Schmithüsen, Holger (2021): Ceilometer CL51 raw data measured during POLARSTERN cruise PS122/1, links to files [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.929524
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Abstract:
The meteorological observatory Polarstern continuously operates a ceilometer to measure cloud height and vertical visibility. The instrument features an upward pointing pulsed diode laser centered at a wavelength of 910nm. Using Light Detection and Ranging (LIDAR) technology the instrument records the backscatter, predominantly caused by hydrometeors such as precipitation and cloud particles. Measurements are taken approximately every 36 seconds. All data published here is left "as recorded", no quality control was applied.
Project(s):
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AFMOSAiC-1_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS122_00: Multidisciplinary drifting Observatory for the Study of Arctic Climate / MOSAiC
Coverage:
Median Latitude: 84.845494 * Median Longitude: 119.623882 * South-bound Latitude: 69.680000 * West-bound Longitude: 18.997000 * North-bound Latitude: 86.599000 * East-bound Longitude: 137.400000
Date/Time Start: 2019-09-20T12:00:00 * Date/Time End: 2019-12-13T12:00:00
Event(s):
PS122/1-track * Latitude Start: 69.679550 * Longitude Start: 18.996650 * Latitude End: 86.593190 * Longitude End: 119.241500 * Date/Time Start: 2019-09-20T17:30:00 * Date/Time End: 2019-12-13T09:04:45 * Location: Arctic Ocean * Campaign: PS122/1 (MOSAiC20192020) * Basis: Polarstern * Method/Device: Underway cruise track measurements (CT) * Comment: Tromsø - Arctic Ocean, MOSAiC Leg 1
Comment:
The ceilometer is mounted 20m above design waterline, the height offset of the instrument was left at the factory default 0m. Hence, readings of cloud height, vertical visibility and vertical backscatter are with respect to the location of installation 20m above sea level.
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DATE/TIME | Date/Time | Schmithüsen, Holger | Geocode | ||
| 2 | LATITUDE | Latitude | Schmithüsen, Holger | Geocode | ||
| 3 | LONGITUDE | Longitude | Schmithüsen, Holger | Geocode | ||
| 4 | Binary Object (File Size) | Binary (Size) | Bytes | Schmithüsen, Holger | Laser ceilometer, Vaisala, CL51 | |
| 5 | Binary Object | Binary | Schmithüsen, Holger | Laser ceilometer, Vaisala, CL51 |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Size:
85 data points