Editing GRACE and GRACE-FO (section)

=== Other signals ===
GRACE is sensitive to regional variations in the mass of the atmosphere and high-frequency variation in ocean bottom pressure.  These variations are well understood and are removed from monthly gravity estimates using [[numerical weather prediction|forecast models]] to prevent [[aliasing]].<ref>{{cite web |title=GRACE AOD1B |url=http://www.gfz-potsdam.de/en/aod1b/ |website=gfz-potsdam.de |publisher=[[GFZ German Research Centre for Geosciences]] |access-date=11 June 2015}}</ref>  Nonetheless, errors in these models do influence GRACE solutions.<ref>{{cite book |last1=Ge |first1=Shengjie |title=GPS radio occultation and the role of atmospheric pressure on spaceborne gravity estimation over Antarctica |date=2006 |publisher=Ohio State University |url=https://etd.ohiolink.edu/ap/10?0::NO:10:P10_ACCESSION_NUM:osu1149070384 |access-date=11 June 2015 |archive-date=13 June 2015 |archive-url=https://web.archive.org/web/20150613134056/https://etd.ohiolink.edu/ap/10?0::NO:10:P10_ACCESSION_NUM:osu1149070384 |url-status=dead }}</ref>

GRACE data also contribute to fundamental physics. They have been used to re-analyze data obtained from the [[LAGEOS]] experiment to try to measure the relativistic [[frame-dragging]] effect.<ref>{{cite journal |last1=Ciufolini |first1=I. |last2=Pavlis |first2=E.C. |year=2004 |title=A confirmation of the general relativistic prediction of the Lense–Thirring effect |url=http://www.dm.unipi.it/cluster-pages/tommei/mc/Lensenature03007.pdf |journal=Nature |volume=431 |issue=7011 |pages=958–960 |doi=10.1038/nature03007 |pmid=15496915 |bibcode=2004Natur.431..958C |s2cid=4423434 |url-status=dead |archive-url=https://web.archive.org/web/20150613230457/http://www.dm.unipi.it/cluster-pages/tommei/mc/Lensenature03007.pdf |archive-date=13 June 2015}}</ref><ref>{{cite journal |last1=Ciufolini |first1=I. |last2=Pavlis |first2=E.C. |last3=Peron |first3=R. |year=2006 |title=Determination of frame-dragging using Earth gravity models from CHAMP and GRACE |journal=New Astron |volume=11 |issue=8 |pages=527–550 |doi=10.1016/j.newast.2006.02.001 |bibcode=2006NewA...11..527C}}</ref>