Download or read book The AFGL Absolute Gravity System s Error Budget Revisited written by Robert L. Iliff and published by . This book was released on 1985 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The AFGL Air Force Geophysics Laboratory Absolute Gravity System s Error Budget Revisted written by Robert L. Iliff and published by . This book was released on 1985 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt: The error budget for the absolute gravity measuring instrument has been reevaluated for the purpose of locating and correcting an apparent bias that appeared in the data at the gravity lab early in 1981. The results of this analysis reveal a major equipment-induced error and minor data reduction errors. Revised gravity values at various sites across the U.S. and Sevres, France are given along with values obtained with other instruments at collocated sites. Keywords: Absolute gravity; Gravity; Interferometer.

Download or read book The AFGL Absolute Gravity System s Error Budget Revisited written by Robert L. Iliff and published by . This book was released on 1985 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The AFGL Absolute Gravity Measuring System written by Robert L. Iliff and published by . This book was released on 1983 with total page 166 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The AFGL Absolute Gravity Measuring System written by Robert L. Iliff and published by . This book was released on 1983 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The AFGL Air Force Geophysics Laboratory Absolute Gravity Measuring System A Final Report and Operating Maintenance Manual written by R. L. Iliff and published by . This book was released on 1983 with total page 161 pages. Available in PDF, EPUB and Kindle. Book excerpt: A multiyear program at the Air Force Geophysics Laboratory (AFGL) has produced an instrument for absolute gravity measurements accurate to eight decimal places. This transportable instrument has been used to measure gravity at a calibration line through the central part of the United States, as well as at Hanscom AFB, Mass. The final version of the equipment is described. Data processing procedures, corrections applied, and the determination of these corrections are given. The report also gives operation and maintenance procedures for the apparatus. Also included in the report is a history of the development of the absolute-gravity measuring apparatus, including development of the first prototype instrument, experiments with an apparatus incorporating a falling chamber-within-a-chamber, the ideas behind this approach, and the shortcomings that caused a return to the single-chamber approach.

Download or read book The AFGL Absolute Gravity Program Air Force Geophysics Laboratory written by United States. National Technical Information Service and published by . This book was released on 1979 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1988 with total page 1048 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Accessions List written by Environmental Science Information Center. Library and Information Services Division and published by . This book was released on 1986 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Accessions List written by Assessment and Information Services Center (U.S.). Library and Information Services Division and published by . This book was released on 1983 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Accessions List written by United States. National Environmental Satellite, Data, and Information Service. Library and Information Services Division and published by . This book was released on 1983 with total page 606 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book LBL Newsmagazine written by and published by . This book was released on 1986 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Precise Geodetic Infrastructure written by National Research Council and published by National Academies Press. This book was released on 2010-10-25 with total page 157 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geodesy is the science of accurately measuring and understanding three fundamental properties of Earth: its geometric shape, its orientation in space, and its gravity field, as well as the changes of these properties with time. Over the past half century, the United States, in cooperation with international partners, has led the development of geodetic techniques and instrumentation. Geodetic observing systems provide a significant benefit to society in a wide array of military, research, civil, and commercial areas, including sea level change monitoring, autonomous navigation, tighter low flying routes for strategic aircraft, precision agriculture, civil surveying, earthquake monitoring, forest structural mapping and biomass estimation, and improved floodplain mapping. Recognizing the growing reliance of a wide range of scientific and societal endeavors on infrastructure for precise geodesy, and recognizing geodetic infrastructure as a shared national resource, this book provides an independent assessment of the benefits provided by geodetic observations and networks, as well as a plan for the future development and support of the infrastructure needed to meet the demand for increasingly greater precision. Precise Geodetic Infrastructure makes a series of focused recommendations for upgrading and improving specific elements of the infrastructure, for enhancing the role of the United States in international geodetic services, for evaluating the requirements for a geodetic workforce for the coming decades, and for providing national coordination and advocacy for the various agencies and organizations that contribute to the geodetic infrastructure.

Download or read book Physical Geodesy written by Bernhard Hofmann-Wellenhof and published by Springer Science & Business Media. This book was released on 2005-11-18 with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt: Based on "Heiskanen/Moritz" which served for more than 30 years as a standard reference Treats physical geodesy encyclopaedically Seamless blend of new ideas and methods (GPS, satellites, collocation)

Download or read book Far Travelers written by Oran W. Nicks and published by . This book was released on 1985 with total page 278 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Geoid Determination written by Fernando Sansò and published by Springer Science & Business Media. This book was released on 2013-02-13 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book will be based on the material of the lecture noties in several International Schools for the Determination and Use of the Geoid, organized by the International Geoid Serivice of the International Association of Geodesy. It consolidates, unifies, and streamlines this material in a unique way not covereed by the few other books that exist on this subjext. More specifically, the book presents (for the first time in a single volume) the theory and methodology of the most common technique used for precise determination of the geoid, including the computation of the marine geoid from satellite altimetry data. These are illustrated by specific examples and actual computations of local geoids. In addition, the book provides the fundamentals of estimating orthometric heights without spirit levelling, by properly combining a geoid with heights from GPS. Besides the geodectic and geophysical uses, this last application has made geoid computation methods very popular in recent years because the entire GPS and GIS user communities are interested in estimating geoid undulations in order to convert GPS heights to physically meaningful orthometric heights (elevations above mean sea level). The overall purpose of the book is, therefore, to provide the user community (academics, graduate students, geophysicists, engineers, oceanographers, GIS and GPS users, researchers) with a self-contained textbook, which will supply them with the complete roadmap of estimating geoid undulations, from the theoretical definitions and formulas to the available numerical methods and their implementation and the test in practice.

Download or read book Defense s Nuclear Agency 1947 1997 DTRA History Series written by Defense Threat Reduction Agency and published by Militarybookshop.CompanyUK. This book was released on 2003-09 with total page 476 pages. Available in PDF, EPUB and Kindle. Book excerpt: This official history was originally printed in very small numbers in 2002. "Defense's Nuclear Agency, 1947-1997" traces the development of the Armed Forces Special Weapons Project (AFSWP), and its descendant government organizations, from its original founding in 1947 to 1997. After the disestablishment of the Manhattan Engineering District (MED) in 1947, AFSWP was formed to provide military training in nuclear weapons' operations. Over the years, its sequential descendant organizations have been the Defense Atomic Support Agency (DASA) from 1959 to 1971, the Defense Nuclear Agency (DNA) from 1971 to 1996, and the Defense Special Weapons Agency (DSWA) from 1996 to 1998. In 1998, DSWA, the On-Site Inspection Agency, the Defense Technology Security Administration, and selected elements of the Office of Secretary of Defense were combined to form the Defense Threat Reduction Agency (DTRA).