Sentinel-2 Imagery: NDVI Raw

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, land cover, plant health, deforestation 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 NDVI Raw (Normalized Difference vegetation index) computed as NIR(Band8)-Red(Band4)/NIR(Band8)+Red(Band4). The Colorized version of this layer is NDVI Colormap. 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, Color-Infrared 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月正式停用。目前尚未确定替代项目，不建议将其用于生产环境，其功能与内容可能在未另行通知的情况下发生变更。 本图层基于Sentinel-2 10米分辨率13波段多光谱影像实时渲染生成。本影像图层可用于可视化与分析，直接从AWS上的Sentinel-2数据集拉取数据，并每日更新最新影像。 该影像图层可应用于多种场景，包括但不限于植被监测、土地覆盖分类、植物健康评估、森林砍伐监测与环境监测。 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：所有距海岸20公里以内的近岸水域、所有面积大于100平方公里的岛屿、所有欧盟成员国岛屿、所有封闭海域（例如里海）以及地中海。 注：超出任务基线（详见《任务需求文档》）的感兴趣区域将被评估，若有充足资源支持，可将其纳入基线范围。 时间覆盖范围：地球任意点位的重访周期为每5天一次。本图层每日更新最新影像，设计包含近14个月内采集的影像。如需获取14个月以上的历史影像，可创建自定义影像服务。可用影像数量因地理位置而异。 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方式，显示近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的命名格式为：[年][月][日]T[时][分][秒]_[UTM（通用横轴墨卡托，Universal Transverse Mercator）分区代码][纬度带][方格编号]_[序列编号]。更多信息…… 注意：未使用过滤条件加载完整归档数据可能影响性能。 分析就绪性：本影像图层已完成大气顶部（Top of Atmosphere, TOA）校正，可直接用于分析。 可视化渲染：默认渲染方式为归一化差分植被指数（Normalized Difference Vegetation Index, NDVI）原始值，计算公式为(NIR(B8) - Red(B4)) / (NIR(B8) + Red(B4))。本图层的着色版本采用NDVI配色渲染。波段组合与计算指数的渲染（或显示）通过栅格函数从源影像实时生成。用户可选择多种预定义栅格函数，或创建自定义函数。可用渲染方案包括：带动态范围调整（Dynamic Range Adjustment, DRA）的农业影像、带DRA的水深影像、带DRA的彩红外影像、带DRA的自然色影像、带DRA的短波红外影像、带DRA的地质影像、着色化归一化差分水分指数（Normalized Difference Moisture Index, NDMI）、归一化差分建筑指数（Normalized Difference Built-Up Index, NDBI）、归一化差分水体指数（Normalized Difference Water Index, NDWI）原始值、带植被红边（Vegetation Red Edge, VRE）的NDWI原始值、带VRE的NDVI原始值（NDRE）、仅VRE波段的NDVI原始值、NDVI原始值、归一化燃烧比、NDVI配色渲染。 多光谱波段信息： 1 海岸气溶胶波段：0.433-0.453μm，60m分辨率 2 蓝波段：0.458-0.523μm，10m分辨率 3 绿波段：0.543-0.578μm，10m分辨率 4 红波段：0.650-0.680μm，10m分辨率 5 植被红边缘波段1：0.698-0.713μm，20m分辨率 6 植被红边缘波段2：0.733-0.748μm，20m分辨率 7 植被红边缘波段3：0.773-0.793μm，20m分辨率 8 近红外(NIR)波段：0.785-0.900μm，10m分辨率 8A 窄带近红外波段：0.855-0.875μm，20m分辨率 9 水汽波段：0.935-0.955μm，60m分辨率 10 短波红外卷云波段：1.365-1.385μm，60m分辨率 11 短波红外1波段：1.565-1.655μm，20m分辨率 12 短波红外2波段：2.100-2.280μm，20m分辨率 附加说明：本图层存在150m空间分辨率的概览图，每季度基于当时的最佳最新影像更新一次。为适配全尺度源影像，可使用“锁定栅格”功能。注意：“锁定栅格”仅可短期用于本图层，因为影像及相关记录对象ID可能每日发生变化。本ArcGIS Server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。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（United States Geological Survey, USGS）联合开发。数据由亚马逊云科技（AWS）作为其开放数据注册表的一部分托管。用户可从AWS上的Sentinel-2数据集、EarthExplorer或哥白尼开放访问中心（Copernicus Open Access Hub）下载影像场景。