Hyperspectral downward sky leaving radiance observed at 45° zenith angle during cruise M148/2 aboard RV METEOR


Automated continuous above-water hyperspectral calibrated radiometric quantities were observed in the international waters of the Atlantic Ocean during the scientific field campaign M148/2 aboard RV METEOR. The cruise began on 02 July 2018 from Walvis Bay, Namibia and was completed on 20 July 2018 in Las Palmas de Gran Canaria, Spain. A radiometer setup, with two TriOS RAMSES-ACC hyperspectral cosine irradiance meters to measure incoming solar irradiance, four TriOS RAMSES-ARC hyperspectral radiance meters to measure total upward sea surface leaving radiance Lsfc at 45° nadir and sky-leaving radiance Lsky at 45° zenith angle, was installed using a custom-made frame at the bow of RV METEOR. The frame was attached to the bow of the ship with the radiance meters having a 90° azimuthal angle separating them. Quality control involved retaining the Lsfc observations with lowest values (Garaba et al., 2012; Garaba et al., 2015). Data logging was automated using TriOS MSDA XE version 8.9.2 software and further processing was done using Mathworks Matlab 2016a and R software. Processed data was interpolated to 1 nm spectral resolution using PCHIP function in Matlab between 320 and 950 nm. Raw data is available on request.

DOI https://doi.org/10.1594/PANGAEA.924217
Related Identifier https://doi.org/10.3390/s120912545
Related Identifier https://doi.org/10.1364/AO.54.003602
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.924217
Creator Garaba, Shungudzemwoyo Pascal; Thölen, Claudia; Ferdelman, Timothy G; Zielinski, Oliver
Publisher PANGAEA - Data Publisher for Earth & Environmental Science
Publication Year 2020
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Language English
Resource Type Dataset
Format text/tab-separated-values
Size 869632 data points
Discipline Earth System Research
Spatial Coverage (-9.438W, -23.003S, 14.332E, 1.467N)
Temporal Coverage Begin 2018-07-02T11:15:47Z
Temporal Coverage End 2018-07-12T14:16:18Z