.\n\n## **Purpose** \n\nThe data is used in the AWRA-L/R model to project future runoff under baseline and coal resource development pathway.\n\n\n\nThe data is also used to plot time series of observed (1900 to 2012) and projected (2013 to 2102) annual precipitation averaged over the Namoi subregion using the script climate.m that takes input extends to three 30-year periods with scaling factors. bsmooth.m returns weighted smoothing of vector \\[x\\] over a window of length lwin = 23 years. The resulting plot is shown in NAM261 report.\n\n## **Dataset History** \n\nThis resource was created using BAWAP data. This source data was is the Bureau of Meteorology rainfall grids. The annual data were generated from daily data.\n\n## **Dataset Citation** \n\nBioregional Assessment Programme (2017) Namoi mean annual rainfall time series prediction. Bioregional Assessment Derived Dataset. Viewed 12 March 2019, http://data.bioregionalassessments.gov.au/dataset/74aeaba9-1c47-443e-8940-2befe8ff8dce.\n\n## **Dataset Ancestors** \n\n* **Derived From** [Mean climate variables for all subregions](https://data.gov.au/data/dataset/3f568840-0c77-4f74-bbf3-6f82d189a1fc)\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项目（Bioregional Assessment Programme）基于源数据集衍生而来。源数据集的相关信息详见本元数据声明的“谱系（Lineage）”字段，而本衍生数据集的生成流程则记载于本元数据声明的“历史（History）”字段。

本数据集涵盖了1900年至2012年整个纳莫伊次区域（Namoi subregion）的年平均降雨量数据。研究人员将以1983年至2012年这最近30年的观测数据为基础，结合降雨缩放因子，对2013年至2102年期间的三个连续30年时段的降雨量进行预估。

## **用途**
本数据集可应用于AWRA-L/R模型，用于预估基准情景与煤炭资源开发路径下的未来径流量。

此外，本数据集还可借助`climate.m`脚本绘制纳莫伊次区域的年降雨量时间序列，其中既包含1900年至2012年的观测数据，也涵盖2013年至2102年的预估数据；该脚本支持以缩放因子为输入，覆盖三个连续30年时段。而`bsmooth.m`函数可对长度为`lwin=23`年的滑动窗口内的向量`[x]`进行加权平滑处理。最终生成的可视化结果已刊载于NAM261研究报告中。

## **数据集历史**
本资源基于BAWAP数据生成，其源数据为澳大利亚气象局（Bureau of Meteorology）的降雨格点数据集。年降雨量数据均由逐日观测数据计算得到。

## **数据集引用**
生物区域评估项目（2017）：纳莫伊次区域年平均降雨量时间序列预估数据集。生物区域评估项目衍生数据集。2019年3月12日访问，链接：http://data.bioregionalassessments.gov.au/dataset/74aeaba9-1c47-443e-8940-2befe8ff8dce。

## **数据集溯源**
* **衍生自** [所有次区域平均气候变量数据集](https://data.gov.au/data/dataset/3f568840-0c77-4f74-bbf3-6f82d189a1fc)
* **衍生自** [BILO格点气候数据集：1900年至2012年逐日气候数据](https://data.gov.au/data/dataset/7aaf0621-a0e5-4b01-9333-53ebcb1f1c14)