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> Multi GNSS Processing on ship Awarded: ION GNSS+ 2014 Best Presentation Awards ION Best Presentation Award

Fujita, M., A. Wada, T. Iwabuchi, C. Rocken, 2014: Tropospheric Monitoring Over the Ocean using Shipborne GNSS Receiver, Proceedings of the ION GNSS+ 2014, in press.


> Heavy rainfall and PWV (RTnet PWV was used)

Suseno, D., and T. Yamada, 2013: The role of GPS precipitable water vapor and atmosphere stability index in the statistically-based rainfall estimation using MTSAT data. J. Hydrometeor. doi:10.1175/JHM-D-12-0128.1, in press.


> PPPAR with Fast Ambiguity Resolution

Mervart, L., C. Rocken, T. Iwabuchi, Z. Lukes, GPS Solutions Inc., USA; M. Kanzaki, Precise Point Positioning with Fast Ambiguity Resolution - Prerequisites, Algorithms and Performance, Proceedings of the ION GNSS 2013, in press.


> Multi GNSS (GPS, GLONASS, QZSS) ZTD, PWV, Gradient, Slant Delay

Iwabuchi, T., C. Rocken, A. Wada, M. Kanzaki, Benefit of Multi GNSS Processing with GPS, GLONASS, and QZSS for Tropospheric Monitoring, Proceedings of the ION GNSS 2013, in press.


> Network RTK with Cloud System

Lukes, Z., C. Rocken, L. Mervart, T. Iwabuchi, J. Barron, S. Cummins, M. Kanzaki, L. Mullen, Network RTK Computing in the Cloud and the Importance of Using GLONASS and QZSS, Proceedings of the ION GNSS 2013, in press.


> Approach to get local scale ("narrow beam-width") PWV

Sato, K., E. Realini, T. Tsuda, M. Oigawa, Y. Iwaki, Y. Shoji, and H. Seko, A High-Resolution, Precipitable Water Vapor Monitoring System Using a Dense Network of GNSS Receivers. J. Disaster Research, 8, 37-47, 2013.


> Earth's Free Oscillation caused by 2011 Tohoku earthquake

Mitsui, Y. & Heki, K., Observation of Earth's free oscillation by dense GPS array: After the 2011 Tohoku megathrust earthquake, Sci. Rep. 2, 931; DOI:10.1038/srep00931 (2012). Link


> Reliable magnitude determination with RTnet Real-time PPP

Wright, T. J., N. Houlie M. Hildyard, and T. Iwabuchi (2012), Real-time, reliable magnitudes for large earthquakes from 1 Hz GPS Precise Point Positioning: the 2011 Tohoku-Oki (Japan) earthquake, Geophys. Res. Lett., 39, L12302, doi:10.1029/2012GL051894, 2012. Link


> RTnet PWV Database for Climatology

Fujita, M., A. Wada, T. Iwabuchi and C. Rocken, GPS Precipitable Water Vapor Dataset for Climate Science. Proceedings of the ION GNSS 2012, 3454-3458.


> PWV Mapping with Slant Tropospheric Delay on the Ship and Buoy

Oishi, S., K. Tsuchiya, A. Wada, T. Iwabuchi, E. Nakakita, Advanced Usage of GPS Slant Delay for Detecting Water Vapor Variation Over the Osaka bay, Proceedings of the ION GNSS 2012.


> Reduction of Representativeness Errors in Local GNSS-PWV Products

Realini, E., T. Tsuda, K. Sato, M. Oigawa, Y. Iwaki, Analysis of the Temporal and Spatial Variability of the Wet Troposphere at a Local Scale by High-rate PPP Using a Dense GNSS Network, Proceedings of the ION GNSS 2012.


> APEX Real-time Satellite Orbit/Clock Product

Rocken, C., L. Mervart, J. Johnson, T. Iwabuchi, Z. Lukes, S. Cummins, T. Springer, P. Toor, Q. Zhang, M. Arciuch, Apex - A High Accuracy Service for Global Real-Time Precise Point Positioning with GPS and GLONASS, ION GNSS, 2011.19-23 Sep., Portland, OR, 1,825-1,838.


> Real-time Slant Trop. Dealay for Nowcasting of Severe Rainfall

Iwabuchi, T., C. Rocken, A. Wada, M. Kanzaki, True Real-time Slant Tropospheric Delay Monitoring System with Site Dependent Multipath Filtering, ION GNSS, 2011,19-23 Sep., Portland, OR, 579-587.


> Real-time GPS Buoy for Tsunami Monitoring

Kanzaki, M., Y. Matsushita, H. Kakimoto, C. Rocken, T. Iwabuchi, L. Mervart, J. Johnson, Z. Lukes, GNSS Positioning of Ocean Buoys in Japan for Disaster Prevention, ION GNSS, 2011, 19-23 Sep., Portland, OR, 717-723. .


> Processing of ship-based GPS observation, Comparison of retrieved GPS PWV with RAOB PWV

Fujita, M., F. Kimura, K. Yoneyama, and M. Yoshizaki, Verification of precipitable water vapor estimated from shipborne GPS measurements, GEOPHYSICAL RESEARCH LETTERS, VOL. 35, L13803, 5 PP., doi:10.1029/2008GL033764, 2008.


> PPP AR processing system Awarded: ION GNSS 2008 Best Presentation Awards ION Best Presentation Award

Mervart, L., Z. Lukes, C. Rocken, and T. Iwabuchi, Precise Point Positioning with Ambiguity Resolution In Real-Time, ION GNSS, 2008.


> L1 network processing system with dual frequency network

Iwabuchi, T., J. Johnson, S. Cummins, C. Rocken, Y. Iotake, M. Kanzaki, Deformation Monitoring with Single Frequency L1 Receivers, ION GNSS, 2008.


> PPP processing of ship and buoy GPS data

Rocken, C., T. Iwabuchi, Z. Lukes, L. Mervart, M. Fujita, M. Kanzaki Precise Positioning of Ships and Buoys in the Open Ocean - Results from a 3-Month Indian Ocean Cruise, and a tsunami Buoy off Japan's Coast ION GNSS, 2008.


> Click for Weather GPS-enhanced forecast system

Iwabuchi, T. and C. Rocken A New GPS-Enhanced High Resolution Weather Service ION GNSS, 2008.  



> True real-time estimation of ZTD and its potential application for nowcasting

Iwabuchi, T., C. Rocken, L. Mervart, M. Kanzaki Nowcasting and Weather Forecasting -Real-time Estimation of ZTD in GEONET, Japan- Location, 2007.


> True real-time estimation system of ZTD and PWV fro GEONET

Iwabuchi, T., C. Rocken, Z. Lukes, L. Mervart, J. Johnson, M. Kanzaki PPP and Network True Real-time 30 sec Estimations of ZTD in Dense and Giant Regional GPS Network and the Application of ZTD for Nowcasting of Heavy Rainfall ION GNSS 2006.


> Ionospheric delay correction for sigle frequency receiver

Rocken, C., Z. Lukes, L. Mervart, J. Johnson, T. Iwabuchi, M. Kanzaki Real-time Ionospheric and Atmospheric Corrections for Wide Area Single Frequency Carrier Phase Ambiguity Resolution ION GNSS 2006.


> RTK system in Japan

Kanzaki, M., Y. Iotake, H. Kakimoto, M. Hayashi, H. Yamada, H. Obata, S. Kano, K. Maeda, H. Obata, H. Yoshida, S. Takamatsu, T. Saeki, C. Rocken, J. Johnson, K. Key The New RTK System Which Applied Network Technology in Japan ION GNSS 2004.


> Quality validation of RTK system in Japan

Rocken, C., L. Mervart, Z. Lukes, J. Johnson, M. Kanzaki, H. Kakimoto, Y. Iotake Testing a New Network RTK Software System ION GNSS 2004.