2010 Index of Stream Condition - Bank Condition Reach Summary Table

The ISC2010_BANK_CONDITION_R table is the Statistical Summary table for the Bank Condition Metric at the Reach level. The Bank Condition Metric is an assessment of the proportion of the bank face that is eroding above expected rates.\n\nThe ISC2010_BANK_CONDITION_R table is designed to JOIN to the ISC2010_RIVER_CENTRELINES_R feature class.\n\nRiver condition in Victoria is assessed every 5 years using the Index of Stream Condition (ISC). The Department of Environment and Primary Industries (DEPI) developed a methodology to assess the Physical Form and Riparian Vegetation components of the ISC using remote sensing data, specifically LIDAR and aerial photography. \n\nA State Wide mapping project was undertaken in 2010-13 to accurately map the Physical Form and Riparian Vegetation metrics of the ISC . Other ISC metrics were not assessed in the project and were derived from other sources.\n\nThe Physical Form and Riparian Vegetation Metric products are a combination of mapped Vector and Raster data as well as Tabular Summary Statistics about the mapped features. In the context of the project, the term Metrics is used to refer to both the mapped features and the summary statistics. \n\nRemote sensing data used includes 15cm true colour and infra-red aerial photography and four return multi-pulse LiDAR data. This source data was used to derive a variety of Raster data sets including Digital Terrain Models, Slope, Vegetation Height and Vegetation Cover. The Digital Terrain and Slope rasters were used to map Physical Form metrics including Stream Bed, Top of Bank and River Centre Lines while the Vegetation Height and Cover rasters were used to map the Riparian Vegetation metrics.\nThe Project Report "Aerial Remote Sensing for Physical Channel Form and Riparian Vegetation Mapping" describes the remote sensing and mapping approach used to create this data set.

ISC2010_BANK_CONDITION_R表是河段级（Reach level）河岸状况指标的统计汇总表。河岸状况指标用于评估河岸坡面侵蚀速率超出预设基准速率的占比。

ISC2010_BANK_CONDITION_R表设计用于与ISC2010_RIVER_CENTRELINES_R要素类进行属性连接。

维多利亚州每5年采用河流状况指数（Index of Stream Condition, ISC）对河流状况开展评估。澳大利亚环境与初级产业部（Department of Environment and Primary Industries, DEPI）开发了一套方法体系，依托遥感数据（尤其是激光雷达（LIDAR）与航空摄影）对河流状况指数中的物理形态与河岸植被组分进行评估。

2010至2013年间实施了一项全州范围制图项目，旨在精准绘制河流状况指数中的物理形态与河岸植被指标。本项目未对其余河流状况指数指标开展评估，相关数据均取自其他渠道。

物理形态与河岸植被指标成果整合了已制图的矢量（Vector）数据、栅格（Raster）数据，以及针对制图要素的表格汇总统计量。本项目语境中，“指标（Metrics）”一词同时指代制图要素与汇总统计量。

本次采用的遥感数据包括分辨率15厘米的真彩色与红外航空摄影数据，以及四次回波多脉冲激光雷达数据。依托该源数据可生成多种栅格数据集，包括数字地形模型（Digital Terrain Models）、坡度、植被高度与植被覆盖度。数字地形与坡度栅格用于绘制物理形态指标，涵盖河床、堤顶与河道中心线；而植被高度与覆盖度栅格则用于绘制河岸植被指标。

项目报告《面向河道物理形态与河岸植被制图的航空遥感》（"Aerial Remote Sensing for Physical Channel Form and Riparian Vegetation Mapping"）详述了本数据集的遥感与制图实现方法。