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Auteur Yoomin Jean |
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Affiner la recherche Interroger des sources externesCombination of GRACE monthly gravity fields on the normal equation level / Ulrich Meyer in Journal of geodesy, vol 93 n° 9 (September 2019)
Titre : Combination of GRACE monthly gravity fields on the normal equation level Type de document : Article/Communication Auteurs : Ulrich Meyer, Auteur ; Yoomin Jean, Auteur ; A. Kvas, Auteur ; et al., Auteur Année de publication : 2019 Article en page(s) : pp 1645 - 1658 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique
[Termes IGN] analyse de variance
[Termes IGN] champ de pesanteur terrestre
[Termes IGN] données GRACE
[Termes IGN] filtrage du bruit
[Termes IGN] gravimétrie spatiale
[Termes IGN] mesure de la qualité
[Termes IGN] série temporelleRésumé : (Auteur) A large number of time-series of monthly gravity fields derived from GRACE data provide users with a wealth of information on mass transport processes in the system Earth. The users are, however, left alone with the decision which time-series to analyze. Following the example of other well-known combination services provided by the geodetic community, the prototype of a combination service has been developed within the frame of the project EGSIEM (2015–2017) to combine the different time-series with the goal to provide a unique and superior product to the user community. Four associated analysis centers (ACs) of EGSIEM, namely AIUB, GFZ, GRGS and IfG, generated monthly gravity fields which were then combined using the different normal equations (NEQs). But the relative weights determined by variance component estimation (VCE) on the NEQ level do not lead to an optimal combined product due to the different processing strategies applied by the individual ACs. We therefore resort to VCE on the solution level to derive relative weights that are representative of the noise levels of the individual solutions. These weights are then applied in the combination on the NEQ level. Prior to combination, empirical scaling factors that are based on pairwise combinations of NEQs are derived to balance the impact of the NEQs on the combined solution. We compare the processing approaches of the different ACs and introduce quality measures derived either from the differences w.r.t. the monthly means of the individual gravity fields or w.r.t. a deterministic signal model. After combination, the gravity fields are validated by comparison to the official GRACE SDS RL05 time-series and the individual contributions of the associated ACs in the spectral and the spatial domain. While the combined gravity fields are comparable in signal strength to the individual time-series, they stand out by their low noise level. In terms of noise, they are in 90% of all months as good or better than the best individual contribution from IfG and significantly less noisy than the official GRACE SDS RL05 time-series. Numéro de notice : A2019-507 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-019-01274-6 Date de publication en ligne : 02/07/2019 En ligne : https://doi.org/10.1007/s00190-019-01274-6 Format de la ressource électronique : URL Article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=93792
in Journal of geodesy > vol 93 n° 9 (September 2019) . - pp 1645 - 1658[article]
Titre : IGS International GNSS Service technical report 2015 Type de document : Rapport Auteurs : Yoomin Jean, Éditeur scientifique ; Rolf Dach, Éditeur scientifique Editeur : Bern : Astronomical Institute Année de publication : 2016 Importance : 220 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] Global Navigation Satellite SystemRésumé : (Editeur) Applications of the Global Navigation Satellite Systems (GNSS) to Earth Sciences are numerous. The International GNSS Service (IGS), a federation of government agencies, universities and research institutions, plays an increasingly critical role in support of GNSS–related research and engineering activities. This Technical Report includes contributions from the IGS Governing Board, the Central Bureau, Analysis Centers, Data Centers, station and network operators, working groups, pilot projects, and others highlighting status and important activities, changes and results that took place and were achieved during 2015. Note de contenu : 1. Executive Groups
- Governing Board / G. Johnston
- Central Bureau / R. Neilan, S. Fisher, G. Walia, D. Maggert, and A. Craddock
2. Analysis Centers
Analysis Center Coordinator,
- Center for Orbit Determination in Europe (CODE)
- Natural Resources Canada (NRCan)
- European Space Operations Center (ESOC)
- GeoForschungsZentrum (GFZ)
- Geodetic Observatory Pecný (GOP), No report submitted
- Centre National d’Etudes Spatiales/Collecte Localisation satellites (CNES/CLS)
- Jet Propulsion Laboratory (JPL)
- Massachusetts Institute of Technology (MIT) No report submitted
- National Geodetic Survey (NGS)
- Scripps Institution of Oceanography (SIO) No report submitted
- United States Naval Observatory (USNO)
- University of Wuhan (WHU)
- EUREF Permanent Network (EPN)
- SIRGAS
3. Data Centers
- Infrastructure Committee
- Crustal Dynamics Data Information System (CDDIS)
- Scripps Institution of Oceanography (SIO), No report submitted
- Institut National de l’Information Géographique et Forestière (IGN), No report submitted
- Korean Astronomy and Space Science Institute (KASI) No report submitted
4. Working Groups, Pilot Projects
- Antenna Working Group 133
- Bias and Calibration Working Group
- Clock Products Working Group
- Data Center Working Group
- Ionosphere Working Group
- Multi–GNSS Working Group
- Space Vehicle Orbit Dynamics Working Group, No report submitted
- Real–Time Service
- Reference Frame Working Group
- RINEX Working Group
- Tide Gauge Benchmark Monitoring Project
- Troposphere Working GroupNuméro de notice : 17513 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Rapport En ligne : http://ftp://igs.org/pub/resource/pubs/2015_techreport.pdf Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=90494 Documents numériques
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IGS International GNSS Service technical report 2015Adobe Acrobat PDF
Titre : IGS International GNSS Service technical report 2014 Type de document : Rapport Auteurs : Rolf Dach, Éditeur scientifique ; Yoomin Jean, Éditeur scientifique Editeur : Bern : Astronomical Institute Année de publication : 2015 Importance : 194 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] Global Navigation Satellite SystemRésumé : (Editeur) Applications of the Global Navigation Satellite Systems (GNSS) to Earth Sciences are numerous. The International GNSS Service (IGS), a federation of government agencies, universities and research institutions, plays an increasingly critical role in support of GNSS–related research and engineering activities. This Technical Report 2014 includes contributions from the IGS Governing Board, the Central Bureau, Analysis Centers, Data Centers, station and network operators, working groups, pilot projects, and others highlighting status and important activities, changes and results that took place and were achieved during 2013. Note de contenu : 1. Executive Groups
- Governing Board / U. Hugentobler
- Central Bureau / R. Neilan, S. Fisher, R. Khachikyan, A. Craddock, D. Maggert, and G. Walia
2. Analysis Centers
Analysis Center Coordinator, No report submitted
- Center for Orbit Determination in Europe (CODE) / R. Dach, S. Schaer, S. Lutz, C. Baumann, H. Bock, E. Orliac, L. Prange, D. Thaller, L. Mervart, A. Jäggi, G. Beutler, E. Brockmann, D. Ineichen, A. Wiget, G. Weber, H. Habrich, W. Söhne, J. Ihde, P. Steigenberger, and U. Hugentobler
- Natural Resources Canada (NRCan) / B. Donahue, R. Ghoddousi–Fard, Y. Mireault, and F. Lahaye
- European Space Agency/European Space Operations Center (ESA/ESOC) / T. A. Springer, F. Dilssner, W. Enderle, J. Feltens, M. van Kints, I. Romero, E. Schoenemann, and R. Zandbergen
- GeoForschungsZentrum (GFZ) / M. Fritsche, Z. Deng, M. Ge, T. Nischan, M. Uhlemann, G. Beeskow,
A. Brandt, M. Bradke, and M. Ramatschi
- Geodetic Observatory Pecný (GOP), No report submitted
- Centre National d’Etudes Spatiales/Collecte Localisation Satellites (CNES/CLS) / S. Loyer, F. Mercier, F. Perosanz, H. Capdeville, A. Mezerette, and L. Lestarquit
- Jet Propulsion Laboratory (JPL) / S. Desai, W. Bertiger, M. Garcia-Fernandez, B. Haines, D. Kuang, C. Selle, A. Sibois, A. Sibthorpe, and J. Weiss
- Massachusetts Institute of Technology (MIT) No report submitted
- National Geodetic Survey (NGS) No report submitted
- Scripps Institution of Oceanography (SIO) No report submitted
- United States Naval Observatory (USNO) / C. Hackman, S. M. Byram, V. J. Slabinski, J. Tracey, and J. R. Rohde
- University of Wuhan (WHU) / C. Shi, M. Li, Q. Zhao, and Y. Lou
- EUREF Permanent Network (EPN) / C. Bruyninx, A. Araszkiewicz, E. Brockmann, A. Kenyeres, R. Pacione,
W. Söhne, G. Stangl, K. Szafranek, and C. Völksen
- SIRGAS / L. Sánchez
3. Data Centers
- Infrastructure Committee / I. Romero
- Crustal Dynamics Data Information System (CDDIS) / C. Noll
- Scripps Institution of Oceanography (SIO), No report submitted
- Institut National de l’Information Géographique et Forestière (IGN), No report submitted
- Korean Astronomy and Space Science Institute (KASI) No report submitted
4. Working Groups, Pilot Projects
- Antenna Working Group 133 / R. Schmid
- Bias and Calibration Working Group / S. Schaer
- Clock Products Working Group, No report submitted
- Data Center Working Group /C. Noll
- Ionosphere Working Group / A. Krankowski, Y. Cherniak, I. Zakharenkova, R. Langley, M.D. Butala,
A. Komjathy, T.F. Runge, B.D. Wilson, X. Pi, A.J. Mannucci, M. Hernandez–Pajares, and P. Vergados
- Multi–GNSS Working Group / O. Montenbruck and P. Steigenberger
- Space Vehicle Orbit Dynamics Working Group, No report submitted
- Real–Time Pilot Project / L. Agrotis, M. Caissy, A. Ruelke, and S. Fisher
- Reference Frame Working Group / P. Rebischung, B. Garayt, and Z. Altamimi
- RINEX Working Group, No report submitted
- Tide Gauge Benchmark Monitoring Project / T. Schöne, R. Bingley, Z. Deng, J. Griffiths, H. Habrich, A. Hunegnaw, M. Jia, M. King, M. Merrifield, G. Mitchum, R. Neilan, C. Noll, E. Prouteau, L. Sánchez, N. Teferle, D. Thaller, P. Tregoning, G. Wöppelmann, and P. Woodworth
- Troposphere Working Group / C. Hackman and S. ByramNuméro de notice : 17124 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Rapport DOI : sans En ligne : http://ftp://igs.org/pub/resource/pubs/2014_techreport_wDOI.pdf Format de la ressource électronique : URL Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80361 Documents numériques
en open access
IGS technical report 2014Adobe Acrobat PDF
Titre : IGS International GNSS Service technical report 2013 Type de document : Rapport Auteurs : Rolf Dach, Éditeur scientifique ; Yoomin Jean, Éditeur scientifique Editeur : Bern : Astronomical Institute Année de publication : 2014 Collection : IGS International GNSS Service technical report num. 2013 Importance : 194 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] Global Navigation Satellite SystemRésumé : (Editeur) Applications of the Global Navigation Satellite Systems (GNSS) to Earth Sciences are numerous. The International GNSS Service (IGS), a federation of government agencies, universities and research institutions, plays an increasingly critical role in support of GNSS–related research and engineering activities. This Technical Report 2013 includes contributions from the IGS Governing Board, the Central Bureau, Analysis Centers, Data Centers, station and network operators, working groups, pilot projects, and others highlighting status and important activities, changes and results that took place and were achieved during 2013. Note de contenu : 1. Executive Groups
- Governing Board / U. Hugentobler
- Central Bureau / R. Neilan, S. Fisher, R. Khachikyan, A. Craddock, D. Maggert, and G. Walia
2. Analysis Centers
Analysis Center Coordinator, No report submitted
- Center for Orbit Determination in Europe (CODE) / R. Dach, S. Schaer, S. Lutz, C. Baumann, H. Bock, E. Orliac, L. Prange, D. Thaller, L. Mervart, A. Jäggi, G. Beutler, E. Brockmann, D. Ineichen, A. Wiget, G. Weber, H. Habrich, W. Söhne, J. Ihde, P. Steigenberger, and U. Hugentobler
- Natural Resources Canada (NRCan) / Y. Mireault, R. Ghoddousi–Fard, B. Donahue, and F. Lahaye
- European Space Agency/European Space Operations Center (ESA/ESOC) / T. A. Springer, L. Agrotis, J. Feltens, M. van Kints, N. Romero, F. Dilssner, C. Flohrer, W. Enderle, E. Schoenemann, and R. Zandbergen
- GeoForschungsZentrum (GFZ) / G. Gendt, Z. Deng, M. Ge, T. Nischan, M. Uhlemann, G. Beeskow, A. Brandt, and M. Bradke
- Geodetic Observatory Pecný (GOP) / J. Dousa and P. Vaclavovic
- Centre National d’Etudes Spatiales/Collecte Localisation Satellites (CNES/CLS) / S. Loyer, F. Perosanz, F. Mercier, H. Capdeville, A. Mezerette, and J.–C. Marty
- Jet Propulsion Laboratory (JPL) / S. Desai, W. Bertiger, B. Haines, D. Kuang, C. Selle, A. Sibois, A. Sibthorpe, and J. Weiss
- Massachusetts Institute of Technology (MIT) No report submitted
- National Geodetic Survey (NGS) No report submitted
- Scripps Institution of Oceanography (SIO) No report submitted
- United States Naval Observatory (USNO) /C. Hackman, S. M. Byram, V. J. Slabinski, J. Tracey , and J. R. Rohde
- University of Wuhan (WHU) No report submitted
- EUREF Permanent Network (EPN) / C. Bruyninx, E. Brockmann, H. Habrich, A. Kenyeres, W. Söhne, G. Stangl, K. Szafranek, and C. Völksen
- SIRGAS / L. Sánchez
3. Data Centers
- Infrastructure Committee / I. Romero
- Crustal Dynamics Data Information System (CDDIS) / C. Noll
- Scripps Institution of Oceanography (SIO), No report submitted
- Institut National de l’Information Géographique et Forestière (IGN), No report submitted
- Korean Astronomy and Space Science Institute (KASI) No report submitted
4. Working Groups, Pilot Projects
- Antenna Working Group 133 / R. Schmid
- Bias and Calibration Working Group / S. Schaer
- Clock Products Working Group, No report submitted
- Data Center Working Group /C. Noll
- Ionosphere Working Group / A. Krankowski, Y. Cherniak, and I. Zakharenkova
- Multi–GNSS Working Group / O. Montenbruck
- Space Vehicle Orbit Dynamics Working Group, No report submitted
- Real–Time Pilot Project, No report submitted
- Reference Frame Working Group / P. Rebischung, B. Garayt, X. Collilieux, and Z. Altamimi
- RINEX Working Group / K. MacLeod, L. Agrotis, and R.Dach
- Tide Gauge Benchmark Monitoring Project / T. Schöne, R. Bingley, Z. Deng, J. Griffiths, H. Habrich, A. Hunegnaw, M. Jia, M. King, M. Merrifield, G. Mitchum, R. Neilan, C. Noll, E. Prouteau, L. Sánchez, N. Teferle, D. Thaller, P. Tregoning, G. Wöppelmann, and P. Woodworth
- Troposphere Working Group / C. Hackman and S. ByramNuméro de notice : 22450 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Rapport Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79976 Documents numériques
en open access
22450-IGS-2013_technical_report.pdfAdobe Acrobat PDF
Titre : IGS International GNSS Service technical report 2012 Type de document : Rapport Auteurs : Rolf Dach, Éditeur scientifique ; Yoomin Jean, Éditeur scientifique Editeur : Bern : Astronomical Institute Année de publication : 2013 Collection : IGS International GNSS Service technical report num. 2012 Importance : 214 p. Format : 21 x 30 cm Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie spatiale
[Termes IGN] Global Navigation Satellite SystemRésumé : (Editeur) Applications of the Global Navigation Satellite Systems (GNSS) to Earth Sciences are numerous. The International GNSS Service (IGS), a federation of government agencies, universities and research institutions, plays an increasingly critical role in support of GNSS–related research and engineering activities. This Technical Report 2012 includes contributions from the IGS Governing Board, the Central Bureau, Analysis Centers, Data Centers, station and network operators, working groups, pilot projects, and others highlighting status and important activities, changes and results that took place and were achieved during 2013. Note de contenu : 1- Executive Reports
The Development of the IGS in 2012 — The Governing Board’s Perspective / U. Hugentobler
Central Bureau / R. Neilan, S. Fisher, R. Khachikyan, J. Ceva, A. Craddock, N. Donnelly, D. Maggert, and G. Walia
2- Analysis Centers
Analysis Center Coordinator / J. Griffiths and K. Choi
Center for Orbit Determination In Europe / R. Dach, S. Schaer, S. Lutz, M. Meindl, H. Bock, E. Orliac, L. Prange, D. Thaller, L. Mervart, A. Jäggi, G. Beutler, E. Brockmann, D. Ineichen, A. Wiget, G. Weber, H. Habrich, J. Ihde, P. Steigenberger, U. Hugentobler
Natural Resources Canada / Y. Mireault, B. Donahue, R. Ghoddousi–Fard, P. Tétreault, F. Lahaye
European Space Operations Centre / T. A. Springer, L. Agrotis, J. Feltens, M. van Kints, N. Romero, F. Dilssner, C. Flohrer, W. Enderle, R. Zandbergen
GeoForschungsZentrum / G. Gendt, M. Ge, T. Nischan, M. Uhlemann, G. Beeskow, A. Brandt
Geodetic Observatory Pecný, No report submitted
Centre National d’Etudes Spatiales/Collecte Localisation Satellites / S. Loyer, F. Perosanz, H. Capdeville, A. Mezerette, F. Mercier, J.-C. Marty
Jet Propulsion Laboratory / S. Desai, W. Bertiger, B. Haines, D. Kuang, C. Selle, A. Sibois, A. Sibthorpe, and J. Weiss
Massachusetts Institute of Technology / T. A. Herring and R. W. King
National Geodetic Survey, No report submitted
Scripps Institution of Oceanography, No report submitted
United States Naval Observatory / C. Hackman, S. Byram, V. Slabinski, and J. Tracey
Wuhan University / C. Shi, M. Li, Q. Zhao, X. Lei, J. Liu
EUREF Permanent Network / C. Bruyninx, H. Habrich, A. Kenyeres, W. Söhne, G. Stangl, C. Völksen
SIRGAS / L. Sánchez
3- Data Centers
Infrastructure Committee / I. Romero
Crustal Dynamics Data Information System / C. Noll
Scripps Institution of Oceanography, No report submitted
Institut National de l’Information Géographique et Forestière / A. Duret, and B. Garayt
Korean Astronomy and Space Science Institute, No report submitted
4- Working Groups, Pilot Projects
Antenna Working Group / R. Schmid
Bias and Calibration Working Group / S. Schaer
Clock Products Working Group, No report submitted
Data Center Working Group / C. Noll
Ionosphere Working Group / A. Krankowski and R. Sieradzki
Multi–GNSS Working Group / O. Montenbruck
Space Vehicle Orbit Dynamics Working Group, No report submitted
Reference Frame Working Group / P. Rebischung, B. Garayt, X. Collilieux, Z. Altamimi
Real–Time Pilot Project / M. Caissy and L. Agrotis
RINEX Working Group / K. MacLeod, L. Agrotis, and R. Dach
Tide Gauge Benchmark Monitoring Project / T. Schöne, R. Bingley, Z. Deng, J. Griffiths, H. Habrich, A. Hunegnaw, M. Jia, M. King, M. Merrifield, G. Mitchum, R. Neilan, C. Noll, E. Prouteau, L. Sánchez, N. Teferle, D. Thaller, P. Tregoning, P. Woodworth, G. Wöppelmann
Troposphere Working Group / C. Hackman and S. ByramNuméro de notice : 17123 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Rapport Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=80359 Documents numériques
en open access
IGS technical report 2012Adobe Acrobat PDF
