Monday, August 8, 2016

Gravity and Geoid - 2nd IGGC (Trieste)


The 2nd IGGC was held in Trieste in 1998. Papers presented at this symposium were published in joutnal Bolletino di Geofisica Teorica ed Applicata (BGTA) Vol 40 No 3-4, Issue Sept-Dec 1999.
The paper "Difference between geoid undulation and quasigeoid height in Hungary" by Josef Adam of BUTE is still available (source).

All other papers from 2nd IGGC are available online at BGTA website - source.


Bolletino di Geofisica Teorica ed Applicata
(Vol 4, Sep-Dec 1999)

- - - - -

Sunday, August 7, 2016

Gravity and Geoid - 1st IGGC (Graz)


The 1st symposium of IGGG was held in Graz in 1994. It was hosted by Geodesy Dept TU Graz led by Professor Hans Sunkel and his team. The proceedings was published by Springer as IAG Symposia Vol 113.

One of the papers "Europian gravimetric geoid: satus report 1994" by Denker, Behrend & Torge is still available online (source).


IAG 113

Unfortnately this publication is not available at PSZ.
- - - - -

Saturday, August 6, 2016

Before IGFS it was IGGC


International Gravity Field Service (IGFS) event is held once in four years. The 1st in 2006 and followed subsequently in 2010 and 2014. The next up-coming one should be in 2018. Prior to IGFS the similar meeting was known as IGGC meeting organized by International Gravity and Geoid Commission (IGGC). There were three IGGC symposiums - the 1st in Graz (1994), the 2nd in Trieste Italy (1998) and the 3rd in Thessaloniki (2002).

The proceedings of the 1st was published by Springer. The 2nd published as journal and the 3rd was published by University of Thessaloniki.

Among the papers available from Trieste meeting is "study of the gravity field spectrum in Canada in view of cm-geoid determination" by Kotsakis & Sideris (source).

- - - - -

Friday, August 5, 2016

3rd IGFS 2014 - Shanghai


The 3rd IGFS was held in Shanghai China on 30th June to July 6, 2014. The event was held at Shanghai Astronomical Observatory hosted by Chinese Academy of Science. More than 120 papers were submitted to the symposium. The Scientific Committee were chaired by Riccardo Barzhargi of Italy.

The 3rd IGFS website can be accessed here. The program and presentation list can be download here.

The proceedings is to be published by Springer.


3rd IGFS General Assembly Shanghai Poster
- - - - -

Thursday, August 4, 2016

2nd IGFS 2010 - Fairbanks Alaska


After the successful of the 1st IGFS the 2nd Symposium followed in 2010 in Fairbanks Alaska. It was hosted by Geophysical Institute, University of Alaska on September 20-22. The Scientific Committee is led also by Rene Forsberg (as the 1st IGFS).

The 2nd IGFS website is here and info on papers presented are here.

Among the papers presented is "The DTU10 Global Gravity field and mean sea surface - improvements in the Arctic" by Ole Andersen - (dtu10).

- - - - -

Tuesday, August 2, 2016

Turkey Geoid Models


In Turkey the task of computing its national geoid is under the purview of Geodesy Department, a division under the General Command of Mapping. They have put up efforts publishing a number of geoid since mid-70's. The first Turkey geoid was determined in 1976 (Turkey Geoid 1976). It was determined using astrogeodetic method. Then in 1991 they came up with Turkish Geoid 1991 (TG-91) computed using LSC of the remove-restore method. In 1994 another new geoid was computed - Turkish Astrogeodetic Geoid 1994 (TAG-94). Another geoid computation up-dating effort was done in 1999 with the creation of updated Turkish Geoid (TG-99A). TG-99A  was computed also by LSC approach. All publications describing about Turkey Geoid 1976, TG-91, TAG-94 and TG-99A were written in Tukish.

The most recent geoid of Turkey is Turkish Geoid 2009 (TG-09). It was also computed using LSC approach of remove-restore procedure. In addition to TG-09 a Turkish Hybrid Geoid Model 2009 (THG-09) was also created. THG-09 was computed using FFT technique using EGM08, DNSC08 sea gravity anomalies as well as terrestrial gravity data. The work on THG-09 was published in Studia Geophys Geodaetica (Kilicoglu et. al, 2011).

- - - - -

Monday, August 1, 2016

Physical Geodesy Research at Czech


Research works in physical geodesy in Czech Republic are still gaining momentum. This is expected as there are a number of well known geodesist are of Czech origin who are still actively contributing their works. Among them are Milos Pick, Petr Holota and Pavel Novak.

Below are some of the PhD research topics in physical geodesy offered for year 2016-17 at University of West Bohemia (CZU) as shown at their website;

Application of potential theory for determination of the Earth's gravity field.
Comptation of precise local gravity field model for height transformation in the Czech Republic.
Determination of temporal variations of the Earth's gravity field from available local gravity data or global geopotential models.
Forward modelling in geodesy.
Gravity field field mapping through combination of heterogenous gravity field data.
Parameterization of the Earth's gravity field through combination of heterogenous gravimetric and gradiometric data.
Variational methods for solving problems of potential theory in physical geodesy.


Some of PhD geodesy topics at Czech universities


Petr Holota
- - - - -