Subsurface temperature at Lomonosovfonna, Svalbard, April 2012-2016
The dataset contains subsurface temperature measurements done at Lomonosovfonna, Svalbard, during April 2012 - 2016. All measurements are done at the site with coordinates: 78.8235 N, 17.432 E. The data is contained in four cells of a matlab structure containing data from installations deployed in A...
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Format: | Dataset |
Language: | English |
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PANGAEA
2019
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Online Access: | https://doi.pangaea.de/10.1594/PANGAEA.902613 https://doi.org/10.1594/PANGAEA.902613 |
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.902613 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
firn Lomonosovfonna Lomonosovfonna_subT snow Svalbard Norway Temperature Temperature probe TP |
spellingShingle |
firn Lomonosovfonna Lomonosovfonna_subT snow Svalbard Norway Temperature Temperature probe TP Marchenko, Sergey Pohjola, Veijo A Pettersson, Rickard Subsurface temperature at Lomonosovfonna, Svalbard, April 2012-2016 |
topic_facet |
firn Lomonosovfonna Lomonosovfonna_subT snow Svalbard Norway Temperature Temperature probe TP |
description |
The dataset contains subsurface temperature measurements done at Lomonosovfonna, Svalbard, during April 2012 - 2016. All measurements are done at the site with coordinates: 78.8235 N, 17.432 E. The data is contained in four cells of a matlab structure containing data from installations deployed in April 2012 - cell 1, April 2013 - cell 2, April 2014 - cell 3 and April 2015 - cell 4. In 2012-2014 nine thermistor strings were installed in each year. The nine T-strings were arranged in a 3*3 square grid with a 3 m spacing between neighboring strings. In 2015 one t-string was installed. Hardware: Campbell Scientific CR10X data loggers in combination with several relay multiplexers (AM416 of AM16/32B) were used for temperature measurements. For that a reference temperature stable resistor (Rr Ohm) was connected is series with thermistors. Known excitation voltage (Ue) was supplied to the circuit and the voltage was measured (Um) at the leads of the reference resistor. The resistance of a thermistor (Rt) was then calculated as: Rt = Ue * Rr / Um - Rr. The resistance was then converted to temperature values provided by the manufacturer of thermistors. Technical information is contained in the variables: LF{N}.T.system. The raw temperature measurements along with the time stamps and depths are contained in the variables LF{N}.T.system.T_raw, LF{N}.T.system.t_raw and LF{N}.T.system.z_raw. After unpacking the data was subjected to the following post-processing steps: - delete data from sensors that were left above the snow surface - for the sensors installed in April 2013: delete data after 2013 July 12 - reset temperature values outsides of the range [-40 +10] degC to NaN - for the sensors installed in April 2015: correct values from one of the sensors by linear interpolation in time between the following time points: 2015 November 15 02:00 and 2015 November 15 14:00, 2015 December 18 15:00 and 2015 December 19 21:00 - introduce corrections to depths of sensors to match temperature distributions measured at different ... |
format |
Dataset |
author |
Marchenko, Sergey Pohjola, Veijo A Pettersson, Rickard |
author_facet |
Marchenko, Sergey Pohjola, Veijo A Pettersson, Rickard |
author_sort |
Marchenko, Sergey |
title |
Subsurface temperature at Lomonosovfonna, Svalbard, April 2012-2016 |
title_short |
Subsurface temperature at Lomonosovfonna, Svalbard, April 2012-2016 |
title_full |
Subsurface temperature at Lomonosovfonna, Svalbard, April 2012-2016 |
title_fullStr |
Subsurface temperature at Lomonosovfonna, Svalbard, April 2012-2016 |
title_full_unstemmed |
Subsurface temperature at Lomonosovfonna, Svalbard, April 2012-2016 |
title_sort |
subsurface temperature at lomonosovfonna, svalbard, april 2012-2016 |
publisher |
PANGAEA |
publishDate |
2019 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.902613 https://doi.org/10.1594/PANGAEA.902613 |
op_coverage |
LATITUDE: 78.823500 * LONGITUDE: 17.432000 |
long_lat |
ENVELOPE(17.663,17.663,78.774,78.774) ENVELOPE(17.432000,17.432000,78.823500,78.823500) |
geographic |
Svalbard Norway Lomonosovfonna |
geographic_facet |
Svalbard Norway Lomonosovfonna |
genre |
Journal of Glaciology Svalbard The Cryosphere |
genre_facet |
Journal of Glaciology Svalbard The Cryosphere |
op_relation |
Marchenko, Sergey; Cheng, Gong; Lötstedt, Per; Pohjola, Veijo A; Pettersson, Rickard; van Pelt, Ward; Reijmer, Carleen H (2019): Thermal conductivity of firn at Lomonosovfonna, Svalbard, derived from subsurface temperature measurements. The Cryosphere, 13(7), 1843-1859, https://doi.org/10.5194/tc-13-1843-2019 Marchenko, Sergey; Pohjola, Veijo A; Pettersson, Rickard; van Pelt, Ward; Vega, Carmen Paulina; Machguth, Horst; Bøggild, Carl E; Isaksson, Elisabeth (2017): A plot-scale study of firn stratigraphy at Lomonosovfonna, Svalbard, using ice cores, borehole video and GPR surveys in 2012–14. Journal of Glaciology, 63(237), 67-78, https://doi.org/10.1017/jog.2016.118 Marchenko, Sergey; van Pelt, Ward; Claremar, Björn; Pohjola, Veijo A; Pettersson, Rickard; Machguth, Horst; Reijmer, Carleen H (2017): Parameterizing Deep Water Percolation Improves Subsurface Temperature Simulations by a Multilayer Firn Model. Frontiers in Earth Science, 5, https://doi.org/10.3389/feart.2017.00016 https://doi.pangaea.de/10.1594/PANGAEA.902613 https://doi.org/10.1594/PANGAEA.902613 |
op_rights |
CC-BY-ND-4.0: Creative Commons Attribution-NoDerivs 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY-ND |
op_doi |
https://doi.org/10.1594/PANGAEA.902613 https://doi.org/10.5194/tc-13-1843-2019 https://doi.org/10.1017/jog.2016.118 https://doi.org/10.3389/feart.2017.00016 |
_version_ |
1766049228547686400 |
spelling |
ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.902613 2023-05-15T16:57:39+02:00 Subsurface temperature at Lomonosovfonna, Svalbard, April 2012-2016 Marchenko, Sergey Pohjola, Veijo A Pettersson, Rickard LATITUDE: 78.823500 * LONGITUDE: 17.432000 2019-06-13 application/zip, 42.1 MBytes https://doi.pangaea.de/10.1594/PANGAEA.902613 https://doi.org/10.1594/PANGAEA.902613 en eng PANGAEA Marchenko, Sergey; Cheng, Gong; Lötstedt, Per; Pohjola, Veijo A; Pettersson, Rickard; van Pelt, Ward; Reijmer, Carleen H (2019): Thermal conductivity of firn at Lomonosovfonna, Svalbard, derived from subsurface temperature measurements. The Cryosphere, 13(7), 1843-1859, https://doi.org/10.5194/tc-13-1843-2019 Marchenko, Sergey; Pohjola, Veijo A; Pettersson, Rickard; van Pelt, Ward; Vega, Carmen Paulina; Machguth, Horst; Bøggild, Carl E; Isaksson, Elisabeth (2017): A plot-scale study of firn stratigraphy at Lomonosovfonna, Svalbard, using ice cores, borehole video and GPR surveys in 2012–14. Journal of Glaciology, 63(237), 67-78, https://doi.org/10.1017/jog.2016.118 Marchenko, Sergey; van Pelt, Ward; Claremar, Björn; Pohjola, Veijo A; Pettersson, Rickard; Machguth, Horst; Reijmer, Carleen H (2017): Parameterizing Deep Water Percolation Improves Subsurface Temperature Simulations by a Multilayer Firn Model. Frontiers in Earth Science, 5, https://doi.org/10.3389/feart.2017.00016 https://doi.pangaea.de/10.1594/PANGAEA.902613 https://doi.org/10.1594/PANGAEA.902613 CC-BY-ND-4.0: Creative Commons Attribution-NoDerivs 4.0 International Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY-ND firn Lomonosovfonna Lomonosovfonna_subT snow Svalbard Norway Temperature Temperature probe TP Dataset 2019 ftpangaea https://doi.org/10.1594/PANGAEA.902613 https://doi.org/10.5194/tc-13-1843-2019 https://doi.org/10.1017/jog.2016.118 https://doi.org/10.3389/feart.2017.00016 2023-01-20T09:12:28Z The dataset contains subsurface temperature measurements done at Lomonosovfonna, Svalbard, during April 2012 - 2016. All measurements are done at the site with coordinates: 78.8235 N, 17.432 E. The data is contained in four cells of a matlab structure containing data from installations deployed in April 2012 - cell 1, April 2013 - cell 2, April 2014 - cell 3 and April 2015 - cell 4. In 2012-2014 nine thermistor strings were installed in each year. The nine T-strings were arranged in a 3*3 square grid with a 3 m spacing between neighboring strings. In 2015 one t-string was installed. Hardware: Campbell Scientific CR10X data loggers in combination with several relay multiplexers (AM416 of AM16/32B) were used for temperature measurements. For that a reference temperature stable resistor (Rr Ohm) was connected is series with thermistors. Known excitation voltage (Ue) was supplied to the circuit and the voltage was measured (Um) at the leads of the reference resistor. The resistance of a thermistor (Rt) was then calculated as: Rt = Ue * Rr / Um - Rr. The resistance was then converted to temperature values provided by the manufacturer of thermistors. Technical information is contained in the variables: LF{N}.T.system. The raw temperature measurements along with the time stamps and depths are contained in the variables LF{N}.T.system.T_raw, LF{N}.T.system.t_raw and LF{N}.T.system.z_raw. After unpacking the data was subjected to the following post-processing steps: - delete data from sensors that were left above the snow surface - for the sensors installed in April 2013: delete data after 2013 July 12 - reset temperature values outsides of the range [-40 +10] degC to NaN - for the sensors installed in April 2015: correct values from one of the sensors by linear interpolation in time between the following time points: 2015 November 15 02:00 and 2015 November 15 14:00, 2015 December 18 15:00 and 2015 December 19 21:00 - introduce corrections to depths of sensors to match temperature distributions measured at different ... Dataset Journal of Glaciology Svalbard The Cryosphere PANGAEA - Data Publisher for Earth & Environmental Science Svalbard Norway Lomonosovfonna ENVELOPE(17.663,17.663,78.774,78.774) ENVELOPE(17.432000,17.432000,78.823500,78.823500) |