Site survey and co-location

Slides:



Advertisements
Similar presentations
Meteorological Observatory Lindenberg – Richard Assmann Observatory The GCOS Reference Upper Air Network.
Advertisements

Dennis D. McCarthy Elements of Prediction. Why are we here? IERS Working Group on Predictions IERS Working Group on Predictions Definitive user requirements.
Atmospheric inversion of CO 2 sources and sinks Northern Hemisphere sink Jay S. Gregg.
04/22/02EGS G STABILITY OF GLOBAL GEODETIC RESULTS Prof. Thomas Herring Room ;
Armasuisse Swiss Federal Office of Topography swisstopo National Report of Switzerland E. Brockmann, D. Ineichen, M. Kistler, U. Marti, S. Schaer, A. Schlatter,
On the alternative approaches to ITRF formulation. A theoretical comparison. Department of Geodesy and Surveying Aristotle University of Thessaloniki Athanasios.
Effect of Surface Loading on Regional Reference Frame Realization Hans-Peter Plag Nevada Bureau of Mines and Geology and Seismological Laboratory University.
Adjust pressures to common height using lapse rate -5.6 K/km and surface temperature. Interpolate GSOS pressure (offset -1.5 hr) to the time of the.
2-3 November 2009NASA Sea Level Workshop1 The Terrestrial Reference Frame and its Impact on Sea Level Change Studies GPS VLBI John Ries Center for Space.
GEODETIC CONTROL SURVEYS
H. Fagard, A. Orsoni (IGN) 1 Journées DORIS - Toulouse, 2 et 3 mai 2000 CURRENT STATUS AND EVOLUTION PROSPECTS OF THE DORIS NETWORK History Current status.
ESTIMATION OF THE ELASTICITY EARTH PARAMETERS FROM THE SLR TECHNIQUE M.Rutkowska Space Research Centre, Polish Academy of Sciences M. Jagoda Technical.
Workshop, Miami, June 2008 ITRF2005 residuals and co-location tie issues Zuheir Altamimi IGN, France Some features of ITRF2005 residuals ITRF2005 vs IGS05.
Trimble SPS730 and SPS930 Universal Total Stations
GNSS Observations of Earth Orientation Jim Ray, NOAA/NGS 1. Polar motion observability using GNSS – concepts, complications, & error sources – subdaily.
FIG Young Surveyors 2013, Lisbon, 18 October 2013 Low-Cost Integrated GNSS/INS for Surface Variation Monitoring Miguel Cordeiro João Apolinário.
DORIS - DAYS Toulouse May 2-3, 2000 DORIS Doppler Orbitography and Radiopositioning Integrated by Satellite  Basic system concept  Main missions  Schedules.
Meteorological Observatory Lindenberg – Richard Assmann Observatory The GCOS Reference Upper Air Network.
SRI Seminar 2005 Time series of GPS stations For reference, monitoring and geophysics Günter Stangl Federal Office of Metrology and Surveying.
Regional and Global Measurements: The Reference Frame for Understanding Observations Geoff Blewitt University of Nevada, Reno, USA Zuheir Altamimi IGN,
Presented by: Leila Hernandez Dennis Manglicmot GMAT 9205 Fundamentals of Geo-positioning.
Space Geodesy (1/3) Geodesy provides a foundation for all Earth observations Space geodesy is the use of precise measurements between space objects (e.g.,
AUSTRALIAN LOCAL TIE SURVEYS. 27 May 2004 PLAN OF PRESENTATION Stromlo Network Design Monument Design Calibration Targets Instrumentation and Methodology.
1 AOGS 2012, Singapore, Aug 13-17, 2012 Surveying co-located GNSS/VLBI/SLR Stations In China Xiuqiang Gong, Yunzhong Shen, Junping Chen, Bin Wu Shanghai.
Determination of seasonal geocenter variations from DORIS, GPS and SLR data.
SPACE GEODESY NETWORK & ITRF Z Minchul LEE 1.
Faculty of Applied Engineering and Urban Planning Civil Engineering Department Introduction to Geodesy and Geomatics Position, Positioning Modes, and the.
1 Tropospheric Signal Delay Corrections Seth I. Gutman NOAA Earth System Research Laboratory Boulder, CO USA NOAA/LSU Workshop on Benefits to the.
The ICRF, ITRF and VLBA Chopo Ma NASA’s Goddard Spaceflight Center.
Assessment of Reference Frame Stability trough offset detection in GPS coordinate time series Dragan Blagojević 1), Goran Todorović 2), Violeta Vasilić.
VARIABILITY OF TOTAL ELECTRON CONTENT AT EUROPEAN LATITUDES A. Krankowski(1), L. W. Baran(1), W. Kosek (2), I. I. Shagimuratov(3), M. Kalarus (2) (1) Institute.
S/X receiver for Parkes geodetic VLBI program 29 October 2012 ATNF, Sydney 29 October 2012 Оleg Titov (Geoscience Australia)
Application of a North America reference frame to the Pacific Northwest Geodetic Array (PANGA) M M Miller, V M Santillan, Geodesy Laboratory, Central Washington.
Earth Surface and Interior Focus Area Space Geodetic Networks for Maintaining the Reference Frame Geodesy's Critical Contributions to NASA (Earth Science)
V0 analytical selection Marian Ivanov, Alexander Kalweit.
NATO Workshop Veszprem 2004 Recent Monitoring of Crustal Movements in the Eastern Mediterranean The Usage of GPS Measurements G. Stangl, Federal Office.
A new method for first-principles calibration
A proposal for a consistent model of air pressure loading as part of the International Terrestrial Reference System (ITRS) Conventions Plag, H.-P. (1),
Chalmers University of Technology Site-Dependent Electromagnetic Effects in High-Accuracy Applications of GNSS Jan Johansson and Tong Ning Chalmers University.
12/12/01Fall AGU Vertical Reference Frames for Sea Level Monitoring Thomas Herring Department of Earth, Atmosphere and Planetary Sciences
Aug 6, 2002APSG Irkutsk Contemporary Horizontal and Vertical Deformation of the Tien Shan Thomas Herring, Bradford H. Hager, Brendan Meade, Massachusetts.
Armasuisse Swiss Federal Office of Topography swisstopo Determination of Tectonic Movements in the Swiss Alps using GNSS and Levelling E. Brockmann, D.
IGARSS 2011, Vancuver, Canada July 28, of 14 Chalmers University of Technology Monitoring Long Term Variability in the Atmospheric Water Vapor Content.
NAPEOS: The ESA/ESOC Tool for Space Geodesy
Importance of SLR in the Determination of the ITRF Zuheir Altamimi IGN, France Geoscience Australia, Canberra, August 29, 2005 SLR Strength: its contribution.
EGU G6 Vienna 2006 The CERGOP2 database after the project EU project CERGOP2/Environment Work Package 1 P. Pesec, C. Haslinger, Space Research Institute.
B. S. Schmeing 23-September-2009 Automated measurement of local ties and antenna parameters Benno Schmeing University of Bonn, IGG Benno Schmeing University.
Ggim.un.org Positioning geospatial information to address global challenges Global and National Geodetic Reference Frames: how they are connected and why.
Investigations on (radial) offsets between different Swarm orbit solutions 8 September th Swarm Data Quality Workshop, IPGP, Paris Heike Peter (PosiTim),
IERS Combination WG and CPP Meeting, April 27, 2005, TU of Vienna, Austria Strategies for Weekly Routine Generation of Combined IERS Products Markus Rothacher.
Thomas Herring, IERS ACC, MIT
Elevation angle and phase residuals for single satellite
Geodesy & Crustal Deformation
Contemporary Horizontal and Vertical Deformation of the Tien Shan
Reference Frame Representations: The ITRF from the user perspective
SPACE GEODESY ACTIVITIES AT INSTITUTO GEOGRÁFICO NACIONAL (IGN), SPAIN
Analysis Center + Reference Frame Working Group
Continued Monitoring to calculate the local tie GNSS-VLBI.
Update on Advancing Development of the ROLO Lunar Calibration System
Synopsis “The Matrix”: polarisation and pulsar timing
Presentation of Public ESA Multi-GNSS Products
Elevation angle and phase residuals for single satellite
Characterization and Impact of DORIS scale variations
IDS workshop, Venice, Italy, September 2012
WHY DOES THE IGS CARE ABOUT EOPs?
Proposal for long station names in SINEX format Paul Rebischung Unified Analysis Workshop, Paris, July 2017 Good morning. So I’m going to.
Survey Networks Theory, Design and Testing
DIGITAL PHOTOGRAMMETRY
Progress in antenna calibrations — Recommendations
Online Positioning User Service Review and new developments
Presentation transcript:

Site survey and co-location Sten Bergstrand July 2017 SAFETY AND TRANSPORT MEASUREMENT SCIENCE AND TECHNOLOGY

Introduction Local ties are geometric vectors measured between reference points of different stations, including the full covariance information in both temporal and spatial domain Definitions are important to convey information Following Paris workshop 2013 http://iersworkshop2013.ign.fr/ Resolution between services available at IERS URL: https://www.iers.org/SharedDocs/Publikationen/EN/IERS/WorkingGroups/SiteSu rvey/Bergstrand_etal_REFAG2014_TieResolution.pdf (not REFAG2014 proceedings…) Rotation of surveying results into ITRF via GNSS currently destroys any survey…

Every station has one geometric reference point Stations have DOMES numbers Reference points are geometrically determined points on the stations The definitions of these points are determined by the services The term ”reference point” needs to be used exclusively for this geometrically determined point

One geometric reference point Example of internet search result for ”gnss antenna reference point” – not recommended for clarity… Other relations, e.g. - PCO - PCV - pointing - internal geometries - time delays - systematic errors - deformation - etc… are part of the service obligation (with aid from surveyors, where applicable)

Every site should be represented by a physical marker. Invariant to station changes Permanent Preferably attached to bedrock

Exemplified by DORIS antenna Courtesy: Saunier et al.

VLBI Automatic schedule-generated terrestrial monitoring system developed, applied e.g. at CONT14 (Lösler et al.) GNSS antennas mounted on telescopes

How to incorporate local ties and uncertainties in next ITRF? Plans, gateways, commitments, timings? Recommendations are already available since many years. Surveying techniques should generally perform better than current discrepancies between analytic site solutions Quality or quantity? Focus on any separate technique? More surveys? If so: who and how?

General Ishikawa diagram? Reference point Ref. point to rec. unit Local network Geometry Deformation n points GNSS Temperature Geometry Accessibility Arcs Constraints Size Cables Rec.unit Definition Ground stability n measurements Elevation dependence Orientation of vertical Points Variation Frequency Observations Cut-offs Operator Play Repeatability Solar radiation Traceability Interval Temperature Pressure Temperature Length Longevity Stability Met.sensor height Monument Temporal evolution Instrument calibration

Thankyou – Please provide input! Sten Bergstrand sten.bergstrand@ri.se SAFETY AND TRANSPORT MEASUREMENT SCIENCE AND TECHNOLOGY