AquaticsNearshore_img__StraitJdF_2022

This aerial imagery mosaic dataset was collected on behalf of the Washington State Department of Natural Resources (WA DNR) during the summer of 2022 in order to map the extent of floating kelp canopies in Washington State. Areas covered include the northern outer coast of Washington, the US portion of the Strait of Juan de Fuca, North Puget Sound, the San Juan Islands, Saratoga Passage & Whidbey Island Basin, WA DNR managed aquatic reserves (Cherry Point AR, Cypress Island AR, and Smith & Minor Islands AR), Admiralty Inlet, Tacoma Narrows, and Squaxin Island. Aerial surveys were conducted during low-tide, slack-current conditions identified by WA DNR for kelp forest monitoring, with some exceptions. This imagery has four bands (Band_1=red, Band_2=green, Band_3=blue, and Band_4=near-infrared) and was collected at 6-inch resolution. Floating kelp is readily visualized using an NGB band combination (near-infrared, green, blue), but can also be seen in some places with standard RGB imagery (red, green, blue). Imagery from this project are distributed as compressed (lossy) MrSID files for accessibility and ease of visualization, and are not suitable for image classification and analysis. These mosaics are a subset of the imagery products generated by this project, please contact the WA DNR Nearshore Habitat Program about other products that are available. These data support WA DNR's statewide long-term monitoring goals by providing high-resolution and large-area visualization of floating kelp canopies. For more information and inquiries about products available at specific locations, contact Danielle Claar, WA DNR, Nearshore Habitat Program at: [e-mail] or [e-mail].本航空影像镶嵌数据集由华盛顿州自然资源部（Washington State Department of Natural Resources，缩写WA DNR）委托采集于2022年夏季，旨在绘制华盛顿州漂浮海藻林的覆盖范围。本次覆盖区域包括华盛顿州北部外海岸、胡安·德富卡海峡美国段、普吉特湾北部、圣胡安群岛、萨拉托加航道与惠德比岛盆地、华盛顿州自然资源部管理的水生保护区（切里角水生保护区（Cherry Point AR）、赛普拉斯岛水生保护区（Cypress Island AR）以及史密斯与米诺群岛水生保护区（Smith & Minor Islands AR））、阿德默勒尔蒂湾、塔科马海峡以及斯夸克辛岛。航空测绘作业于华盛顿州自然资源部划定的适用于海藻林监测的低潮、缓流时段开展，仅存在少量例外情况。本影像包含4个波段（波段1=红光、波段2=绿光、波段3=蓝光、波段4=近红外光），采集分辨率为6英寸。采用NGB波段组合（近红外、绿光、蓝光）可清晰识别漂浮海藻，部分区域通过标准RGB影像（红光、绿光、蓝光）也可观测到漂浮海藻。本项目产出的影像以压缩（有损）MrSID格式分发，以提升可访问性与可视化便捷性，但此类格式不适用于图像分类与分析任务。本次提供的镶嵌影像为本项目产出的影像产品子集，如需了解其他可获取的产品，请联系华盛顿州自然资源部近岸栖息地项目组。本数据集通过提供漂浮海藻林的高分辨率、大区域可视化成果，助力华盛顿州自然资源部实现全州范围内的长期监测目标。如需了解更多信息或查询特定区域的可获取产品，请联系华盛顿州自然资源部近岸栖息地项目组的Danielle Claar，邮箱：[e-mail] 或 [e-mail]。