Pre-Delta-X: Spectral Reflectance of Water Surface, Atchafalaya Basin, LA, USA, 2016

This dataset provides measurements of in situ remote-sensing reflectance (Rrs; per steradian) of surface water across Atchafalaya Basin, southern coastal Louisiana, USA within Mississippi River Delta (MRD) floodplain. The in situ spectral reflectance measurements were made during the Pre-Delta-X campaign in Fall 2016 (October 14 to 2). Hand-held spectrometer measurements were collected from a boat at 35 locations selected to represent a range of suspended sediment concentrations and properties from a variety of hydrodynamic and physical settings typically encountered across the Atchafalaya basin. These 35 spectral reflectance measurements were collected at 24 unique sites that coincide with measurements of total suspended solids (TSS). The data serves two main purposes, to ground-truth the remote-sensing reflectance derived from NASA's Airborne Visible-Infrared Imaging Spectrometer - Next Generation (AVIRIS-NG) instrument, and to calibrate and validate algorithms for the retrieval of TSS from AVIRIS-NG.

Data and Resources

Additional Info

Field Value
Maintainer Earthdata Forum
Last Updated August 18, 2026, 03:24 (UTC)
Created April 1, 2025, 18:26 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id 08d1054f-f372-483f-9659-efcd3b613787
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier 10.3334/ORNLDAAC/1804
license https://www.usa.gov/government-works
modified 2026-08-10T22:16:03Z
programCode {026:000}
publisher ORNL_DAAC
resource-type Dataset
source_datajson_identifier true
source_hash b09fe2272a0e4d35dc5d1d1e15a2df28e7c42eca405dd95c1c010a19e1ebbab8
source_schema_version 1.1
spatial ["CARTESIAN", [{"WestBoundingCoordinate": -91.4859, "NorthBoundingCoordinate": 29.744, "EastBoundingCoordinate": -90.9964, "SouthBoundingCoordinate": 29.4168}]]
temporal 2016-10-14/2016-10-21
theme {"Earth Science"}