Download or read book Studies of Atmospheric Water Vapor Using the Global Positioning System written by T. Ragne Emardson and published by . This book was released on 1998 with total page 29 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Estimation of Atmospheric Precipitable Water Using the Global Positioning System written by David A. Garay and published by . This book was released on 2002-03-01 with total page 119 pages. Available in PDF, EPUB and Kindle. Book excerpt: This research focuses on using the Global Positioning System (GPS) for atmospheric precipitable water (PW) estimation. Water vapor, measured in terms of PW, plays a crucial role in atmospheric processes and short-term weather forecasting. Traditional methodologies for measuring atmospheric water vapor distributions have known inadequacies, resulting in the motivation to gain good water vapor characterization via GPS. The ability to accurately forecast cloud formation and other weather phenomenon is critical, especially in the case of military operations. Using a network of GPS receivers, it is possible to estimate precipitable water throughout the network region with better accuracy than traditional methods and on a more consistent near real-time basis. First, an investigation into the effects of introducing less accurate, near real-time GPS ephemerides was accomplished. Secondly, the network geometry and data availability were degraded to simulate potential military operational constraints. Finally, several interpolation methods were applied to quantify the ability to estimate the water vapor distribution over the entire network region with limited data availability and network geometry constraints. Results showed that International GPS Service (IGS) ultra-rapid orbits introduced minimal PW estimation error (Æ1-2mm) while maintaining near real-time capability. The degraded perimeter network also introduced minimal PW estimation error (Æ1-2 mm) at the included stations, indicating potential application in constrained data environments. However, the interpolation investigation showed an overall inability to determine PW distribution over the entire network region.
Download or read book Sensing Atmospheric Water Vapor Using the Global Positioning System written by JingPing Duan and published by . This book was released on 1994 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Atmospheric Water Vapor written by Adarsh Deepak and published by Elsevier. This book was released on 2013-09-25 with total page 712 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atmospheric Water Vapor contains the technical proceedings of the International Workshop on Atmospheric Water Vapor held in Vail, Colorado, on September 11-13, 1979. The papers assess the state-of-the-art in measurement, modeling, and application of atmospheric water vapor properties and highlight important problems that require further effort in order to better understand the atmosphere itself as well as the electromagnetic propagation through the atmosphere. Comprised of 39 chapters, this book begins with a discussion on the optics and spectroscopy of water vapor. Some actual spectra showing the problems specific to the water molecule are described, along with the method used to calculate precise vibration-rotation energy levels and wave functions. Atmospheric infrared transmission measurements in maritime locations are also presented. Subsequent sections explore microwave and millimeter wave phenomena; geoastrophysical applications; and in situ measurements, remote sensing, and meteorology of water vapor. The final chapters deal with the microphysics and atmospheric chemistry of water vapor. This monograph will be of interest to scientists from universities, government agencies, research laboratories, and industry.
Download or read book Sensing atmospheric water vapor with the Global Positioning System written by C. ROCKEN and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sensing Atmospheric Water Vapor Using Radio Waves written by Chalmers tekniska högskola and published by . This book was released on 2002 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing of Atmospheric Water Vapor with the Global Positioning System written by John Joseph Braun and published by . This book was released on 2004 with total page 250 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sensing Atmospheric Water Vapour Using the Global Positioning System written by A. Z. A. Combrink and published by . This book was released on 2006 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The GEWEX Global Water Vapor Project GVaP U S Opportunities written by National Research Council and published by National Academies Press. This book was released on 1999-08-19 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water vapor plays a vital role in shaping weather and climate on Earth. Hence, monitoring water vapor is critical if we are to explain and predict the behavior of the climate system. Unfortunately, measuring and analyzing water vapor on the time and space scales needed for this purpose have proven elusive. Therefore, it is appropriate and timely for the international climate research community, through the Global Energy and Water Cycle Experiment (GEWEX), to focus a project around water vapor. To this end, a GEWEX Global Water Vapor Project (GVaP) has been proposed, and draft Science and Implementation Plans have been developed. As requested by the U.S. Global Change Research Program (USGCRP), the National Research Council's (NRC) GEWEX Panel has reviewed these plans with an eye toward U.S. priorities.
Download or read book Final Report for ARM Project Measuring 4 D Water Vapor Fields with GPS written by and published by . This book was released on 2006 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Water vapor is a primary element in the Earth's climate system. Atmospheric water vapor is central to cloud processes, radiation transfer, and the hydrological cycle. Using funding from Department of Energy (DOE) grant DE-FG03-02ER63327, the University Corporation for Atmospheric Research (UCAR) developed new observational techniques to measure atmospheric water vapor and applied these techniques to measure four dimensional water vapor fields throughout the United States Southern Great Plains region. This report summarizes the development of a new observation from ground based Global Positioning System (GPS) stations called Slant Water Vapor (SW) and it's utilization in retrieving four dimensional water vapor fields. The SW observation represents the integrated amount of water vapor between a GPS station and a transmitting satellite. SW observations provide improved temporal and spatial sampling of the atmosphere when compared to column-integrated quantities such as preciptitable water vapor (PW). Under funding from the DOE Atmospheric Radiation Measurement (ARM) program, GPS networks in the Southern Great Plains (SGP) region were deployed to retrieve SW to improve the characterization of water vapor throughout the region. These observations were used to estimate four dimensional water vapor fields using tomographic approaches and through assimilation into the MM5 numerical weather model.
Download or read book Estimation of Atmospheric Water Vapour Using the Global Positioning System written by M. J. Falvey and published by . This book was released on 2002 with total page 350 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Detection of Atmospheric Water Vapour Using the Global Positioning System written by Adriaan Zacharias Albertus Combrink and published by . This book was released on 2003 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Remote Sensing of Solar Influence on Antarctic Terrestrial Climate from a GPS Perspective written by Wayan Suparta and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water vapour is a key in the hydrological cycle and the main driver of atmospheric events. Remote sensing of water vapor using the Global Positioning System (GPS) is essential for weather and climate research. Advances in GPS application has allowed the measurements of ionospheric total electron content (TEC) and perceptible water vapour (PWV) in all weather conditions and on a global scale with fine temporal and spatial resolution. Using TEC as a measure of solar activity and PWV as the terrestrial response, a new approach for determining and quantifying the solar influence on PWV by indirectly correlating the PWV and TEC variations on a time basis is presented in this book.
Download or read book Global Navigation Satellite System Monitoring of the Atmosphere written by Guergana Guerova and published by Elsevier. This book was released on 2021-09-11 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt: Global Navigation Satellite System (GNSS) monitoring of the atmosphere is an interdisciplinary topic: a collaboration between geodetic and atmospheric communities. As such, this topic requires sufficient basic knowledge about both GNSS and the atmosphere. Global Navigation Satellite System Monitoring of the Atmosphere begins by introducing GNSS, its components, and signals. It then explains the basics of the atmosphere, starting from the ionosphere to the troposphere. The GNSS tropospheric monitoring is separated for application in numerical weather prediction and nowcasting. Further chapters focus on the application of GNSS for monitoring the climate as well as soil moisture. Finally, the book concludes by discussing GNSS processing along with introducing the latest developments and applications for using atmospheric data to provide precise real-time GNSS products. Explains the basics of GNSS positioning and signals Includes the state of the art in GNSS observations of the atmosphere and hydrosphere Presents the basics of numerical weather prediction and analysis
Download or read book Retrieval of Atmospheric Water Vapor Using GPS Occultation written by and published by . This book was released on 2002 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Global Water Vapor Estimates from Measurements from Active GPS RO Sensors and Passive Infrared and Microwave Sounders written by Shu-Peng Ho and published by . This book was released on 2020 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Water vapor plays an important role in both climate change processes and atmospheric chemistry and photochemistry. Global water vapor vertical profile can be derived from satellite infrared and microwave sounders. However, no single remote sensing technique is capable of completely fulfilling the needs for numerical weather prediction, chemistry, and climate studies in terms of vertical resolution, spatial and temporal coverage, and accuracy. In addition to the passive infrared and microwave sounder observations, the active global positioning system (GPS) radio occultation (RO) technique can also provide all-weather temperature and moisture profiles. In this chapter, we describe the current developments of global water vapor vertical profile and total precipitable water derived from active GPS RO measurements. In addition, we also demonstrate the potential improvement of global water vapor estimates using combined active GPS RO and passive IR/MW particularly from Atmospheric InfraRed Sounder (AIRS) and Advanced Technology Microwave Sounder (ATMS) measurements. Results show that because RO data are very sensitive to water vapor variation in the moisture rich troposphere, the RO data are able to provide extra water vapor information for the combined AIRS/ATMS and RO retrievals in the lower troposphere.
Download or read book Atmospheric Rivers written by F. Martin Ralph and published by Springer Nature. This book was released on 2020-07-10 with total page 284 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is the standard reference based on roughly 20 years of research on atmospheric rivers, emphasizing progress made on key research and applications questions and remaining knowledge gaps. The book presents the history of atmospheric-rivers research, the current state of scientific knowledge, tools, and policy-relevant (science-informed) problems that lend themselves to real-world application of the research—and how the topic fits into larger national and global contexts. This book is written by a global team of authors who have conducted and published the majority of critical research on atmospheric rivers over the past years. The book is intended to benefit practitioners in the fields of meteorology, hydrology and related disciplines, including students as well as senior researchers.
