AKFlow Stream Gages

These datasets have been developed through a cooperative effort between Interagency Hydrology Committee for Alaska (IHCA) members. The University of Alaska Anchorage's (UAA) Alaska Center for Conservation Science (ACCS) geographer compiled data supplied by individual agency staff from the Alaska Department of Fish and Game (ADF&G), Alaska Department of Natural Resources (ADNR), the National Weather Service's (NWS) Alaska-Pacific River Forecast Center (APRFC), the US Bureau of Land Management (BLM), University of Alaska Fairbanks (UAF), the US Fish and Wildlife Service (USFWS), and the US Geological Survey. AKFlow project staff at ACCS have assembled basic metadata pertaining to each gage's location, status (active or inactive), dates of operation, contact information, and links to available online data where available. The AKFlow inventory also includes 775 polygons representing the upstream drainages for 837 gage records. These drainages were sourced directly from the USGS (https://www.sciencebase.gov/catalog/item/66440867d34e1955f5a427fa) and here https://www.sciencebase.gov/catalog/item/66440948d34e1955f5a427ff or they were derived using current HUC12 drainages from the latest Watershed Boundary Dataset (WBD) and a combination of satellite imagery and a 5 meter digital elevation model (Alaska IfSAR).本数据集由阿拉斯加跨部门水文委员会（Interagency Hydrology Committee for Alaska, IHCA）成员协作开发。安克雷奇阿拉斯加大学（University of Alaska Anchorage, UAA）下属阿拉斯加保护科学中心（Alaska Center for Conservation Science, ACCS）的地理学家，整理汇编了来自以下机构人员提供的原始数据：阿拉斯加鱼类与野生动物部（Alaska Department of Fish and Game, ADF&G）、阿拉斯加自然资源部（Alaska Department of Natural Resources, ADNR）、美国国家气象局（National Weather Service, NWS）阿拉斯加-太平洋河流预报中心（Alaska-Pacific River Forecast Center, APRFC）、美国土地管理局（US Bureau of Land Management, BLM）、费尔班克斯阿拉斯加大学（University of Alaska Fairbanks, UAF）、美国鱼类与野生动物管理局（US Fish and Wildlife Service, USFWS）以及美国地质调查局（US Geological Survey）。阿拉斯加保护科学中心的AKFlow项目团队已整理了每套水文测站的基础元数据，涵盖监测站位置、运行状态（启用/停用）、运行时段、联系方式，以及可获取的在线数据链接（若有）。AKFlow数据集清单还包含775个多边形要素，对应837条水文测站记录的上游汇水区。这些汇水区数据要么直接取自美国地质调查局的公开资源（https://www.sciencebase.gov/catalog/item/66440867d34e1955f5a427fa 与 https://www.sciencebase.gov/catalog/item/66440948d34e1955f5a427ff），要么通过最新流域边界数据集（Watershed Boundary Dataset, WBD）中的现行HUC12汇水区，结合卫星影像与5米分辨率数字高程模型（阿拉斯加IfSAR）生成。