Results 211 to 220 of about 16,964 (247)

Tree Biomass Sensitivity to Ozone Exposure: Insights From a Decade of Free-Air Experiments. [PDF]

Glob Chang Biol
Ghosh A, Viviano A, Paoletti E, Hoshika Y, Marra E, Manzini J, Garosi C, Siqueira MC, Moura BB.   +8 more
europepmc   +1 more source

Three-dimensional surface deformation field monitoring and influencing factors analysis in mountainous areas based on SBAS-INSAR technology (Tianjin, China). [PDF]

Sci Rep
Shang J, Wang M, Wang X, Yang M, Wu Y, Du W.   +5 more
europepmc   +1 more source

Tropospheric delays derived from Kalman-filtered VLBI observations

, 2015
Soja, B., Nilsson, T., Karbon, M., Balidakis, K., Lu, C., Anderson, J., Glaser, S., Liu, L., Mora-Diaz, J., Raposo-Pulido, V., Xu, M., Heinkelmann, R., Schuh, H.   +12 more
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Retrieving tropospheric delay using GPS single frequency receivers

, 2009
Deng, Z., Bender, M., Dick, G., Ge, M., Wickert, J.   +4 more
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Robust Modeling of GNSS Tropospheric Delay Dynamics

IEEE Transactions on Aerospace and Electronic Systems, 2021
In this article, we develop new stochastic tropospheric error models for positioning, fault detection, and integrity monitoring over time. We first perform time-domain and frequency-domain analyses of residual tropospheric delays observed over 12 months at multiple globally distributed locations. We then derive bounding error models for time-sequential
Elisa Gallon, Mathieu Joerger, Boris Pervan   +2 more
openaire   +1 more source

Improved Mapping of Tropospheric Delays

Journal of Atmospheric and Oceanic Technology, 2001
Abstract The authors compare several methods to map the a priori tropospheric delay of global positioning system (GPS) signals from the zenith direction to lower elevations. This is commonly achieved with so-called mapping functions. Dry mapping functions are applied to the hydrostatic delay; wet mapping functions are used to map the zenith wet delay ...
Christian Rocken, Sergey Sokolovskiy, James M. Johnson, Doug Hunt   +3 more
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Strategies for estimating tropospheric delays with GPS

2002 IEEE Position Location and Navigation Symposium (IEEE Cat. No.02CH37284), 2003
Until recently, the tropospheric zenith delay (TZD) was considered a nuisance parameter of the GPS observation model. However, as the requirements of the weather forecasting community have become better understood, the possible use of TZDs in weather forecasting has been recognized.
P. Collins, Y. Mireault, P. Heroux
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Refined Tropospheric Delay Models for CONT11

2015
For the period of CONT11, a continuous VLBI campaign which lasted from September 15 through September 29, 2011, new a coefficients for the Vienna Mapping Functions 1 (VMF1; Bohm et al., J Geophys Res 111:B02406, 2006) and an extended calculation strategy for horizontal gradients were applied.
D. Landskron, A. Hofmeister, J. Böhm
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4D tropospheric tomography using GPS estimated delays

IEEE 1999 International Geoscience and Remote Sensing Symposium. IGARSS'99 (Cat. No.99CH36293), 2003
Retrieval of 4D fields of the tropospheric distribution of water vapor using GPS measurements is an additional and attractive use of the Global Positioning System. Stochastic GPS tomography has successfully been used in ionospheric studies and the authors describe a similar approach for tropospheric studies.
A. Flores, G. Ruffini, A. Rius
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