Sentences with phrase «isostatic adjustment»
Isostatic adjustment refers to the process of the Earth's crust reaching a balanced state after being subjected to the weight or removal of material. It essentially describes how the Earth's surface adjusts or responds to changes in the distribution of weight over time. Full definition
«Palaeoshoreline records of glacial isostatic adjustment in the Dry Valleys region, Antarctica.»
polenet.org
Observation of glacial isostatic adjustment in «stable» North America with GPS.
Statistically significant trends obtained from records longer than 40 years yielded sea - level - rise estimates between 1.06 — 1.75 mm / yrear - 1, with a regional average of 1.29 mm yr - 1, when corrected for global isostatic adjustment (GIA) using model data, with a regional average of 1.29 mm - 1..
In addition, they find that the spatial variability in regional sea level rise is largely due to the thermal expansion of sea water and ongoing isostatic adjustment resulting from the end of the last glacial period.
Konfal, S. A., Wilson, T. J., Bevis, M. G., Kendrick, E. C., Dalziel, I. W., Smalley, R., Willis, M. J., Heeszel, D. S., Wiens, D. A., (2013), GPS observations of glacial isostatic adjustment into the Antarctic Interior, Abstract G43B - 0981 presented at 2013 Fall Meeting, AGU, San Francisco, Calif., 9 - 13 Dec..
When the loading of the lithosphere and / or the mantle is changed by alterations in land ice mass, ocean mass, sedimentation, erosion or mountain building, vertical isostatic adjustment results, in order to balance the new load.
Additionally, unadjusted GRACE gravity data has suggested no lost ice mass and all estimates of ice gains or loss depend on which Glacial Isostatic Adjustments modelers choose to use.
Furthermore, regional variations and local differences depend on several factors, including non-climate-related factors such as island tectonic setting and postglacial isostatic adjustment.
My interested area is involved with ice sheet modelling in polar regions, glacier isostatic adjustment and global sea level rise.
«B) how much SLR Note that B is dependent on A.» True but not only due to A So there is no glacial rebound [glacial isostatic adjustment] and no erosion?
Our comparison of the GPS data to models for glacial isostatic adjustment suggests that some parts of western coastal Greenland were experiencing accelerated melting of coastal ice by the late 1990s.
Understanding glacial isostatic adjustment and ice mass change in Antarctica using integrated GPS and seismology observations.
One is the natural sinking of land called glacio - isostatic adjustment.
Prediction of mass fluxes of polar ice sheets, improved models of glacial isostatic adjustment, and better modeling and prediction of sea - level change.
Wilson, T., Bevis, M., Konfal, S., Barletta, V., Aster, R., Chaput, J., Heeszel, D., Wiens, D., Lloyd, A., (2014), The POLENET - ANET integrated GPS and seismology approach to understanding glacial isostatic adjustment and ice mass change in Antarctica, Abstract G51A - 034, presented at 2014 Fall Meeting, AGU, San Francisco, Calif..
Wiens, D., Heeszel, D., Sun, X., Lloyd, A., Nyblade, A., Anandakrishnan, S., Aster, R., Chaput, J., Huerta, A., Wilson, T., New Antarctic seismic structure models and implications for glacial isostatic adjustment, Proc.
Eight new GPS receivers have been installed on bedrock in the southern Antarctic Peninsula for improvements in glacial isostatic adjustment (GIA) model accuracy and GRACE - based ice mass change estimates.
But as you have just pointed out, the signal of glacial isostatic adjustment is now smaller than the signal derived from GRACE.
This update also reversed the isostatic adjustment that they put in earlier this year.
Vertical land movements such as resulting from glacial isostatic adjustment (GIA), tectonics, subsidence and sedimentation influence local sea level measurements but do not alter ocean water volume; nonetheless, they affect global mean sea level through their alteration of the shape and hence the volume of the ocean basins containing the water.
I covered the isostatic adjustment here and the previous update here.
Isostatic adjustment will continue in North America as estimates based on depth of ice indicate total depression at 400 m (1300 feet).
You really need to look at multi-decadal time periods to determine trends, as in Church and White 2011 who found «1900 to 2009 is 1.7 ± 0.2 mm / year and since 1961 is 1.9 ± 0.4 mm / year» and «For 1993 — 2009 and after correcting for glacial isostatic adjustment, the estimated rate of rise is 3.2 ± 0.4 mm / year from the satellite data and 2.8 ± 0.8 mm / year from the in situ data».
Hi Chris - yes the uncertainties are large, much of which is down to the fact that isostatic adjustment may have affected raised shorelines in either direction.
Some groups have tried to develop models of the rebounding land, so that sea level researchers can apply «Glacial Isostatic Adjustments» (GIA) to their data to correct for the effects.
Finally, they believe that an adjustment of +0.3 mm / yr is necessary to account for Peltier's Glacial Isostatic Adjustments (see Section 4).
Both are as a result of glacial isostatic adjustment, the ongoing movement of land once burdened by ice - age glaciers.
These highstands imply an ongoing and moderate, sub - mm / yr, sea - level fall in the far field of the Late Pleistocene ice cover that has long been linked to the process of glacial isostatic adjustment (GIA; Clark et al., 1978).
The only obvious match is what is expected: Glacial isostatic adjustment.