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Author :
Publisher :
ISBN 13 :
Total Pages : 305 pages
Book Rating : 4.:/5 (543 download)
Download or read book Tropical Rainfall Measuring Mission (TRMM) Rain Retrievals Workshop written by and published by . This book was released on 1992 with total page 305 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Research Council
Publisher : National Academies Press
ISBN 13 : 0309180597
Total Pages : 116 pages
Book Rating : 4.3/5 (91 download)
Download or read book Assessment of the Benefits of Extending the Tropical Rainfall Measuring Mission written by National Research Council and published by National Academies Press. This book was released on 2006-08-22 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt: Launched jointly in 1997 by the National Aeronautics and Space Administration (NASA) and the Japan Aerospace Exploration Agency (JAXA), the Tropical Rainfall Measuring Mission (TRMM) is a satellite mission that placed a unique suite of instruments, including the first precipitation radar, in space. These instruments are used to monitor and predict tropical cyclone tracks and intensity, estimate rainfall, and monitor climate variability (precipitation and sea surface temperature). TRMM has been collecting data for seven years; this data is used by the Joint Typhoon Warning Center, the National Center for Environmental Prediction, and the National Hurricane Center, among others worldwide. In July 2004, NASA announced that it would terminate TRMM in August 2004. At the request of the National Oceanic and Atmospheric Administration (NOAA), the White House, and the science community, NASA agreed to continue TRMM operations through the end of 2004. Meanwhile, NASA asked a National Research Council (NRC) committee to provide advice on the benefits of keeping TRMM in operation beyond 2004. After holding a workshop with a number of experts in the field, the committee found that TRMM will contribute significantly to operations and science if the mission is extended; and therefore, strongly recommends continued operation of TRMM with the caveat that cost and risk will need to be further examined before a final decision about the future of TRMM can be made.
Author : Tropical Rainfall Measuring Mission. Science Steering Group
Publisher :
ISBN 13 :
Total Pages : 114 pages
Book Rating : 4.F/5 ( download)
Download or read book Report of the Science Steering Group for a Tropical Rainfall Measuring Mission (TRMM) written by Tropical Rainfall Measuring Mission. Science Steering Group and published by . This book was released on 1988 with total page 114 pages. Available in PDF, EPUB and Kindle. Book excerpt: "The Tropical Rainfall Measuring Mission (TRMM), a satellite program now being studied jointly by the United States and Japan, would carry out the systematic study of tropical rainfall required for major strides in weather and climate research ... This report presents the scientific justification for TRMM and outlines the implementation process for the scientific community."--Preface.
Author :
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.3/5 (91 download)
Download or read book TRMM written by and published by . This book was released on 1989 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Jeremy DeMoss
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (69 download)
Download or read book Changes in Tropical Rainfall Measuring Mission (TRMM) Retrievals Due to the Orbit Boost Estimated from Rain Gauge Data written by Jeremy DeMoss and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: During the first three-and-a-half years of the Tropical Rainfall Measuring Mission (TRMM), the TRMM satellite operated at a nominal altitude of 350 km. To reduce drag, save maneuvering fuel, and prolong the mission lifetime, the orbit was boosted to 403 km in August 2001. The change in orbit altitude produced small changes in a wide range of observing parameters, including field-of-view size and viewing angles. Due to natural climatic variability, it is not possible to evaluate possible changes in precipitation retrievals from the satellite data alone. We estimate changes in TRMM Microwave Imager (TMI) and the Precipitation Radar (PR) precipitation retrievals due to the orbit boost by comparing them with surface rain gauges on ocean buoys operated by the NOAA Pacific Marine Environment Laboratory (PMEL). For each rain gauge, we compute the bias between the satellite and the gauge for pre- and post-boost time periods. For the TMI, the satellite is biased ~12% low relative to the gauges during the pre-boost period and ~1.5% low during the post-boost period. The mean change in bias relative to the gauges is approximately 0.4 mm day−1. The PR is biased significantly low relative to the gauges during both boost periods. The change in bias is rain rate dependent, with larger changes in areas with higher mean precipitation rates.
Download or read book Tropical Rainfall Measuring Mission (TRMM) Science written by and published by . This book was released on 1993 with total page 48 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 892 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 1994 with total page 892 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Tropical Rainfall Measuring Mission Office written by and published by . This book was released on 1993 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 4 pages
Book Rating : 4.:/5 (318 download)
Download or read book Tropical Rainfall Measuring Mission written by and published by . This book was released on 1998 with total page 4 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wei-Kuo Tao
Publisher : Springer
ISBN 13 : 1878220632
Total Pages : 238 pages
Book Rating : 4.8/5 (782 download)
Download or read book Cloud Systems, Hurricanes, and the Tropical Rainfall Measuring Mission (TRMM) written by Wei-Kuo Tao and published by Springer. This book was released on 2015-03-30 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is a tribute to a pioneer in tropical meteorology research, Dr. Joanne Simpson. It is a recollection of some of the high points of her career, from her fifty years of investigating hurricanes and clouds to her management of the crutial and highly successful TRMM project (Tropical Rainfall Measuring Mission), a joint mission between the NASA and the Japan Aerospace Exploration Agency (JAXA).
Author : C. Prabhakara
Publisher : BiblioGov
ISBN 13 : 9781289157203
Total Pages : 46 pages
Book Rating : 4.1/5 (572 download)
Download or read book A Method to Retrieve Rainfall Rate Over Land from Trmm Microwave Imager Observations written by C. Prabhakara and published by BiblioGov. This book was released on 2013-07 with total page 46 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over tropical land regions, rain rate maxima in mesoscale convective systems revealed by the Precipitation Radar (PR) flown on the Tropical Rainfall Measuring Mission (TRMM) satellite are found to correspond to thunderstorms, i.e., Cbs. These Cbs are reflected as minima in the 85 GHz brightness temperature, T85, observed by the TRMM Microwave Imager (TMI) radiometer. Because the magnitude of TMI observations do not discriminate satisfactorily convective and stratiform rain, we developed here a different TMI discrimination method. In this method, two types of Cbs, strong and weak, are inferred from the Laplacian of T85 at minima. Then, to retrieve rain rate, where T85 is less than 270 K, a weak (background) rain rate is deduced using T85 observations. Furthermore, over a circular area of 10 km radius centered at the location of each T85 minimum, an additional Cb component of rain rate is added to the background rain rate. This Cb component of rain rate is estimated with the help of (T19-T37) and T85 observations. Initially, our algorithm is calibrated with the PR rain rate measurements from 20 MCS rain events. After calibration, this method is applied to TMI data taken from several tropical land regions. With the help of the PR observations, we show that the spatial distribution and intensity of rain rate over land estimated from our algorithm are better than those given by the current TMI-Version-5 Algorithm. For this reason, our algorithm may be used to improve the current state of rain retrievals on land.
Author : Amy Blackmore Phillips
Publisher :
ISBN 13 : 9781423548553
Total Pages : 60 pages
Book Rating : 4.5/5 (485 download)
Download or read book Comparing TRMM Rainfall Retrieval with NOAA Buoy Rain Gauge Data written by Amy Blackmore Phillips and published by . This book was released on 2002-12-01 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: This study compares rain rate measurements from the Tropical Rainfall Measuring Mission (TRMM) satellite to rain rate measurements from rain gauges on open-ocean buoys. The rain gauges are part of the instrument package on the Next Generation Autonomous Temperature Line Acquisition System (ATLAS) buoys in the Tropical Atmosphere-Ocean/Triangle Trans-Ocean Buoy Network (TAO/TRITON) array in the tropical Pacific. The rain rate data from TRMM and 25 buoys are collected from January of 1998 to December of 2001. TRMM's 3G68 product provides instantaneous rain rate data averaged over 0.50 x 0.50 latitude-longitude grid boxes for the TRMM Microwave Imager (TMI), Precipitation Radar (PR), and a combined algorithm (COMB). The buoy's rain rate data are averaged over and reported in 10-minute intervals. Buoy data are compared to 1.00 x 1.00 TRMM area-averaged values centered on each of the 25 buoy locations. The 1.00 x 1.00 boxes are composed of four 0.50 x 0.50 3G68 grid boxes.
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723466632
Total Pages : 104 pages
Book Rating : 4.4/5 (666 download)
Download or read book Trmm (Tropical Rainfall Measuring Mission) written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-23 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Tropical Rainfall Measuring Mission (TRMM) is presented. TRMM is a satellite program being studied jointly by the United States and Japan which would carry out the systematic study of tropical rainfall required for major strides in weather and climate research. The scientific justification for TRMM is discussed. The implementation process for the scientific community, NASA management, and the other decision-makers and advisory personnel who are expected to evaluate the priority of the project is outlined. Simpson, Joanne (Editor) Goddard Space Flight Center CLIMATOLOGY; DATA ACQUISITION; METEOROLOGICAL SATELLITES; RAIN; TROPICAL METEOROLOGY; INTERNATIONAL COOPERATION; JAPAN; METEOROLOGICAL PARAMETERS; REMOTE SENSING...
Author :
Publisher :
ISBN 13 :
Total Pages : 38 pages
Book Rating : 4.:/5 (316 download)
Download or read book Tropical Rainfall Measuring Mission written by and published by . This book was released on 2005 with total page 38 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Nasa Technical Reports Server (Ntrs)
Publisher : BiblioGov
ISBN 13 : 9781289283841
Total Pages : 50 pages
Book Rating : 4.2/5 (838 download)
Download or read book The Tropical Rainfall Measuring Mission written by Nasa Technical Reports Server (Ntrs) and published by BiblioGov. This book was released on 2013-08 with total page 50 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recognizing the importance of rain in the tropics and the accompanying latent heat release, NASA for the U.S. and NASDA for Japan have partnered in the design, construction and flight of an Earth Probe satellite to measure tropical rainfall and calculate the associated heating. Primary mission goals are: 1) the understanding of crucial links in climate variability by the hydrological cycle, 2) improvement in the large-scale models of weather and climate, and 3) improvement in understanding cloud ensembles and their impacts on larger scale circulations. The linkage with the tropical oceans and landmasses are also emphasized. The Tropical Rainfall Measuring Mission (TRMM) satellite was launched in November 1997 with fuel enough to obtain a four to five year data set of rainfall over the global tropics from 37 deg N to 37 deg S. This paper reports progress from launch date through the spring of 1999. The data system and its products and their access is described, as are the algorithms used to obtain the data. Some exciting early results from TRMM are described. Some important algorithm improvements are shown. These will be used in the first total data reprocessing, scheduled to be complete in early 2000. The reader is given information on how to access and use the data.
Author : Joanne Simpson Special Issue on the Tropical Rainfall Measuring Mission
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (637 download)
Download or read book Tropical Rainfall Measuring Mission written by Joanne Simpson Special Issue on the Tropical Rainfall Measuring Mission and published by . This book was released on 2000 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722848675
Total Pages : 92 pages
Book Rating : 4.8/5 (486 download)
Download or read book Tropical Rainfall Measuring Mission (Trmm). Phase B written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-17 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt: The National Aeronautics and Aerospace Administration (NASA) and the National Space Development Agency of Japan (NASDA) initiated the Tropical Rainfall Measuring Mission (TRMM) to obtain more accurate measurements of tropical rainfall then ever before. The measurements are to improve scientific understanding and knowledge of the mechanisms effecting the intra-annual and interannual variability of the Earth's climate. The TRMM is largely dependent upon the handling and processing of the data by the TRMM Ground System supporting the mission. The objective of the TRMM is to obtain three years of climatological determinations of rainfall in the tropics, culminating in data sets of 30-day average rainfall over 5-degree square areas, and associated estimates of vertical distribution of latent heat release. The scope of this study is limited to the functions performed by TRMM Data Capture Facility (TDCF). These functions include capturing the TRMM spacecraft return link data stream; processing the data in the real-time, quick-look, and routine production modes, as appropriate; and distributing real time, quick-look, and production data products to users. The following topics are addressed: (1) TRMM end-to-end system description; (2) TRMM mission operations concept; (3) baseline requirements; (4) assumptions related to mission requirements; (5) external interface; (6) TDCF architecture and design options; (7) critical issues and tradeoffs; and (8) recommendation for the final TDCF selection process. Unspecified Center...
