Jäkel, Evelyn; Klingebiel, Marcus; Müller, Joshua (2026): Aircraft measurements of spectral solar upward radiances in the Arctic during the COMPEX-EC campaign 2025 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.995175
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Published: 2026-05-29 • DOI registered: 2026-06-27
Abstract:
During the COMPEX-EC campaign performed in April 2025 spectral upward radiances were measured in the Norwegian Sea area using the Spectral Modular Airborne Radiation measurement sysTem (SMART-Albedometer). The data set provides solar spectra (400 - 900 nm) along the flight tracks of seven flights performed by the Polar 5 aircraft in 2 Hz resolution. The nadir-looking radiance inlet has an approximate field of view of 2°.
Related to:
Mech, Mario; Klingebiel, Marcus; Crewell, Susanne; Ehrlich, André; Bruder, Lena; Buhren, Christian; Gebhard, Eduard; van Gelder, Lars; Jansen, Friedhelm; Ludwig, Dennis; Müller, Joshua (2026): Collection of data sets for the Clouds over cOMPlEX environment - EarthCARE (COMPEX-EC) campaign, carried out in Kiruna in spring 2025 [dataset bibliography]. PANGAEA, https://doi.org/10.1594/PANGAEA.983187
Project(s):
Arctic Amplification (AC3)
Funding:
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Coverage:
Median Latitude: 67.821835 * Median Longitude: 20.327558 * South-bound Latitude: 67.821645 * West-bound Longitude: 20.327129 * North-bound Latitude: 67.822004 * East-bound Longitude: 20.327969
Date/Time Start: 2025-04-04T10:39:47 * Date/Time End: 2025-04-15T15:46:27
Event(s):
P5-256_COMPEX-EC_2025_2504040201 (RF01) * Latitude Start: 67.821939 * Longitude Start: 20.327570 * Latitude End: 67.822004 * Longitude End: 20.327969 * Date/Time Start: 2025-04-04T10:39:47 * Date/Time End: 2025-04-04T16:05:47 * Campaign: P5-256_COMPEX-EC_2025 * Basis: POLAR 5 * Method/Device: Aircraft (AC)
P5-256_COMPEX-EC_2025_2504060301 (RF02) * Latitude Start: 67.821986 * Longitude Start: 20.327634 * Latitude End: 67.821877 * Longitude End: 20.327808 * Date/Time Start: 2025-04-06T12:04:14 * Date/Time End: 2025-04-06T16:27:14 * Campaign: P5-256_COMPEX-EC_2025 * Basis: POLAR 5 * Method/Device: Aircraft (AC)
P5-256_COMPEX-EC_2025_2504070401 (RF03) * Latitude Start: 67.821913 * Longitude Start: 20.327732 * Latitude End: 67.821921 * Longitude End: 20.327668 * Date/Time Start: 2025-04-07T11:41:49 * Date/Time End: 2025-04-07T16:01:48 * Campaign: P5-256_COMPEX-EC_2025 * Basis: POLAR 5 * Method/Device: Aircraft (AC)
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | Event label | Event | Jäkel, Evelyn | |||
| 2 | Optional event label | Event 2 | Jäkel, Evelyn | |||
| 3 | Date/Time of event | Date/Time | Jäkel, Evelyn | |||
| 4 | netCDF file | netCDF | Jäkel, Evelyn | Albedometer, Spectral Modular Airborne Radiation measurement sysTem, SMART [0.3 to 2.2 μm] | ||
| 5 | netCDF file (File Size) | netCDF (Size) | Bytes | Jäkel, Evelyn | Albedometer, Spectral Modular Airborne Radiation measurement sysTem, SMART [0.3 to 2.2 μm] |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
7 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 Event | 2 Event 2 | 3 Date/Time | 4 netCDF | 5 netCDF (Size) [Bytes] |
|---|---|---|---|---|
| P5-256_COMPEX-EC_2025_2504040201 | RF01 | 2025-04-04 | COMPEX-EC_20250404_P5_SMART_radiance_RF01.nc | 56.2 MBytes |
| P5-256_COMPEX-EC_2025_2504060301 | RF02 | 2025-04-06 | COMPEX-EC_20250406_P5_SMART_radiance_RF02.nc | 45.5 MBytes |
| P5-256_COMPEX-EC_2025_2504070401 | RF03 | 2025-04-07 | COMPEX-EC_20250407_P5_SMART_radiance_RF03.nc | 43.5 MBytes |
| P5-256_COMPEX-EC_2025_2504080501 | RF04 | 2025-04-08 | COMPEX-EC_20250408_P5_SMART_radiance_RF04.nc | 40.9 MBytes |
| P5-256_COMPEX-EC_2025_2504110601 | RF05 | 2025-04-11 | COMPEX-EC_20250411_P5_SMART_radiance_RF05.nc | 36.7 MBytes |
| P5-256_COMPEX-EC_2025_2504130701 | RF06 | 2025-04-13 | COMPEX-EC_20250413_P5_SMART_radiance_RF06.nc | 57.5 MBytes |
| P5-256_COMPEX-EC_2025_2504150801 | RF07 | 2025-04-15 | COMPEX-EC_20250415_P5_SMART_radiance_RF07.nc | 54.4 MBytes |