Melt climatology estimates for small to giant Antarctic icebergs, links to NetCDF files
We present four melt climatology estimates based on a simulation of Antarctic iceberg drift and melting that includes small, medium-sized, and giant tabular icebergs with a realistic size distribution. For the first time, an iceberg model is initialized with a set of nearly 7000 observed iceberg pos...
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ftpangaea:oai:pangaea.de:doi:10.1594/PANGAEA.865335 2023-05-15T13:58:14+02:00 Melt climatology estimates for small to giant Antarctic icebergs, links to NetCDF files Rackow, Thomas Wesche, Christine Timmermann, Ralph Hellmer, Hartmut H Juricke, Stephan Jung, Thomas LATITUDE: -90.000000 * LONGITUDE: 0.000000 2017-03-24 text/tab-separated-values, 20 data points https://doi.pangaea.de/10.1594/PANGAEA.865335 https://doi.org/10.1594/PANGAEA.865335 en eng PANGAEA https://doi.pangaea.de/10.1594/PANGAEA.865335 https://doi.org/10.1594/PANGAEA.865335 CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess CC-BY Supplement to: Rackow, Thomas; Wesche, Christine; Timmermann, Ralph; Hellmer, Hartmut H; Juricke, Stephan; Jung, Thomas (2017): A simulation of small to giant Antarctic iceberg evolution: Differential impact on climatology estimates. Journal of Geophysical Research: Oceans, 21 pp, https://doi.org/10.1002/2016JC012513 File content File format File name File size pan-Antarctica Uniform resource locator/link to file Dataset 2017 ftpangaea https://doi.org/10.1594/PANGAEA.865335 https://doi.org/10.1002/2016JC012513 2023-01-20T09:07:52Z We present four melt climatology estimates based on a simulation of Antarctic iceberg drift and melting that includes small, medium-sized, and giant tabular icebergs with a realistic size distribution. For the first time, an iceberg model is initialized with a set of nearly 7000 observed iceberg positions and sizes around Antarctica. We simulate drift and lateral melt using iceberg-draft averaged ocean currents, temperature, and salinity. A new basal melting scheme, originally applied in ice shelf melting studies, uses in situ temperature, salinity, and relative velocities at an iceberg's bottom. The climatology estimates based on simulations of small (SMA), 'small-to-medium'-sized (MED12 & MED123), and small-to-giant icebergs (ALL) exhibit differential characteristics: successive inclusion of larger icebergs leads to a reduced seasonality of the iceberg meltwater flux and a shift of the mass input to the area north of 58°S, while less meltwater is released into the coastal areas. This highlights the necessity to account for larger and giant icebergs in order to obtain accurate melt climatologies. The four monthly melt climatologies [mm/day] are available as netCDF files with 1°x1° spatial resolution and can be used, e.g., for sensitivity studies with uncoupled sea ice-ocean models, or as spatio-temporal templates for the redistribution of land ice from the Antarctic ice sheet over the Southern Ocean in climate models. Dataset Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Iceberg* Sea ice Southern Ocean PANGAEA - Data Publisher for Earth & Environmental Science Antarctic Southern Ocean The Antarctic ENVELOPE(0.000000,0.000000,-90.000000,-90.000000) |
institution |
Open Polar |
collection |
PANGAEA - Data Publisher for Earth & Environmental Science |
op_collection_id |
ftpangaea |
language |
English |
topic |
File content File format File name File size pan-Antarctica Uniform resource locator/link to file |
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File content File format File name File size pan-Antarctica Uniform resource locator/link to file Rackow, Thomas Wesche, Christine Timmermann, Ralph Hellmer, Hartmut H Juricke, Stephan Jung, Thomas Melt climatology estimates for small to giant Antarctic icebergs, links to NetCDF files |
topic_facet |
File content File format File name File size pan-Antarctica Uniform resource locator/link to file |
description |
We present four melt climatology estimates based on a simulation of Antarctic iceberg drift and melting that includes small, medium-sized, and giant tabular icebergs with a realistic size distribution. For the first time, an iceberg model is initialized with a set of nearly 7000 observed iceberg positions and sizes around Antarctica. We simulate drift and lateral melt using iceberg-draft averaged ocean currents, temperature, and salinity. A new basal melting scheme, originally applied in ice shelf melting studies, uses in situ temperature, salinity, and relative velocities at an iceberg's bottom. The climatology estimates based on simulations of small (SMA), 'small-to-medium'-sized (MED12 & MED123), and small-to-giant icebergs (ALL) exhibit differential characteristics: successive inclusion of larger icebergs leads to a reduced seasonality of the iceberg meltwater flux and a shift of the mass input to the area north of 58°S, while less meltwater is released into the coastal areas. This highlights the necessity to account for larger and giant icebergs in order to obtain accurate melt climatologies. The four monthly melt climatologies [mm/day] are available as netCDF files with 1°x1° spatial resolution and can be used, e.g., for sensitivity studies with uncoupled sea ice-ocean models, or as spatio-temporal templates for the redistribution of land ice from the Antarctic ice sheet over the Southern Ocean in climate models. |
format |
Dataset |
author |
Rackow, Thomas Wesche, Christine Timmermann, Ralph Hellmer, Hartmut H Juricke, Stephan Jung, Thomas |
author_facet |
Rackow, Thomas Wesche, Christine Timmermann, Ralph Hellmer, Hartmut H Juricke, Stephan Jung, Thomas |
author_sort |
Rackow, Thomas |
title |
Melt climatology estimates for small to giant Antarctic icebergs, links to NetCDF files |
title_short |
Melt climatology estimates for small to giant Antarctic icebergs, links to NetCDF files |
title_full |
Melt climatology estimates for small to giant Antarctic icebergs, links to NetCDF files |
title_fullStr |
Melt climatology estimates for small to giant Antarctic icebergs, links to NetCDF files |
title_full_unstemmed |
Melt climatology estimates for small to giant Antarctic icebergs, links to NetCDF files |
title_sort |
melt climatology estimates for small to giant antarctic icebergs, links to netcdf files |
publisher |
PANGAEA |
publishDate |
2017 |
url |
https://doi.pangaea.de/10.1594/PANGAEA.865335 https://doi.org/10.1594/PANGAEA.865335 |
op_coverage |
LATITUDE: -90.000000 * LONGITUDE: 0.000000 |
long_lat |
ENVELOPE(0.000000,0.000000,-90.000000,-90.000000) |
geographic |
Antarctic Southern Ocean The Antarctic |
geographic_facet |
Antarctic Southern Ocean The Antarctic |
genre |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Iceberg* Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica Ice Sheet Ice Shelf Iceberg* Sea ice Southern Ocean |
op_source |
Supplement to: Rackow, Thomas; Wesche, Christine; Timmermann, Ralph; Hellmer, Hartmut H; Juricke, Stephan; Jung, Thomas (2017): A simulation of small to giant Antarctic iceberg evolution: Differential impact on climatology estimates. Journal of Geophysical Research: Oceans, 21 pp, https://doi.org/10.1002/2016JC012513 |
op_relation |
https://doi.pangaea.de/10.1594/PANGAEA.865335 https://doi.org/10.1594/PANGAEA.865335 |
op_rights |
CC-BY-3.0: Creative Commons Attribution 3.0 Unported Access constraints: unrestricted info:eu-repo/semantics/openAccess |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1594/PANGAEA.865335 https://doi.org/10.1002/2016JC012513 |
_version_ |
1766266424614977536 |