Sentinel-2 Imagery: NDVI Colormap

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 Colormap (Normalized Difference vegetation index with colormap) computed as NIR(Band8)-Red(Band4)/NIR(Band8)+Red(Band4) . The raw version of this layer is NDVI-Raw. Green represents vigorous vegetation and brown represents sparse vegetation. 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 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.退役声明：本项目目前处于测试阶段，将于2026年12月正式退役。目前尚未确定替代项目，因此不建议将其用于生产环境，其功能与内容可能随时变更且不另行通知。 本图层为实时渲染的哨兵二号（Sentinel-2）10米分辨率13波段多光谱影像。本影像图层可用于可视化与分析，直接从亚马逊云科技（Amazon Web Services, AWS）托管的Sentinel-2数据集拉取数据，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、土地覆盖分析、作物健康评估、森林砍伐监测以及环境监控。 地理覆盖范围：覆盖全球大陆区域（南纬65.4°至北纬72.1°），并遵循以下特殊规则： - 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） - 地中海 注意：超出任务基线（详见《任务需求文档》）的感兴趣区域将接受评估，若资源充足则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，设计纳入过去14个月内采集的影像。若需访问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。 图像选择与过滤：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，调取过去14个月内的任意可用影像。过滤条件可包括采集日期、估算云量以及瓦片ID（Tile_ID）。瓦片ID的格式为：[年][月][日]T[时][分][秒]_[UTM编码][纬度带][方格][序列]。更多信息…… 注意：不使用过滤器直接加载完整存档可能会影响性能。 分析就绪特性：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：默认渲染采用归一化差分植被指数（Normalized Difference Vegetation Index, NDVI）配色方案，计算公式为：(近红外波段(Band8) - 红光波段(Band4)) / (近红外波段(Band8) + 红光波段(Band4))。本图层的原始版本为NDVI-Raw。其中绿色代表长势旺盛的植被，棕色代表植被稀疏区域。 波段组合与计算指数的渲染（或显示）通过栅格函数（Raster Function）从源影像实时完成。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）的农业渲染、带DRA的水深渲染、带DRA的彩色红外渲染、带DRA的自然色渲染、带DRA的短波红外渲染、带DRA的地质渲染、着色化归一化差分水分指数（NDMI）、归一化差分建筑指数（Normalized Difference Built-Up Index, NDBI）、原始归一化差分水体指数（NDWI Raw）、带植被红边（VRE）的NDWI（原始版）、带VRE的NDVI（原始版，即归一化差分植被红边指数（Normalized Difference Red Edge Index, NDRE））、仅含植被红边的NDVI（原始版）、原始NDVI。 多光谱波段详情： 1. 波段1：海岸气溶胶（Coastal aerosol），波长范围0.433-0.453μm，分辨率60m 2. 波段2：蓝光（Blue），波长范围0.458-0.523μm，分辨率10m 3. 波段3：绿光（Green），波长范围0.543-0.578μm，分辨率10m 4. 波段4：红光（Red），波长范围0.650-0.680μm，分辨率10m 5. 波段5：植被红边（Vegetation Red Edge），波长范围0.698-0.713μm，分辨率20m 6. 波段6：植被红边（Vegetation Red Edge），波长范围0.733-0.748μm，分辨率20m 7. 波段7：植被红边（Vegetation Red Edge），波长范围0.773-0.793μm，分辨率20m 8. 波段8：近红外（NIR），波长范围0.785-0.900μm，分辨率10m 9. 波段8A：窄幅近红外（Narrow NIR），波长范围0.855-0.875μm，分辨率20m 10. 波段9：水汽（Water vapour），波长范围0.935-0.955μm，分辨率60m 11. 波段10：短波红外-卷云（SWIR – Cirrus），波长范围1.365-1.385μm，分辨率60m 12. 波段11：短波红外1（SWIR-1），波长范围1.565-1.655μm，分辨率20m 13. 波段12：短波红外2（SWIR-2），波长范围2.100-2.280μm，分辨率20m 附加说明：本图层存在空间分辨率为150m的概览图，每季度根据当时的最佳最新影像进行一次更新。若需适配所有比例尺的源影像，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（Object IDs）可能每日发生变化。 本ArcGIS服务器（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与移动应用程序。单次请求导出的影像最大尺寸为4000列×4000行。 数据源：哨兵二号（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）联合研发。数据由亚马逊云科技（Amazon Web Services, AWS）作为其开放数据注册表（Registry of Open Data）的一部分进行托管。用户可通过AWS上的Sentinel-2数据集、地球探索者（EarthExplorer）或哥白尼开放访问中心（Copernicus Open Access Hub）下载影像场景。