Year by year closure adjustment of global mean sea level budget, inclusive of lumped snow, water vapor, and permafrost mass components

Global mean sea level budget is rigorously adjusted during the period 2005–2015 with an emphasis on closing the budget on a year by year basis as opposed to using linear trends of global mean sea level components. The adjustment also accounts for the effect of snow, water vapor, and permafrost mass...

Full description

Bibliographic Details
Main Authors: Iz H. Bâki, Shum C. K.
Format: Article
Language:English
Published: De Gruyter 2020-12-01
Series:Journal of Geodetic Science
Subjects:
Online Access:https://doi.org/10.1515/jogs-2020-0109
_version_ 1798024839148077056
author Iz H. Bâki
Shum C. K.
author_facet Iz H. Bâki
Shum C. K.
author_sort Iz H. Bâki
collection DOAJ
description Global mean sea level budget is rigorously adjusted during the period 2005–2015 with an emphasis on closing the budget on a year by year basis as opposed to using linear trends of global mean sea level components. The adjustment also accounts for the effect of snow, water vapor, and permafrost mass components as a lump sum. The approach provides better resolution for evaluating individual contribution of each budget component year by year in tandem with the other components. Year by year budget misclosures and the confidence intervals of the year by year adjusted budget components are suggestive of an increasing non-linearity in satellite altimetry derived global mean sea level measurements starting in 2012, which are not present in the other components. The solution also generates time series iteratively for the lumped snow, water vapor, and permafrost mass components as well as an estimate for its linear trend, 0.06±0.59 mm/yr. Nonetheless, its standard error is markedly large because of the un-modeled variability in satellite altimetry observed yearly averaged global mean sea level anomalies.
first_indexed 2024-04-11T18:10:17Z
format Article
id doaj.art-e67ed4f9c0cc4810885962d5dc4c7f5c
institution Directory Open Access Journal
issn 2081-9943
language English
last_indexed 2024-04-11T18:10:17Z
publishDate 2020-12-01
publisher De Gruyter
record_format Article
series Journal of Geodetic Science
spelling doaj.art-e67ed4f9c0cc4810885962d5dc4c7f5c2022-12-22T04:10:11ZengDe GruyterJournal of Geodetic Science2081-99432020-12-01101839010.1515/jogs-2020-0109jogs-2020-0109Year by year closure adjustment of global mean sea level budget, inclusive of lumped snow, water vapor, and permafrost mass componentsIz H. Bâki0Shum C. K.1Visiting scholar Division of Geodetic Science School of Earth Sciences The Ohio State University Columbus, Ohio, USADivision of Geodetic Science School of Earth SciencesThe Ohio State University Columbus, Ohio, USAGlobal mean sea level budget is rigorously adjusted during the period 2005–2015 with an emphasis on closing the budget on a year by year basis as opposed to using linear trends of global mean sea level components. The adjustment also accounts for the effect of snow, water vapor, and permafrost mass components as a lump sum. The approach provides better resolution for evaluating individual contribution of each budget component year by year in tandem with the other components. Year by year budget misclosures and the confidence intervals of the year by year adjusted budget components are suggestive of an increasing non-linearity in satellite altimetry derived global mean sea level measurements starting in 2012, which are not present in the other components. The solution also generates time series iteratively for the lumped snow, water vapor, and permafrost mass components as well as an estimate for its linear trend, 0.06±0.59 mm/yr. Nonetheless, its standard error is markedly large because of the un-modeled variability in satellite altimetry observed yearly averaged global mean sea level anomalies.https://doi.org/10.1515/jogs-2020-0109climate changeglobal mean sea level budgetcondition adjustment with unknownshelmert’s adjustment method
spellingShingle Iz H. Bâki
Shum C. K.
Year by year closure adjustment of global mean sea level budget, inclusive of lumped snow, water vapor, and permafrost mass components
Journal of Geodetic Science
climate change
global mean sea level budget
condition adjustment with unknowns
helmert’s adjustment method
title Year by year closure adjustment of global mean sea level budget, inclusive of lumped snow, water vapor, and permafrost mass components
title_full Year by year closure adjustment of global mean sea level budget, inclusive of lumped snow, water vapor, and permafrost mass components
title_fullStr Year by year closure adjustment of global mean sea level budget, inclusive of lumped snow, water vapor, and permafrost mass components
title_full_unstemmed Year by year closure adjustment of global mean sea level budget, inclusive of lumped snow, water vapor, and permafrost mass components
title_short Year by year closure adjustment of global mean sea level budget, inclusive of lumped snow, water vapor, and permafrost mass components
title_sort year by year closure adjustment of global mean sea level budget inclusive of lumped snow water vapor and permafrost mass components
topic climate change
global mean sea level budget
condition adjustment with unknowns
helmert’s adjustment method
url https://doi.org/10.1515/jogs-2020-0109
work_keys_str_mv AT izhbaki yearbyyearclosureadjustmentofglobalmeansealevelbudgetinclusiveoflumpedsnowwatervaporandpermafrostmasscomponents
AT shumck yearbyyearclosureadjustmentofglobalmeansealevelbudgetinclusiveoflumpedsnowwatervaporandpermafrostmasscomponents