Density and stratigraphy of firn at Lomonosovfonna derived from shallow cores in 1997-2015
The present dataset contains measurements of density and observations of stratigraphy in the subsurface snow/firn/ice done at Lomonosovfonna during 1997-2015. The variables are named according to the year, when the data was derived: "LF" for Lomonosovfonna and "NN" corresponds to...
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Language: | English |
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PANGAEA - Data Publisher for Earth & Environmental Science
2019
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Online Access: | https://dx.doi.org/10.1594/pangaea.902221 https://doi.pangaea.de/10.1594/PANGAEA.902221 |
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ftdatacite:10.1594/pangaea.902221 |
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openpolar |
institution |
Open Polar |
collection |
DataCite Metadata Store (German National Library of Science and Technology) |
op_collection_id |
ftdatacite |
language |
English |
topic |
Ice drill |
spellingShingle |
Ice drill Marchenko, Sergey Pohjola, Veijo A Pettersson, Rickard van Pelt, Ward Vega, Carmen Paulina Isaksson, Elisabeth Density and stratigraphy of firn at Lomonosovfonna derived from shallow cores in 1997-2015 |
topic_facet |
Ice drill |
description |
The present dataset contains measurements of density and observations of stratigraphy in the subsurface snow/firn/ice done at Lomonosovfonna during 1997-2015. The variables are named according to the year, when the data was derived: "LF" for Lomonosovfonna and "NN" corresponds to the year, e.g. 97 - 1997, 07 - 2007. Most variables contain the following fields:rho* - density measurements: column 1 - depth of sample top, m; column 2 - depth of sample bottom, m; column 3 - density values, kg m^-3;rho*_reg - density measurements on a regular 1 cm spaced grid, gaps are filled by linear interpolation and extrapolated using "nearest neighbor" logic; column 1 - depth, m; column 2 - density values, kg m^-3;strat - stratigraphy: column 1 - depth of sample top, m; column 2 - depth of sample bottom, m; column 3 - stratigraphy coded as: 1 - snow, 2 - firn, 3 - ice lens;lat* - latitude, degrees to the North of equator;lon* - longitude, degrees to the East of the prime meridian;h* - elevation, m above the sea level.LF97: Six shallow cores were drilled in spring 1997 approximately along the centerline of Nordenskiöldbreen. A system of mass balance stakes at locations of the cores is maintained by Uppsala university. The density is approximated from visual stratigraphic description according to the classification suggested by Pohjola et al., 2002 (see Table 1 there). The density values are the result of averaging of density values ascribed to stratigraphic units identified in core pieces and weighted by their respective thicknesses.LF99: Three shallow cores were drilled in the end of April 1999 at the location where in 1997 a 120 m long ice core was drilled. The cores were drilled along a North-South oriented line with a spacing of 2.5 m between the neighboring cores. The fields in the LF99 variable are named accordingly: fields with the data from the southern location contain "S", northern - "N", central - "C". The field and laboratory work was done by Håkan Samuelsson. Methods and analysis are described in detail in the Master Thesis: "Distribution of melt layers on the ice field Lomonosovfonna, Spitsbergen", defended at Uppsala University in 2001.LF08: One shallow core was drilled by Sanja Forsström, Elisabeth Isaksson, Veijo Pohjola and Jim Hedfors within ca 100 from the location where in 1997 a 120 m long ice core was drilled. Density was measured using two different methods at the cold lab of the Norwegian Polar Institute in Tromso by Sanja Forsström and Tonu Martma. The structure field "rho" contains values calculated from measured geometrical dimensions of the core samples and weights. The fields "rhoDEPcorepieces", "rhoDEPionsamples" and "rhoDEPisotopesamples" contain density values measured using dielectric profiling in three sets of samples.LF12: The core was drilled by Veijo Pohjola and Rickard Pettersson on the 13 of April 2012. Field notes done by Sergey Marchenko. Cold lab operations were done by Sergey Marchenko and Elena Klimenko at the University Centre in Svalbard (UNIS) in Longyearbyen, Norway during 26 April - 3 May 2012. Density was measured in cylindrical and cuboid samples prepared using a band saw to ensure regular shape. The structure field "rho_c" contains density measurements done using cylindrical core pieces. The structure field "rho_rb" contains density measurements done using relatively long cuboid samples prepared from cylindrical core pieces using a band saw. The structure field "rho_rs" contains density measurements done using shorter cuboid samples prepared from the longer pieces using a band saw. The structure field "rho_reg" is based on the "rho_rs" structure field.LF13: The core was drilled by Christian Zdanowics, Dorothee Vallot and Veijo Pohjola in April 2013 and later analyzed by Carmen Vega in the cold lab of the Norwegian Polar Institute in Tromso, Norway.LF14: The core was drilled by Veijo Pohjola and Ward van Pelt in the end of March 2014. Field notes are done by Veijo Pohjola. Cold lab operations were done by Sergey Marchenko, William Kohler and Elisbeth Isaksson in the Norwegian Polar Institute facilities in Tromso, Norway, during 05-10 of October 2014. Density was measured in cylindrical or cuboid samples prepared using a band saw to ensure regular shape.LF15: the core was drilled by Veijo Pohjola and Ward van Pelt on the 15th of April 2015. Field notes are done by Veijo Pohjola. Cold lab operations were done by Sergey Marchenko, Glennda Villanflor and Elisbeth Isaksson in the Norwegian Polar Institute facilities in Tromso, Norway, during 02-05 of November 2015. Density was measured in cylindrical or cuboid samples prepared using a band saw to ensure regular shape. |
format |
Dataset |
author |
Marchenko, Sergey Pohjola, Veijo A Pettersson, Rickard van Pelt, Ward Vega, Carmen Paulina Isaksson, Elisabeth |
author_facet |
Marchenko, Sergey Pohjola, Veijo A Pettersson, Rickard van Pelt, Ward Vega, Carmen Paulina Isaksson, Elisabeth |
author_sort |
Marchenko, Sergey |
title |
Density and stratigraphy of firn at Lomonosovfonna derived from shallow cores in 1997-2015 |
title_short |
Density and stratigraphy of firn at Lomonosovfonna derived from shallow cores in 1997-2015 |
title_full |
Density and stratigraphy of firn at Lomonosovfonna derived from shallow cores in 1997-2015 |
title_fullStr |
Density and stratigraphy of firn at Lomonosovfonna derived from shallow cores in 1997-2015 |
title_full_unstemmed |
Density and stratigraphy of firn at Lomonosovfonna derived from shallow cores in 1997-2015 |
title_sort |
density and stratigraphy of firn at lomonosovfonna derived from shallow cores in 1997-2015 |
publisher |
PANGAEA - Data Publisher for Earth & Environmental Science |
publishDate |
2019 |
url |
https://dx.doi.org/10.1594/pangaea.902221 https://doi.pangaea.de/10.1594/PANGAEA.902221 |
long_lat |
ENVELOPE(16.546,16.546,68.801,68.801) ENVELOPE(-63.000,-63.000,-64.300,-64.300) ENVELOPE(17.663,17.663,78.774,78.774) ENVELOPE(17.166,17.166,78.676,78.676) ENVELOPE(35.717,35.717,-71.250,-71.250) ENVELOPE(-67.433,-67.433,-67.333,-67.333) |
geographic |
Svalbard Longyearbyen Norway Tromso Rho Lomonosovfonna Nordenskiöldbreen Van Pelt Vallot |
geographic_facet |
Svalbard Longyearbyen Norway Tromso Rho Lomonosovfonna Nordenskiöldbreen Van Pelt Vallot |
genre |
ice core Longyearbyen Norwegian Polar Institute Svalbard Tromso Tromso UNIS University Centre in Svalbard Spitsbergen |
genre_facet |
ice core Longyearbyen Norwegian Polar Institute Svalbard Tromso Tromso UNIS University Centre in Svalbard Spitsbergen |
op_relation |
https://dx.doi.org/10.3189/172756501781832313 https://dx.doi.org/10.5194/tc-13-1843-2019 https://dx.doi.org/10.1017/jog.2016.118 https://dx.doi.org/10.3389/feart.2017.00016 https://dx.doi.org/10.3189/172756502781831205 https://dx.doi.org/10.1029/2000jd000149 https://dx.doi.org/10.1002/2013jf003040 https://dx.doi.org/10.5194/tc-10-961-2016 |
op_rights |
Creative Commons Attribution No Derivatives 2.0 Generic https://creativecommons.org/licenses/by-nd/2.0/legalcode cc-by-nd-2.0 |
op_rightsnorm |
CC-BY-ND |
op_doi |
https://doi.org/10.1594/pangaea.902221 https://doi.org/10.3189/172756501781832313 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 https://doi.org/10.3189/172756502781831205 |
_version_ |
1766029820752297984 |
spelling |
ftdatacite:10.1594/pangaea.902221 2023-05-15T16:39:28+02:00 Density and stratigraphy of firn at Lomonosovfonna derived from shallow cores in 1997-2015 Marchenko, Sergey Pohjola, Veijo A Pettersson, Rickard van Pelt, Ward Vega, Carmen Paulina Isaksson, Elisabeth 2019 application/zip https://dx.doi.org/10.1594/pangaea.902221 https://doi.pangaea.de/10.1594/PANGAEA.902221 en eng PANGAEA - Data Publisher for Earth & Environmental Science https://dx.doi.org/10.3189/172756501781832313 https://dx.doi.org/10.5194/tc-13-1843-2019 https://dx.doi.org/10.1017/jog.2016.118 https://dx.doi.org/10.3389/feart.2017.00016 https://dx.doi.org/10.3189/172756502781831205 https://dx.doi.org/10.1029/2000jd000149 https://dx.doi.org/10.1002/2013jf003040 https://dx.doi.org/10.5194/tc-10-961-2016 Creative Commons Attribution No Derivatives 2.0 Generic https://creativecommons.org/licenses/by-nd/2.0/legalcode cc-by-nd-2.0 CC-BY-ND Ice drill Dataset dataset 2019 ftdatacite https://doi.org/10.1594/pangaea.902221 https://doi.org/10.3189/172756501781832313 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 https://doi.org/10.3189/172756502781831205 2022-02-09T13:37:35Z The present dataset contains measurements of density and observations of stratigraphy in the subsurface snow/firn/ice done at Lomonosovfonna during 1997-2015. The variables are named according to the year, when the data was derived: "LF" for Lomonosovfonna and "NN" corresponds to the year, e.g. 97 - 1997, 07 - 2007. Most variables contain the following fields:rho* - density measurements: column 1 - depth of sample top, m; column 2 - depth of sample bottom, m; column 3 - density values, kg m^-3;rho*_reg - density measurements on a regular 1 cm spaced grid, gaps are filled by linear interpolation and extrapolated using "nearest neighbor" logic; column 1 - depth, m; column 2 - density values, kg m^-3;strat - stratigraphy: column 1 - depth of sample top, m; column 2 - depth of sample bottom, m; column 3 - stratigraphy coded as: 1 - snow, 2 - firn, 3 - ice lens;lat* - latitude, degrees to the North of equator;lon* - longitude, degrees to the East of the prime meridian;h* - elevation, m above the sea level.LF97: Six shallow cores were drilled in spring 1997 approximately along the centerline of Nordenskiöldbreen. A system of mass balance stakes at locations of the cores is maintained by Uppsala university. The density is approximated from visual stratigraphic description according to the classification suggested by Pohjola et al., 2002 (see Table 1 there). The density values are the result of averaging of density values ascribed to stratigraphic units identified in core pieces and weighted by their respective thicknesses.LF99: Three shallow cores were drilled in the end of April 1999 at the location where in 1997 a 120 m long ice core was drilled. The cores were drilled along a North-South oriented line with a spacing of 2.5 m between the neighboring cores. The fields in the LF99 variable are named accordingly: fields with the data from the southern location contain "S", northern - "N", central - "C". The field and laboratory work was done by Håkan Samuelsson. Methods and analysis are described in detail in the Master Thesis: "Distribution of melt layers on the ice field Lomonosovfonna, Spitsbergen", defended at Uppsala University in 2001.LF08: One shallow core was drilled by Sanja Forsström, Elisabeth Isaksson, Veijo Pohjola and Jim Hedfors within ca 100 from the location where in 1997 a 120 m long ice core was drilled. Density was measured using two different methods at the cold lab of the Norwegian Polar Institute in Tromso by Sanja Forsström and Tonu Martma. The structure field "rho" contains values calculated from measured geometrical dimensions of the core samples and weights. The fields "rhoDEPcorepieces", "rhoDEPionsamples" and "rhoDEPisotopesamples" contain density values measured using dielectric profiling in three sets of samples.LF12: The core was drilled by Veijo Pohjola and Rickard Pettersson on the 13 of April 2012. Field notes done by Sergey Marchenko. Cold lab operations were done by Sergey Marchenko and Elena Klimenko at the University Centre in Svalbard (UNIS) in Longyearbyen, Norway during 26 April - 3 May 2012. Density was measured in cylindrical and cuboid samples prepared using a band saw to ensure regular shape. The structure field "rho_c" contains density measurements done using cylindrical core pieces. The structure field "rho_rb" contains density measurements done using relatively long cuboid samples prepared from cylindrical core pieces using a band saw. The structure field "rho_rs" contains density measurements done using shorter cuboid samples prepared from the longer pieces using a band saw. The structure field "rho_reg" is based on the "rho_rs" structure field.LF13: The core was drilled by Christian Zdanowics, Dorothee Vallot and Veijo Pohjola in April 2013 and later analyzed by Carmen Vega in the cold lab of the Norwegian Polar Institute in Tromso, Norway.LF14: The core was drilled by Veijo Pohjola and Ward van Pelt in the end of March 2014. Field notes are done by Veijo Pohjola. Cold lab operations were done by Sergey Marchenko, William Kohler and Elisbeth Isaksson in the Norwegian Polar Institute facilities in Tromso, Norway, during 05-10 of October 2014. Density was measured in cylindrical or cuboid samples prepared using a band saw to ensure regular shape.LF15: the core was drilled by Veijo Pohjola and Ward van Pelt on the 15th of April 2015. Field notes are done by Veijo Pohjola. Cold lab operations were done by Sergey Marchenko, Glennda Villanflor and Elisbeth Isaksson in the Norwegian Polar Institute facilities in Tromso, Norway, during 02-05 of November 2015. Density was measured in cylindrical or cuboid samples prepared using a band saw to ensure regular shape. Dataset ice core Longyearbyen Norwegian Polar Institute Svalbard Tromso Tromso UNIS University Centre in Svalbard Spitsbergen DataCite Metadata Store (German National Library of Science and Technology) Svalbard Longyearbyen Norway Tromso ENVELOPE(16.546,16.546,68.801,68.801) Rho ENVELOPE(-63.000,-63.000,-64.300,-64.300) Lomonosovfonna ENVELOPE(17.663,17.663,78.774,78.774) Nordenskiöldbreen ENVELOPE(17.166,17.166,78.676,78.676) Van Pelt ENVELOPE(35.717,35.717,-71.250,-71.250) Vallot ENVELOPE(-67.433,-67.433,-67.333,-67.333) |