Helicopter-borne thermal infrared sea ice surface temperature images during the MOSAiC expedition, NetCDF format, version 2
Thielke, Linda; Huntemann, Marcus; Hendricks, Stefan; Jutila, Arttu; Ricker, Robert; Spreen, Gunnar
Thielke, Linda; Huntemann, Marcus; Hendricks, Stefan; Jutila, Arttu; Ricker, Robert; Spreen, Gunnar (2022): Helicopter-borne thermal infrared sea ice surface temperature images during the MOSAiC expedition, NetCDF format, version 2 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.940847,
In: Thielke, L et al. (2022): Helicopter-borne thermal infrared sea ice surface temperatures during the MOSAiC expedition, version 2 [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.941017

ELEVATION: -4285.4 m
O2A REGISTRY URI: https://registry.o2a-data.de/items/4332
CAMPAIGN: PS122/1 (MOSAiC20192020)
BASIS: Polarstern
METHOD/DEVICE: Helicopter (HELI)
COMMENT: first laser scanner and IR camera survey over the MOSAiC floe; IR camera measurements from 05:56:28 to 06:46:04

O2A REGISTRY URI: https://registry.o2a-data.de/items/4332
CAMPAIGN: PS122/1 (MOSAiC20192020)
BASIS: Polarstern
METHOD/DEVICE: Helicopter (HELI)
COMMENT: first laser scanner and IR camera survey over the MOSAiC floe; IR camera measurements from 05:56:28 to 06:46:04

ELEVATION: -4301.5 m
O2A REGISTRY URI: https://registry.o2a-data.de/items/4332
CAMPAIGN: PS122/1 (MOSAiC20192020)
BASIS: Polarstern
METHOD/DEVICE: Helicopter (HELI)
COMMENT: Flight ID 20191020_01 Flight over the floe

COMMENT: Flight ID 20191020_01 Flight over the floe

ELEVATION: -4384.4 m
COMMENT: IR camera data from 01:59:40 (still on heli deck) to 03:22:36; flight to the three L sites and small grid on starboard side of Polarstern: Laser scanner, IR camera, KT19, GoPros

COMMENT: IR camera data from 01:59:40 (still on heli deck) to 03:22:36; flight to the three L sites and small grid on starboard side of Polarstern: Laser scanner, IR camera, KT19, GoPros

COMMENT: IR camera data from 06:25 (on heli deck) to 07:28; one potential loss of Applanix IMU datastream; ALS and IR camera flight, no other instruments to troubleshoot ALS hang-up problems. Not successful. We had to restart the ALS 10 times. Many gaps but suitable coverage around Polarstern. IR camera worked well. Potentially one crash of the Applanix IMU.

COMMENT: Helicopter flight with laser scanner and IR camera along transects to all three L sites. Landing at L2 at the end to exchange landing lights.; IR camera start of first recording until 09:11 before landing at L2; IR camera short acquisition until 09:27 after exchanging landing lights at L2 between L2 and Polarstern at 250ft.

COMMENT: Survey flight over the CO and main floe with laser scanner and IR camera. At the end flight to M8 for ice buoy search survey.; IR camera acquisition until 11:05 during floe survey and before landing at M8.

COMMENT: IR camera measurement until 04:58. Grid over floe (1000ft) after storm1 and strong deformation and cracking. Thereafter flight to L1 at 500ft. Stop of measurements before landing at L1.

COMMENT: Floes survey ALS + IR. After about 20 minutes the ALS stopped working several times and measurements were stopped early.

ELEVATION START: -4398.0 m
ELEVATION END: -4398.0 m
COMMENT: Transect flight to L-sites with ALS and IR camera; IR camera recording start; flight height 1000 ft; speed 90 knt; IR camera recording stop before landing

ELEVATION START: -4398.0 m
COMMENT: Transect flight to L-sites with ALS and IR camera; IR camera recording start; flight height 1000 ft; speed 90 knt; IR camera recording stop before landing

ELEVATION END: -4398.0 m
COMMENT: Transect flight to L-sites with ALS and IR camera; IR camera recording start; flight height 1000 ft; speed 90 knt; IR camera recording stop before landing

ELEVATION START: -4414.1 m
ELEVATION END: -4413.8 m
LOCATION: Arctic Ocean
COMMENT: First leg2 survey with ALS + IR-camera, testing the replaced ALS, getting new heli operators and crew acquainted with surveying. Floe CO grid, mostly aft&port side of PS.; The airborne laserscanner Rieql VQ580 has been replaced with a new similar sensor, S/N 9997784

LOCATION: Arctic Ocean
COMMENT: First leg2 survey with ALS + IR-camera, testing the replaced ALS, getting new heli operators and crew acquainted with surveying. Floe CO grid, mostly aft&port side of PS.; The airborne laserscanner Rieql VQ580 has been replaced with a new similar sensor, S/N 9997784

COMMENT: First leg2 survey with ALS + IR-camera, testing the replaced ALS, getting new heli operators and crew acquainted with surveying. Floe CO grid, mostly aft&port side of PS.; The airborne laserscanner Rieql VQ580 has been replaced with a new similar sensor, S/N 9997784

LOCATION: Arctic Ocean
COMMENT: Continuation of the floe CO grid on the previous day with ALS + IR-camera.

COMMENT: Continuation of the floe CO grid on the previous day with ALS + IR-camera.

COMMENT: Extending the floe CO grid of PS122/2_17-98&99 on 20191224&20191225, outward spiral around PS with ALS + IR-camera.

COMMENT: L-site triangle flight survey with ALS + IR-camera

COMMENT: Floe CO grid

COMMENT: L-site triangle survey

COMMENT: L2 grid, first flight of the day

COMMENT: L1 grid

COMMENT: L3 grid; Survey started only after maintenance work at L3

COMMENT: CO floe grid

COMMENT: L-site triangles

COMMENT: CO floe grid + L2 and back

COMMENT: L-site triangle flight including some low passes over L3 at 500 ft, lead event sampling, following the lead beyond L1,

COMMENT: Lead event grid survey at 500 ft between Polarstern and the lead to the southwest

COMMENT: Lead event re-survey and L3, following a new lead on the way back

COMMENT: CO floe grid survey

COMMENT: Aborted L-site triangle flight, only beginning of the flight because probably cold temperatures caused losing contact to instruments

COMMENT: L-site triangle flight

COMMENT: CO floe grid slightly reduced, plus high altitude (2000 ft) IR towards Dranitsyn

COMMENT: floe grid

COMMENT: L sites

COMMENT: Floe grid