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Comparing Trmm Rainfall Retrieval With Noaa Buoy Rain Gauge Data
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Book Synopsis Comparing TRMM Rainfall Retrieval with NOAA Buoy Rain Gauge Data by : Amy Blackmore Phillips
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.
Book Synopsis Changes in Tropical Rainfall Measuring Mission (TRMM) Retrievals Due to the Orbit Boost Estimated from Rain Gauge Data by : Jeremy DeMoss
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 Master's Theses Directories written by and published by . This book was released on 2003 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Education, arts and social sciences, natural and technical sciences in the United States and Canada".
Book Synopsis Assessment of the Benefits of Extending the Tropical Rainfall Measuring Mission by : National Research Council
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 2006-09-22 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.
Book Synopsis Encyclopedia of Hydrological Sciences by : M. G. Anderson
Download or read book Encyclopedia of Hydrological Sciences written by M. G. Anderson and published by . This book was released on 2005 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Comparing TRMM-based Multi-Satellite Precipitation Analysis (TMPA) Data with Ground-based Rainfall Data by : Pedro Miguel Mendonça Paramés
Download or read book Comparing TRMM-based Multi-Satellite Precipitation Analysis (TMPA) Data with Ground-based Rainfall Data written by Pedro Miguel Mendonça Paramés and published by . This book was released on 2010 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Satellite-based precipitation estimates has seen an increased use as utility in performing hydrologic analyses in areas of the globe where precipitation data is sparse or non-existent. However few studies have been conducted in order to evaluate the performance of satellite-based precipitation estimates when compared to ground-based observations (rain gauges or weather radar). This report evaluates the TRMM-based Multi-Satellite Precipitation Analysis (TMPA) 3B42 Version 6 rainfall estimates with three sources of ground-based precipitation observations; a low spatial density gauge network, a high spatial density gauge network, and NEXRAD Stage III rainfall data. TMPA data was evaluated visually and statistically at the native satellite pixel scale and basin scale for nine years. TMPA data was also evaluated during ten rainfall events which generated significant runoff within the study basin. Results indicate that TMPA data consistently overestimates rainfall at both spatial scales and poorly correlates with all three ground-based observations. Furthermore, TMPA data suffers from falsely detecting rainfall when ground observations do not detect rainfall and the inability to detect rainfall of lower intensities. However, improvements in the performance of TMPA were shown when analyzed during specific storm events. The findings in this report provide insights on the capabilities and limitations of TMPA data for possible users of the product.
Book Synopsis IEEE International Geoscience and Remote Sensing Symposium Proceedings by :
Download or read book IEEE International Geoscience and Remote Sensing Symposium Proceedings written by and published by . This book was released on 2003 with total page 792 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Hydrometeorology written by and published by . This book was released on 2006 with total page 1360 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Spring Meeting by : American Geophysical Union. Meeting
Download or read book Spring Meeting written by American Geophysical Union. Meeting and published by . This book was released on 2002 with total page 420 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Earth Observer written by and published by . This book was released on 1996 with total page 270 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book IGARSS 2002 written by and published by . This book was released on 2002 with total page 728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Measuring Precipitation from Space by : V. Levizzani
Download or read book Measuring Precipitation from Space written by V. Levizzani and published by Springer Science & Business Media. This book was released on 2007-05-11 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt: No other book can offer such a powerful tool to understand the basics of remote sensing for precipitation, to make use of existing products and to have a glimpse of the near future missions and instruments. This book features state-of-the-art rainfall estimation algorithms, validation strategies, and precipitation modeling. More than 20 years after the last book on the subject the worldwide precipitation community has produced a comprehensive overview of its activities, achievements, ongoing research and future plans.
Book Synopsis Journal of Atmospheric and Oceanic Technology by :
Download or read book Journal of Atmospheric and Oceanic Technology written by and published by . This book was released on 2006 with total page 952 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Microwave Radiometry and Remote Sensing of the Earth's Surface and Atmosphere by : 0 Pampaloni
Download or read book Microwave Radiometry and Remote Sensing of the Earth's Surface and Atmosphere written by 0 Pampaloni and published by CRC Press. This book was released on 2023-06-14 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains a selection of refereed papers presented at the 6 Specialist Meeting on Microwave Radiometry and Remote Sensing of the Environment held in Florence, Italy on March 15-18, 1999. Over the last two decades, passive microwave remote sensing has made considerable progress, and has achieved significant results in the study of the Earth's surface and atmosphere. Many years of observations with ground-based and satellite-borne sensors have made an important contribution to improving our knowledge of many geophysical processes of the Earth's environment and of global changes. The evolution in microwave radiometers aboard satellites has increased steadily over recent years. At the same time, many investigations have been carried out both to improve the algorithms for the retrieval of geophysical parameters and to develop new technologies. The book is divided into four main sections: three of these are devoted to the observation of the Earth's surface and atmosphere, and the fourth, to future missions and new technologies. The first section deals with the study of sea and land surfaces, and reports recent advances in remote sensing of ocean wind, sea ice, soil moisture and vegetation biomass, including electromagnetic modelling and the assimilation of radiometric data in models of land surface processes. The following two sections are devoted to the measurement of atmospheric quantities which are of fundamental importance in climatology and meteorology, and, since they influence radio-wave propagation, they also impact on several other fields, including geodesy, navigational satellite and radioastronomy. The last section presents an overview of new technologies and plans for future missions.
Book Synopsis AGU 2004 Joint Assembly by : American Geophysical Union. Joint Assembly
Download or read book AGU 2004 Joint Assembly written by American Geophysical Union. Joint Assembly and published by . This book was released on 2004 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :National Academies of Sciences, Engineering, and Medicine Publisher :National Academies Press ISBN 13 :0309388805 Total Pages :351 pages Book Rating :4.3/5 (93 download)
Book Synopsis Next Generation Earth System Prediction by : National Academies of Sciences, Engineering, and Medicine
Download or read book Next Generation Earth System Prediction written by National Academies of Sciences, Engineering, and Medicine and published by National Academies Press. This book was released on 2016-08-22 with total page 351 pages. Available in PDF, EPUB and Kindle. Book excerpt: As the nation's economic activities, security concerns, and stewardship of natural resources become increasingly complex and globally interrelated, they become ever more sensitive to adverse impacts from weather, climate, and other natural phenomena. For several decades, forecasts with lead times of a few days for weather and other environmental phenomena have yielded valuable information to improve decision-making across all sectors of society. Developing the capability to forecast environmental conditions and disruptive events several weeks and months in advance could dramatically increase the value and benefit of environmental predictions, saving lives, protecting property, increasing economic vitality, protecting the environment, and informing policy choices. Over the past decade, the ability to forecast weather and climate conditions on subseasonal to seasonal (S2S) timescales, i.e., two to fifty-two weeks in advance, has improved substantially. Although significant progress has been made, much work remains to make S2S predictions skillful enough, as well as optimally tailored and communicated, to enable widespread use. Next Generation Earth System Predictions presents a ten-year U.S. research agenda that increases the nation's S2S research and modeling capability, advances S2S forecasting, and aids in decision making at medium and extended lead times.
Book Synopsis Precipitation: Advances in Measurement, Estimation and Prediction by : Silas C. Michaelides
Download or read book Precipitation: Advances in Measurement, Estimation and Prediction written by Silas C. Michaelides and published by Springer Science & Business Media. This book was released on 2008-02-27 with total page 552 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume is the outcome of contributions from 51 scientists who were invited to expose their latest findings on precipitation research and in particular, on the measurement, estimation and prediction of precipitation. The reader is presented with a blend of theoretical, mathematical and technical treatise of precipitation science but also with authentic applications, ranging from local field experiments and country-scale campaigns to multinational space endeavors.
