Maryland Archived Submerged Aquatic Vegetation - SAV 2009

The 2009 Chesapeake Bay SAV Coverage was mapped from 1:24,000 black and white aerial photography to assess water quality in the Bay. Each area of SAV was interpreted from the rectified photography and classified into one of four density classes by the percentage of cover. The SAV beds were entered into an ArcInfo GIS coverage using quality control procedures. This is a MD iMAP hosted service. Find more information on https://imap.maryland.gov. Feature Service Link: https://mdgeodata.md.gov/archive/rest/services/Biota/MD_ArchivedSubmergedAquaticVegetation/FeatureServer/242009年切萨皮克湾沉水植物（Submerged Aquatic Vegetation, SAV）覆盖范围制图基于1:24000比例尺黑白航空影像完成，旨在评估该海湾的水质状况。所有沉水植物区域均通过正射校正后的航空影像解译，并依据植被覆盖百分比划分为四个密度等级之一。沉水植物床通过质量控制流程录入至ArcInfo地理信息系统覆盖图层中。本数据集为马里兰州MD iMAP托管服务。更多信息请访问 https://imap.maryland.gov。要素服务链接：https://mdgeodata.md.gov/archive/rest/services/Biota/MD_ArchivedSubmergedAquaticVegetation/FeatureServer/24