Sentinel-2 Imagery: Color Infrared with DRA

Retirement Notice: This item is currently in beta and will be retired in December 2026. A replacement item has not been identified at this time. It is not recommended for production use, as functionality and content are subject to change without notice. Sentinel-2, 10m Multispectral 13-band imagery, rendered on-the-fly. Available for visualization and analytics, this Imagery Layer pulls directly from the Sentinel-2 on AWS collection and is updated daily with new imagery. This imagery layer can be used for multiple purposes including but not limited to vegetation, plant health, land cover and environmental monitoring. Geographic Coverage Global Continental land masses from 65.4° South to 72.1° North, with these special guidelines: All coastal waters up to 20 km from the shore All islands greater than 100 km2 All EU islands All closed seas (e.g. Caspian Sea) The Mediterranean Sea Note: Areas of interest going beyond the Mission baseline (as laid out in the Mission Requirements Document) will be assessed, and may be added to the baseline if sufficient resources are identified. Temporal Coverage The revisit time for each point on Earth is every 5 days. This layer is updated daily with new imagery. This imagery layer is designed to include imagery collected within the past 14 months. Custom Image Services can be created for access to images older than 14 months. The number of images available will vary depending on location. Image Selection/Filtering The most recent and cloud free image, for any location, is displayed by default. Any image available, within the past 14 months, can be displayed via custom filtering. Filtering can be done based on Acquisition Date, Estimated Cloud Cover, and Tile ID. Tile_ID is computed as [year][month][day]T[hours][minutes][seconds]_[UTMcode][latitudeband][square]_[sequence]. More… NOTE: Not using filters, and loading the entire archive, may affect performance. Analysis Ready This imagery layer is analysis ready with TOA correction applied. Visual Rendering Default rendering is Color-Infrared (bands 8,4,3) with Dynamic Range Adjustment (DRA).This DRA version enables visualization of the full dynamic range of the images. The non-DRA version of this layer can be viewed by switching to the pre-defined Color Infrared raster function. Bands near-infrared, red, green with dynamic range adjustment applied. Healthy vegetation is bright red while stressed vegetation is dull red. Rendering (or display) of band combinations and calculated indices is done on-the-fly from the source images via Raster Functions. Various pre-defined Raster Functions can be selected or custom functions created. Available renderings include: Agriculture with DRA, Bathymetric with DRA, Natural Color with DRA, Short-wave Infrared with DRA, Geology with DRA, NDMI Colorized, Normalized Difference Built-Up Index (NDBI), NDWI Raw, NDWI - with VRE Raw, NDVI – with VRE Raw (NDRE), NDVI - VRE only Raw, NDVI Raw, Normalized Burn Ratio, NDVI Colormap. Multispectral Bands Band Description Wavelength (µm) Resolution (m) 1 Coastal aerosol 0.433 - 0.453 60 2 Blue 0.458 - 0.523 10 3 Green 0.543 - 0.578 10 4 Red 0.650 - 0.680 10 5 Vegetation Red Edge 0.698 - 0.713 20 6 Vegetation Red Edge 0.733 - 0.748 20 7 Vegetation Red Edge 0.773 - 0.793 20 8 NIR 0.785 - 0.900 10 8A Narrow NIR 0.855 - 0.875 20 9 Water vapour 0.935 - 0.955 60 10 SWIR – Cirrus 1.365 - 1.385 60 11 SWIR-1 1.565 - 1.655 20 12 SWIR-2 2.100 - 2.280 20 Additional Notes Overviews exist with a spatial resolution of 150m and are updated every quarter based on the best and latest imagery available at that time. To work with source images at all scales, the ‘Lock Raster’ functionality is available. NOTE: ‘Lock Raster’ should only be used on the layer for short periods of time, as the imagery and associated record Object IDs may change daily. This ArcGIS Server dynamic imagery layer can be used in Web Maps and ArcGIS Desktop as well as Web and Mobile applications using the REST based Image services API. Images can be exported up to a maximum of 4,000 columns x 4,000 rows per request. Data Source Sentinel-2 imagery is the result of close collaboration between the (European Space Agency) ESA, the European Commission and USGS. Data is hosted by the Amazon Web Services as part of their Registry of Open Data. Users can access the imagery from Sentinel-2 on AWS , EarthExplorer or the Copernicus Open Access Hub to download the scenes.停用通知：本项目目前处于测试阶段，将于2026年12月停用。目前尚未确定替代项目。不建议将其用于生产环境，因其功能与内容可能会在未另行通知的情况下发生变更。 Sentinel-2（哨兵二号）10米分辨率多光谱13波段影像，支持实时渲染。该影像图层可直接从AWS托管的Sentinel-2集合拉取数据，每日更新新影像，可用于可视化与分析。此影像图层可用于多种场景，包括但不限于植被监测、植物健康评估、土地覆盖分析与环境监测。 地理覆盖范围：全球大陆区域（南纬65.4°至北纬72.1°），同时包含以下特殊区域： - 距海岸20公里以内的所有近岸水域 - 面积大于100平方公里的所有岛屿 - 所有欧盟所属岛屿 - 所有封闭海域（例如里海） - 地中海 备注：超出任务基线（详见《任务需求文档》）的感兴趣区域将进行评估，若资源充足可纳入基线范围。 时间覆盖范围：地球任意点位的重访周期为每5天一次。本图层每日更新新影像，设计纳入的影像为过去14个月内采集的数据。如需访问14个月以上的历史影像，可创建自定义影像服务。可用影像数量因区域而异。 影像选择与过滤：默认显示任意位置最新的无云影像。用户可通过自定义过滤，显示过去14个月内的任意可用影像。过滤条件可基于采集日期、估算云量与瓦片ID设置。瓦片ID的计算格式为：[年份][月份][日期]T[小时][分钟][秒]_[UTM编码][纬度带][方格][序列]。更多信息…… 注意：不使用过滤器加载完整存档可能会影响性能。 分析就绪性：本影像图层已完成分析就绪处理，应用了大气顶部（Top-of-atmosphere, TOA）校正。 可视化渲染：默认渲染方式为彩色红外（波段8、4、3），并应用动态范围调整（Dynamic Range Adjustment, DRA）。该DRA版本可实现影像全动态范围的可视化。如需查看非DRA版本的彩色红外影像，可切换至预定义的彩色红外栅格函数（Raster Function）。 渲染采用应用了动态范围调整的近红外、红、绿波段。健康植被呈现亮红色，受胁迫植被则呈暗红色。 波段组合与计算指数的渲染（或显示）可通过栅格函数从源影像实时生成。可选择多种预定义栅格函数，或创建自定义函数。可用渲染模式包括：带DRA的农业模式、带DRA的水深模式、带DRA的自然色彩模式、带DRA的短波红外模式、带DRA的地质模式、归一化差异水分指数（Normalized Difference Moisture Index, NDMI）着色版、归一化差异建筑指数（Normalized Difference Built-Up Index, NDBI）、原始归一化差异水体指数（Normalized Difference Water Index, NDWI）、带植被红边的NDWI（原始版）、带植被红边的NDVI（原始版，即NDRE）、仅带植被红边的NDVI（原始版）、原始NDVI、归一化燃烧比、着色版NDVI。 多光谱波段 |波段编号|波段描述|波长范围(µm)|分辨率(m)| |----|----|----|----| |1|海岸气溶胶|0.433 - 0.453|60| |2|蓝光|0.458 - 0.523|10| |3|绿光|0.543 - 0.578|10| |4|红光|0.650 - 0.680|10| |5|植被红边|0.698 - 0.713|20| |6|植被红边|0.733 - 0.748|20| |7|植被红边|0.773 - 0.793|20| |8|近红外（NIR）|0.785 - 0.900|10| |8A|窄带近红外|0.855 - 0.875|20| |9|水汽|0.935 - 0.955|60| |10|短波红外-卷云|1.365 - 1.385|60| |11|短波红外1|1.565 - 1.655|20| |12|短波红外2|2.100 - 2.280|20| 附加说明 本图层提供空间分辨率为150m的概览图，每季度根据当时的最佳最新影像进行更新。 如需适配所有尺度的源影像，可使用“锁定栅格（Lock Raster）”功能。 注意：“锁定栅格”仅可短期用于本图层，因为影像及关联的记录对象ID可能每日发生变更。 本ArcGIS Server（ArcGIS服务器）动态影像图层可应用于Web地图、ArcGIS Desktop，以及通过基于REST的影像服务API构建的Web与移动应用程序。 单次请求导出的影像最大尺寸为4000列×4000行。 数据源 Sentinel-2影像由欧洲空间局（European Space Agency, ESA）、欧盟委员会与美国地质调查局（USGS）紧密合作产出。数据由亚马逊云服务（Amazon Web Services, AWS）作为其开放数据注册表的一部分托管。用户可通过AWS上的Sentinel-2、EarthExplorer或哥白尼开放获取中心（Copernicus Open Access Hub）下载影像场景。