Spectrometer orthorectified surface directional reflectance - mosaic (DP3.30006.001)

The NEON AOP surface directional reflectance data product is an orthorectified (UTM projection) hyperspectral raster product. It is distributed in an open HDF5 format including all 426 bands from the NEON Imaging Spectrometer. It is calibrated, atmospherically corrected, mosaicked, and distributed as scaled reflectance. It includes many QA and ancillary rasters used as inputs to ATCOR for atmospheric correction as well as outputs from ATCOR for diagnostic purposes. L3 reflectance is mosaicked and delivered as 1 km by 1 km tiles with each HDF5 file including the reflectance data and all metadata and ancillary data. The mosaic is created using the most-nadir pixels from the flight lines observed with the least cloud cover. Level 3 (L3) reflectance tiles are used to calculate L3 Vegetation Indices, Water Indices, LAI, and fPAR.

Latency:
AOP data are expected to be available 60 days after the final collection day at a site. Note: Data for airborne collections in 2022 and 2023 are currently being added to the data portal, so availability for these years may not be complete until the end of 2024. L3 reflectance derived from directional reflectance (DP3.30006.001) will still be available for earlier collections (pre 2022) until they are re-processed with all of the latest reflectance corrections, at which point they will be replaced by the .002 revision.