# EnMAP L2A Surface Reflectance
*data products*

## Specifications
- **level**: L2A
- **distributor**: dlr
- **spectral range nm**: {"min":420,"max":2450}
- **spectral band count**: 228
- **gsd m**: {"native":30}
- **file format**: Cloud Optimized GeoTIFF
- **access endpoint**: https://eoweb.dlr.de
- **access model**: open
- **licence**: EnMAP Data License v1.1 (free for registered users; registration at planning.enmap.org)
- **primary data portal url**: https://eoweb.dlr.de
- **stac endpoint url**: https://geoservice.dlr.de/eoc/ogc/stac/v1/collections/ENMAP_HSI_L2A
- **use cases**: ["Full VNIR-SWIR surface reflectance input for mineral detection and abundance mapping (clay minerals, carbonates, sulphates, phyllosilicates)","Regional-scale mineral alteration zone mapping in exploration campaigns","Spectral unmixing of mixed mineral assemblages under complex vegetation cover","Lithium and rare earth element prospecting via diagnostic SWIR absorption features","Digital soil mapping: organic matter, iron content, clay mineralogy, particle size","Vegetation stress detection linked to underlying mineral-induced soil chemistry","Inland and coastal water quality analysis (combined land+water L2A mode)"]
- **practical limitations**: ["30 km swath requires multi-pass acquisitions for regional coverage; 27-day nadir repeat limits opportunistic revisit without off-nadir tasking","Delivery within 6 days of downlink; not suitable for near-real-time applications","Registration required at planning.enmap.org before data can be ordered or downloaded","Atmospheric correction (ATCOR-based) may degrade in scenes with heavy aerosol loading, dense cirrus, or complex topography; terrain correction applied but residual artefacts possible in steep terrain","SWIR bands in strong water vapour absorption windows (approximately 1350-1400 nm and 1800-1950 nm) carry near-zero signal and are masked in the standard L2A delivery; some sources report 224 usable bands rather than the 228 instrument bands","30 m GSD insufficient for sub-pixel mineral mapping at deposit scale; field-spectrometry validation required for quantitative abundance products"]
- **known artefacts**: ["DLR STAC collection description reports 224 bands while the instrument specification is 228. The discrepancy reflects masking of water vapour absorption bands in the standard product; users should verify band count from product metadata rather than assuming 228 are all usable.","VNIR and SWIR channels are acquired with an approximately 600 m along-track offset and co-registered to 0.1 pixel accuracy in L1C processing; residual spectral-spatial co-registration artefacts are possible at high-contrast edges","Two L2A processing modes exist: land mode (surface reflectance for land pixels) and combined mode (land plus underwater reflectance for aquatic pixels); mode is selected at ordering time and affects which pixels carry valid surface reflectance values"]
- **last verified date**: "2026-05-19T00:00:00.000Z"
- **verified by**: agency-doc
- **claim status**: agency-verified
- **deployment context**: orbital

## Compositional position
- minerals (topics) --[topic_capabilities]--> EnMAP L2A Surface Reflectance

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Source: https://eo-atlas.org/data_products/enmap-l2a-sr
Maintainer: SpectraWorks B.V. (CC-BY 4.0)