Tsunami trimlines identified across different islands of the Tonga archipelago (NERC Grant NE/X002454/1)

Tsunami trimlines identified across different islands of the Tonga archipelago. Trimlines have been used as a reference land feature following the January 2022 Tonga tsunami event that ripped off vegetation and built-up areas. Trimlines are distinctive limits between an area with sand coverage, vegetation destruction, and soil erosion on the one hand, and the unaffected natural vegetation on the other. This distinction provides a good landmark to map the inundation width and the landward extension of tsunami runup. In this case, the trimlines have been manually delineated by BGS - Earth Observation team using different high-resolution satellite datasets both optical (KompSat, Planet, Pleiades, WorldView) and radar (TerraSAR-X). Trimlines are well known from task-force publications documenting recent tsunami detection efforts and provide key information to support tsunami triggering mechanism models. For more info, see https://www.usgs.gov/media/images/tsunami-terms and Scheffers et al. (2012), https://doi.org/10.1007/s11069-010-9691-6

Default

Identification info

Metadata Language
English (en)
Dataset Reference Date ()
2022-11-24
Identifier
http://data.bgs.ac.uk/id/dataHolding/13608013
  British Geological Survey - Enquiries
Environmental Science Centre, Nicker Hill, Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom
0115 936 3143
0115 936 3276
  British Geological Survey - Enquiries
Environmental Science Centre, Nicker Hill, Keyworth , NOTTINGHAM , NOTTINGHAMSHIRE , NG12 5GG , United Kingdom
0115 936 3143
0115 936 3276
  British Geological Survey - Enquiries
  British Geological Survey - Enquiries
Maintenance and update frequency
notApplicable
GEMET - INSPIRE themes
BGS Thesaurus of Geosciences
  • Tsunamis
  • Satellite imagery
Keywords
  • NERC_DDC
Limitations on Public Access
otherRestrictions
Other constraints
licenceOGL
Other constraints
Available under the Open Government Licence subject to the following acknowledgement accompanying the reproduced NERC materials "Contains NERC materials ©NERC [year]"
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]"
Spatial representation type
vector
Topic category
  • Geoscientific information
Extent
TO

Dataset Reference Date ()
2009

Extent
TON

Dataset Reference Date ()
2009

Extent
TONGA [id=936000]

Dataset Reference Date ()
1979

N
S
E
W


Begin date
2022-01-16
End date
2022-04-25
 

Spatial Reference System

No information provided.

Distribution Information

Data format
  • Shapefile ()

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
We manually analysed high-resolution optical (KompSat, Planet, Pleiades, WorldView) and radar (TerraSAR-X) and draw the lines.

Metadata

File identifier
f19549a8-8d3f-5588-e053-0937940a790b XML
Metadata Language
English (en)
Resource type
dataset
Metadata Date
2023-05-24
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
 
 

Overviews

N
S
E
W



Publishing Body

Share on social sites

Access the portal

Associated resources (if any)

Not available