Spectral radiance measurements with the hyperspectral and polarized imaging system specMACS during the HALO-(AC)3 field campaign

DOI

During the HALO-(AC)3 campaign, the hyperspectral and polarized imaging system specMACS was integrated into the German research aircraft HALO in a nadir-looking perspective. This dataset contains calibrated spectral radiances in mW/(m2 nm sr) for the shortwave infrared wavelength range between about 1000 and 2400nm measured by the SWIR spectrometer of specMACS. The spectrometer has 320 spatial pixels along a spatial line oriented in across-track direction with a field of view of 35.5 degree and measures at an acquisition frequency of 30Hz. The calibration of the data was performed as described in Ewald et al. (2016). Because of the large size of the data, the calibrated radiances for each research flight were split into different files along the wavelength dimension. Each dataset contains measurements of 20 wavelength channels for the wavelength range given in the file name. Additionally, the dataset includes georeferencing information with viewing zenith and viewing azimuth angles as well as sensor latitude, longitude, and height above WGS84 for every measured pixel as a separate file for every flight. Note that during the first three flights there was some icing of the window in front of the cameras which is visible in the data.

Identifier
DOI https://doi.org/10.1594/PANGAEA.966992
Related Identifier References https://doi.pangaea.de/10.1594/PANGAEA.968885
Related Identifier References https://doi.org/10.5194/amt-9-2015-2016
Related Identifier References https://doi.org/10.5194/amt-17-1419-2024
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.966992
Provenance
Creator Weber, Anna; Pörtge, Veronika ORCID logo; Zinner, Tobias ORCID logo; Mayer, Bernhard ORCID logo
Publisher PANGAEA
Publication Year 2024
Funding Reference German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 268020496 https://gepris.dfg.de/gepris/projekt/268020496 TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms; German Research Foundation https://doi.org/10.13039/501100001659 Crossref Funder ID 28423678 https://gepris.dfg.de/gepris/projekt/28423678
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Representation
Resource Type Dataset
Format text/tab-separated-values
Size 456 data points
Discipline Earth System Research
Spatial Coverage (11.288W, 48.068S, 20.339E, 67.830N)
Temporal Coverage Begin 2022-03-11T00:00:00Z
Temporal Coverage End 2022-04-14T00:00:00Z