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Author : 陈必焰
Publisher :
ISBN 13 : 9787548749011
Total Pages : 0 pages
Book Rating : 4.7/5 (49 download)
Download or read book Tomographic Reconstruction of Atmospheric Water Vapor Field and Its Potential Applications written by 陈必焰 and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Biyan Chen
Publisher :
ISBN 13 :
Total Pages : 214 pages
Book Rating : 4.:/5 (99 download)
Download or read book Remote Sensing of Atmospheric Water Vapor Field with Tomography Using Multi-sensor Data written by Biyan Chen and published by . This book was released on 2017 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: To assess the quality of water vapor data from various observation systems, an intercomparison study was conducted for water vapor data derived from GPS, radiosonde, water vapor radiometer (WVR), non-hydrostatic model (NHM), and European Center for Medium-Range Weather Forecasts (ECMWF). For ZWD comparison with radiosonde data, ECMWF achieves the highest accuracy of 17.73 mm (~2.87 mm in precipitable water vapor (PWV)). GPS, WVR, and NHM have RMS errors of 18.06 mm (~2.93 mm in PWV), 18.15 mm (~2.94 mm in PWV), and 29.53 mm (~4.78 mm in PWV), respectively. Slant wet delays (SWD) estimated by GPS were assessed by SWDs derived from ECMWF, an overall accuracy of 36.44 mm (~5.90 mm in slant PWV) is yielded. Water vapor tomographic experiments were carried out using multiple data from GPS, radiosonde, WVR, NHM, sunphototmeter, and synoptic observations in Hong Kong. Experimental results have revealed that the best vertical constraint scheme is using average radiosonde profiles observed during the three days prior to the tomographic epoch. In the evaluation by radiosonde observations, the multi-sensor tomographic wet refractivity fields achieved an overall accuracy of 7.13 mm/km. In the vertical direction, RMS errors generally decrease with altitude from 11.44 mm/km at the lowest layer (0 to 0.4 km) to 3.30 mm/km at the uppermost layer (7.5 to 8.5 km). The tomographic results obtain RMS errors in the range of 6~9 mm/km at the horizontal grids when compared with ECMWF data. An important goal of water vapor tomography is to benefit the extreme weather prediction and thus to mitigate ensuing hazards. Due to the transfer of energy in the atmospheric processes, atmospheric water vapor has a strong influence on formation and lifecycle of severe weathers. Three heavy precipitation events that occurred in Hong Kong were investigated to examine the potential of water vapor tomography in extreme weather prediction. Several positive findings demonstrated the ability of tomography in forecasting heavy rains as it can detect atmospheric instability before the events.
Author : Arnold A. Barnes
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.3/5 (91 download)
Download or read book Atmospheric Water Vapor Divergence written by Arnold A. Barnes and published by . This book was released on 1965 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Adarsh Deepak
Publisher : Elsevier
ISBN 13 : 1483273342
Total Pages : 712 pages
Book Rating : 4.4/5 (832 download)
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.
Author : Vern Philip Hart
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (896 download)
Download or read book The Application of Tomographic Reconstruction Techniques to Ill-conditioned Inverse Problems in Atmospheric Science and Biomedical Imaging written by Vern Philip Hart and published by . This book was released on 2012 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 704 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Donat Perler
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (774 download)
Download or read book Water Vapor Tomography Using Global Navigation Satellite Systems written by Donat Perler and published by . This book was released on 2011 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Adarsh Deepak
Publisher :
ISBN 13 : 9780122084409
Total Pages : 695 pages
Book Rating : 4.0/5 (844 download)
Download or read book Atmospheric Water Vapor written by Adarsh Deepak and published by . This book was released on with total page 695 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1040 pages
Book Rating : 4.:/5 (31 download)
Download or read book Seventh International Conference on Antennas and Propagation written by and published by . This book was released on 1991 with total page 1040 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Author : Daniel H. Lufkin
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (318 download)
Download or read book Atmospheric Water Vapor Divergence and the Water Balance at the Earth's Surface written by Daniel H. Lufkin and published by . This book was released on 1959 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt: After reviewing the nature and derivation of the northern hemisphere water vapor divergence data published by Starr and Peixoto (1958), the author presents a new and more detailed analysis of the divergence field. The relation between the atmospheric moisture divergence and the terrestrial branch of the hydrologic cycle is examined in the light of the geology and physiography of many regions which are associated with marked moisture divergence maxima and minima. The relation between the moisture divergence over the seas and the water budget of the sea surface is considered in a new treatment of the empirically derived correlation between salinity and moisture divergence, resulting in a new formula for the zonal mean salinity as a function of the zonal mean divergence. The latitudinal variation of the landward transport of oceanic moisture is calculated and is the first estimate ever made of this quantity. Finally, the implications of the latent heat transported by moisture are discussed in relation to the formulation of numerical models of the general circulation.
Author : Peter M. Kuhn
Publisher :
ISBN 13 :
Total Pages : 11 pages
Book Rating : 4.:/5 (137 download)
Download or read book Zonal Profiles of Atmospheric Water Vapor written by Peter M. Kuhn and published by . This book was released on 1975 with total page 11 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Soyoung Cha
Publisher :
ISBN 13 :
Total Pages : 9 pages
Book Rating : 4.:/5 (227 download)
Download or read book Tomographic Reconstruction of Strongly Refracting Fields and Its Application to Interferometric Measurement of Boundary Layers written by Soyoung Cha and published by . This book was released on 1980 with total page 9 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 600 pages
Book Rating : 4.0/5 ( download)
Download or read book Seventh International Conference on Antennas and Porpagation, 15-18 April 1991 written by and published by . This book was released on 1991 with total page 600 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Douglas George Brinkman
Publisher :
ISBN 13 :
Total Pages : 72 pages
Book Rating : 4.:/5 (299 download)
Download or read book Investigation of Upper Atmospheric Water Vapor Sources and Sinks Through the Use of a Photochemical Transport Model written by Douglas George Brinkman and published by . This book was released on 1983 with total page 72 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 1032 pages
Book Rating : 4.F/5 ( download)
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1032 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Karl James Kinkead
Publisher :
ISBN 13 :
Total Pages : 230 pages
Book Rating : 4.:/5 (22 download)
Download or read book An Experimental Investigation of the Effects of Atmospheric Water Vapor on the Combined Total of Solar and Atmospheric Radiation written by Karl James Kinkead and published by . This book was released on 1973 with total page 230 pages. Available in PDF, EPUB and Kindle. Book excerpt:
