Maryland Archived Submerged Aquatic Vegetation - SAV 1987

The Chesapeake Bay SAV 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. 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/3本数据集依托1:24000比例尺黑白航空摄影对切萨皮克湾沉水水生植被（Submerged Aquatic Vegetation, SAV）开展解译制图，旨在评估该海湾的水环境质量。研究人员通过经几何校正的航空摄影影像解译每一处沉水水生植被区域，并依据植被覆盖百分比将其划分为四个密度等级之一。本数据集为马里兰州iMAP（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/3