Satellite-based estimates of Antarctic surface meltwater fluxes
This study generates novel satellite-derived estimates of Antarctic-wide annual (1999–2009) surface meltwater production using an empirical relationship between radar backscatter from the QuikSCAT (QSCAT) satellite and melt calculated from in situ energy balance observations. The resulting QSCAT-der...
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ftunivutrecht:oai:dspace.library.uu.nl:1874/290634 2023-07-23T04:15:48+02:00 Satellite-based estimates of Antarctic surface meltwater fluxes Trusel, L.D. Frey, K.E. Das, S.B. Kuipers Munneke, P. van den Broeke, M.R. Dijkstra, H.A. Marine and Atmospheric Research Sub Dynamics Meteorology Sub Physical Oceanography 2013 image/pdf https://dspace.library.uu.nl/handle/1874/290634 en eng 0094-8276 https://dspace.library.uu.nl/handle/1874/290634 info:eu-repo/semantics/OpenAccess Article 2013 ftunivutrecht 2023-07-02T00:51:56Z This study generates novel satellite-derived estimates of Antarctic-wide annual (1999–2009) surface meltwater production using an empirical relationship between radar backscatter from the QuikSCAT (QSCAT) satellite and melt calculated from in situ energy balance observations. The resulting QSCAT-derived melt fluxes significantly agree with output from the regional climate model RACMO2.1 and with independent ground-based observations. The highresolution (4.45 km) QSCAT-based melt fluxes uniquely detect interannually persistent and intense melt (>400mm water equivalent (w.e.) year 1) on interior Larsen C Ice Shelf that is not simulated by RACMO2.1. This supports a growing understanding of the importance of a föhn effect in this region and quantifies the resulting locally enhanced melting that is spatially consistent with recently observed Larsen C thinning. These new results highlight important cryosphere-climate interactions and processes that are presently not fully captured by the coarser-resolution (27 km) regional climate model. Citation: Trusel, L. D., K. E. Frey, S. B. Das, P. Kuipers Munneke, and M. R. van den Broeke (2013), Satellite-based estimates of Antarctic surface meltwater fluxes, Geophys. Res. Lett., 40, 6148–6153, doi:10.1002/2013GL058138. Article in Journal/Newspaper Antarc* Antarctic Ice Shelf Utrecht University Repository Antarctic Kuipers ENVELOPE(161.400,161.400,-77.900,-77.900) |
institution |
Open Polar |
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Utrecht University Repository |
op_collection_id |
ftunivutrecht |
language |
English |
description |
This study generates novel satellite-derived estimates of Antarctic-wide annual (1999–2009) surface meltwater production using an empirical relationship between radar backscatter from the QuikSCAT (QSCAT) satellite and melt calculated from in situ energy balance observations. The resulting QSCAT-derived melt fluxes significantly agree with output from the regional climate model RACMO2.1 and with independent ground-based observations. The highresolution (4.45 km) QSCAT-based melt fluxes uniquely detect interannually persistent and intense melt (>400mm water equivalent (w.e.) year 1) on interior Larsen C Ice Shelf that is not simulated by RACMO2.1. This supports a growing understanding of the importance of a föhn effect in this region and quantifies the resulting locally enhanced melting that is spatially consistent with recently observed Larsen C thinning. These new results highlight important cryosphere-climate interactions and processes that are presently not fully captured by the coarser-resolution (27 km) regional climate model. Citation: Trusel, L. D., K. E. Frey, S. B. Das, P. Kuipers Munneke, and M. R. van den Broeke (2013), Satellite-based estimates of Antarctic surface meltwater fluxes, Geophys. Res. Lett., 40, 6148–6153, doi:10.1002/2013GL058138. |
author2 |
Marine and Atmospheric Research Sub Dynamics Meteorology Sub Physical Oceanography |
format |
Article in Journal/Newspaper |
author |
Trusel, L.D. Frey, K.E. Das, S.B. Kuipers Munneke, P. van den Broeke, M.R. Dijkstra, H.A. |
spellingShingle |
Trusel, L.D. Frey, K.E. Das, S.B. Kuipers Munneke, P. van den Broeke, M.R. Dijkstra, H.A. Satellite-based estimates of Antarctic surface meltwater fluxes |
author_facet |
Trusel, L.D. Frey, K.E. Das, S.B. Kuipers Munneke, P. van den Broeke, M.R. Dijkstra, H.A. |
author_sort |
Trusel, L.D. |
title |
Satellite-based estimates of Antarctic surface meltwater fluxes |
title_short |
Satellite-based estimates of Antarctic surface meltwater fluxes |
title_full |
Satellite-based estimates of Antarctic surface meltwater fluxes |
title_fullStr |
Satellite-based estimates of Antarctic surface meltwater fluxes |
title_full_unstemmed |
Satellite-based estimates of Antarctic surface meltwater fluxes |
title_sort |
satellite-based estimates of antarctic surface meltwater fluxes |
publishDate |
2013 |
url |
https://dspace.library.uu.nl/handle/1874/290634 |
long_lat |
ENVELOPE(161.400,161.400,-77.900,-77.900) |
geographic |
Antarctic Kuipers |
geographic_facet |
Antarctic Kuipers |
genre |
Antarc* Antarctic Ice Shelf |
genre_facet |
Antarc* Antarctic Ice Shelf |
op_relation |
0094-8276 https://dspace.library.uu.nl/handle/1874/290634 |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1772176831292637184 |