Schmithüsen, Holger (2021): Ceilometer CL51 raw data measured during POLARSTERN cruise PS114, links to files [dataset]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.929493
Always quote citation above when using data! You can download the citation in several formats below.
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.
Related to:
von Appen, Wilken-Jon (2018): The Expedition PS114 of the Research Vessel POLARSTERN to the Fram Strait in 2018. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 723, 84 pp, https://doi.org/10.2312/BzPM_0723_2018
Project(s):
Meteorological Long-Term Observations @ AWI (AWI_Meteo)
Coverage:
Median Latitude: 74.752400 * Median Longitude: 2.015760 * South-bound Latitude: 53.877000 * West-bound Longitude: -17.460000 * North-bound Latitude: 80.854000 * East-bound Longitude: 18.997000
Date/Time Start: 2018-07-10T12:00:00 * Date/Time End: 2018-08-03T12:00:00
Event(s):
PS114-track * Latitude Start: 53.567500 * Longitude Start: 8.554800 * Latitude End: 69.650900 * Longitude End: 18.963800 * Date/Time Start: 2018-07-10T00:00:00 * Date/Time End: 2018-08-03T00:00:00 * Location: North Atlantic * Campaign: PS114 * Basis: Polarstern * Method/Device: Underway cruise track measurements (CT)
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:
25 data points
Data
All files referred to in data matrix can be downloaded in one go as ZIP or TAR. Be careful: This download can be very large! To protect our systems from misuse, we require to sign up for an user account before downloading.
| 1 Date/Time | 2 Latitude | 3 Longitude | 4 Binary (Size) [Bytes] | 5 Binary |
|---|---|---|---|---|
| 2018-07-10T12:00 | 53.877 | 7.834 | 7253222 | PCL51-RAW.180710.zip |
| 2018-07-11T12:00 | 57.581 | 5.129 | 6498357 | PCL51-RAW.180711.zip |
| 2018-07-12T12:00 | 62.158 | 4.212 | 7549482 | PCL51-RAW.180712.zip |
| 2018-07-13T12:00 | 66.820 | 4.465 | 7619895 | PCL51-RAW.180713.zip |
| 2018-07-14T12:00 | 71.538 | 4.777 | 5592595 | PCL51-RAW.180714.zip |
| 2018-07-15T12:00 | 76.319 | 4.803 | 6252749 | PCL51-RAW.180715.zip |
| 2018-07-16T12:00 | 79.017 | 4.350 | 5640113 | PCL51-RAW.180716.zip |
| 2018-07-17T12:00 | 79.023 | 4.405 | 6864470 | PCL51-RAW.180717.zip |
| 2018-07-18T12:00 | 79.012 | 7.035 | 6567983 | PCL51-RAW.180718.zip |
| 2018-07-19T12:00 | 79.012 | 7.035 | 5456263 | PCL51-RAW.180719.zip |
| 2018-07-20T12:00 | 78.593 | 0.000 | 5147760 | PCL51-RAW.180720.zip |
| 2018-07-21T12:00 | 79.452 | 0.003 | 5650648 | PCL51-RAW.180721.zip |
| 2018-07-22T12:00 | 79.741 | 4.525 | 6805047 | PCL51-RAW.180722.zip |
| 2018-07-23T12:00 | 79.878 | 4.396 | 5922247 | PCL51-RAW.180723.zip |
| 2018-07-24T12:00 | 80.854 | -0.140 | 5505492 | PCL51-RAW.180724.zip |
| 2018-07-25T12:00 | 80.168 | 0.168 | 5991748 | PCL51-RAW.180725.zip |
| 2018-07-26T12:00 | 78.830 | -2.788 | 6168638 | PCL51-RAW.180726.zip |
| 2018-07-27T12:00 | 79.005 | -5.348 | 5213947 | PCL51-RAW.180727.zip |
| 2018-07-28T12:00 | 79.792 | -17.460 | 6118734 | PCL51-RAW.180728.zip |
| 2018-07-29T12:00 | 79.624 | -11.298 | 6823097 | PCL51-RAW.180729.zip |
| 2018-07-30T12:00 | 77.222 | -9.998 | 6168611 | PCL51-RAW.180730.zip |
| 2018-07-31T12:00 | 76.176 | -5.375 | 5046037 | PCL51-RAW.180731.zip |
| 2018-08-01T12:00 | 73.907 | 5.369 | 5285598 | PCL51-RAW.180801.zip |
| 2018-08-02T12:00 | 71.531 | 15.298 | 6137552 | PCL51-RAW.180802.zip |
| 2018-08-03T12:00 | 69.680 | 18.997 | 2066899 | PCL51-RAW.180803.zip |