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Links

Page history last edited by donngs@... 8 months, 2 weeks ago

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Updated links (verified 27 July 2018 - last updated 7 February 2023)

Matlab

The following link is to a repository of Matlab code developed by Prof Kai Borre.

https://github.com/mfkiwl/borre--easySuite/blob/master/geodesy/cart2geo.m

Leveling Adjustment by R.E. Deakin of RMIT

Deakin's personal web page: http://www.mygeodesy.id.au/least-squares/

Description of problem and worked example to determine height of unknown point from three known points.

http://www.mygeodesy.id.au/documents/Yarra%20Bend%20Level%20Net%20Adjustment%20Exercise.pdf

Description and worked out example of free leveling (no known height/s:

http://www.mygeodesy.id.au/documents/Free%20Net%20Level%20AdjustmentV2.pdf

NGS Geospatial Summit 2021

The following PDF files contain questions and answers from the subject virtual meeting. They are not included in the NGS page containing the presentations

May 4 - 2021 Summit Q&A document.pdf

May 5 - 2021 Summit Q&A document.pdf

The NGS page containing the summit presentations is: https://geodesy.noaa.gov/geospatial-summit/index.shtml

GNSS related

T.R. "Reading RINEX 2.11 Observation Data File"

This Technical Report by Antonio Pestana of the Instituto de Engenhario du Porto dated April 2015 is a good guide to elements of the file. ReadingRINEXObsFile_20150514.protected.pdf This file was downloaded from the Research Gate site.

Official US government site for information about GPS and related topics

https://www.gps.gov/technical/ There are links to standards and related topics.

GNSS data from NGA (National Geospatial Intelligence Agency

http://earth-info.nga.mil/GandG/update/index.php?action=home#tab_gnss

Bernese GNSS processing software user guide ver 5.2

https://boris.unibe.ch/72297/1/DOCU52.pdf

NASA precise-point-positioning service (description and links)

http://apps.gdgps.net/apps_underhood.php

Jet Propulsion Laboratory (JPL) time series plots for IGS sites

https://sideshow.jpl.nasa.gov/post/series.html

Modern Navigation Open Course Ware home page (MIT course 12.215 delivered Fall 2006 by Prof T. Herring)

https://ocw.mit.edu/courses/earth-atmospheric-and-planetary-sciences/12-215-modern-navigation-fall-2006/index.htm

Free on-line precise point positioning services linked from:

http://www2.unb.ca/gge/Resources/PPP/OnlinePPPs.html

Paper by Dr B. Remondi "Global Positioning System Carrier Phase: Description and Use" (1986) - local copy

GPSCarrierPhase-1.pdf - This is derived from his dissertation at CSR

NAVSTAR GPS Interface Control Document (ICD) - local copy

IS-GPS-200H.pdf

GLONASS ICD (2008)

http://gauss.gge.unb.ca/GLONASS.ICD.pdf

BeiDou Navigation Satellite System Signal in Space Interface Control Document

http://www2.unb.ca/gge/Resources/beidou_icd_english_ver2.0.pdf

User's manual for the GPS processing software package PAGE-NT from the US NGS

PNT6MAN.PDF

NASA JPS site for GIPSY-OASIS software

https://gipsy-oasis.jpl.nasa.gov/index.php?page=home

Note that the software package is approaching end-of-life and is to be superseded by GipsyX. Licenses can be requested through this site.

NGA Standardization Document for WGS84 - note that section 7 includes information about transforming between latest versions of WGS84 and NAD84.

http://earth-info.nga.mil/GandG/publications/NGA_STND_0036_1_0_0_WGS84/NGA.STND.0036_1.0.0_WGS84.pdf

Height related sites

India

”Towards the Modernization of Indian Vertical Datum”

https://fig.net/resources/proceedings/fig_proceedings/fig2018/papers/ts06e/TS06E_singh_9497.pdf

Canadian site: Natural Resources Canada - Height Reference System documentation (includes excellent glossary)

http://www.nrcan.gc.ca/earth-sciences/geomatics/geodetic-reference-systems/9054#telluroid

Canadian Geodetic Vertical Datum of 2013 (CGVD2013) article in Geomatica

http://pubs.cig-acsg.ca/doi/ref/10.5623/cig2016-101

US NGS Height Modernization Program site.

https://www.ngs.noaa.gov/heightmod/

Australian Height Datum

http://www.ga.gov.au/scientific-topics/positioning-navigation/geodesy/datums-projections/australian-height-datum-ahd

https://www.icsm.gov.au/sites/default/files/2020-08/AVWS%20Technical%20Implementation%20Plan_V1.2.pdf - Australian Vertical Working Surface (AVWS) Implementation Plan. Contains excellent diagram of heights system relationships to surfaces.

International Association of Geodesy (IAG) Vertical Datum Standardization page

https://ihrs.dgfi.tum.de/fileadmin/JWG_2011/VDS_2013_04_Report_to_IAG_EGU_2013.pdf

Heights, the Geopotential and Vertical Datums, paper by Prof Jekeli date Sep 2000

http://fgg-web.fgg.uni-lj.si/~/mkuhar/Zalozba/Heights_Jekeli.pdf

Excellent summary of different height types from U. Calgary course notes of Prof N. Sneeuw.

Excellent summary of different height systems

New Zealand Vertical Datum information (NZVD2016)

https://www.linz.govt.nz/data/geodetic-system/datums-projections-and-heights/vertical-datums

Republic of South Africa Vertical Datum information

https://www.researchgate.net/profile/Richard_Wonnacott/publication/267768167_A_New_Vertical_Datum_for_South_Africa/links/5a7176d60f7e9ba2e1cb69b9/A-New-Vertical-Datum-for-South-Africa.pdf?origin=publication_detail - Paper titled “A New Vertical Datum of South Africa” dated 31 January 2018.

Geophysics related

A free ebook "Physical Geodesy" by Martin Vermeer of Aalto University in Finland (2016):

https://users.aalto.fi/~mvermeer/mpk-en.pdf# page144

Slides for a lecture on gravity corrections and analysis for Applied Geophysics course at Berkeley

https://rallen.berkeley.edu/teaching/F04_GEO594_IntroAppGeophys/Lectures/L03_GravCorrAnalysis.pdf

Home page for Intro to Applied Geophysics course at Berkeley

https://rallen.berkeley.edu/teaching/F04_GEO594_IntroAppGeophys/Lectures/

Basic information about Gravity from the US Geological Survey (USGS)

Gravity info from USGS

Excellent compilation of information about gravity and isostasy

http://seismo.berkeley.edu/~rallen/eps122/lectures/L16.pdf

International Terrestrial Reference Frame (ITRF)

The International Earth Rotation and Reference System (IERS) Services page containing info on the ITRF, ICRS and their development, analysis and maintenance.

https://www.iers.org/IERS/EN/Publications/TechnicalNotes/TechnicalNotes.html;jsessionid=F088CEF0A428BE2E7DE52F3F61B3A2C8.live2

Technical Note 36: IERS Conventions (2010) containing definitions, numeric standards and modeling used in ITRF realizations

https://www.iers.org/IERS/EN/Publications/TechnicalNotes/tn36.html?nn=94912

Transformation parameters from ITRF2008 to previous ITRFs

http://itrf.ensg.ign.fr/doc_ITRF/Transfo-ITRF2008_ITRFs.txt

International Terrestrial Reference Frame site

http://itrf.ensg.ign.fr

Transformation parameters ITRF08 to NAD83(2011)

https://geodesy.noaa.gov/CORS/coords.shtml#TABLE

Some regional implementation/studies

Sistema de Referencia Geocentrico para Las Americas

http://mycoordinates.org/sirgas-reference-frame-in-latin-america/ - recent June 2018 article on SIRGAS

http://www.sirgas.org/en/ - home page for SIRGAS (English)
African Reference Frame
Stable North American Reference Frame

Software and programming

GPSTk Project to provide open-source libraries and apps to the SATNAV community

http://www.gpstk.org/bin/view/Documentation/WebHome - using ISO standard C++

US National Institute on Standards and Technology (NIST) statistical software and e-Handbook

https://www.itl.nist.gov/div898/handbook/dataplot.htm - software

https://www.itl.nist.gov/div898/handbook/index.htm - ehandbook

The open-source statistical software package R is available here:

https://www.r-project.org

Commercial package Matlab by Mathworks (link is to the least expensive "Home" edition):

https://www.mathworks.com/pricing-licensing.html?prodcode=ML&intendeduse=home

https://www.tutorialspoint.com/matlab/matlab_quick_guide.htm- Matlab "quick guide"

http://www.mathworks.com/matlabcentral/fileexchange/15285 - Matlab script files related to geodetic computations by Dr. Michael Craymer, GSD Canada

Open source alternative to Matlab that I like is:

https://www.scilab.org - Matlab script files must be "tweaked" to account for some differences in syntax.

Prof K. Borre Matlab scripts developed in support of classic text "Linear Algebra, Geodesy and GPS" co-written with Prof G. Strang:

http://kom.aau.dk/~borre/

Useful code for GNSS programmers (most in C/C++)

https://www.ngs.noaa.gov/gps-toolbox/progLinks.htm

Generic Mapping Tools (GMT)

https://www.soest.hawaii.edu/gmt/ - GMT is an open source collection of ~65 tools for manipulating geographic and Cartesian data sets (including filtering, trend fitting, gridding, projecting, etc.) and producing Encapsulated PostScript File (EPS) illustrations.

Basic tutorial on use of GMT. https://www.youtube.com/watch?v=EQgxDmCXvj4 2020 GMT for Geodesy Short Course. Delivered by Paul Wessel. Link copied on 7 February 2023.