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Ringel, Maximilian Harald; Spreen, Gunnar; Huntemann, Marcus (2026): Hyperspectral camera raw data (SPECIM_IQ_01) of nadir melt pond images taken during the RV Polarstern PS149 CONTRASTS cruise (July-August 2025) [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.995758 (DOI registration in progress)

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Published: 2026-07-28

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Abstract:
The data consists of 158 hyperspectral images 512x512 pixels in 204 bands in the wavengths range between 400 - 1000 nm with 2.5 nm step, obtained with the SPECIM IQ hyperspectral camera. All images contain melt pond surfaces and are taken in nadir view (0° incidence angle). See the referenced cruise report for details of the used measurement set-up. The data are raw data in the original SPECIM IQ format. Each data record is a folder (compressed as one file) readable by the Specim IQ software, which is downloadable free of charge from the manufacturer (Specim) after registration. Within the field of view of each scene, there is a white reference plate, which can be used for image calibration to obtain the hemispheric-directional surface reflectances. Out-of-focus white reference still can be used for calibration as the spectral properties are not affected.
We provide some additional parameters to each image if available. For some of the images there are co-located under-pond sea ice thickness measurements which are published in another dataset on PANGAEA (doi not available yet). The images here and the referenced sea ice thickness measurements can be linked using the site names given in the location_unified parameter. These site names are used throughout all publications related to CONTRASTS cruise melt pond observations. For each image there is another site name under location_original which refers to the site names which were chosen in the field and used in the O2A registry. Further hyperspectral images taken during the PS149 CONTRASTS expedition, which have been taken along short transects with an incidence angle of about 40-50°, are available in a separate dataset.
Keyword(s):
Arctic; Arctic Ocean; CONTRASTS; CONTRASTS expedition; Hyperspectral data; hyperspectral imaging; hyperspectral reflectance; melt ponds; Polarstern; PS149; Sea ice
Supplement to:
Ringel, Maximilian Harald; et al. (in prep.): The observed dependence of melt pond reflectance and colour on under-pond sea ice thickness.
Related to:
Bühler, Linnu; Rückert, Janna Elisabeth; Walbröl, Andreas; Mech, Mario; Krobot, Pavel; Ebell, Kerstin; Schnitt, Sabrina; Spreen, Gunnar (2026): Water vapor, mixed-phase clouds, precipitation and sea ice emissivity over the Central Arctic Ocean (VAMPIRE-2): remote sensing and in-situ measurements suite during POLARSTERN cruise PS149 (CONTRASTS) [dataset bibliography]. PANGAEA, https://doi.org/10.1594/PANGAEA.990497
Nicolaus, Marcel (2026): The Expedition PS149 of the Research Vessel POLARSTERN to the Arctic Ocean in 2025. Berichte zur Polar- und Meeresforschung = Reports on Polar and Marine Research, 808, 382 pp, https://doi.org/10.57738/BZPM_0808_2026
Ringel, Maximilian Harald; Spreen, Gunnar; Huntemann, Marcus (2026): Hyperspectral camera raw data (SPECIM_IQ_01) during the RV Polarstern PS149 CONTRASTS cruise (July-August 2025) [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.995759 (same kind of hyperspectral images taken during the same expedition but using a different method and covering different surface kinds)
Project(s):
Arctic Amplification (AC3)
Funding:
Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven (AWI), grant/award no. AWI_PS149_01: Sea Ice Physics (CONTRASTS)
German Research Foundation (DFG), grant/award no. 268020496: TRR 172: ArctiC Amplification: Climate Relevant Atmospheric and SurfaCe Processes, and Feedback Mechanisms
Coverage:
Median Latitude: 83.586808 * Median Longitude: 9.960332 * South-bound Latitude: 82.458685 * West-bound Longitude: -17.895232 * North-bound Latitude: 84.717712 * East-bound Longitude: 34.082174
Date/Time Start: 2025-07-09T13:23:00 * Date/Time End: 2025-08-26T15:47:44
Minimum Elevation: -4073.9 m * Maximum Elevation: -3011.6 m
Event(s):
PS149_13-1 (Ice Station 1a)  * Latitude Start: 83.804469 * Longitude Start: 20.753587 * Latitude End: 83.856951 * Longitude End: 24.252349 * Date/Time Start: 2025-07-09T06:32:22 * Date/Time End: 2025-07-12T18:25:00 * Elevation Start: -4073.9 m * Elevation End: -4071.5 m * O2A Registry URI: https://registry.o2a-data.de/items/8891 * Campaign: PS149 (CONTRASTS; ArcWatch 3) * Basis: Polarstern * Method/Device: Ice station (ICE) * Comment: # Ice Station 1a; Sea ice 1.4m thick on Gangway
PS149_16-1 (Ice Station 2a)  * Latitude Start: 85.022741 * Longitude Start: 13.512829 * Latitude End: 84.686618 * Longitude End: 13.944513 * Date/Time Start: 2025-07-14T12:36:36 * Date/Time End: 2025-07-17T17:58:01 * Elevation Start: -3065.2 m * Elevation End: -3612.9 m * O2A Registry URI: https://registry.o2a-data.de/items/8891 * Campaign: PS149 (CONTRASTS; ArcWatch 3) * Basis: Polarstern * Method/Device: Ice station (ICE) * Comment: # Ice station 2a
PS149_18-1 (Ice Station 3a)  * Latitude Start: 84.482009 * Longitude Start: -17.876229 * Latitude End: 84.349051 * Longitude End: -17.886025 * Date/Time Start: 2025-07-19T17:45:41 * Date/Time End: 2025-07-22T18:00:00 * Elevation Start: -3392.7 m * Elevation End: -3407.1 m * O2A Registry URI: https://registry.o2a-data.de/items/8891 * Campaign: PS149 (CONTRASTS; ArcWatch 3) * Basis: Polarstern * Method/Device: Ice station (ICE) * Comment: # Ice Station 3a
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethod/DeviceComment
1 Event labelEventRingel, Maximilian Harald
2 DATE/TIMEDate/TimeRingel, Maximilian HaraldHyperspectral camera Specim IQGeocode
3 LATITUDELatitudeRingel, Maximilian HaraldHyperspectral camera Specim IQGeocode
4 LONGITUDELongitudeRingel, Maximilian HaraldHyperspectral camera Specim IQGeocode
5 IdentificationIDRingel, Maximilian HaraldHyperspectral camera Specim IQfilename of the corresponding hyperspectral image taken by the SpecimIQ camera.
6 ImageIMAGERingel, Maximilian HaraldHyperspectral camera Specim IQraw image files provided as tar.gz; missing rows: images unusable (overexposed), not included in published dataset
7 Image (File Size)IMAGE (Size)BytesRingel, Maximilian HaraldHyperspectral camera Specim IQraw image files provided as tar.gz; missing rows: images unusable (overexposed), not included in published dataset
8 Ice floe descriptionFloe descrRingel, Maximilian Haralddigit is giving the number of the floe, the letter the visit. For example, "2b" means it is the second visit of floe 2. See cruise report for more details.
9 LocationLocationRingel, Maximilian Haraldoriginal name of the measurement location on the floe. These site names were chosen in the field and used in the O2A registry before the locations_unified have been defined.
10 LocationLocationRingel, Maximilian Haraldunified name of the measurement location on the floe. These site names are used throughout all publications related to CONTRASTS melt pond observations.
11 Transect lengthTransect lmRingel, Maximilian HaraldTape measuredistance along the transect.
12 AzimuthAzimdegRingel, Maximilian HaraldAnglemeterangle of the camera's viewing direction relative to the sun azimuthal angle.
13 Camera heightCam heightmRingel, Maximilian HaraldRuler stick (RULER)height of the hyperspectral camera above melt pond water surface.
14 Light descriptionLight descrRingel, Maximilian Haraldlight conditions during the image.
15 CommentCommentRingel, Maximilian Harald
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
1405 data points

Data

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1 
Event		2 
Date/Time
(Hyperspectral camera Specim IQ)		3 
Latitude
(Hyperspectral camera Specim IQ)		4 
Longitude
(Hyperspectral camera Specim IQ)		5 
ID
(filename of the corresponding...)		6 
IMAGE
(raw image files provided as t...)		7 
IMAGE (Size) [Bytes]
(raw image files provided as t...)		8 
Floe descr
(digit is giving the number of...)		9 
Location
(original name of the measurem...)		10 
Location
(unified name of the measureme...)		11 
Transect l [m]
(distance along the transect.,...)		12 
Azim [deg]
(angle of the camera's viewing...)		13 
Cam height [m]
(height of the hyperspectral c...)		14 
Light descr
(light conditions during the i...)		15 
Comment
PS149_13-1 2025-07-09T13:23:0083.7684129520.83562669PS149_2025-07-09_002PS149_2025-07-09_002.tar.gz119.9 MBytes1aROV_Pond_OneR1_rovOnePond310Diffuse incident sunlight. Sun visible.
PS149_13-12025-07-09T13:26:0083.7680996520.83648408PS149_2025-07-09_0031aROV_Pond_OneR1_rovOnePond310Diffuse incident sunlight. Sun visible.
PS149_13-12025-07-09T14:09:0083.7634342720.85001891PS149_2025-07-09_004PS149_2025-07-09_004.tar.gz127.3 MBytes1aROV_Pond_TwoR1_rovTwoPond80Diffuse incident sunlight. Sun visible.
PS149_13-12025-07-09T14:11:0083.7632530220.85088019PS149_2025-07-09_005PS149_2025-07-09_005.tar.gz145.9 MBytes1aROV_Pond_TwoR1_rovTwoPond80Diffuse incident sunlight. Sun visible.
PS149_13-12025-07-11T10:19:0083.7634666722.31623483PS149_2025-07-11_0011aOcean_Pond_1R1_oceanPond_pos1355Overcast. Sun not visible.Very blue, bubbly pond bottom. Drained after visit 1 -> Not visited again.
PS149_13-12025-07-11T10:30:0083.7641756122.32500754PS149_2025-07-11_0021aOcean_Pond_2R1_oceanPond_pos245Overcast. Sun not visible.Very blue, bubbly pond bottom. Drained after visit 1 -> Not visited again.
PS149_13-12025-07-11T10:32:0083.7642577322.32644142PS149_2025-07-11_003PS149_2025-07-11_003.tar.gz103.1 MBytes1aOcean_Pond_2R1_oceanPond_pos245Overcast. Sun not visible.Very blue, bubbly pond bottom. Drained after visit 1 -> Not visited again.
PS149_13-12025-07-11T13:58:0083.7748048922.50179885PS149_2025-07-11_0041aTorbens_Pond_1R1_dronePond_pos13.302.40Overcast. Sun not visible.
PS149_13-12025-07-11T14:09:1983.7751316522.51220815PS149_2025-07-11_005PS149_2025-07-11_005.tar.gz103.5 MBytes1aTorbens_Pond_2R1_dronePond_pos28.002.40Overcast. Sun not visible.
PS149_13-12025-07-11T14:20:5483.7756015222.52397844PS149_2025-07-11_006PS149_2025-07-11_006.tar.gz107.3 MBytes1aTorbens_Pond_3R1_dronePond_pos328.002.40Overcast. Sun not visible.
PS149_13-12025-07-11T14:28:2583.7758421722.53126595PS149_2025-07-11_007PS149_2025-07-11_007.tar.gz93.6 MBytes1aTorbens_Pond_4R1_dronePond_pos434.002.40Overcast. Sun not visible.
PS149_13-12025-07-11T14:33:1183.7759720022.53587142PS149_2025-07-11_008PS149_2025-07-11_008.tar.gz102 MBytes1aTorbens_Pond_5R1_dronePond_pos539.002.40Overcast. Sun not visible.
PS149_16-1 2025-07-17T11:14:0284.7177116214.03358333PS149_2025-07-17_001PS149_2025-07-17_001.tar.gz120.9 MBytes2aTorbens_PondR2_dronePondNo tape, approximate positions. Only three positions.
PS149_16-12025-07-17T15:11:0884.6955894114.01802525PS149_2025-07-17_002PS149_2025-07-17_002.tar.gz124.8 MBytes2aDavids_PondR2_transmittancePond
PS149_16-12025-07-17T15:43:3384.6928978313.99984047PS149_2025-07-17_003PS149_2025-07-17_003.tar.gz102.3 MBytes2aDavids_PondR2_transmittancePond
PS149_16-12025-07-17T15:54:5684.6921079013.99435940PS149_2025-07-17_004PS149_2025-07-17_004.tar.gz157.7 MBytes2aDavids_PondR2_transmittancePond
PS149_16-12025-07-17T15:57:4484.6873175713.97146482PS149_2025-07-17_005PS149_2025-07-17_005.tar.gz86.3 MBytes2aTorbens_PondR2_dronePondNo tape, approximate positions. Only three positions.
PS149_16-12025-07-17T17:07:3784.6868966513.96611779PS149_2025-07-17_006PS149_2025-07-17_006.tar.gz91.7 MBytes2aTorbens_PondR2_dronePondNo tape, approximate positions. Only three positions.
PS149_18-1 2025-07-21T13:58:1084.41066507-17.89523207PS149_2025-07-21_001PS149_2025-07-21_001.tar.gz107 MBytes3aTorbens_Pond_1R3_dronePond_pos13.002802.50Sunny. No clouds.Very blue pond color without bubbles.
PS149_18-12025-07-21T14:10:1384.41011681-17.89283011PS149_2025-07-21_002PS149_2025-07-21_002.tar.gz87.3 MBytes3aTorbens_Pond_2R3_dronePond_pos212.002802.50Sunny. No clouds.Very blue pond color without bubbles.
PS149_18-12025-07-21T14:20:0084.40967323-17.89139984PS149_2025-07-21_003PS149_2025-07-21_003.tar.gz113.5 MBytes3aTorbens_Pond_3R3_dronePond_pos324.002802.50Sunny. No clouds.Very blue pond color without bubbles.
PS149_18-12025-07-21T15:06:5084.40677826-17.87795862PS149_2025-07-21_004PS149_2025-07-21_004.tar.gz115.8 MBytes3aLinxins_Pond_1R3_shallowPond92.60Sunny. No clouds.
PS149_18-12025-07-21T15:09:0584.40603989-17.87737473PS149_2025-07-21_005PS149_2025-07-21_005.tar.gz115.4 MBytes3aLinxins_Pond_1R3_shallowPond9
PS149_18-12025-07-22T09:38:3884.37210096-17.88698005PS149_2025-07-22_002PS149_2025-07-22_002.tar.gz111.5 MBytes3aDavids_Pond_1R3_sslPond_pos22.00Sunny with some altostratus cloud fields. Sun from behind.Refrozen water surface (0.5cm ice layer). Lower tripod height than rest of images.
PS149_18-12025-07-22T09:45:0684.37202545-17.88680903PS149_2025-07-22_003PS149_2025-07-22_003.tar.gz85.8 MBytes3aDavids_Pond_2R3_sslPond_pos36.00Sunny with some altostratus cloud fields. Sun from behind.Refrozen water surface (0.5cm ice layer). Strange yellow-ish color. Noisy NIR.
PS149_18-12025-07-22T09:48:0084.37198126-17.88682674PS149_2025-07-22_004PS149_2025-07-22_004.tar.gz93.1 MBytes3aDavids_Pond_2R3_sslPond_pos36.00Sunny with some altostratus cloud fields. Sun from behind.Refrozen water surface (0.5cm ice layer). Strange yellow-ish color. Noisy NIR.
PS149_18-12025-07-22T09:49:1784.37197203-17.88675937PS149_2025-07-22_005PS149_2025-07-22_005.tar.gz88.6 MBytes3aDavids_PondR3_sslPondSunny with some altostratus cloud fields. Sun from behind.Refrozen water surface (0.5cm ice layer).
PS149_18-12025-07-22T10:00:1284.37184810-17.88622754PS149_2025-07-22_006PS149_2025-07-22_006.tar.gz115.5 MBytes3aDavids_Pond_3R3_sslPond_pos412.00Sunny with some altostratus cloud fields. Sun from behind.Refrozen water surface (0.5cm ice layer). Bubbly ice.
PS149_18-12025-07-22T10:08:0984.37174562-17.88468566PS149_2025-07-22_007PS149_2025-07-22_007.tar.gz113.1 MBytes3aDavids_Pond_4R3_sslPond_pos527.00Sunny with some altostratus cloud fields. Sun from behind.Refrozen water surface (0.5cm ice layer). Bubbly ice with holes.
PS149_18-12025-07-22T10:14:2984.37168596-17.88414833PS149_2025-07-22_008PS149_2025-07-22_008.tar.gz118.2 MBytes3aDavids_Pond_5R3_sslPond_pos639.00Sunny with some altostratus cloud fields. Sun from behind.No refrozen surface anymore. Rotten ice with holes and some biology.
PS149_21-1 2025-07-26T13:02:3282.6232772226.73285186PS149_2025-07-26_011PS149_2025-07-26_011.tar.gz156.4 MBytes1bTorbens_Pond_1R1_dronePond_pos13.30
PS149_21-12025-07-26T13:12:4882.6226636626.73259576PS149_2025-07-26_012PS149_2025-07-26_012.tar.gz99.5 MBytes1bTorbens_Pond_2R1_dronePond_pos28.00
PS149_21-12025-07-26T13:23:4082.6221035526.73287216PS149_2025-07-26_013PS149_2025-07-26_013.tar.gz109.9 MBytes1bTorbens_Pond_3R1_dronePond_pos328.00
PS149_21-12025-07-26T13:25:3082.6219794226.73269270PS149_2025-07-26_014PS149_2025-07-26_014.tar.gz126.9 MBytes1bTorbens_Pond_3R1_dronePond_pos328.00
PS149_21-12025-07-26T13:31:2182.6216210526.73279683PS149_2025-07-26_015PS149_2025-07-26_015.tar.gz101.3 MBytes1bTorbens_Pond_4R1_dronePond_pos434.00
PS149_21-12025-07-26T13:32:4982.6215154926.73270597PS149_2025-07-26_016PS149_2025-07-26_016.tar.gz124.6 MBytes1bTorbens_Pond_4R1_dronePond_pos434.00
PS149_21-12025-07-26T13:40:4882.6209911726.73236739PS149_2025-07-26_017PS149_2025-07-26_017.tar.gz140.4 MBytes1bTorbens_Pond_5R1_dronePond_pos539.00
PS149_21-12025-07-26T13:42:2482.6208863426.73205076PS149_2025-07-26_018PS149_2025-07-26_018.tar.gz100.9 MBytes1bTorbens_Pond_5R1_dronePond_pos539.00
PS149_21-12025-07-27T09:43:0382.5423214526.84320655PS149_2025-07-27_001PS149_2025-07-27_001.tar.gz99.6 MBytes1bShared_Pond_1R1_eastDeformedPond2.85Overcast. Sun not visible.Pott holes. David measured draft of 1.05m and ice thickness of 0.8m.
PS149_21-12025-07-27T09:46:1582.5422426326.84501757PS149_2025-07-27_002PS149_2025-07-27_002.tar.gz129.1 MBytes1bShared_Pond_1R1_eastDeformedPond2.85Overcast. Sun not visible.Pott holes. David measured draft of 1.05m and ice thickness of 0.8m.
PS149_21-12025-07-27T09:57:1882.5420757326.84954985PS149_2025-07-27_003PS149_2025-07-27_003.tar.gz99.2 MBytes1bShared_Pond_2R1_middleDeformedPond2.85Overcast. Sun not visible.Pott holes. Biology dots. David measured draft of 1.05m and ice thickness of 0.8m.
PS149_21-12025-07-27T09:58:5082.5420395826.85048459PS149_2025-07-27_004PS149_2025-07-27_004.tar.gz127.1 MBytes1bShared_Pond_2R1_middleDeformedPond2.85Overcast. Sun not visible.Pott holes. Biology dots. David measured draft of 1.05m and ice thickness of 0.8m.
PS149_21-12025-07-27T10:08:3782.5419586126.85445908PS149_2025-07-27_005PS149_2025-07-27_005.tar.gz125 MBytes1bShared_Pond_3R1_westDeformedPond2.85Overcast. Sun not visible.Biology dots. David measured draft of 1.05m and ice thickness of 0.8m.
PS149_21-12025-07-27T10:57:5782.5405688426.87985125PS149_2025-07-27_0061bLead_Pond_1R1_westLeadPond2.80Overcast. Sun not visible.Very thin pond in old lead. Under ice salinity 21 PSU -> Still fresh pond, not mixed with ocean water.
PS149_21-12025-07-27T11:10:5882.5403881926.88793686PS149_2025-07-27_0071bLead_Pond_2R1_eastLeadPond2.80Overcast. Sun not visible.Very thin pond in old lead. Under ice salinity 21 PSU -> Still fresh pond, not mixed with ocean water.
PS149_21-12025-07-27T11:13:4482.5403517126.88959131PS149_2025-07-27_0081bLead_Pond_2R1_eastLeadPond2.80Overcast. Sun not visible.Very thin pond in old lead. Under ice salinity 21 PSU -> Still fresh pond, not mixed with ocean water.
PS149_21-12025-07-28T13:56:5082.4883161928.28121525PS149_2025-07-28_0011bGradient_Pond_1R1_gradientPond_pos12.77Overcast (ship measurements)In total 5 drill holes across gradient from bright pond bottom towards dark pond bottom. At drill hole 1.
PS149_21-12025-07-28T14:01:3982.4884261228.28449408PS149_2025-07-28_0021bGradient_Pond_2R1_gradientPond_pos22.77Overcast (ship measurements)In total 5 drill holes across gradient from bright pond bottom towards dark pond bottom. Between drill holes 2 and 3.
PS149_21-12025-07-28T14:06:5982.4885319528.28837914PS149_2025-07-28_0031bGradient_Pond_3R1_gradientPond_pos32.77Overcast (ship measurements)In total 5 drill holes across gradient from bright pond bottom towards dark pond bottom. Between drill holes 3 and 4.
PS149_21-12025-07-28T14:11:4882.4886240828.29201648PS149_2025-07-28_0041bGradient_Pond_4R1_gradientPond_pos42.77Overcast (ship measurements)In total 5 drill holes across gradient from bright pond bottom towards dark pond bottom. At drill hole 5.
PS149_25-1 2025-07-30T15:32:1483.7332819016.13084846PS149_2025-07-30_013PS149_2025-07-30_013.tar.gz123.6 MBytes2bTorbens_Pond_1R2_dronePond_pos12.30Overcast (ship measurements)
PS149_25-12025-07-30T15:33:3083.7331167716.13166197PS149_2025-07-30_0142bTorbens_Pond_1R2_dronePond_pos12.30Overcast (ship measurements)
PS149_25-12025-07-30T15:41:4183.7319417216.13683601PS149_2025-07-30_0152bTorbens_Pond_2R2_dronePond_pos29.50Overcast (ship measurements)
PS149_25-12025-07-30T15:47:2483.7311243716.14024100PS149_2025-07-30_0162bTorbens_Pond_3R2_dronePond_pos315.70Overcast (ship measurements)
PS149_25-12025-07-30T15:56:0283.7299015616.14551303PS149_2025-07-30_017PS149_2025-07-30_017.tar.gz98 MBytes2bTorbens_Pond_4R2_dronePond_pos424.50Overcast (ship measurements)
PS149_25-12025-07-30T15:57:1783.7297199616.14621549PS149_2025-07-30_0182bTorbens_Pond_4R2_dronePond_pos424.50Overcast (ship measurements)
PS149_25-12025-07-30T16:01:3783.7291056816.14883437PS149_2025-07-30_019PS149_2025-07-30_019.tar.gz112.8 MBytes2bTorbens_Pond_5R2_dronePond_pos528.20Overcast (ship measurements)
PS149_25-12025-07-30T16:02:5983.7289267016.14980837PS149_2025-07-30_0202bTorbens_Pond_5R2_dronePond_pos528.20Overcast (ship measurements)
PS149_25-12025-07-30T16:30:2483.7262887216.15672441PS149_2025-07-30_021PS149_2025-07-30_021.tar.gz112.5 MBytes2bDavids_Pond_1R2_neTransmittancePond2802.90Overcast (ship measurements)
PS149_25-12025-07-30T16:31:5383.7261098116.15732568PS149_2025-07-30_022PS149_2025-07-30_022.tar.gz141.2 MBytes2bDavids_Pond_1R2_neTransmittancePond2802.90Overcast (ship measurements)
PS149_25-12025-07-30T16:37:4883.7252883116.15993216PS149_2025-07-30_023PS149_2025-07-30_023.tar.gz112.5 MBytes2bDavids_Pond_2R2_sTransmittancePond3002.90Overcast (ship measurements)
PS149_25-12025-07-30T16:44:5483.7243715516.16226334PS149_2025-07-30_024PS149_2025-07-30_024.tar.gz112.6 MBytes2bDavids_Pond_3R2_snTransmittancePond2952.90Overcast (ship measurements)
PS149_25-12025-07-30T16:46:1783.7241981016.16272250PS149_2025-07-30_025PS149_2025-07-30_025.tar.gz134.9 MBytes2bDavids_Pond_3R2_snTransmittancePond2952.90Overcast (ship measurements)
PS149_25-12025-07-31T10:39:2283.7097906617.20824606PS149_2025-07-31_001PS149_2025-07-31_001.tar.gz120.2 MBytes2bMilka_Pond_1R2_milkaPond_pos1Overcast. Sun visible. (ship measurements, Panomax camera)
PS149_25-12025-07-31T10:41:1383.7099013117.21025186PS149_2025-07-31_0022bMilka_Pond_1R2_milkaPond_pos1Overcast. Sun visible. (ship measurements, Panomax camera)
PS149_25-12025-07-31T10:47:2083.7101570517.21740186PS149_2025-07-31_003PS149_2025-07-31_003.tar.gz122.1 MBytes2bMilka_Pond_2R2_milkaPond_pos2Overcast. Sun visible. (ship measurements, Panomax camera)
PS149_25-12025-07-31T10:50:0483.7102580317.22095728PS149_2025-07-31_004PS149_2025-07-31_004.tar.gz108.6 MBytes2bMilka_Pond_3R2_milkaPond_pos3Overcast. Sun visible. (ship measurements, Panomax camera)
PS149_25-12025-07-31T10:53:0383.7104257017.22485291PS149_2025-07-31_005PS149_2025-07-31_005.tar.gz127.2 MBytes2bMilka_Pond_4R2_milkaPond_pos4Overcast. Sun visible. (ship measurements, Panomax camera)
PS149_25-12025-07-31T10:56:1683.7105610517.22906564PS149_2025-07-31_006PS149_2025-07-31_006.tar.gz117.2 MBytes2bMilka_Pond_5R2_milkaPond_pos5Overcast. Sun visible. (ship measurements, Panomax camera)
PS149_25-12025-07-31T11:00:1083.7107529417.23370185PS149_2025-07-31_007PS149_2025-07-31_007.tar.gz118.1 MBytes2bMilka_Pond_9R2_milkaPond_pos9Overcast. Sun visible. (ship measurements, Panomax camera)
PS149_25-12025-07-31T11:03:2683.7109082517.23811374PS149_2025-07-31_008PS149_2025-07-31_008.tar.gz113.9 MBytes2bMilka_Pond_10_11R2_milkaPond_pos10_pos11Overcast. Sun visible. (ship measurements, Panomax camera)
PS149_25-12025-07-31T11:06:0283.7110271517.24145358PS149_2025-07-31_009PS149_2025-07-31_009.tar.gz109.7 MBytes2bMilka_Pond_12R2_milkaPond_pos12Overcast. Sun visible. (ship measurements, Panomax camera)
PS149_25-12025-08-01T09:48:1583.7270463118.59225671PS149_2025-08-01_001PS149_2025-08-01_001.tar.gz67 MBytes2bBlue_Pond_1R2_bluePond_pos1Overcast. Drizzle.Medium to very blue, homogenous color.
PS149_25-12025-08-01T10:04:5483.7281584618.60529036PS149_2025-08-01_002PS149_2025-08-01_002.tar.gz88.4 MBytes2bBlue_Pond_2R2_bluePond_pos2Overcast. Drizzle.Medium to very blue, homogenous color.
PS149_25-12025-08-01T10:18:5183.7290476818.61729702PS149_2025-08-01_003PS149_2025-08-01_003.tar.gz84.2 MBytes2bBlue_Pond_3R2_bluePond_pos3Overcast. Drizzle.Medium to very blue, homogenous color.
PS149_30-1 2025-08-04T15:35:4583.60903830-12.04625101PS149_2025-08-04_013PS149_2025-08-04_013.tar.gz130.1 MBytes3bDavids_Pond_0R3_sslPond_pos10.00252.30Overcast. Foggy. Sun discernable.Many footsteps.
PS149_30-12025-08-04T15:44:0583.60916126-12.03976585PS149_2025-08-04_014PS149_2025-08-04_014.tar.gz88 MBytes3bDavids_Pond_1R3_sslPond_pos22.00252.30Overcast. Foggy. Sun discernable.
PS149_30-12025-08-04T15:55:4283.60933077-12.03098801PS149_2025-08-04_015PS149_2025-08-04_015.tar.gz87.8 MBytes3bDavids_Pond_2R3_sslPond_pos36.00252.30Overcast. Foggy. Sun discernable.
PS149_30-12025-08-04T16:01:1483.60942155-12.02634070PS149_2025-08-04_016PS149_2025-08-04_016.tar.gz87.8 MBytes3bDavids_Pond_3R3_sslPond_pos412.00252.30Overcast. Foggy. Sun discernable.
PS149_30-12025-08-04T16:04:0883.60946920-12.02422713PS149_2025-08-04_017PS149_2025-08-04_017.tar.gz128.5 MBytes3bDavids_Pond_3R3_sslPond_pos412.00252.30Overcast. Foggy. Sun discernable.
PS149_30-12025-08-04T16:16:4583.60969207-12.01390277PS149_2025-08-04_018PS149_2025-08-04_018.tar.gz89 MBytes3bDavids_Pond_4R3_sslPond_pos527.00252.30Overcast. Foggy. Sun discernable.
PS149_30-12025-08-04T16:18:1783.60972111-12.01281350PS149_2025-08-04_019PS149_2025-08-04_019.tar.gz128.1 MBytes3bDavids_Pond_4R3_sslPond_pos527.00252.30Overcast. Foggy. Sun discernable.
PS149_30-12025-08-04T16:28:2283.60994168-12.00490936PS149_2025-08-04_020PS149_2025-08-04_020.tar.gz106.8 MBytes3bDavids_Pond_5R3_sslPond_pos639.00252.30Overcast. Foggy. Sun discernable.
PS149_30-12025-08-05T10:25:2783.62319512-11.39201247PS149_2025-08-05_002PS149_2025-08-05_002.tar.gz88.6 MBytes3bTorbens_Pond_1R3_dronePond_pos13.002823.05Overcast. Drizzle. Sun not visible.Bubbles and white ice areas vanished. Color still very blue.
PS149_30-12025-08-05T10:26:4683.62324952-11.39150734PS149_2025-08-05_003PS149_2025-08-05_003.tar.gz118.7 MBytes3bTorbens_Pond_1R3_dronePond_pos23.002823.05Overcast. Drizzle. Sun not visible.Bubbles and white ice areas vanished. Color still very blue.
PS149_30-12025-08-05T10:32:3883.62349734-11.38980373PS149_2025-08-05_004PS149_2025-08-05_004.tar.gz78.7 MBytes3bTorbens_Pond_2R3_dronePond_pos212.002823.05Overcast. Drizzle. Sun not visible.Bubbles and white ice areas vanished. Color still very blue.
PS149_30-12025-08-05T10:35:2683.62358974-11.38884402PS149_2025-08-05_005PS149_2025-08-05_005.tar.gz98.1 MBytes3bTorbens_Pond_2R3_dronePond_pos312.002823.05Overcast. Drizzle. Sun not visible.Bubbles and white ice areas vanished. Color still very blue.
PS149_30-12025-08-05T10:40:2083.62380071-11.38750686PS149_2025-08-05_006PS149_2025-08-05_006.tar.gz77.8 MBytes3bTorbens_Pond_3R3_dronePond_pos321.002823.05Overcast. Drizzle. Sun not visible.Bubbles and white ice areas vanished. Color still very blue.
PS149_30-12025-08-05T10:41:4983.62383336-11.38681594PS149_2025-08-05_007PS149_2025-08-05_007.tar.gz99.7 MBytes3bTorbens_Pond_3R3_dronePond_pos321.002823.05Overcast. Drizzle. Sun not visible.Bubbles and white ice areas vanished. Color still very blue.
PS149_30-12025-08-05T10:44:5783.62393055-11.38565206PS149_2025-08-05_008PS149_2025-08-05_008.tar.gz81.2 MBytes3bTorbens_Pond_3R3_dronePond_pos321.002823.05Overcast. Drizzle. Sun not visible.Bubbles and white ice areas vanished. Color still very blue.
PS149_30-12025-08-05T10:50:5283.62410890-11.38344348PS149_2025-08-05_009PS149_2025-08-05_009.tar.gz112.6 MBytes3bTorbens_Pond_3R3_dronePond_pos321.002823.05Overcast. Drizzle. Sun not visible.Bubbles and white ice areas vanished. Color still very blue.
PS149_30-12025-08-05T11:10:2883.62490961-11.36968218PS149_2025-08-05_010PS149_2025-08-05_010.tar.gz90.6 MBytes3bLinxins_Pond_1R3_shallowPond10Overcast. Drizzle. Sun not visible.
PS149_30-12025-08-05T11:11:4483.62496479-11.36924830PS149_2025-08-05_011PS149_2025-08-05_011.tar.gz138.3 MBytes3bLinxins_Pond_1R3_shallowPond10Overcast. Drizzle. Sun not visible.
PS149_30-12025-08-06T10:56:5283.69304418-11.10296947PS149_2025-08-06_001PS149_2025-08-06_001.tar.gz88.2 MBytes3bFishing_Pond_3R3_northFishingPondOvercast (ship measurements, Panomax camera)Some small white bubble fields.
PS149_30-12025-08-06T10:58:4383.69324291-11.10246497PS149_2025-08-06_0023bFishing_Pond_3R3_northFishingPondOvercast (ship measurements, Panomax camera)Some small white bubble fields.
PS149_30-12025-08-06T11:13:2283.69441578-11.09698794PS149_2025-08-06_003PS149_2025-08-06_003.tar.gz92 MBytes3bFishing_Pond_1R3_blueFishingPondOvercast (ship measurements, Panomax camera)Potential false bottom.
PS149_30-12025-08-06T11:14:3883.69451191-11.09617558PS149_2025-08-06_0043bFishing_Pond_1R3_blueFishingPondOvercast (ship measurements, Panomax camera)Potential false bottom.
PS149_30-12025-08-06T11:17:2683.69473944-11.09512086PS149_2025-08-06_005PS149_2025-08-06_005.tar.gz86.5 MBytes3bFishing_Pond_2R3_lightBlueFishingPondOvercast (ship measurements, Panomax camera)
PS149_30-12025-08-06T11:18:4383.69485680-11.09469092PS149_2025-08-06_0063bFishing_Pond_2R3_lightBlueFishingPondOvercast (ship measurements, Panomax camera)
PS149_32-1 2025-08-09T19:11:1383.2353131633.72996072PS149_2025-08-09_013PS149_2025-08-09_013.tar.gz99.7 MBytes1cPolarstern_Pond_1R1_shallowPond_pos1285Sunny. Low sun angle (shadows). Some small reflective ice pieces on top of water.
PS149_32-12025-08-09T19:14:2783.2355197633.73016390PS149_2025-08-09_014PS149_2025-08-09_014.tar.gz99.6 MBytes1cPolarstern_Pond_1R1_shallowPond_pos1285Sunny. Low sun angle (shadows). Some small reflective ice pieces on top of water.
PS149_32-12025-08-09T19:16:4483.2356662833.73024635PS149_2025-08-09_015PS149_2025-08-09_015.tar.gz114.9 MBytes1cPolarstern_Pond_1R1_shallowPond_pos1285Sunny. Low sun angle (shadows). Some small reflective ice pieces on top of water.
PS149_32-12025-08-09T19:26:0083.2362291533.73055030PS149_2025-08-09_016PS149_2025-08-09_016.tar.gz104.7 MBytes1cPolarstern_Pond_2R1_shallowPond_pos2288Sunny. Low sun angle (shadows). Some small reflective ice pieces on top of water.
PS149_32-12025-08-09T19:27:4283.2363427533.73070179PS149_2025-08-09_017PS149_2025-08-09_017.tar.gz115.6 MBytes1cPolarstern_Pond_2R1_shallowPond_pos2288Sunny. Low sun angle (shadows). Some small reflective ice pieces on top of water.
PS149_32-12025-08-09T19:35:1383.2368499733.73115226PS149_2025-08-09_018PS149_2025-08-09_018.tar.gz111.7 MBytes1cPolarstern_Pond_3R1_shallowPond_pos3280Sunny. Low sun angle (shadows). Some small reflective ice pieces on top of water.Directly adjecent to R1_shallowPond_pos4. This spot was a bit darker.
PS149_32-12025-08-09T19:37:2083.2370012633.73120964PS149_2025-08-09_019PS149_2025-08-09_019.tar.gz111.4 MBytes1cPolarstern_Pond_3R1_shallowPond_pos3280Sunny. Low sun angle (shadows). Some small reflective ice pieces on top of water.Directly adjecent to R1_shallowPond_pos4. This spot was a bit darker.
PS149_32-12025-08-09T19:38:5083.2370948433.73121443PS149_2025-08-09_020PS149_2025-08-09_020.tar.gz90.1 MBytes1cPolarstern_Pond_3R1_shallowPond_pos3280Sunny. Low sun angle (shadows). Some small reflective ice pieces on top of water.Directly adjecent to R1_shallowPond_pos4. This spot was a bit darker.
PS149_32-12025-08-09T19:47:5183.2376443333.73223201PS149_2025-08-09_021PS149_2025-08-09_021.tar.gz113.4 MBytes1cPolarstern_Pond_4R1_shallowPond_pos4316Sunny. Low sun angle (shadows). Some small reflective ice pieces on top of water.Directly adjecent to R1_shallowPond_pos3. This spot was a bit brighter.
PS149_32-12025-08-10T15:31:2383.3143460734.06371204PS149_2025-08-10_007PS149_2025-08-10_007.tar.gz93.9 MBytes1cTorbens_Pond_1R1_droneTwoPond2.00204Foggy. Sun visible.Slightly blue, white pond bottom.
PS149_32-12025-08-10T15:33:1283.3144507234.06454492PS149_2025-08-10_0081cTorbens_Pond_1R1_droneTwoPond2.00204Foggy. Sun visible.Slightly blue, white pond bottom.
PS149_32-12025-08-10T15:43:2083.3148645334.06925977PS149_2025-08-10_009PS149_2025-08-10_009.tar.gz99.5 MBytes1cTorbens_Pond_2R1_droneTwoPond7.00204Foggy. Sun visible.Very dark pond bottom.
PS149_32-12025-08-10T15:44:4383.3149454934.07017248PS149_2025-08-10_0101cTorbens_Pond_2R1_droneTwoPond7.00204Foggy. Sun visible.Very dark pond bottom.
PS149_32-12025-08-10T15:56:1083.3153719734.07544479PS149_2025-08-10_0111cTorbens_Pond_3R1_droneTwoPond15.00204Foggy. Sun visible.Very dark pond bottom.
PS149_32-12025-08-10T15:58:1383.3154649434.07633760PS149_2025-08-10_0121cTorbens_Pond_3R1_droneTwoPond15.00204Foggy. Sun visible.Very dark pond bottom.
PS149_32-12025-08-10T16:03:5583.3157226934.07862404PS149_2025-08-10_013PS149_2025-08-10_013.tar.gz105.4 MBytes1cTorbens_Pond_4R1_droneTwoPond28.00204Foggy. Sun visible.Very dark pond bottom.
PS149_32-12025-08-10T16:06:0283.3157737234.07959662PS149_2025-08-10_0141cTorbens_Pond_4R1_droneTwoPond28.00204Foggy. Sun visible.Pond bottom color got a bit brighter again.
PS149_32-12025-08-10T16:11:5483.3159814834.08217426PS149_2025-08-10_015PS149_2025-08-10_015.tar.gz104.9 MBytes1cTorbens_Pond_5R1_droneTwoPond33.00204Foggy. Sun visible.Bright, white pond bottom.
PS149_36-1 2025-08-13T13:15:4484.5039095821.95182015PS149_2025-08-13_001PS149_2025-08-13_001.tar.gz105.2 MBytes2cTorbens_Pond_1R2_dronePond_pos13.50101Overcast. Sun visible. Some altostratus fields visible.Had to move position as old position (2.30m) was covered by snow with footsteps.
PS149_36-12025-08-13T13:25:0884.5043517421.94189795PS149_2025-08-13_002PS149_2025-08-13_002.tar.gz105.2 MBytes2cTorbens_Pond_2R2_dronePond_pos29.50101Overcast. Sun visible. Some altostratus fields visible.Short exposure.
PS149_36-12025-08-13T13:27:2784.5044511021.93964599PS149_2025-08-13_0032cTorbens_Pond_2R2_dronePond_pos29.50101Overcast. Sun visible. Some altostratus fields visible.Long exposure.
PS149_36-12025-08-13T13:35:5784.5049246621.93021489PS149_2025-08-13_004PS149_2025-08-13_004.tar.gz151.6 MBytes2cTorbens_Pond_3R2_dronePond_pos315.70101Overcast. Sun visible. Some altostratus fields visible."Pond bottom came up and broke through. Big hole within pond. Couldn't measure at exactly the same spots. Drillings were done one day later were pond was changed again. Drilling measurements only rough estimate. Pond water stratified. Upper layer: 0.9 PSU & 0.3�C; lower layer: 19 PSU & -1.6�C"
PS149_36-12025-08-13T13:45:0884.5055124021.92044687PS149_2025-08-13_005PS149_2025-08-13_005.tar.gz120.5 MBytes2cTorbens_Pond_4R2_dronePond_pos424.50101Overcast. Sun visible. Some altostratus fields visible."Short exposure. Couldn't measure at exactly the same spots. Drillings were done one day later were pond was changed again. Drilling measurements only rough estimate. Pond water stratified. Upper layer: 0.9 PSU & 0.3�C; lower layer: 19 PSU & -1.6�C"
PS149_36-12025-08-13T13:47:3184.5056742421.91788087PS149_2025-08-13_0062cTorbens_Pond_4R2_dronePond_pos424.50101Overcast. Sun visible. Some altostratus fields visible."Long exposure. Couldn't measure at exactly the same spots. Drillings were done one day later were pond was changed again. Drilling measurements only rough estimate. Pond water stratified. Upper layer: 0.9 PSU & 0.3�C; lower layer: 19 PSU & -1.6�C"
PS149_36-12025-08-13T14:08:2584.5072870721.89627991PS149_2025-08-13_007PS149_2025-08-13_007.tar.gz119.9 MBytes2cTorbens_Pond_5R2_dronePond_pos528.20101Overcast. Sun visible. Some altostratus fields visible."Not in the white bottom area anymore. Either wrongly location note or bottom changed. Lower tripod height due to malfunction of tripod. Without both extensions. Pond water stratified. Upper layer: 0.9 PSU & 0.3�C; lower layer: 19 PSU & -1.6�C"
PS149_36-12025-08-14T13:49:3384.6000142321.56663983PS149_2025-08-14_007PS149_2025-08-14_007.tar.gz96.2 MBytes2cMilka_Pond_1R2_milkaPond_pos19Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T14:24:1784.6016420521.56076617PS149_2025-08-14_008PS149_2025-08-14_008.tar.gz103.1 MBytes2cMilka_Pond_2R2_milkaPond_pos29Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T14:30:0684.6019368621.55942084PS149_2025-08-14_009PS149_2025-08-14_009.tar.gz95.4 MBytes2cMilka_Pond_3R2_milkaPond_pos39Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T14:31:1484.6019831321.55919722PS149_2025-08-14_0102cMilka_Pond_3R2_milkaPond_pos39Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T14:36:2484.6022409121.55827966PS149_2025-08-14_011PS149_2025-08-14_011.tar.gz100.5 MBytes2cMilka_Pond_4R2_milkaPond_pos49Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T14:38:0184.6023599321.55800977PS149_2025-08-14_0122cMilka_Pond_4R2_milkaPond_pos49Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T14:46:0384.6027620721.55664404PS149_2025-08-14_013PS149_2025-08-14_013.tar.gz98.7 MBytes2cMilka_Pond_5R2_milkaPond_pos59Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T14:48:1084.6028521121.55648786PS149_2025-08-14_0142cMilka_Pond_5R2_milkaPond_pos59Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T14:54:3084.6032091421.55625352PS149_2025-08-14_015PS149_2025-08-14_015.tar.gz93.5 MBytes2cMilka_Pond_9R2_milkaPond_pos99Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T14:55:4784.6032921021.55617446PS149_2025-08-14_016PS149_2025-08-14_016.tar.gz112.8 MBytes2cMilka_Pond_9R2_milkaPond_pos99Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T15:01:0884.6035603721.55578423PS149_2025-08-14_017PS149_2025-08-14_017.tar.gz102.1 MBytes2cMilka_Pond_10_11R2_milkaPond_pos10_pos119Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T15:03:0584.6037056421.55633436PS149_2025-08-14_018PS149_2025-08-14_018.tar.gz114 MBytes2cMilka_Pond_10_11R2_milkaPond_pos10_pos119Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T15:07:0284.6039248921.55524516PS149_2025-08-14_019PS149_2025-08-14_019.tar.gz109.2 MBytes2cMilka_Pond_12R2_milkaPond_pos129Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T15:08:2484.6040106921.55508590PS149_2025-08-14_020PS149_2025-08-14_020.tar.gz131.9 MBytes2cMilka_Pond_12R2_milkaPond_pos129Overcast (ship measurements, Panomax camera)Drilling measurements were done one day ahead of HS images.
PS149_36-12025-08-14T15:55:2484.6076269021.55888907PS149_2025-08-14_022PS149_2025-08-14_022.tar.gz97.9 MBytes2cBlue_Pond_2R2_bluePond_pos2272Overcast (ship measurements, Panomax camera)Bottom extremely bubbly. Thick bubble layer of about 5-10cm. Feet sank into this layer.
PS149_36-12025-08-14T16:04:3784.6081686121.55905833PS149_2025-08-14_023PS149_2025-08-14_023.tar.gz87.2 MBytes2cBlue_Pond_1R2_bluePond_pos1272Overcast (ship measurements, Panomax camera)Bottom extremely bubbly. Thick bubble layer of about 5-10cm. Feet sank into this layer.
PS149_36-12025-08-14T16:15:4684.6088969221.55935818PS149_2025-08-14_024PS149_2025-08-14_024.tar.gz85.8 MBytes2cBlue_Pond_3R2_bluePond_pos3182Overcast (ship measurements, Panomax camera)Bottom extremely bubbly. Thick bubble layer of about 5-10cm. Feet sank into this layer.
PS149_41-1 2025-08-17T09:16:5882.96301953-12.82123124PS149_2025-08-17_001PS149_2025-08-17_001.tar.gz87.1 MBytes3cLinxins_Pond_1R3_shallowPond130Overcast. Sun not visible.Short exposure.
PS149_41-12025-08-17T09:18:5782.96280477-12.82135678PS149_2025-08-17_0023cLinxins_Pond_1R3_shallowPond130Overcast. Sun not visible.Long exposure.
PS149_41-12025-08-17T15:45:2482.90983544-12.80955087PS149_2025-08-17_003PS149_2025-08-17_003.tar.gz120 MBytes3cTorbens_Pond_1R3_dronePond_pos13.00342Overcast. Sun not visible.No melt pond water anymore. Trampled snow surface.
PS149_41-12025-08-17T16:13:1182.90500689-12.81450502PS149_2025-08-17_004PS149_2025-08-17_004.tar.gz88.4 MBytes3cTorbens_Pond_2R3_dronePond_pos212.00342Overcast. Sun not visible.Waves on surface.
PS149_41-12025-08-17T16:15:5382.90457082-12.81510862PS149_2025-08-17_005PS149_2025-08-17_005.tar.gz89 MBytes3cTorbens_Pond_2R3_dronePond_pos212.00342Overcast. Sun not visible.Short exposure.
PS149_41-12025-08-17T16:18:0682.90417446-12.81571309PS149_2025-08-17_006PS149_2025-08-17_006.tar.gz66 MBytes3cTorbens_Pond_2R3_dronePond_pos212.00342Overcast. Sun not visible.Long exposure.
PS149_41-12025-08-17T16:32:2782.90164987-12.81835936PS149_2025-08-17_007PS149_2025-08-17_007.tar.gz87.2 MBytes3cTorbens_Pond_3R3_dronePond_pos321.00342Overcast. Sun not visible.
PS149_41-12025-08-17T16:34:3082.90129672-12.81889311PS149_2025-08-17_008PS149_2025-08-17_008.tar.gz89.6 MBytes3cTorbens_Pond_3R3_dronePond_pos321.00342Overcast. Sun not visible.
PS149_41-12025-08-18T10:30:2582.77576179-12.82698593PS149_2025-08-18_001PS149_2025-08-18_001.tar.gz91.6 MBytes3cFishing_Pond_3R3_northFishingPond162Sunny. Direct sunlight. Some cirrus clouds.Changed viewing direction compared to station 3b to face the sun and avoid shadows in the image. Small ice chunks on the water surface which were highly reflective.
PS149_41-12025-08-18T10:34:0682.77552063-12.82701753PS149_2025-08-18_002PS149_2025-08-18_002.tar.gz91.8 MBytes3cFishing_Pond_3R3_northFishingPond162Sunny. Direct sunlight. Some cirrus clouds.Changed viewing direction compared to station 3b to face the sun and avoid shadows in the image. Small ice chunks on the water surface which were highly reflective.
PS149_41-12025-08-18T10:47:3782.77461359-12.82727702PS149_2025-08-18_003PS149_2025-08-18_003.tar.gz88.9 MBytes3cFishing_Pond_1R3_blueFishingPond130Sunny. Direct sunlight. Some cirrus clouds.Changed viewing direction compared to station 3b to face the sun and avoid shadows in the image. Small ice chunks on the water surface which were highly reflective.
PS149_41-12025-08-18T10:56:1882.77403042-12.82672571PS149_2025-08-18_004PS149_2025-08-18_004.tar.gz87.7 MBytes3cFishing_Pond_2R3_lightBlueFishingPond130Sunny. Direct sunlight. Some cirrus clouds.Changed viewing direction compared to station 3b to face the sun and avoid shadows in the image. Small ice chunks on the water surface which were highly reflective.
PS149_41-12025-08-18T12:48:1282.76564297-12.82460698PS149_2025-08-18_005PS149_2025-08-18_005.tar.gz156.3 MBytes3cDavids_Pond_1R3_sslPond_pos10.0055Sunny. Direct sunlight. Some cirrus clouds.Trampled snow surface.
PS149_41-12025-08-18T12:56:2882.76508140-12.82363901PS149_2025-08-18_006PS149_2025-08-18_006.tar.gz132.9 MBytes3cDavids_Pond_2R3_sslPond_pos22.0055Sunny. Direct sunlight. Some cirrus clouds.Transition from snow to pond.
PS149_41-12025-08-18T13:10:2082.76416363-12.82257675PS149_2025-08-18_007PS149_2025-08-18_007.tar.gz87.6 MBytes3cDavids_Pond_3R3_sslPond_pos36.0055Sunny. Direct sunlight. Some cirrus clouds."Thin surface ice layer on top of water (0.5cm). Camera slightly tilted towards ""left"" (if viewed from behind)."
PS149_41-12025-08-18T13:17:4782.76361358-12.82226780PS149_2025-08-18_008PS149_2025-08-18_008.tar.gz95.9 MBytes3cDavids_Pond_4R3_sslPond_pos412.0055Sunny. Direct sunlight. Some cirrus clouds.Small ice chunks on the water surface which were highly reflective. Camera slightly tilted upwards.
PS149_41-12025-08-18T13:26:0182.76293476-12.82148460PS149_2025-08-18_009PS149_2025-08-18_009.tar.gz156.2 MBytes3cDavids_Pond_4_1R3_sslPond21.0055Sunny. Direct sunlight. Some cirrus clouds.Addtional image at new location where pond bottom came up which otherwise would not have been imaged.
PS149_41-12025-08-18T13:34:0282.76221590-12.82106259PS149_2025-08-18_010PS149_2025-08-18_010.tar.gz89.7 MBytes3cDavids_Pond_5R3_sslPond_pos527.0055Sunny. Direct sunlight. Some cirrus clouds.Small ice chunks on the water surface which were highly reflective.
PS149_41-12025-08-18T13:41:5082.76151669-12.82109962PS149_2025-08-18_011PS149_2025-08-18_011.tar.gz112.7 MBytes3cDavids_Pond_6R3_sslPond_pos636.0055Sunny. Direct sunlight. Some cirrus clouds.Small ice chunks on the water surface which were highly reflective. Very rough bottom with lots of thaw holes. 39m as noted was again way outside of bottom. Assumption: 36m was original location and 39m wrongly noted down.
PS149_41-12025-08-18T15:25:0382.75319775-12.81510591PS149_2025-08-18_019PS149_2025-08-18_019.tar.gz158.2 MBytes3cCoord_site_6258Sunny. Direct sunlight. Some cirrus clouds.Coordinated measurements with Ruschle and Melinda. Probably the edge of old melt pond.
PS149_41-12025-08-18T15:27:0682.75300622-12.81502409PS149_2025-08-18_020PS149_2025-08-18_020.tar.gz162.6 MBytes3cCoord_site_6258Sunny. Direct sunlight. Some cirrus clouds.Coordinated measurements with Ruschle and Melinda. Probably the edge of old melt pond.
PS149_46-1 2025-08-23T13:07:3784.1947483418.13639456PS149_2025-08-23_001PS149_2025-08-23_001.tar.gz100.2 MBytes2dCoring_Pond_1R2_gradientPond_pos3_pos4_pos519Overcast. Sun visible.Refrozen pond surface with 3-4cm of solid ice lid. Breaked through to measure pond bottom color. MPD was lower at dark half of the image. Slope increasing towards the dark pond bottom. Thicknesses and MPDs for each core hole see notes in notebook.
PS149_46-12025-08-23T13:18:3484.1944340618.13877400PS149_2025-08-23_002PS149_2025-08-23_002.tar.gz99.3 MBytes2dCoring_Pond_1R2_gradientPond_pos3_pos4_pos519Overcast. Sun visible.
PS149_46-12025-08-23T13:27:2984.1941696718.14044960PS149_2025-08-23_003PS149_2025-08-23_003.tar.gz105.1 MBytes2dCoring_Pond_2R2_gradientPond_pos2_pos_3_pos4_pos5210Overcast. Sun visible.
PS149_46-12025-08-23T13:28:5284.1941428618.14058572PS149_2025-08-23_0042dCoring_Pond_2R2_gradientPond_pos2_pos_3_pos4_pos5210Overcast. Sun visible.
PS149_46-12025-08-23T16:11:1884.1861552018.14131699PS149_2025-08-23_005PS149_2025-08-23_005.tar.gz107.7 MBytes2dBlue_Pond_3R2_bluePond_pos330Overcast. Sun visible.Refrozen pond surface with 4cm ice lid.
PS149_46-12025-08-23T16:13:2084.1860647218.14084283PS149_2025-08-23_006PS149_2025-08-23_006.tar.gz107.7 MBytes2dBlue_Pond_3R2_bluePond_pos330Overcast. Sun visible.Refrozen pond surface with 4cm ice lid.
PS149_46-12025-08-23T16:22:4184.1857742218.13883210PS149_2025-08-23_007PS149_2025-08-23_007.tar.gz115.8 MBytes2dBlue_Pond_1R2_bluePond_pos1330Overcast. Sun visible.Refrozen pond surface with 4cm ice lid.
PS149_46-12025-08-23T16:34:2584.1853549518.13526339PS149_2025-08-23_008PS149_2025-08-23_008.tar.gz114 MBytes2dBlue_Pond_2R2_bluePond_pos2330Overcast. Sun visible.Refrozen pond surface with 4cm ice lid.
PS149_46-12025-08-23T16:35:5884.1852725418.13419292PS149_2025-08-23_009PS149_2025-08-23_009.tar.gz107 MBytes2dBlue_Pond_2R2_bluePond_pos2330Overcast. Sun visible.Removed the 4cm ice lid.
PS149_46-12025-08-23T17:15:1784.1840605918.12268997PS149_2025-08-23_0102dBlue_Pond_2R2_bluePond_pos2330Overcast. Sun visible.Removed the 4cm ice lid.
PS149_46-12025-08-23T17:18:1284.1840090418.12174713PS149_2025-08-23_011PS149_2025-08-23_011.tar.gz116.7 MBytes2dBlue_Pond_2R2_bluePond_pos2330Overcast. Sun visible.Removed the 4cm ice lid.
PS149_47-1 2025-08-26T13:04:0382.45869887-5.70051938PS149_2025-08-26_001PS149_2025-08-26_001.tar.gz128.9 MBytes3dTorbens_Pond_1R3_dronePond_pos13.0058Sunny. Direct sunlight. Some altstratus fields.Refrozen pond surface with 5 cm lid.
PS149_47-12025-08-26T13:08:4282.45868782-5.69446983PS149_2025-08-26_002PS149_2025-08-26_002.tar.gz120.3 MBytes3dTorbens_Pond_2R3_dronePond_pos212.0058Sunny. Direct sunlight. Some altstratus fields.Refrozen pond surface with 5 cm lid.
PS149_47-12025-08-26T13:12:2682.45868545-5.68973852PS149_2025-08-26_003PS149_2025-08-26_003.tar.gz133.1 MBytes3dTorbens_Pond_3R3_dronePond_pos321.0058Sunny. Direct sunlight. Some altstratus fields.Refrozen pond surface with 5 cm lid.
PS149_47-12025-08-26T13:33:2782.45879759-5.67205974PS149_2025-08-26_004PS149_2025-08-26_004.tar.gz135.6 MBytes3dLinxins_Pond_1R3_shallowPond180Sunny. Direct sunlight. Some altstratus fields.Refrozen pond surface with 5 cm lid.
PS149_47-12025-08-26T14:55:0182.46100358-5.56864760PS149_2025-08-26_005PS149_2025-08-26_005.tar.gz129.6 MBytes3dFishing_Pond_1R3_blueFishingPond158Sunny. Direct sunlight. Some altstratus fields.Refrozen pond surface with 5 cm lid.
PS149_47-12025-08-26T15:01:5982.46100241-5.56304907PS149_2025-08-26_006PS149_2025-08-26_006.tar.gz101.9 MBytes3dFishing_Pond_2R3_lightBlueFishingPond150Sunny. Direct sunlight. Some altstratus fields. Clouds in front of sun.Refrozen pond surface with 4.5 cm lid.
PS149_47-12025-08-26T15:07:0782.46099837-5.55825854PS149_2025-08-26_007PS149_2025-08-26_007.tar.gz107.1 MBytes3dFishing_Pond_3R3_northFishingPond178Sunny. Direct sunlight. Some altstratus fields. Clouds in front of sun.Refrozen pond surface with 5 cm lid.
PS149_47-12025-08-26T15:34:5282.46118833-5.54787792PS149_2025-08-26_008PS149_2025-08-26_008.tar.gz122.8 MBytes3dDavids_Pond_3R3_sslPond6.00172Sunny. Direct sunlight. Some altstratus fields.
PS149_47-12025-08-26T15:40:4882.46119614-5.54438857PS149_2025-08-26_009PS149_2025-08-26_009.tar.gz143.8 MBytes3dDavids_Pond_4_1R3_sslPond21.00172Sunny. Direct sunlight. Some altstratus fields.
PS149_47-12025-08-26T15:47:4482.46126363-5.53968414PS149_2025-08-26_010PS149_2025-08-26_010.tar.gz123.5 MBytes3dDavids_Pond_5R3_sslPond27.00172Sunny. Direct sunlight. Some altstratus fields.