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Dataset

 

Hurricane Maria and Dominica: geomorphological change and infrastructure damage baseline surveys: Unmanned Aerial Vehicle (UAV) data processed using Structure from Motion

Update Frequency: Not Planned
Latest Data Update: 2019-04-21
Status: Completed
Online Status: ONLINE
Publication State: Citable
Publication Date: 2019-04-05
DOI Publication Date: 2019-04-05
Download Stats: last 12 months
Dataset Size: 253 Files | 134GB

Abstract

Topographical and orthophotograph data sets created using Structure from Motion (SfM) from Unmanned Aerial Vehicle (UAV) data, presented as Orthophotographs (image and world file), Digital Surface Models (DSM) (image and world file), and point clouds (LAS format) using EPSG 32620 projection. The data was collected at selected sites on Dominica, Caribbean in January/February 2018 as part of a NERC funded project (NE/RO16968/1) to conduct geomorphological change and infrastructure damage baseline surveys following hurricane Maria. The data was flown using either a DJI Phantom 3 or 4, as indicated by the file name. If the file name includes 'NoGCP' in the file name the data uses the internal GPS and altitude of the DJI UAV. This means the data is not positionally accurate in absolute terms and should not be used in direct comparison to other georeferenced data. If the file name includes 'GCP' then the data was georeferenced using ground control derived from UAV data provided by the University of Michigan. This data is deemed accurate in absolute terms. (World Bank. 2018 Aug 31; Geotechnical Engineering Research Report(UMGE-2018/01))

Citable as:  Schaefer, M.; Teeuw, R.; Day, S.; Weber, P.; Meredith, T. (2019): Hurricane Maria and Dominica: geomorphological change and infrastructure damage baseline surveys: Unmanned Aerial Vehicle (UAV) data processed using Structure from Motion. Centre for Environmental Data Analysis, 05 April 2019. doi:10.5285/6027950b3f214818b661e4e11245b1a8. https://dx.doi.org/10.5285/6027950b3f214818b661e4e11245b1a8
Abbreviation: Not defined
Keywords: UAV, UAS, hurricane, Structure from Motion, Maria

Details

Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data captured using DJI Phantom 3&4 in JPG format, lighting levels balanced in Adobe Lightroom CC Classic, processed using Agisoft PhotoScan 1.4 using version 6.2 of a Python script (https://github.com/gisportsmouth/PhotoScan-Automation-Script) developed for automatic processing of UAV data. The method involved using an automated gradual selection process.
Output in EPSG 32620.

File Format:
Data are Jpeg, TIF and LAS formatted.

Related Documents

 PhotoScan automation script

Process overview

This dataset was generated by instruments deployed on platforms as listed below.

Independent Instruments

DJI Phantom 3/DJI Phantom 4
Output Description

None

No variables found.

Coverage
Temporal Range
Start time:
2018-01-25T00:00:00
End time:
2018-02-02T00:00:00
Geographic Extent

 
15.5200°
 
-61.4500°
 
-61.2900°
 
15.1100°