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  • 1
    Publikationsdatum: 2024-04-20
    Beschreibung: During the legs PS106 and PS107 of the RV Polarstern, a Fourier-Transform Infrared (FTIR) spectrometer was used to measure radiation emitted by clouds. Spectra were recorded between 700 cm^-1 (14.29 micrometer) and 1200 cm^-1 (8.33 micrometer). From these spectra, the cloud optical depths and the effective droplet radii were retrieved and the liquid water path (LWP), ice water path (IWP) and the condensed water path (CWP=IWP+LWP) calculated. The errors of the cloud optical depths and the effective droplet radii are the standard deviations of the retrieval, from which the errors of LWP, IWP and CWP were calculated. The averaging kernel matrices describe the sensitivity of the retrieval to the parameters. Cloud base heights were taken from the Polarstern ceilometer CL51. See also: Ceilometer CL51 raw data: https://doi.pangaea.de/10.1594/PANGAEA.883320 https://doi.pangaea.de/10.1594/PANGAEA.883322 https://doi.pangaea.de/10.1594/PANGAEA.883323
    Schlagwort(e): AC3; Arctic; Arctic Amplification; ARK-XXXI/1.1,PASCAL; ARK-XXXI/1.2; ARK-XXXI/2; clouds; Event label; File format; File name; File size; Fourier Transform Infrared Radiometer; FTIR; Polarstern; PS106_0_Underway-13; PS106/1; PS106/2; PS106/2_0_Underway-1; PS107; PS107_0_underway-16; Uniform resource locator/link to file
    Materialart: Dataset
    Format: text/tab-separated-values, 12 data points
    Standort Signatur Einschränkungen Verfügbarkeit
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  • 2
    Publikationsdatum: 2024-04-20
    Beschreibung: In summer 2017, measurements of atmospheric radiance were performed using a mobile emission Fourier Transform Infrared (EM-FTIR) spectrometer. This EM-FTIR spectrometer was carried by the RV Polarstern. Retrievals of cloud parameters were performed from radiance measurements from the 11th of June 2017 until the 11th August 2017 in the Arctic Ocean around Svalbard and the Fram Strait. This dataset contains retrieved cloud optical depths of liquid water and ice water, effective radii of liquid water droplets and ice crystals. From these, the liquid water paths and ice water paths are calculated. The retrieval of microphysical cloud parameters uses spectral radiances between 500cm^-1 and 1200 cm^-1. Retrieval has been done using the Total Cloud Water retrieval (TCWret): https://doi.org/10.5281/ZENODO.4621127 Cloud heights were taken from the Ceilometer CL51, located on the RV Polarstern. Data can be found here: https://doi.pangaea.de/10.1594/PANGAEA.883320 https://doi.pangaea.de/10.1594/PANGAEA.883322 https://doi.pangaea.de/10.1594/PANGAEA.883323
    Schlagwort(e): AC3; Arctic; Arctic Amplification; ARK-XXXI/1.1,PASCAL; ARK-XXXI/1.2; ARK-XXXI/2; clouds; Fourier Transform Infrared Radiometer; FTIR; Polarstern; PS106_0_Underway-13; PS106/1; PS106/2; PS106/2_0_Underway-1; PS107; PS107_0_underway-16
    Materialart: Dataset
    Format: application/x-hdf, 17.9 MBytes
    Standort Signatur Einschränkungen Verfügbarkeit
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