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Time-lapse gravity data Corbetti caldera (Ethiopia): 2014/16 (NERC grant NE/L013932/1)

The RiftVolc microgravity network was comprised of a total of 4 benchmarks including a reference benchmark. Benchmark locations, observed gravity changes, dg14 -16, from 2014-2016, corresponding vertical deformation, Uz, free-air effect, and resultant residual gravity changes gr of the microgravity and GNSS network at Corbetti.

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Identification info

Metadata Language
English (en)
Dataset Reference Date ()
2020-01-31
Identifier
http://data.bgs.ac.uk/id/dataHolding/13607582
  University of Bristol - Joachim Gottsmann ( School of Earth Sciences )
Queen's Road, Wills Memorial Building , Bristol , BS8 1RJ ,
  University of Bristol - Joachim Gottsmann ( School of Earth Sciences )
Queen's Road, Wills Memorial Building , Bristol , BS8 1RJ ,
Maintenance and update frequency
notApplicable
GEMET - INSPIRE themes
  • Geology
BGS Thesaurus of Geosciences
  • Magma
  • Rift valleys
  • Caldera
  • Rift zone
  • Gravity
  • Deformation (structural geology)
Keywords
  • NERC_DDC
Limitations on Public Access
otherRestrictions
Other constraints
no limitations
Other constraints
The dataset is made freely available for access, e.g. via the Internet. Either no third party data / information is contained in the dataset or BGS has secured written permission from the owner(s) of any third party data / information contained in the dataset to make the dataset freely accessible.
Use constraints
otherRestrictions
Other constraints
The copyright of materials derived from the British Geological Survey's work is vested in the Natural Environment Research Council [NERC]. No part of this work may be reproduced or transmitted in any form or by any means, or stored in a retrieval system of any nature, without the prior permission of the copyright holder, via the BGS Intellectual Property Rights Manager. Use by customers of information provided by the BGS, is at the customer's own risk. In view of the disparate sources of information at BGS's disposal, including such material donated to BGS, that BGS accepts in good faith as being accurate, the Natural Environment Research Council (NERC) gives no warranty, expressed or implied, as to the quality or accuracy of the information supplied, or to the information's suitability for any use. NERC/BGS accepts no liability whatever in respect of loss, damage, injury or other occurence however caused.
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
Topic category
  • Geoscientific information
Extent
ET

Dataset Reference Date ()
2009

Extent
ETH

Dataset Reference Date ()
2009

Extent
ETHIOPIA [id=692000]

Dataset Reference Date ()
1979

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W


Begin date
2014-09-22
End date
2016-10-11
 

Spatial Reference System

No information provided.

Distribution Information

Data format
  • Text Document ()

Resource Locator
Data
Resource Locator
Data
 
Quality Scope
dataset
Other
dataset

Report

Dataset Reference Date ()
2011
Explanation
See the referenced specification
Degree

Report

Dataset Reference Date ()
2010-12-08
Explanation
See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF
Degree
Statement
Gravimetric data were collected in late September/early October of 2014, 2015 and 2016 using a Scintrex CG-5 gravimeter (serial no. 572) at three benchmarks and related to a reference (CBAS) located outside the area of interest. Benchmark occupations followed a strict protocol whereby several repeat measurements were conducted as part of a survey loop, which started and ended at the reference. At least 5 cycles of 45 second-long readings at 6Hz were performed at each benchmark and the number of cycles was adjusted appropriate to the required data precision of < 2µGal. Benchmarks were visited between 3 and 6 times per survey resulting in data repeatability of between 1 and 7µGal at individual benchmarks. Raw gravity data were reduced for tidal effects of both Earth and ocean components using the Wahr-Dehant and GOT99.2 latitude-dependent models, respectively.

Metadata

File identifier
9df90daf-e91a-33f3-e054-002128a47908 XML
Metadata Language
English (en)
Resource type
dataset
Metadata Date
2023-03-30
Metadata standard name
UK GEMINI
Metadata standard version
2.3
  British Geological Survey
Environmental Science Centre,Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom
+44 115 936 3100
 
 

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