Recent variations in surface mass balance of the Antarctic Peninsula ice sheet
Over the period 1972-98 the height of the snow surface at eight Antarctic sites in Palmer Land and on Alexander Island has been measured with respect to fixed points on local nunataks. From these data an empirical relation between height changes over a given period and three key variables has been d...
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ftnerc:oai:nora.nerc.ac.uk:12306 2023-05-15T13:15:19+02:00 Recent variations in surface mass balance of the Antarctic Peninsula ice sheet Morris, Elizabeth M. Mulvaney, Robert 2004 http://nora.nerc.ac.uk/id/eprint/12306/ unknown International Glaciological Society Morris, Elizabeth M.; Mulvaney, Robert orcid:0000-0002-5372-8148 . 2004 Recent variations in surface mass balance of the Antarctic Peninsula ice sheet. Journal of Glaciology, 50 (169). 257-267. https://doi.org/10.3189/172756504781830051 <https://doi.org/10.3189/172756504781830051> Meteorology and Climatology Glaciology Publication - Article PeerReviewed 2004 ftnerc https://doi.org/10.3189/172756504781830051 2023-02-04T19:27:55Z Over the period 1972-98 the height of the snow surface at eight Antarctic sites in Palmer Land and on Alexander Island has been measured with respect to fixed points on local nunataks. From these data an empirical relation between height changes over a given period and three key variables has been derived. These variables are (i) the local mean annual surface air temperature, (ii) a regional estimate of energy available for melt over the period (derived from the nearby Rothera air-temperature record) and (iii) a regional estimate of accumulation over the period (derived from the nearby Gomez Nunatak ice-core accumulation record). Using this relation, the contribution of the Antarctic Peninsula to sea-level rise for warming from climatic conditions (averaged over the last 30 years) is estimated to be -0.006 +/- 0.002 mm a(-1) K-1. If recent warm conditions persist, however, and meltwater can run off to the sea, the contribution to sea-level rise from ablation is calculated to be 0.07 +/- 0.02 mm a(-1) K-1. Article in Journal/Newspaper Alexander Island Antarc* Antarctic Antarctic Peninsula ice core Ice Sheet Journal of Glaciology Palmer Land Natural Environment Research Council: NERC Open Research Archive Antarctic The Antarctic Antarctic Peninsula Rothera ENVELOPE(-68.130,-68.130,-67.568,-67.568) Alexander Island ENVELOPE(-69.895,-69.895,-71.287,-71.287) Gomez ENVELOPE(-58.795,-58.795,-62.196,-62.196) Palmer Land ENVELOPE(-65.000,-65.000,-71.500,-71.500) Gomez Nunatak ENVELOPE(-68.632,-68.632,-73.934,-73.934) Journal of Glaciology 50 169 257 267 |
institution |
Open Polar |
collection |
Natural Environment Research Council: NERC Open Research Archive |
op_collection_id |
ftnerc |
language |
unknown |
topic |
Meteorology and Climatology Glaciology |
spellingShingle |
Meteorology and Climatology Glaciology Morris, Elizabeth M. Mulvaney, Robert Recent variations in surface mass balance of the Antarctic Peninsula ice sheet |
topic_facet |
Meteorology and Climatology Glaciology |
description |
Over the period 1972-98 the height of the snow surface at eight Antarctic sites in Palmer Land and on Alexander Island has been measured with respect to fixed points on local nunataks. From these data an empirical relation between height changes over a given period and three key variables has been derived. These variables are (i) the local mean annual surface air temperature, (ii) a regional estimate of energy available for melt over the period (derived from the nearby Rothera air-temperature record) and (iii) a regional estimate of accumulation over the period (derived from the nearby Gomez Nunatak ice-core accumulation record). Using this relation, the contribution of the Antarctic Peninsula to sea-level rise for warming from climatic conditions (averaged over the last 30 years) is estimated to be -0.006 +/- 0.002 mm a(-1) K-1. If recent warm conditions persist, however, and meltwater can run off to the sea, the contribution to sea-level rise from ablation is calculated to be 0.07 +/- 0.02 mm a(-1) K-1. |
format |
Article in Journal/Newspaper |
author |
Morris, Elizabeth M. Mulvaney, Robert |
author_facet |
Morris, Elizabeth M. Mulvaney, Robert |
author_sort |
Morris, Elizabeth M. |
title |
Recent variations in surface mass balance of the Antarctic Peninsula ice sheet |
title_short |
Recent variations in surface mass balance of the Antarctic Peninsula ice sheet |
title_full |
Recent variations in surface mass balance of the Antarctic Peninsula ice sheet |
title_fullStr |
Recent variations in surface mass balance of the Antarctic Peninsula ice sheet |
title_full_unstemmed |
Recent variations in surface mass balance of the Antarctic Peninsula ice sheet |
title_sort |
recent variations in surface mass balance of the antarctic peninsula ice sheet |
publisher |
International Glaciological Society |
publishDate |
2004 |
url |
http://nora.nerc.ac.uk/id/eprint/12306/ |
long_lat |
ENVELOPE(-68.130,-68.130,-67.568,-67.568) ENVELOPE(-69.895,-69.895,-71.287,-71.287) ENVELOPE(-58.795,-58.795,-62.196,-62.196) ENVELOPE(-65.000,-65.000,-71.500,-71.500) ENVELOPE(-68.632,-68.632,-73.934,-73.934) |
geographic |
Antarctic The Antarctic Antarctic Peninsula Rothera Alexander Island Gomez Palmer Land Gomez Nunatak |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula Rothera Alexander Island Gomez Palmer Land Gomez Nunatak |
genre |
Alexander Island Antarc* Antarctic Antarctic Peninsula ice core Ice Sheet Journal of Glaciology Palmer Land |
genre_facet |
Alexander Island Antarc* Antarctic Antarctic Peninsula ice core Ice Sheet Journal of Glaciology Palmer Land |
op_relation |
Morris, Elizabeth M.; Mulvaney, Robert orcid:0000-0002-5372-8148 . 2004 Recent variations in surface mass balance of the Antarctic Peninsula ice sheet. Journal of Glaciology, 50 (169). 257-267. https://doi.org/10.3189/172756504781830051 <https://doi.org/10.3189/172756504781830051> |
op_doi |
https://doi.org/10.3189/172756504781830051 |
container_title |
Journal of Glaciology |
container_volume |
50 |
container_issue |
169 |
container_start_page |
257 |
op_container_end_page |
267 |
_version_ |
1766267991863853056 |