Time Rate of Change of Gravity in North America and Greenland due to Post Glacial Rebound and Other Tectonic Movements

Simple item page
dc.contributor.advisorPagiatakis, Spiros D.
dc.creatorKamtchang, Franck Olivier Kapoko
dc.date.accessioned2017-07-27T13:57:57Z
dc.date.available2017-07-27T13:57:57Z
dc.date.copyright2017-04-13
dc.date.issued2017-07-27
dc.date.updated2017-07-27T13:57:56Z
dc.degree.disciplineEarth & Space Science
dc.degree.levelMaster's
dc.degree.nameMSc - Master of Science
dc.description.abstractIn the process to regain isostatic equilibrium following the Last Glacial Maximum, the Earths crust is experiencing continuous uplift and/or subsidence, a phenomenon called Glacial Isostatic Adjustment (GIA). We determine the time rate of change of gravity (g-dot) due to GIA by estimating it directly from a Least-Squares adjustment of an integrated gravity network covering the continent. Observation equations are created based on historical relative gravity measurements and the network is constrained using g-dot values obtained from absolute gravity measurements. Recognizing that gravity variation is also influenced by other significant continuous geophysical processes (tides, tidal load and hydrology), such effects are removed by correcting all gravity measurements at the pre-adjustment stage. Results are presented in the form of a g-dot map and demonstrate that Canadas National Gravity Data Base (NGDB), with its over 50-year-long history, can provide us with useful constraints for the evaluation/verification and refinement of post-glacial rebound models.
dc.identifier.urihttp://hdl.handle.net/10315/33620
dc.language.isoen
dc.rightsAuthor owns copyright, except where explicitly noted. Please contact the author directly with licensing requests.
dc.subjectPaleoclimate science
dc.subject.keywordsIce Age
dc.subject.keywordsPost Glacial Rebound
dc.subject.keywordsPGR
dc.subject.keywordsGlacial Isostatic Adjustment
dc.subject.keywordsGIA
dc.subject.keywordsGeoid
dc.subject.keywordsTime Rate of Change of gravity
dc.subject.keywordsg-dot
dc.subject.keywordsNorth America
dc.subject.keywordsGreenland
dc.subject.keywordsGravity
dc.subject.keywordsCanadian Gravity Standardization Network
dc.subject.keywordsCGSN
dc.subject.keywordsCanadian National Gravity Data Base
dc.subject.keywordsNGDB
dc.subject.keywordsLast Glacial Maximum
dc.subject.keywordsLGM
dc.subject.keywordsEarth Deformation
dc.subject.keywordsSystematic Errors
dc.subject.keywordsConstraints
dc.subject.keywordsINPUTGRAVNET
dc.subject.keywordsGravimeter Drift
dc.subject.keywordsa-priori Variance Factor
dc.subject.keywordsa-posteriori Variance Factor
dc.subject.keywordsGravity Stations
dc.subject.keywordsGravity Ties
dc.subject.keywordsμGal/a
dc.subject.keywordsHydrology
dc.subject.keywordsBody Tides
dc.subject.keywordsOcean Tide Loading
dc.subject.keywordsPolar Motion
dc.subject.keywordsLeast-Squares Spectral Analysis
dc.subject.keywordsLSSA
dc.subject.keywordsGRAVNET
dc.subject.keywordsWaterGAP
dc.subject.keywordsWaterGAP Global Hydrology Model
dc.subject.keywordsWGHM
dc.subject.keywordsGWAVE
dc.subject.keywordsLOADSDP
dc.subject.keywordsGENLOAD
dc.subject.keywordsFinite Element Solution
dc.subject.keywordsFES
dc.subject.keywordsTime Rate of Change of Geoid Undulation
dc.subject.keywordsN-dot
dc.subject.keywordsLeast-Squares Adjustment
dc.subject.keywordsCrustal Motion
dc.subject.keywordsRelative Gravimeter
dc.subject.keywordsAbsolute Gravimeter
dc.subject.keywordsWeighted Least-Squares Regression
dc.subject.keywordsWLSR
dc.titleTime Rate of Change of Gravity in North America and Greenland due to Post Glacial Rebound and Other Tectonic Movements
dc.typeElectronic Thesis or Dissertation

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Kapoko_Kamtchang_Franck_Olivier_2017_Masters.pdf
Size:
3.48 MB
Format:
Adobe Portable Document Format
Download
License bundle
Now showing 1 - 2 of 2
No Thumbnail Available
Name:
license.txt
Size:
1.83 KB
Format:
Plain Text
Description:
Download
No Thumbnail Available
Name:
YorkU_ETDlicense.txt
Size:
3.38 KB
Format:
Plain Text
Description:
Download

Collections

Earth & Space Science

All items in the YorkSpace institutional repository are protected by copyright, with all rights reserved except where explicitly noted.