Space Research Institute Group: Applications of GNSS Ionosphere-Atmosphere-Hydrosphere- Pedosphere-Lithosphere G. Stangl (1) , C. Aichhorn, W. Hausleitner, S. Krauss, J. Weingrill (2) (1) Federal Office of Metrology and Surveying (2) Space Research Institute, Austrian Academy of Sciences
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Space Research Institute Group: Applications of GNSS Ionosphere-Atmosphere-Hydrosphere- Pedosphere-Lithosphere G. Stangl (1), C. Aichhorn, W. Hausleitner,
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Products: Coordinates, covariance matrices, troposphere zenith delays, troposphere gradients, basis for realization of the Austrian and European reference frame, weather forecasting, time series, station velocities
Thermospheric Neutral Density during Solar Event: Density ratio of 3-4 of MSIS wrt.
CHAMP
Temperature increase up to 4000 K with new model
Regional TEC Maps
Near Real Time monitoring prototype
Detection of 3-10 cm outliers
Troposphere zenith delays and precipitation phase lag
Horizontal seasonal variations (atmosphere?)
LEO SLR Data Processing GPS orbit validation: <2 cm
Gravity field assessment methods
SWOT AnalysisStrengths Weaknesses
GNSS analysis since 1980, independent of occasional diploma and PhD theses
Leading contributions to international analysis and reference standards
Global services already installed and acknowledged
Multidisciplinary approach
Niche products (Transponder, kHz Laser)
Diminishing manpower since 2006, impact in international projects becomes smaller
Few modelling experience because of software and manpower missing, no students to assist research by diploma theses and PhDs
Old technology of sensors
High risk of failure with new models and products
Opportunities ThreatsExperience needed globally for precise positioning (references, standards, models)
Permanent and quick analysis improves reliability of products and helps to find new features ->real time earth monitoring
Regional networking within geosciences needed, combination of geosciences requested
To meet the future challenge, the ideal would be at least 1 person for orbit models, 2 persons for monitoring service, 1 person for earth models, 1 person for ionosphere models (and all are flexible)
Experience and competition grow by groups investing more into research
-> “poor little Austria” will be not needed anymore, experience gets lost without permanent service and “everyday analysis”
Future geodesy will end up as numerical mathematics for geosciences ->geometric part (references) will be reduced
Future Plans to 2013
2008 2009 2010 2011 2012 2013
GOCE Prel. Orbit Val. GOCE Grav. Field Validation
Gravity Field from SLR
Global Calibration Network Transponder/Altimeter
LEO Tailored Models
Regional modeling troposphere + ionosphere for positioning and natural disaster research