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NCAR Summer Colloquium
"Atmospheric Remote Sensing Using the Global Positioning System (GPS)"
Field Trip Participants: Japan and Taiwan, July 3-14, 2004
Last Updated: June 10th, 2004
Lecturers Participants
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Richard Anthes
Richard Anthes is the president of the University Corporation for Atmospheric Research (UCAR). He is a highly regarded atmospheric scientist, author, educator and administrator who has contributed considerable research in the atmospheric sciences. Dr. Anthes has published over 100 peer-reviewed articles and books and participated on or chaired over 40 different U.S. national committees. He has also received numerous awards for his sustained contributions to the atmospheric sciences. In October 2003 he was awarded the Friendship Award by the Chinese government, the most prestigious award given to foreigners, for his contributions over the years to atmospheric science and weather forecasting in China.
Dr. Anthes has made many research contributions in the areas of tropical cyclones and mesoscale meteorology. He developed the first successful three-dimensional model of the tropical cyclone and was the father of one of the world's most widely used mesoscale models, the Penn State-NCAR mesoscale model, now in its fifth generation (MM5). In recent years he has become interested in the radio occultation technique for sounding Earth's atmosphere and was a key player in the highly successful proof-of-concept GPS/MET experiment.
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Lidia Cucurull
Lidia Cucurull is a UCAR Project Scientist I at the NOAA Joint Center for Satellite Data Assimilation (JCSDA) in Washington DC.
She received her B. Sc. in Physics in 1994 from the Universitat Autonoma de Barcelona (UAB), Spain and obtained a M.S. degree in Theoretical Physics in 1995. During 1994-1996 she worked as an assistant teacher at the Theoretical Physics Group in the Physics Department of the UAB. She started a Ph.D. in Atmospheric Sciences in 1997 at the Earth Observation Group of the Institute of Space Studies of Catalonia (IEEC) and defended her thesis in June 2001 at the Universitat de Barcelona (UB). The topic of her Ph.D. research work was the comparison and variational assimilation of ground-based GPS satellite observations in Numerical Weather Prediction models, funded by the European Community. In January 2002, she moved to the United States as a post-doc at NCAR. She worked on the development of a data-assimilation capability that uses GPS ground receiver observations in the MM5 real time four-dimensional data assimilation system in the Research Applications Program.
Lidia joined the UCAR COSMIC Project Office in March 2003. Lidia.s primary responsibility is to develop, test, and optimize procedures to ingest atmospheric profiles retrieved from GPS radio occultation data into the NOAA/JCSDA data assimilation system for operational forecasts.
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John Dykema
John Dykema received his Ph.D. in applied physics from Harvard University in 2002. His disseration research included designing and evaluating a prototype interferometer for climate monitoring. Aspects of this design were demonstrated by the INTerferometer for Emission and Solar Absorption (INTESA), which has flown on field campaigns in California, Virginia, Texas and Costa Rica since 1998. Since 2001, he has been part of a group at Harvard developing techniques for studying climate dynamics and testing climate models using infrared radiance and GPS refractivities. He received an M.Sc. in experimental condensed matter physics from Oxford University and an A.B. in physics from UC Berkeley.
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George Hajj
Ph.D. in Physics, Rice University (1988), Dr. Hajj joined JPL in 1988 to work on various remote sensing projects involving the GPS. He is currently a principal member of technical staff and an adjunct research professor in the mathematics department at the University of Southern California. He has led and co-led several projects that include the use of GPS occultation for atmospheric and ionospheric sensing. He authored and co-authored over 75 publications in refereed journals, conference proceedings and JPL and NASA documents related to GPS remote sensing.
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Manuel Hernandez-Pajares
Manuel Hernandez-Pajares was born on November 12, 1962, in Valverde de Leganes,
Badajoz (Spain). He obtained his first university degree in Physics in 1985,
at the University of Barcelona, Spain. And he got his Ph.D. in Astronomy in
the same university, in 1990. After this, he worked in the area of Global
Positioning System (GPS) applications in the Cartographic Institute of
Catalonia in Barcelona.
Since 1993, he is an Associate Professor at the Technical University of
Catalonia (UPC) working firstly on applications of Neural Networks to
Astronomy, and in new algorithms for precise atmospheric sounding and
satellite navigation using GPS and GALILEO data. Such research
activity has been developed in the research group of Astronomy and Geomatics
(gAGE/UPC), producing several achievements in collaboration with his
gAGE/UPC colleagues Dr. Miguel Juan and Dr. Jaume Sanz: development of
tomographic models optimized for electron content estimation from ground and
space based GPS data (1996), development of a Wide Area RTK algorithm
for GPS (1999, in collaboration with Dr. Oscar Colombo from GSFC/NASA), and
more recently the invention of instantaneous Wide Area RTK algorithms for
three-frequency systems (2002, under ESA contract and international patent).
Presently, he has been the Principal Investigator of more than 10 national and
international scientific projects, including projects with ESA and NASA.
He has published more than 30 papers in peer reviewed journals, and about
100 papers in meeting proceedings. He is co-authoring two patents and one
GPS processing book. He is reviewer of several international journals in
the field and he has been invited to participate and chair in several
international meetings.
He is the chairman and product coordinator of the International GPS
Service Ionosphere (IGS) WG since 2002 (and associate member since 1998).
He is member of the International Astronomical Union (IAU, since 1991),
the European Geophysical Society (EGS, since 1995), the American Geophysical
Union (AGU, since 1997) and the Institute of Navigation (ION, since 1999).
He belongs to several international working groups, related to the
International GPS Service, the European Space Agency, and with the
International Association of Geodesy and Geophysics.
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Ted Iwabuchi
Hi, my name is Ted Iwabuchi. I am a visiting scientific researcher of the COSMIC program under the support from JSPS (Japan Society for the Promotion of Science).
I received my Ph.D. from the graduate university for advanced studies (National Astronomical Observatory in Japan) in 1999 and I am currently working on the JSPS-funded research theme with scientists of the ground based GPS research group in the COSMIC program.
Japanese GEONET, (GPS Earth Observation Network) which consists of 1,200 GPS permanent stations is one of the largest GPS network of the world. The network is suffering from the scattering of the estimated coordinate, especially in summer wet monsoon season. We believe it comes from water vapor distributions and variations which cannot be explained by climatological (static) model used in the GPS analysis. So, I am now developing the GEONET analysis system by using 'dynamic' atmospheric model based on the WRF model simulation. I hope all of the geophysicists and GPS users will be happy with the benefit from the system. I also have interest in the GEONET data assimilation into the high-resolution models because the orographic effect is one of the major factors which control mesoscale phenomena in Japan.
I am looking forward to meeting you and to introducing GEONET and its meteorological application. Also, I hope to introduce Japanese interesting culture in the field trip.
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Bill Kuo
Bill Kuo is the Director of the COSMIC (Constellation Observing Systems for Meteorology, Ionosphere, and Climate) Project at UCAR. He is a senior scientist and the head of the Mesoscale Prediction Group of the Mesoscale and Microscale Meteorology Division at NCAR. His group is responsible for the development and scientific applications of the MM5 and WRF weather prediction models. Dr. Kuo has published over 90 peer-reviewed papers, and supervised over 15 Ph.D. students. COSMIC is a joint US-Taiwan mission with a goal to launch six satellites at the end of 2005, which will collect ~2,500 GPS radio occultation soundings per day. The COSMIC data will be available in near real time to support operational numerical weather prediction, climate analysis and space ionospheric research. Dr. Kuo received his Ph.D. in 1983 from the Pennsylvania State University. His research interests include: Mei-yu fronts, hurricanes, extratropical cyclones, mesoscale convective systems, mesoscale numerical weather prediction, and assimilation of remote sensing observations. Dr. Kuo is also the Honorary Director for the Institute of Urban Meteorology of the Chinese Meteorological Administration.
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Hui Liu
Hui Liu is a Project Scientist with the Data Assimilation Initiative at NCAR. His research interests include use of radio-occultation observation in climate modeling and numerical weather prediction using ensemble filter assimilation algorithm. |
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Tony Mannucci
Dr. Anthony J. Mannucci is supervisor of the Ionospheric and Atmospheric Remote Sensing Group at Caltech's Jet Propulsion Laboratory, where he has been since 1989. Dr. Mannucci is an expert in the application of GPS technology to scientific investigations of the ionosphere and atmosphere, and has developed ionospheric calibration systems for deep space tracking and Earth science applications. He has pioneered the development of widely-used data analysis methods for calibrating GPS ionospheric measurements and for mapping ionospheric total electron content on regional and global scales, and is lead author of a review article concerning the use of GPS receivers for ionospheric measurements published in 1999. Serving civilian aircraft applications of GPS, Dr. Mannucci is a member of the Integrity Performance Panel for the Wide Area Augmentation differential GPS system fielded by the Federal Aviation Administration, and is a member of the international Ionospheric Working Group for Satellite-Based Augmentation Systems (SBAS). He obtained a Bachelor of Arts degree in Physics from Oberlin College in 1979 and a Ph.D. in Physics from U.C. Berkeley in 1989.
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William Randel
Bill Randel is a Senior Scientist in the Atmospheric
Chemistry Division at NCAR, where he has been since 1985.
His research interests include dynamic variability of the
stratosphere and stratosphere-troposphere coupling, and
understanding the transport of trace constituents in the atmosphere
using satellite observations. He is a member of several
Science Teams for NASA satellite experiments (UARS, SAGE,
AIRS and HIRDLS), and has led several community ozone
assessment activities (for UNEP/WMO and SPARC). He is also
a current member of the National Research Council Board on
Atmospheric Sciences and Climate (BASC).
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Christian Rocken
Christan Rocken is chief scientist for UCAR's COSMIC (Constellation Observing
System for Meteorology Ionsophere and Climate) program and directs the
ground based GPS meteorology research activities at UCAR. He is one of the
pioneers that first applied high accuracy GPS data to atmospheric sensing
from the ground, and was a co-investigator of the GPS/MET radio occultation
proof-of-concept mission. He conducted his undergraduate studies
at the University of Cologne , Germany and came to the US as a Fulbright scholar
to later receive his PhD in geophysics from the University of Colorado. Today Dr. Rocken
is working on many aspects of the COSMIC mission with emphasis on
the real-time COSMIC data analysis system. He conducts
research on new ground based application of GPS atmospheric sensing, and serves
as President of GPS Solutions, a small consulting firm in Boulder, Colorado. |
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Stig Syndergaard
Dr. Syndergaard has about nine years of experience working with the
radio occultation technique. First at the Danish Meteorological Institute
(DMI) (1995-1999), then at the Institute of Atmospheric Physics (IAP),
University of Arizona (UA), Tucson (2000-2004), and now at the UCAR COSMIC
Project Office in Boulder, Colorado. While at DMI, Dr. Syndergaard
developed radio occultation simulation and retrieval software, and he
was responsible for the development of the retrieval algorithms for
the Oersted-GPS occultation data analysis in 1999. At IAP/UA, he
continued his research on the radio occultation technique
and also became involved in the development of the microwave cross-link
occultation technique for estimation of atmospheric water vapor and ozone
via absorption. Dr. Syndergaard also has an interest in radio occultation
data assimilation issues and ionospheric tomography. He is now
responsible for developing the software for operational near-real time
and post-processing analysis of the ionospheric data products from
the COSMIC constellation.
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Lung-Chih Tsai
Center for Space and Remote Sensing Research
National Central University |
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Randolph Ware
Dr. Randolph Ware serves as President of Radiometrics Cor-poration. He also serves as Project Scientist at UCAR where he is Principal Investigator of SuomiNet, a university-based GPS network for real-time atmospheric sensing. He holds a PhD in Nuclear Physics from the University of Colorado. He has published numerous scientific articles on GPS applications and microwave radiometry and holds patents on these topics.
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Jens Wickert
Jens Wickert, born in 1963, is senior scientist at the GeoForschungsZentrum Potsdam (GFZ), where he is responsible for the GPS based atmospheric sounding. He graduated in solid state physics from the Technical University Dresden and obtained his doctor.s degree from the Karl-Franzens-University Graz. He worked a number of years in atmospheric research for the German Weather Service, Alfred Wegener Institute for Polar and Marine Research and the German Aerospace Center. His research interest is focused on the improvement of the GPS radio occultation technique and on the application of the GPS data for numerical weather forecast and atmospheric research. He has published numerous scientific articles on the GPS radio occultation technique and is involved in various national and international research projects related to GPS atmosphere sounding techniques and their application in atmospheric research. He is Principal Investigator of the GPS atmosphere sounding experiment of CHAMP.
More information can be found here.Dr. Wickert's Curriculum Vitae
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Larry E. Young
Dr. Larry E. Young has developed radiometric technology at Caltech's Jet Propulsion Laboratory since 1978, currently leading a group developing high precision GPS receivers. Specific areas of group research include digital GPS receivers, multipath mitigation, sub-nanosecond clock synchronization, and sub-cm formation flying. Ongoing work includes developing GPS flight receivers to enable new science capabilities, such as ionospheric and neutral atmosphere occultations, and surface reflections of GPS signals. Larry received a B.A. in Physics from Johns Hopkins in 1970, and a Ph.D. in Nuclear Physics from SUNY at Stony Brook in 1975.
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Thomas P. Yunck
Tom Yunck has been with the Jet Propulsion Laboratory since 1978, where he is currently Deputy Manager of the Exploration Systems Autonomy Section. At JPL, Dr. Yunck has pursued the development of precise techniques for spacecraft tracking and their application to science. For more than 15 years he has overseen development of new methods for em-ploying the Global Positioning System (GPS) in Earth science. Applications have included the use of GPS for the precise orbit determination of remote sensing satellites and for mil-limeter-level global geodesy. His more recent work has focused on application of space-borne GPS for atmospheric limb sounding to recover precise profiles of atmospheric tem-perature, moisture, electron density, and other quantities. Dr. Yunck is Principal Investigator for the Global Environmental and Earth Science Information System (GENESIS), a new data information system for atmospheric science, and for the National Geodetic Observatory (NGO), which seeks to unify the practice of global space geodesy. Tom holds a B.S. in electrical engineering from Princeton University and a Ph.D. in systems and information science from Yale.
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