Gro for GooD VES (Vertical Electrical Soundings) Data, Kwale County, Kenya (NERC grant NE/M008894/1)

Results of Vertical Electrical Soundings (VES) study conducted in Kwale County, Kenya in July and August 2017 by University of Nairobi and Water Resources Management Authority as part of the Gro for GooD project (https://upgro.org/consortium/gro-for-good/) to determine the existence of deeper aquifers.

Citation proposal
. Gro for GooD VES (Vertical Electrical Soundings) Data, Kwale County, Kenya (NERC grant NE/M008894/1). https://metadata.bgs.ac.uk/geonetwork/srv/api/records/75bca52e-3198-3d4a-e054-002128a47908

Simple

Date ( Creation ): 2018

Identifier: http://data.bgs.ac.uk/id/dataHolding/13607375

Principal investigator

University of Oxford - Dr R A Hope (School of Geography and the Environment )

Oxford OX1 3QY

Point of contact

University of Oxford - Nancy Gladstone (Smith School of Enterprise and the Environment )

Oxford OX1 3QY

Originator

Rural Focus Ltd - Calvince Wara

P.O. Box 1011-10400 Nanyuki Kenya

Originator

Rural Focus Ltd - Mike Thomas

P.O. Box 1011-10400 Nanyuki Kenya

Originator

Water Resources Management Authority - David Shokut

Kenya

Originator

University of Nairobi - Dan Olago (Department of Geology )

Nairobi Kenya

Originator

University of Nairobi - Julius Odida

Maintenance and update frequency: notApplicable notApplicable

GEMET - INSPIRE themes

Geology

BGS Thesaurus of Geosciences

Hydrogeology , Geophysics , Geology

Keywords

NERC_DDC

Access constraints: otherRestrictions Other restrictions

Use constraints: otherRestrictions Other restrictions

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: Either: (i) the dataset is made freely available, e.g. via the Internet, for a restricted category of use (e.g. educational use only); or (ii) the dataset has not been formally approved by BGS for access and use by external clients under licence, but its use may be permitted under alternative formal arrangements; or (iii) the dataset contains 3rd party data or information obtained by BGS under terms and conditions that must be consulted in order to determine the permitted usage of the dataset. Refer to the BGS staff member responsible for the creation of the dataset if further advice is required. He / she should be familiar with the composition of the dataset, particularly with regard to 3rd party IPR contained in it, and any resultant use restrictions. This staff member should revert to the IPR Section (ipr@bgs.ac.uk ) for advice, should the position not be clear.

Metadata language: English English

Topic category

Geoscientific information

Geographic identifier

Date ( Revision ): 2009

Geographic identifier

KEN

Date ( Revision ): 2009

Geographic identifier

KENYA [id=687000]

Date ( Creation ): 1979

Reference system identifier

OGP / urn:ogc:def:crs:EPSG::32737

Date ( Revision ): 2005

Distribution format

MS Excel ()

OnLine resource: https://www.bgs.ac.uk/services/ngdc/accessions/index.html#item114529

OnLine resource: http://reshare.ukdataservice.ac.uk/853667/

Hierarchy level: dataset Dataset

Other: dataset

Conformance result

Date ( Publication ): 2011

Explanation: See the referenced specification

Pass: false

Conformance result

Date ( Publication ): 2010-12-08

Explanation: See http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2010:323:0011:0102:EN:PDF

Pass: false

Statement: Direct Current (DC) electrical resistivity method is commonly used to delineate aquifer composition, groundwater, bed-rock, fresh and salt intrusion (Robinson and Coruh, 1988; Burger, 1992; Telford et al. 1990; method detailed in Lowrie, 2007). VES was conducted in SSW-NNE direction parallel to the geological strike in the coastal area using ABEM SAS 1000 terrameter. Maximum current electrode separation was 1,000m. The array type was Schlumberger. Readings were repeated to get the value with the least standard deviation to increase data quality. Sites were identified in all the major geological formations and the survey conducted transverse to geological strikes. A total of thirty five (35) points were probed in a N-S orientation with current electrode separation of 500m. Potential was boosted at 32m, 80m and 250m during data acquisition to increase uniformity.