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| Main Authors: | , , |
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| Format: | Dataset Open Access |
| Language: | en |
| Published: |
PANGAEA
2026
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| Online Access: | https://doi.org/10.1594/PANGAEA.992898 |
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| _version_ | 1867171904192774144 |
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| author | Walbröl, Andreas Dorff, Henning Crewell, Susanne |
| author_facet | Walbröl, Andreas Dorff, Henning Crewell, Susanne |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This data set contains files of vertically integrated water vapour (IWV, also known as precipitable water vapour (pwv)) between the surface and the High Altitude and LOng range (HALO) research aircraft for each research flight of the HALO-(AC)³ campaign carried out in March and April 2022. The IWV has been retrieved from the brightness temperature measurements of the microwave radiometers (passive part) of the HALO microwave package (HAMP). The microwave radiometers measure radiation emitted by the surface, atmospheric gases (mainly water vapour and oxygen) and liquid hydrometeors at 25 channels in the frequency range between 22 and 190 GHz. Due to the uncertainties of the emitted signals of ice-covered parts of the ocean the retrieval is confined to open ocean segments of each research flight, covering the North Atlantic sector of the Arctic between Norway, Svalbard and Greenland. For retrieving IWV, we designed a Multilayer Perceptron Neural Network that has been trained with 12 years of ERA5 data randomly selected between 1 March and 30 April 2001 and 2020 at 15 grid points in the ice-free parts of the Fram Strait. The ERA5 data has been forward simulated with the Passive and Active Microwave radiative TRAnsfer tool (PAMTRA, Mech et al. 2019, doi:10.5194/amt-12-5019-2019) with artificial noise to obtain synthetic HAMP measurements. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_992898 |
| institution | PANGAEA |
| language | en |
| publishDate | 2026 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Integrated water vapour derived from passive microwave measurements over open ocean during the HALO-(AC)³ Campaign in Spring 2022 Walbröl, Andreas Dorff, Henning Crewell, Susanne AC; AC3; Airborne Data; Aircraft; Arctic Amplification; Atmospheric and Earth System Research with HALO – High Altitude and Long Range Research Aircraft; Date/time end; Date/time start; Event label; HALO; HALO_220312a; HALO_220313a; HALO_220314a; HALO_220315a; HALO_220316a; HALO_220320a; HALO_220321a; HALO_220328a; HALO_220329a; HALO_220330a; HALO_220401a; HALO_220404a; HALO_220407a; HALO_220408a; HALO_220410a; HALO_220411a; HALO_220412a; HALO_AC3; HALO-(AC)³; integrated water vapor; LATITUDE; LONGITUDE; microwave radiometer; netCDF file; netCDF file (File Size); Passive microwave radiometer; PMRA; precipitable water vapour (PWV); RF02; RF03; RF04; RF05; RF06; RF07; RF08; RF09; RF10; RF11; RF12; RF13; RF14; RF15; RF16; RF17; RF18; SPP1294 This data set contains files of vertically integrated water vapour (IWV, also known as precipitable water vapour (pwv)) between the surface and the High Altitude and LOng range (HALO) research aircraft for each research flight of the HALO-(AC)³ campaign carried out in March and April 2022. The IWV has been retrieved from the brightness temperature measurements of the microwave radiometers (passive part) of the HALO microwave package (HAMP). The microwave radiometers measure radiation emitted by the surface, atmospheric gases (mainly water vapour and oxygen) and liquid hydrometeors at 25 channels in the frequency range between 22 and 190 GHz. Due to the uncertainties of the emitted signals of ice-covered parts of the ocean the retrieval is confined to open ocean segments of each research flight, covering the North Atlantic sector of the Arctic between Norway, Svalbard and Greenland. For retrieving IWV, we designed a Multilayer Perceptron Neural Network that has been trained with 12 years of ERA5 data randomly selected between 1 March and 30 April 2001 and 2020 at 15 grid points in the ice-free parts of the Fram Strait. The ERA5 data has been forward simulated with the Passive and Active Microwave radiative TRAnsfer tool (PAMTRA, Mech et al. 2019, doi:10.5194/amt-12-5019-2019) with artificial noise to obtain synthetic HAMP measurements. |
| title | Integrated water vapour derived from passive microwave measurements over open ocean during the HALO-(AC)³ Campaign in Spring 2022 |
| topic | AC; AC3; Airborne Data; Aircraft; Arctic Amplification; Atmospheric and Earth System Research with HALO – High Altitude and Long Range Research Aircraft; Date/time end; Date/time start; Event label; HALO; HALO_220312a; HALO_220313a; HALO_220314a; HALO_220315a; HALO_220316a; HALO_220320a; HALO_220321a; HALO_220328a; HALO_220329a; HALO_220330a; HALO_220401a; HALO_220404a; HALO_220407a; HALO_220408a; HALO_220410a; HALO_220411a; HALO_220412a; HALO_AC3; HALO-(AC)³; integrated water vapor; LATITUDE; LONGITUDE; microwave radiometer; netCDF file; netCDF file (File Size); Passive microwave radiometer; PMRA; precipitable water vapour (PWV); RF02; RF03; RF04; RF05; RF06; RF07; RF08; RF09; RF10; RF11; RF12; RF13; RF14; RF15; RF16; RF17; RF18; SPP1294 |
| url | https://doi.org/10.1594/PANGAEA.992898 |