1. Geoid models
   1. Public models (Canadian)
   2. Public models (Global)
   3. Error propagation in the geoid model (Absolute)
2. Validation
   1. Levelling adjustments
   2. GPS on BM
   3. Deflections of the vertical
   4. Sea Surface Topography
   5. Geoid Models for USA
3. Data
   1. Gravity
   2. Digital Elevation Models
   3. Topographical Density
4. Time variation
5. Reference Frames

a. Public models (Canadian)

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GSD91
GSD95	GSD95 - GSD91
CGG2000	CGG2000 - GSD95
CGG2005	CGG2005 - CGG2000	CGG2005 horizontal gradient
CGG2010	CGG2010 - CGG2005	CGG2010 horizontal gradient
Topography, Bathymetry and Geoid (CGG2005)

b. Public models (Global)

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WW15MGH (EGM96)	WW15MGH - CGG2005
EGM08	CGG2005 - EGM08
CGG2010 - EGM08

c. Error propagation in geoid models (Absolute)

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CGG2005

CGG2010

a. Levelling adjustments

Federal first order levelling network:

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Levelling network

+ last epoch

+ topography

b. GPS on BMs

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GPS Supernet v3.3k

c. Deflections of the vertical

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Astro-deflections of the vertical in Canada

d. Sea Surface Topography

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North Atlantic: Oceanographic approach

North Atlantic: Geodetic approach

e. Geoid models for USA

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USGG2003 - CGG2005
USGG2009 - CGG2005	AKGG2009 - CGG2005
CGG2010 - USGG2009	CGG2010 - AKGG2009

a. Gravity

Canadian gravity measurements on land:

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1900 - 1949	1950 - 1959	1960 - 1969	1970 - 1979
1980 - 1989	1990 - 1999	1900 - 1999

Canadian gravity measurements on water and ice:

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1900 - 1949	1970 - 1979	1980 - 1989	1990 - 1999
1900 - 1999

North American gravity fields:

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Refined Bouguer gravity field (CGG2005)

Helmert Gravity field (CGG2005)

b. Digital Elevation Models (DEM)

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Composite DEM used for CGG2005 (DEM)
CDED 1:50k	CDED 1:50k - DEM
SRTM 3	CDED 1:50k - SRTM 3	SRTM 3" - DEM
SRTM 1	SRTM 1" - SRTM 3	SRTM 1" - DEM
ASTER	ASTER - CDED 1:50K
ACE	ACE - CDED 1:50K

c. Topographical density

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Topographical density for Canada

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Geoid (Annual)

Geoid (Monthly) [WMV, 2.5 Mb, player]

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Simplified concept of current geocenter differences, NAD83(CSRS) and WGS84

NAD83(CSRS) - ITRF97: Height component (h)