Earth-prints repository, logo   DSpace

About DSpace Software
|earth-prints home page | roma library | bologna library | catania library | milano library | napoli library | palermo library
Please use this identifier to cite or link to this item: http://hdl.handle.net/2122/9695

Authors: Greco, F.*
Biolcati, E.*
Pistorio, A.*
D'Agostino, G.*
Germak, A.*
Origlia, C.*
Del Negro, C.*
Title: Absolute gravity measurements at three sites characterized by different environmental conditions using two portable ballistic gravimeters
Title of journal: The European Physical Journal Plus
Series/Report no.: /130 (2015)
Publisher: Springer Berlin Heidelberg
Issue Date: 2015
DOI: 10.1140/epjp/i2015-15038-0
Keywords: absolute gravimeter
gravity acceleration
comparison of absolute gravimeters
Abstract: The performances of two absolute gravimeters at three different sites in Italy between 2009 and 2011 is presented. The measurements of the gravity acceleration g were performed using the absolute gravimeters Micro-g LaCoste FG5#238 and the INRiM prototype IMGC-02, which represent the state of the art in ballistic gravimeter technology (relative uncertainty of a few parts in 10 9 ). For the comparison, the measured g values were reported at the same height by means of the vertical gravity gradient estimated at each site with relative gravimeters. The consistency and reliability of the gravity observations, as well as the performance and efficiency of the instruments, were assessed by measurements made in sites charac- terized by different logistics and environmental conditions. Furthermore, the various factors affecting the measurements and their uncertainty were thoroughly investigated. The measurements showed good agree- ment, with the minimum and maximum differences being 4.0 and 8.3 µGal. The normalized errors are very much lower than 1, ranging between 0.06 and 0.45, confirming the compatibility between the results. This excellent agreement can be attributed to several factors, including the good working order of gravimeters and the correct setup and use of the instruments in different conditions. These results can contribute to the standardization of absolute gravity surveys largely for applications in geophysics, volcanology and other branches of geosciences, allowing achieving a good trade-off between uncertainty and efficiency of gravity measurements.
Appears in Collections:04.08.07. Instruments and techniques
Papers Published / Papers in press

Files in This Item:

File SizeFormatVisibility
Greco et al 2015 (EPJP).pdf461.47 kBAdobe PDFonly authorized users View/Open


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.


Share this record
Del.icio.us

Citeulike

Connotea

Facebook

Stumble it!

reddit


 

Valid XHTML 1.0! ICT Support, development & maintenance are provided by CINECA. Powered on DSpace Software. CINECA