Similarly other Zwally detractors pointed to papers such as Harig 2015 that claimed Antarctica was losing ice, but Harig 2015
used GIA models that were well known to over-estimate glacial rebound.
Lastly, make sure
they use GIA or AGS certification.
Antarctic ice sheet melting can only be manufactured
using GIA.
Not exact matches
They're the key factors
used by the
GIA (Gemological Institute of America) and AGS (American Gem Society) for rating diamonds.
Used in conjunction with the
GIA Diamond Grading Report included with every diamond we sell, you see all the details you need to make an informed purchase.
First will be the Glacial Isostatic Adjustment (
GIA) that they are
using to justify the 0.3 mm / yr increase in the data.
In our paper, we
used our own ice - sheet reconstruction for the
GIA correction.
The GRACE estimates for Antarctica
used in that study were not our own and were based on a mean of W12a and an alternative new
GIA model.
Our recently published Nature paper (King et al, 2012),
used GRACE gravity data to infer Antarctic ice mass trends as in previous work, but with an updated estimate of the
GIA correction.
One is based on a model of Glacial Isostatic Adjustment (
GIA model based), another
uses GPS estimates (GPS based).»]
The most - optimal values for changes in bedrock elevation (
GIA) in response to ice sheet mass changes have to be
used
Lets remember too that some studies
used GRACE to just detect accelerations in loss which would not be affected by
GIA.
The global mean sea level trend is corrected for the Glacial Isostatic Adjustment
using the ICE5G - VM2
GIA model (Peltier, 2004) to take into account the associated volume changes of the ocean.
I would not recommend
using the Peltier
GIA.
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..