BGS Hosted Metadata
River channel migration and characteristics from 1988 to 2019 at 74 bridges in the Philippines
The data set contains the Philippines bridge inventory, river migration geodatabase and source code to assess active river channel change (i.e. planform adjustments) using Landsat 5, 7 and 8 products in Google Earth Engine. The data set contains hydro-morphological and bridge characteristics for 74 bridges (> 200 m deck length) in the Philippines from 1988 to 2019 and is available in .csv and .shp format. For a given region of interest (ROI), the code will extract active river channel masks, calculate similarity coefficients between active river channel masks at decadal intervals and calculate active widths and centreline statistics. The code was used by Boothroyd et al. (in press) to investigate decadal river migration at critical bridge infrastructure in the Philippines. Full details about this dataset can be found at https://doi.org/10.5285/2efd24f9-e745-4f54-8bbd-6439b0ad93e5
Simple
- Date (Publication)
- 2020-12-17
- Citation identifier
- https://catalogue.ceh.ac.uk/id/2efd24f9-e745-4f54-8bbd-6439b0ad93e5
- Citation identifier
- doi: / 10.5285/2efd24f9-e745-4f54-8bbd-6439b0ad93e5
- Other citation details
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Boothroyd, R.J., Williams, R.D., Hoey, T.B., Tolentino, P.L.M., Yang, X. (2020). River channel migration and characteristics from 1988 to 2019 at 74 bridges in the Philippines. NERC Environmental Information Data Centre 10.5285/2efd24f9-e745-4f54-8bbd-6439b0ad93e5
- Point of contact
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Organisation name Individual name Electronic mail address Role University of Glasgow Boothroyd, R. Point of contact University of Glasgow Boothroyd, R.J. Author University of Glasgow Williams, R.D. Author Brunel University London
Hoey, T.B. Author University of the Philippines Tolentino, P.L.M.
Author University of North Carolina
Yang, X.
Author NERC EDS Environmental Information Data Centre Custodian NERC Environmental Information Data Centre Publisher University of Glasgow Owner
- Access constraints
- Other restrictions
- Other constraints
- no limitations
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If you reuse this data, you should cite: Boothroyd, R.J., Williams, R.D., Hoey, T.B., Tolentino, P.L.M., Yang, X. (2020). River channel migration and characteristics from 1988 to 2019 at 74 bridges in the Philippines. NERC Environmental Information Data Centre https://doi.org/10.5285/2efd24f9-e745-4f54-8bbd-6439b0ad93e5
- Spatial representation type
- Vector
- Distance
- 5 urn:ogc:def:uom:EPSG::9001
- Language
- English
- Character set
- UTF8
- Topic category
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- Structure
- Inland waters
- Begin date
- 1988-01-01
- End date
- 2019-12-31
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- Unique resource identifier
- WGS 84
- Distribution format
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Name Version Comma-separated values (CSV)
Shapefile
TIFF
- Distributor contact
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre
Distributor
- OnLine resource
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Protocol Linkage Name https://catalogue.ceh.ac.uk/datastore/eidchub/2efd24f9-e745-4f54-8bbd-6439b0ad93e5 Download the data
- OnLine resource
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Protocol Linkage Name https://data-package.ceh.ac.uk/sd/2efd24f9-e745-4f54-8bbd-6439b0ad93e5.zip Supporting information
- Hierarchy level
- Dataset
- Other
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dataset
Conformance result
- Title
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Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services
- Date (Publication)
- 2010-12-08
- Statement
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Bridge characteristics were derived from a geospatial database of Philippine bridges retrieved in April 2020 from the Detailed Bridge Inventory Application (DPWH, 2020). The database was filtered to include only permanent bridges where the bridge deck length was equal to or greater than 200 m (n = 256). A visual inspection was performed to ensure that bridges were located at contemporary river crossings (n = 182) and only those bridges where the active river channel width exceeded 150 m (equivalent to five Landsat pixels) were retained for analysis (n = 74). Stream network and geomorphology characteristics were derived from a nationwide digital elevation model (DEM) acquired in 2013 and generated through airborne Interferometric Synthetic Aperture Radar, with a 5 m spatial resolution and 1 m root-mean-square error vertical accuracy (Grafil and Castro, 2014) was used for topographic analysis and extraction of the stream network. Google Earth Engine (GEE) was used to extract active river channel masks from Landsat 5, 7 and 8 satellite imagery. The workflow contained three main processing steps: (i) cloud masking and temporal compositing; (ii) active river channel classification; and, (iii) cleaning and image export.
Metadata
- File identifier
- 2efd24f9-e745-4f54-8bbd-6439b0ad93e5 XML
- Metadata language
- English
- Character set
- 8859 Part 1
- Hierarchy level
- Dataset
- Hierarchy level name
-
dataset
- Date stamp
- 2025-03-21T13:22:41
- Metadata standard name
- UK GEMINI
- Metadata standard version
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2.3
- Metadata author
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Organisation name Individual name Electronic mail address Role NERC EDS Environmental Information Data Centre Point of contact
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