Results 71 to 80 of about 2,145,064 (260)

Use of Tropospheric Delay in GNSS-Based Climate Monitoring—A Review

Remote Sensing
The troposphere is a key component of the Earth’s climate system, modulating weather patterns and global temperatures through intricate interactions between water vapor, atmospheric pressure, and temperature.
Aleksandra Maciejewska
semanticscholar   +1 more source

Storyline description of Southern Hemisphere midlatitude circulation and precipitation response to greenhouse gas forcing [PDF]

, 2020
As evidence of climate change strengthens, knowledge of its regional implications becomes an urgent need for decision making. Current understanding of regional precipitation changes is substantially limited by our understanding of the atmospheric ...
Hodges, K. I., Lee, R. W., Mindlin, J., Osman, M., Shepherd, T. G., Vera, C., Zappa, G.   +6 more
core   +1 more source

High Precision Astrometric Millimeter VLBI Using a New Method for Atmospheric Calibration

, 2011
We describe a new method which achieves high precision Very Long Baseline Interferometry (VLBI) astrometry in observations at millimeter wavelengths.
Alef, Asaki, Asaki, Beasley, Dodson, Dodson, Falcke, Fomalont, Honma, Honma, Jung, Lobanov, M. Rioja, Porcas, Porcas, Porcas, Porcas, R. Dodson, Reid, Rioja, Rioja, Rioja, Rioja, Rioja, Rioja, Thompson, Ulvestad, Walker   +27 more
core   +1 more source

Tropospheric delays in ground-based GNSS Multipath Reflectometry – experimental evidence from coastal sites [PDF]

, 2017
Recent studies have demonstrated the utility of ground based GNSS Multipath Reflectometry (GNSS-MR) for sea level studies. Typical root-mean-square (RMS) differences of GNSS-MR derived sea level time series with respect to nearby tide gauges are on the ...
Nievinski, F.G., Williams, S.D.P.
core   +1 more source

Millimeter slope ratcheting from multitemporal SAR interferometry with a correction of coastal tropospheric delay: A case study in Hong Kong

Remote Sensing of Environment, 2022
Tropospheric delays (TDs) limit the accurate detection of slow slope motion using interferometric synthetic aperture radar (InSAR), especially in subtropical coastal regions prone to frequent changes in humidity.
Guoqiang Shi, Bo Huang, A. Leung, C. W. Ng, Zhilu Wu, Hui Lin   +5 more
semanticscholar   +1 more source

Windows of opportunity in subseasonal weather regime forecasting: A statistical–dynamical approach

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study explores how the atmospheric state at initialisation creates windows of opportunity for improving week 3 forecasts of weather regime activity. Greenland blocking activity increases following Madden–Julian Oscillation phases 7, 8, and 1 and weak stratospheric polar vortex states, revealing patterns exploitable by statistical models.
Fabian Mockert, Christian M. Grams, Sebastian Lerch, Julian Quinting   +3 more
wiley   +1 more source

Using a causal effect network approach to quantify the impact of ENSO teleconnections on summer monsoon precipitation over the Himalayas and key regional circulations

Quarterly Journal of the Royal Meteorological Society, EarlyView.
We quantified the causal effect (CE) of linkages between four monthly climate indices ENSO, SMHP, RWC, and MHC for 1940–2022 with a time lag of one month. The results show CE values from (1) ENSO to SMHP of −0.33$$ -0.33 $$ to −0.44$$ -0.44 $$ (i.e., a one standard deviation (SD) increase in ENSO causes a decrease in SMHP of −0.33$$ -0.33 $$ to −0.44$$
Grzegorz Muszynski, Andrew Orr, Indrani Roy, Giorgia Di Capua, Hamish D. Pritchard, J. Scott Hosking   +5 more
wiley   +1 more source

Effect of GPS tropospheric delay Neill mapping function simplification [PDF]

, 2009
The mathematical modeling on the mapping function models should be revised and also simplified to improve the calculation of the GPS tropospheric delay.
Abu Bakar, Mohd Rizam, Matori, Abd. Nasir, Md Noorani, Mohd Salmi, Mohamed Shariff, Abdul Rashid, Mohamed, Azhari, Sakidin, Hamzah   +5 more
core  

Astrometry and geodesy with radio interferometry: experiments, models, results

, 1997
Summarizes current status of radio interferometry at radio frequencies between Earth-based receivers, for astrometric and geodetic applications. Emphasizes theoretical models of VLBI observables that are required to extract results at the present ...
Aoki, S., Argus, D. F., Argus, D. F., Argus, D. F., Baader, H.-R., Bare, C., Bartel, N., Bassiri, S., Batty, M. J., Bolton, J. G., Bowring, B. R., Brosche, P., Brosche, P., Brosche, P., Brosche, P., Broten, N. W., Burke, B. F., Carr, T. D., Carter, W. E., Cartwright, D. E., Chao, B. F., Chao, B. F., Charlot, P., Charlot, P., Charlot, P., Chen, G., Christopher S. Jacobs, Clark, T. A., Clark, T. A., Cohen, M. H., Cohen, M. H., Davidson, J. M., Davis, J. L., DeMets, C., DeMets, C., Dreyer, J. L. E., Edge, D. O., Einstein, A., Einstein, A., Elgered, G., Fairhead, L., Fallon, F. W., Fang, M., Fey, A. L., Fich, M., Folkner, W. M., Freedman, A. P., Fu, L. L., Fukushima, T., Fukushima, T., Gardner, C. S., Gardner, C. S., Gaspar, P., Gilbert, F., Gipson, J. M., Gross, R. S., Gwinn, C. R., Gwinn, C. R., Haas, R., Hartmann, T., Hartmann, T., Hartmann, T., Hellings, R. W., Henstock, D. R., Herring, T. A., Herring, T. A., Herring, T. A., Herring, T. A., Hinteregger, H. F., Hjellming, R. M., Ho, C. M., Hosokawa, M., Hubble, E. P., Jacobs, C. S., Jansky, K. G., Jansky, K. G., John L. Fanselow, Johnston, K. J., Kellermann, K. I., Kerr, F. J., Kinoshita, H., Kinoshita, H., Kogut, A., Kovalevsky, J., Le Provost, C., Lebach, D. E., Lestrade, J.-F., Lestrade, J.-F., Lieske, J. H., Linfield, R. P., Ma, C., Ma, C., MacDoran, P. F., MacMillan, D. S., MacMillan, D. S., MacMillan, D. S., Marcaide, J. M., Marini, J. W., Mathews, P. M., Mathews, P. M., Mathews, P. M., May, J., Minster, J. B., Mitrovica, J. X., Moran, J. M., Morgan, P. J., Moyer, T. D., Napier, P. J., Naudet, C. J., Niell, A. E., Ojars J. Sovers, Ong, K. M., Pagiatakis, S. D., Patnaik, A., Peltier, W. R., Piner, B. G., Polatidis, A. G., Pyne, T., Rabbel, W., Ray, J. R., Ray, J. R., Ray, R. D., Reber, G., Reber, G., Reid, M. J., Rius, A., Robertson, D. S., Robertson, D. S., Robertson, D. S., Robertson, D. S., Robertson, D. S., Rogers, A. E. E., Rogers, A. E. E., Rosen, R. D., Scherneck, H. G., Schmidt, M., Seidelmann, P. K., Seiler, U., Shahid-Saless, B., Shapiro, I. I., Shapiro, I. I., Smith, E. K., Sonett, C. P., Souchay, J., Sovers, O. J., Sovers, O. J., Sovers, O. J., Standish, E. M., Taylor, G. B., Teitelbaum, L. P., Thakkar, D. D., Thayer, G. D., Treuhaft, R. N., Treuhaft, R. N., Tushingham, A. M., van Dam, T. M., van Dam, T. M., van Vleck, J. H., Vigue, Y., Wade, C. M., Wade, C. M., Wahr, J. M., Wahr, J. M., Walter, H. G., Walter, H. G., Ward, S. N., Watkins, M. M., Webb, F. H., Williams, J. G., Williams, J. G., Williams, J. G., Wilson, B. D., Yahil, A., Yoder, C. F., Zebker, H. A., Zhu, S. Y., Zhu, S. Y.   +176 more
core   +2 more sources

A Tropospheric Zenith Delay Forecasting Model Based on a Long Short-Term Memory Neural Network and Its Impact on Precise Point Positioning

Remote Sensing, 2022
Global navigation satellite system (GNSS) signals are affected by refraction when traveling through the troposphere, which result in tropospheric delay. Generally, the tropospheric delay is estimated as an unknown parameter in GNSS data processing.
Huan Zhang, Yibin Yao, Mingxian Hu, Chaoqian Xu, Xiaoning Su, Defu Che, Wenjie Peng   +6 more
doaj   +1 more source