Sea level changes from monthly solutions of ice sheet mass balance

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Abstract

We present mass change time series at basin scale for both Greenland and Antarctica, de-rived from GRACE data, and use these data to find the associated global sea level changes. We use two independent methods for GRACE ice mass loss estimation, including use of different GIA models and estimation of appropriate error bars. The first method applied is based on a mass in-version, while the second one uses integration over a representation given in water equivalent. We find good agreement between the resulting mass changes based on the two independent methods, especially in the behavior of time series. We also compare our GRACE derived regional estimates with independent mass change results based on altimetry data from NASA’s Ice Cloud and land Elevation Satellite.
From the estimated Greenland and Antarctica mass changes we compute the gravitationally self-consistent sea-level changes and its associated uncertainties, and show results of the impact of Earth model uncertainties in the global sea level change and its regional “fingerprints”.
Original languageEnglish
Publication date2012
Number of pages1
Publication statusPublished - 2012
EventSLALOM 2012: Sea-Level and Adjustment of the Land Observations and Models - Athens, Greece
Duration: 19 Mar 201222 Mar 2012

Conference

ConferenceSLALOM 2012
CountryGreece
CityAthens
Period19/03/201222/03/2012

Keywords

  • Ice mass balance
  • Globe sea level rise

Cite this

@conference{e7213b92d7ed45da888341161041489d,
title = "Sea level changes from monthly solutions of ice sheet mass balance",
abstract = "We present mass change time series at basin scale for both Greenland and Antarctica, de-rived from GRACE data, and use these data to find the associated global sea level changes. We use two independent methods for GRACE ice mass loss estimation, including use of different GIA models and estimation of appropriate error bars. The first method applied is based on a mass in-version, while the second one uses integration over a representation given in water equivalent. We find good agreement between the resulting mass changes based on the two independent methods, especially in the behavior of time series. We also compare our GRACE derived regional estimates with independent mass change results based on altimetry data from NASA’s Ice Cloud and land Elevation Satellite.From the estimated Greenland and Antarctica mass changes we compute the gravitationally self-consistent sea-level changes and its associated uncertainties, and show results of the impact of Earth model uncertainties in the global sea level change and its regional “fingerprints”.",
keywords = "Ice mass balance, Globe sea level rise",
author = "Barletta, {Valentina Roberta} and S{\o}rensen, {Louise Sandberg} and Ren{\'e} Forsberg",
year = "2012",
language = "English",
note = "SLALOM 2012 : Sea-Level and Adjustment of the Land Observations and Models ; Conference date: 19-03-2012 Through 22-03-2012",

}

Sea level changes from monthly solutions of ice sheet mass balance. / Barletta, Valentina Roberta; Sørensen, Louise Sandberg; Forsberg, René.

2012. Abstract from SLALOM 2012, Athens, Greece.

Research output: Contribution to conferenceConference abstract for conferenceResearchpeer-review

TY - ABST

T1 - Sea level changes from monthly solutions of ice sheet mass balance

AU - Barletta, Valentina Roberta

AU - Sørensen, Louise Sandberg

AU - Forsberg, René

PY - 2012

Y1 - 2012

N2 - We present mass change time series at basin scale for both Greenland and Antarctica, de-rived from GRACE data, and use these data to find the associated global sea level changes. We use two independent methods for GRACE ice mass loss estimation, including use of different GIA models and estimation of appropriate error bars. The first method applied is based on a mass in-version, while the second one uses integration over a representation given in water equivalent. We find good agreement between the resulting mass changes based on the two independent methods, especially in the behavior of time series. We also compare our GRACE derived regional estimates with independent mass change results based on altimetry data from NASA’s Ice Cloud and land Elevation Satellite.From the estimated Greenland and Antarctica mass changes we compute the gravitationally self-consistent sea-level changes and its associated uncertainties, and show results of the impact of Earth model uncertainties in the global sea level change and its regional “fingerprints”.

AB - We present mass change time series at basin scale for both Greenland and Antarctica, de-rived from GRACE data, and use these data to find the associated global sea level changes. We use two independent methods for GRACE ice mass loss estimation, including use of different GIA models and estimation of appropriate error bars. The first method applied is based on a mass in-version, while the second one uses integration over a representation given in water equivalent. We find good agreement between the resulting mass changes based on the two independent methods, especially in the behavior of time series. We also compare our GRACE derived regional estimates with independent mass change results based on altimetry data from NASA’s Ice Cloud and land Elevation Satellite.From the estimated Greenland and Antarctica mass changes we compute the gravitationally self-consistent sea-level changes and its associated uncertainties, and show results of the impact of Earth model uncertainties in the global sea level change and its regional “fingerprints”.

KW - Ice mass balance

KW - Globe sea level rise

M3 - Conference abstract for conference

ER -