Ground control points for investigating mass loss processes on Khumbu Glacier, Nepal (NERC grant NE/L002574/1)

These data consist of a spreadsheet containing 557 ground control points (GCPs) collected in the Everest region of Nepal between October 2015 and October 2016. GCPs were collected using a Leica GS10 differential Global Positioning System (dGPS), post-processed against base station data at Syangboche. These final data have sub-centimetre accuracy (in x, y and z) in all cases. Point positions are heavily concentrated around meltwater ponds on the glacier surface, and prominent features around the glacier margin. These data will be used by PhD students and staff in the School of Geography, University of Leeds, to provide ground control for fine-resolution satellite imagery and Structure-from-Motion surveys to assess mass loss processes on Khumbu Glacier.

Date (Creation): 2016-10

Identifier: http://data.bgs.ac.uk/id/dataHolding/13607143

Point of contact

University of Leeds - Dr Duncan Quincey ( School of Geography )

Leeds , LS2 9JT ,

Point of contact

University of Leeds - Owen King ( School of Geography )

Leeds , LS2 9JT ,

Point of contact

University of Leeds - Scott Watson ( Department of Geography )

Leeds , LS2 9JT ,

Maintenance and update frequency: notApplicable notApplicable

GEMET - INSPIRE themes, version 1.0

Geology

BGS Thesaurus of Geosciences

Glaciers
Glacial geology
Ground control
NGDC Deposited Data

dataCentre

NGDC Deposited Data

Keywords

NERC_DDC

Access constraints: otherRestrictions Other restrictions

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 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: The dataset is made available to external clients under BGS Digital Data Licence terms and conditions. Revert to the IPR Section (iprdigital@bgs.ac.uk ) if further advice is required with regard to permitted usage.

Metadata language: EnglishEnglish

Topic category

Geoscientific information

Geographic identifier

MOUNT EVEREST REGION [id=400700]

Date (Creation): 1979

Begin date: 2015-10

End date: 2016-10

Supplemental Information: The margins and surface of Khumbu Glacier (UTM 45N 482619 m E, 3092232 m N). The margins of Ama Dablam Glacier (UTM 45N 488162 m E, 3085075 m N).

Unique resource identifier: WGS 84 / UTM zone 45N (EPSG::32645)

Distribution format

OnLine resource: Data ( WWW:DOWNLOAD-1.0-http--download )

Hierarchy level: dataset Dataset

Other: dataset

Conformance result

Date (Publication): 2011

Explanation: See the referenced specification

Pass: No

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: No

Statement: 557 ground control points (GCPs) collected around Khumbu and Ama Dablam Glaciers during field campaigns in October/November 2015, May/June 2016, and October 2016. GCPs were collected using Leica GS10s in rapid-static mode. GCPs were surveyed in a non-uniform pattern along the margins of respective glaciers or on the surface. GCPs on the margin of glaciers were collected on large boulders or path junctions. Those collected on the glacier were marked using temporary markers for inclusion into a SfM workflow. Base station data were post-processed against the Syangboche permanent station (UTM 45N 471683 m E, 3076653 m N) located ~ 20 km from our field site using Global Positioning System (GPS) and GLObal NAvigation Satellite System (GLONASS) satellites. Our field GCPs were then adjusted with reference to the field base station data following a relative carrier phase positioning strategy. Elevations are to Earth Gravitational Model 2008 (EGM2008).