Sentences with phrase «sea level budget»

From Karina (2014 Ocean Sciences p 547): «Our findings show that the area around the Tropical Asian Archipelago (TAA) is important to closing the global sea level budget on interannual to decadal timescales, pointing out that the steric estimate from Argo is biased low, as the current mapping methods are insufficient to recover the steric signal in the TAA region.»
In summary: Values of GMSL on the lower end (e.g. 1.1 or 1.2 mm yr - 1) come closest to balancing sea level budgets for the period 1900 — 1990.
A new paper Assessing the Globally Averaged Sea Level Budget on Seasonal and Interannual Time Scales (Willis 2008) displays up - to - date data on ocean heat.
They hoped to balance struggling sea level budgets by re-analyzing and adjusting estimates of the contributions from melting glaciers and ice caps, thermal expansion, and the effects of dam building and groundwater extraction.
But if the tritium derived estimates are valid, balancing water cycle and sea level budgets becomes more enigmatic.
Jevrejeva et al. (2016) have prepared a review article on the 20th century sea level budget, clarifying the outstanding issues.
The AR5 concluded that the observational sea level budget can not be rigorously assessed for 1901 — 1990, due to insufficient observational information to estimate ice sheet contributions with high confidence before the 1990s; in addition ocean data sampling is too sparse to permit an estimate of global - mean thermal expansion before the 1970s.
It is noteworthy that whereas ice melt from glaciers, ice caps and ice sheets is very important in the sea level budget (contributing about 40 %), the energy associated with ice melt contributes only about 1 % to the Earth's energy budget.
The grey line is the total sea level minus the steric sea level and should match the observed black line to close the sea level budget.
Willis 2008 assesses the sea level budget which is described by the following equation:
To close the sea level budget, total sea level rise (hTOT observed by altimeter satellites) should match the steric component (hSTERIC observed by Argo) plus the mass component (hMASS calculated from GRACE satellite measurements of the Earth's gravity field).
Values for the GIA correction and glacier contribution needed to close the sea level budget and explain GRACE - based mass estimates over the recent years agree well with totally independent determinations.
Furthermore, the sea level budget approach presented in this study allows us to constrain independent estimates of the Glacial Isostatic Adjustment (GIA) correction applied to GRACE - based ocean and ice sheet mass changes, as well as of glaciers melting.
Given that the uncertainties in the sea level budget are on the order of 0.1 mm / year, that implies that the «latent heat» loss to space has to be some many times less than what I first postulated.
The observational results are assessed, followed by our current interpretation of these observations in terms of climate change and other processes, and ending with a discussion of the sea level budget (Section 5.5.6).
To balance their sea level budgets, researchers assert melting glaciers have added ~ 0.8 mm / year to recent sea level rise.
researchers suggested the sea level budget could be balanced and the IPCC's unaccounted for contribution to sea level rise could be explained by making 5 assumptions:
Monthly observations from the Gravity Recovery and Climate Experiment (GRACE) can provide estimates of the ocean mass component of the sea level budget, but full use of the data requires a detailed understanding of its errors and biases.
You refer to the ongoing loss of the Arctic Sea Ice cap, which is indeed ongoing, but floating (and thus adds nothing to the sea level budget).
Using the corrected global mean sea level time series, Dieng et al. (2017) and Chen et al. (2017) found improved closure of the sea level budget compared to the uncorrected data.
If the budget analysis matches the tide guage analysis, then the sea level budget is closed.
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