2010 Index of Stream Condition - Bare Ground 100m Section Summary Table

The ISC2010_BARE_GROUND_S table is the Statistical Summary table for the Bare Ground Metric at the 100m Section level.\n\nThe ISC2010_BARE_GROUND_S table is designed to JOIN to the ISC2010_RIVER_CENTRELINES_S 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_BARE_GROUND_S表为100米河段尺度下的裸地指标（Bare Ground Metric）统计汇总表。
ISC2010_BARE_GROUND_S表设计用于与ISC2010_RIVER_CENTRELINES_S要素类进行属性连接。
维多利亚州的河道状况每5年通过溪流状况指数（Index of Stream Condition, ISC）开展一次评估。环境与初级产业部（Department of Environment and Primary Industries, DEPI）开发了一套方法，利用遥感数据——尤其是激光雷达（LiDAR）与航空摄影——来评估ISC的物理形态与河岸植被（Riparian Vegetation）组分。
2010—2013年间实施了一项全州制图项目，旨在精准制图ISC的物理形态与河岸植被指标。本次项目未对其余ISC指标进行评估，相关数据来源于其他渠道。
物理形态与河岸植被指标产品为矢量制图数据、栅格制图数据以及制图要素的表格汇总统计数据的集合。在本项目语境中，术语“指标（Metrics）”同时涵盖制图要素与汇总统计数据两类内容。
本次使用的遥感数据包括15厘米分辨率真彩色与红外航空摄影，以及四回程多脉冲激光雷达（LiDAR）数据。依托该源数据可衍生出多种栅格数据集，包括数字地形模型（Digital Terrain Models）、坡度、植被高度与植被覆盖度。其中，数字地形与坡度栅格被用于制图物理形态指标，涵盖河床、岸顶与河道中心线；而植被高度与覆盖度栅格则被用于制图河岸植被指标。
项目报告《用于物理河道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）详细阐述了用于创建本数据集的遥感与制图技术路线。