Storage Tanks

Storage tanks contains the different types of tanks that hold different types of liquids in Fairfax County. The original data capture of the data in this layer was completed in 2013 using stereo models from the 2009 Virginia State imagery. Subsequent to that an update capture was completed in 2022 using stereo models from the 2017 Virginia State imagery. The most recent planimetric update was completed in 2024 using orthoimagery from the 2023 and 2022 Eagleview Orthophotos. The storage tanks layer contains the large holding tanks for water, gasoline, jet fuel or other such liquids. These were identified and captured as the polygon outline of the tank itself. The top and ground elevation of each tank was also measured and included as attributes for the features that was updated in 2022. Contact: Fairfax County Department of Information Technology GIS Division Data Accessibility: Publicly available Update frequency: As Needed Last Revision Date: 3/1/2024 Creation date: 1/1/2013 Layer name: GISMGR.STORAGE_TANKS费尔法克斯县（Fairfax County）储罐数据集收录了该县内用于储存各类液体的多类型储罐。本图层的原始数据采集工作于2013年完成，数据依托2009年弗吉尼亚州（Virginia）影像生成的立体模型（stereo models）获取。此后，项目组于2022年完成更新采集，所用数据源为2017年弗吉尼亚州影像生成的立体模型。最新的平面精度更新工作于2024年完成，本次更新采用的正射影像（orthoimagery）源自2022年与2023年的Eagleview正射影像图（Eagleview Orthophotos）。 本储罐图层涵盖用于储存水、汽油、航空燃油及其他同类液体的大型储罐，此类储罐以自身轮廓的多边形要素形式完成识别与采集。每个储罐的罐顶高程与地面高程均已完成测量，并作为2022年更新的要素属性纳入数据集。 联系方式：费尔法克斯县信息技术部地理信息系统（GIS）分部 数据可及性：公开可用 更新频率：按需更新 最近修订日期：2024年3月1日 创建日期：2013年1月1日 图层名称：GISMGR.STORAGE_TANKS