Temperature measurements at Brandallaguna in March 2021
Bottom water temperatures in lakes and the near-shore Arctic Ocean are usually below 4°C. If the water depth is shallow enough, the sea/lake ice freezes to the sea/lake bed and may significantly shift the mean annual temperature below zero. The temperature regime below the water is therefore directl...
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2022
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.950782 2024-09-30T14:31:47+00:00 Temperature measurements at Brandallaguna in March 2021 Miesner, Frederieke Cable, William L Boike, Julia MEDIAN LATITUDE: 78.921503 * MEDIAN LONGITUDE: 11.872443 * SOUTH-BOUND LATITUDE: 78.916016 * WEST-BOUND LONGITUDE: 11.850308 * NORTH-BOUND LATITUDE: 78.945450 * EAST-BOUND LONGITUDE: 11.875611 * DATE/TIME START: 2021-03-25T08:48:13 * DATE/TIME END: 2021-03-27T07:35:06 * MINIMUM ELEVATION: -8.1 m a.s.l. * MAXIMUM ELEVATION: 21.3 m a.s.l. 2022 text/tab-separated-values, 35210 data points https://doi.pangaea.de/10.1594/PANGAEA.950782 https://doi.org/10.1594/PANGAEA.950782 en eng PANGAEA Miesner, Frederieke; Boike, Julia; Cable, William L (2022): Physical oceanography (CTD) measurements in Brandallaguna in March 2021 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.951082 Miesner, Frederieke; Cable, William L; Boike, Julia: Description of dataset “Temperature measurements at Brandallaguna in March 2021”. https://download.pangaea.de/reference/116832/attachments/README_TemperatureLance_Bayelva2021.pdf https://doi.pangaea.de/10.1594/PANGAEA.950782 https://doi.org/10.1594/PANGAEA.950782 CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess active layer AWI_PerDyn AWI_Perma AWIPEV Bayelva_2021 MOSES DATE/TIME ELEVATION Event label LATITUDE LONGITUDE Modular Observation Solutions for Earth Systems NO-Land_2021_Bayelva No-Land_2021_Bayelva_TLance_01 No-Land_2021_Bayelva_TLance_02 No-Land_2021_Bayelva_TLance_03 No-Land_2021_Bayelva_TLance_04 No-Land_2021_Bayelva_TLance_05 No-Land_2021_Bayelva_TLance_06 No-Land_2021_Bayelva_TLance_07 No-Land_2021_Bayelva_TLance_08 Permafrost Permafrost Research Permafrost Research (Periglacial Dynamics) @ AWI Svalbard talik Temperature soil Temperature Lance TL dataset 2022 ftpangaea https://doi.org/10.1594/PANGAEA.95078210.1594/PANGAEA.951082 2024-09-11T00:15:18Z Bottom water temperatures in lakes and the near-shore Arctic Ocean are usually below 4°C. If the water depth is shallow enough, the sea/lake ice freezes to the sea/lake bed and may significantly shift the mean annual temperature below zero. The temperature regime below the water is therefore directly dependent on the water depth and small changes can have a huge impact. Measurements of the sediment temperature below shallow water bodies, however, are scarce, and single temperature-chains in boreholes are not sufficient to map the spatial variability. As part of the testing phase of the MOSES project, we tested a new temperature lance to measure temperature profiles in lake sediments. The device is a 1.5m steel lance with 30 sensors at 5cm spacing that can be pushed or hammered into the sediment. The sensors equilibrate to the surrounding sediment or water within 10min, allowing for repeat measurements to cover the spatial variability. During the spring expedition to the Bayelva long-term observatory near Ny Ålesund, Svalbard, in March 2021, we measured the sediment temperature under the Brandallaguna and in the glacial lake Tvillingvatnet near the village of Ny Ålesund. The measurement at Tvilingvatnet was 16h long to allow for analysis regarding equilibration time. Dataset Arctic Arctic Ocean Ice Ny Ålesund Ny-Ålesund permafrost Svalbard Talik PANGAEA - Data Publisher for Earth & Environmental Science Arctic Arctic Ocean Bayelva ENVELOPE(11.898,11.898,78.933,78.933) Glacial Lake ENVELOPE(-129.463,-129.463,58.259,58.259) Moses ENVELOPE(-99.183,-99.183,-74.550,-74.550) Ny-Ålesund Svalbard Talik ENVELOPE(146.601,146.601,59.667,59.667) ENVELOPE(11.850308,11.875611,78.945450,78.916016) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
active layer AWI_PerDyn AWI_Perma AWIPEV Bayelva_2021 MOSES DATE/TIME ELEVATION Event label LATITUDE LONGITUDE Modular Observation Solutions for Earth Systems NO-Land_2021_Bayelva No-Land_2021_Bayelva_TLance_01 No-Land_2021_Bayelva_TLance_02 No-Land_2021_Bayelva_TLance_03 No-Land_2021_Bayelva_TLance_04 No-Land_2021_Bayelva_TLance_05 No-Land_2021_Bayelva_TLance_06 No-Land_2021_Bayelva_TLance_07 No-Land_2021_Bayelva_TLance_08 Permafrost Permafrost Research Permafrost Research (Periglacial Dynamics) @ AWI Svalbard talik Temperature soil Temperature Lance TL |
spellingShingle |
active layer AWI_PerDyn AWI_Perma AWIPEV Bayelva_2021 MOSES DATE/TIME ELEVATION Event label LATITUDE LONGITUDE Modular Observation Solutions for Earth Systems NO-Land_2021_Bayelva No-Land_2021_Bayelva_TLance_01 No-Land_2021_Bayelva_TLance_02 No-Land_2021_Bayelva_TLance_03 No-Land_2021_Bayelva_TLance_04 No-Land_2021_Bayelva_TLance_05 No-Land_2021_Bayelva_TLance_06 No-Land_2021_Bayelva_TLance_07 No-Land_2021_Bayelva_TLance_08 Permafrost Permafrost Research Permafrost Research (Periglacial Dynamics) @ AWI Svalbard talik Temperature soil Temperature Lance TL Miesner, Frederieke Cable, William L Boike, Julia Temperature measurements at Brandallaguna in March 2021 |
topic_facet |
active layer AWI_PerDyn AWI_Perma AWIPEV Bayelva_2021 MOSES DATE/TIME ELEVATION Event label LATITUDE LONGITUDE Modular Observation Solutions for Earth Systems NO-Land_2021_Bayelva No-Land_2021_Bayelva_TLance_01 No-Land_2021_Bayelva_TLance_02 No-Land_2021_Bayelva_TLance_03 No-Land_2021_Bayelva_TLance_04 No-Land_2021_Bayelva_TLance_05 No-Land_2021_Bayelva_TLance_06 No-Land_2021_Bayelva_TLance_07 No-Land_2021_Bayelva_TLance_08 Permafrost Permafrost Research Permafrost Research (Periglacial Dynamics) @ AWI Svalbard talik Temperature soil Temperature Lance TL |
description |
Bottom water temperatures in lakes and the near-shore Arctic Ocean are usually below 4°C. If the water depth is shallow enough, the sea/lake ice freezes to the sea/lake bed and may significantly shift the mean annual temperature below zero. The temperature regime below the water is therefore directly dependent on the water depth and small changes can have a huge impact. Measurements of the sediment temperature below shallow water bodies, however, are scarce, and single temperature-chains in boreholes are not sufficient to map the spatial variability. As part of the testing phase of the MOSES project, we tested a new temperature lance to measure temperature profiles in lake sediments. The device is a 1.5m steel lance with 30 sensors at 5cm spacing that can be pushed or hammered into the sediment. The sensors equilibrate to the surrounding sediment or water within 10min, allowing for repeat measurements to cover the spatial variability. During the spring expedition to the Bayelva long-term observatory near Ny Ålesund, Svalbard, in March 2021, we measured the sediment temperature under the Brandallaguna and in the glacial lake Tvillingvatnet near the village of Ny Ålesund. The measurement at Tvilingvatnet was 16h long to allow for analysis regarding equilibration time. |
format |
Dataset |
author |
Miesner, Frederieke Cable, William L Boike, Julia |
author_facet |
Miesner, Frederieke Cable, William L Boike, Julia |
author_sort |
Miesner, Frederieke |
title |
Temperature measurements at Brandallaguna in March 2021 |
title_short |
Temperature measurements at Brandallaguna in March 2021 |
title_full |
Temperature measurements at Brandallaguna in March 2021 |
title_fullStr |
Temperature measurements at Brandallaguna in March 2021 |
title_full_unstemmed |
Temperature measurements at Brandallaguna in March 2021 |
title_sort |
temperature measurements at brandallaguna in march 2021 |
publisher |
PANGAEA |
publishDate |
2022 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.950782 https://doi.org/10.1594/PANGAEA.950782 |
op_coverage |
MEDIAN LATITUDE: 78.921503 * MEDIAN LONGITUDE: 11.872443 * SOUTH-BOUND LATITUDE: 78.916016 * WEST-BOUND LONGITUDE: 11.850308 * NORTH-BOUND LATITUDE: 78.945450 * EAST-BOUND LONGITUDE: 11.875611 * DATE/TIME START: 2021-03-25T08:48:13 * DATE/TIME END: 2021-03-27T07:35:06 * MINIMUM ELEVATION: -8.1 m a.s.l. * MAXIMUM ELEVATION: 21.3 m a.s.l. |
long_lat |
ENVELOPE(11.898,11.898,78.933,78.933) ENVELOPE(-129.463,-129.463,58.259,58.259) ENVELOPE(-99.183,-99.183,-74.550,-74.550) ENVELOPE(146.601,146.601,59.667,59.667) ENVELOPE(11.850308,11.875611,78.945450,78.916016) |
geographic |
Arctic Arctic Ocean Bayelva Glacial Lake Moses Ny-Ålesund Svalbard Talik |
geographic_facet |
Arctic Arctic Ocean Bayelva Glacial Lake Moses Ny-Ålesund Svalbard Talik |
genre |
Arctic Arctic Ocean Ice Ny Ålesund Ny-Ålesund permafrost Svalbard Talik |
genre_facet |
Arctic Arctic Ocean Ice Ny Ålesund Ny-Ålesund permafrost Svalbard Talik |
op_relation |
Miesner, Frederieke; Boike, Julia; Cable, William L (2022): Physical oceanography (CTD) measurements in Brandallaguna in March 2021 [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.951082 Miesner, Frederieke; Cable, William L; Boike, Julia: Description of dataset “Temperature measurements at Brandallaguna in March 2021”. https://download.pangaea.de/reference/116832/attachments/README_TemperatureLance_Bayelva2021.pdf https://doi.pangaea.de/10.1594/PANGAEA.950782 https://doi.org/10.1594/PANGAEA.950782 |
op_rights |
CC-BY-4.0: Creative Commons Attribution 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.1594/PANGAEA.95078210.1594/PANGAEA.951082 |
_version_ |
1811636154197344256 |