Seafloor Silicate (μmol/l)
收藏资源简介:
Retirement Notice: This item is in mature support as of December 2025 and will be retired in December 2027. A new version of this item is available for your use. Esri recommends updating your maps and apps to use the new version. Silica is most common on the ocean floor beneath cold surface waters as it dissolves quickly in warm water. Silica is formed from the remains of organisms with silica based skeletons like diatoms or radiolarians. When large plankton blooms with a sudden die-off occur massive amounts of diatoms that associate die and contribute to the siliceous material on the seafloor. Silicate directly influences marine primary productivity. Phenomenon Mapped: Seafloor silicate Units: Micromoles per liter Cell Size: 30 arc seconds, approximately 1 km Source Type: Discrete Pixel Type: Unsigned integer Spatial Reference: GCS_WGS_1984 Mosaic Projection: Web Mercator Auxiliary Sphere Extent: Global oceans Source: Marine Conservation Institute (MCI) Citation: Garcia HE, Locarnini RA, Boyer TP, Antonov JI (2006) World Ocean Atlas 2005, Volume 4: Nutrients (phosphate, nitrate, silicate). In: Levitus S, editor. 396 p. NOAA Atlas NESDIS 64, U.S. Government Printing Office, Washington DC. Publication Date: 2006 ArcGIS Server URL: https://oceans2.arcgis.com/arcgis/ The Marine Conservation Institute used this dataset as an input to a predictive habitat model documented in the publication Global Habitat Suitability for Framework-Forming Cold-Water Corals. What can you do with this layer? Visualization: This layer can be used for visualization online in web maps and in ArcGIS Desktop. Analysis: This layer can be used as an input to geoprocessing tools and model builder. Raster Functions: Cartographic Renderer - see this blog for more information.
停用通知:本数据集自2025年12月起进入成熟支持阶段,并将于2027年12月正式停用。目前已有该数据集的新版本可供使用,Esri建议您更新地图与应用程序以适配新版本。 二氧化硅(Silica)是冷水表层海水下方海底最为常见的物质,因其在温水中会快速溶解。二氧化硅由具有硅质骨架的生物遗骸形成,例如硅藻(diatoms)或放射虫(radiolarians)。当大型浮游生物水华伴随突发消亡事件发生时,大量关联硅藻会死亡并为海底沉积物贡献硅质物质。硅酸盐(Silicate)会直接影响海洋初级生产力。 制图监测现象:海底硅酸盐浓度 单位:微摩尔每升 像元尺寸:30角秒,约合1千米 源数据类型:离散型 像素类型:无符号整数 空间参考:GCS_WGS_1984 镶嵌投影:Web Mercator 辅助球体 覆盖范围:全球海洋 数据来源:海洋保护协会(Marine Conservation Institute, MCI) 引用文献:Garcia HE, Locarnini RA, Boyer TP, Antonov JI (2006) 《2005年世界海洋图集 第4卷:营养盐(磷酸盐、硝酸盐、硅酸盐)》,收录于Levitus S主编,全书共396页。美国国家海洋和大气管理局(NOAA)国家环境卫星、数据与信息服务局图集第64号,美国政府印刷局,华盛顿哥伦比亚特区。 发布日期:2006年 ArcGIS Server服务地址:https://oceans2.arcgis.com/arcgis/ 海洋保护协会将本数据集作为输入数据,用于已发表的《造架冷水珊瑚全球生境适宜性》预测生境模型。 您可通过该图层实现以下操作: 可视化:该图层可用于在线网页地图及ArcGIS Desktop中的可视化展示。 分析:该图层可作为地理处理工具与模型构建器的输入数据。 栅格函数:制图渲染器——详见此博客以获取更多信息。



