Date (Publication)

2020-07-24

Citation identifier

https://catalogue.ceh.ac.uk/id/86f17d61-141f-4500-9aa5-26a82aef0b33

Citation identifier

doi: / 10.5285/86f17d61-141f-4500-9aa5-26a82aef0b33

Other citation details

Baronas, J.J., Tipper, E.T., Bickle, M.J., Stevenson, E.I., Hilton, R.G. (2020). Flow velocity, discharge, and suspended sediment compositions of the Irrawaddy and Salween Rivers, 2017-2019. NERC Environmental Information Data Centre 10.5285/86f17d61-141f-4500-9aa5-26a82aef0b33

Point of contact

Organisation name	Individual name	Electronic mail address	Role
University of Cambridge	Baronas, J.J.	jotautas.baronas@gmail.com	Author
University of Cambridge	Tipper, E.T.	ett20@cam.ac.uk	Author
University of Cambridge	Bickle, M.J.	mb72@cam.ac.uk	Author
University of Cambridge	Stevenson, E.I.	eis22@cam.ac.uk	Author
Durham University	Hilton, R.G.	r.g.hilton@durham.ac.uk	Author
University of Cambridge	Baronas, J.J.	jotautas.baronas@gmail.com	Point of contact
NERC EDS Environmental Information Data Centre		info@eidc.ac.uk	Custodian
NERC Environmental Information Data Centre		info@eidc.ac.uk	Publisher
University of Cambridge		enquiries@enterprise.cam.ac.uk	Owner
Durham University		info@dcc.ac.uk	Owner

Keywords

• Environmental survey
• Water quality
• Hydrology
• Modelling

• Irrawaddy river

• Salween river

• Myanmar

• Discharge

• Suspended sediment concentrations

• Particle size

• Organic carbon

Access constraints

Other restrictions

Other constraints

no limitations

Use constraints

Other restrictions

Other constraints

This resource is available under the terms of the Open Government Licence

Use constraints

Other restrictions

Other constraints

If you reuse this data, you should cite: Baronas, J.J., Tipper, E.T., Bickle, M.J., Stevenson, E.I., Hilton, R.G. (2020). Flow velocity, discharge, and suspended sediment compositions of the Irrawaddy and Salween Rivers, 2017-2019. NERC Environmental Information Data Centre https://doi.org/10.5285/86f17d61-141f-4500-9aa5-26a82aef0b33

Spatial representation type

Text, table

Distance

100  urn:ogc:def:uom:EPSG::9001

Language

English

Character set

UTF8

Topic category

• Inland waters

Begin date

2017-08-23

End date

2019-05-21

Unique resource identifier

WGS 84

Distribution format

Name	Version
Comma-separated values (CSV)
Text

Distributor contact

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Environmental Information Data Centre		info@eidc.ac.uk	Distributor

OnLine resource

Protocol	Linkage	Name
	https://catalogue.ceh.ac.uk/datastore/eidchub/86f17d61-141f-4500-9aa5-26a82aef0b33	Download the data

OnLine resource

Protocol	Linkage	Name
	https://data-package.ceh.ac.uk/sd/86f17d61-141f-4500-9aa5-26a82aef0b33.zip	Supporting information

Hierarchy level

Dataset

Other

dataset

Statement

Flow velocity was measured using an Acoustic Doppler Current Profiler (ADCP) Rio Grande II 1200 kHz (Teledyne Instruments). deployed on a moving boat. The ADCP was attached on a rigid frame close to the bow, in a down-facing orientation, and the transducer submerged at 40-60 cm depth. Data were collected while the boat crossed the river perpendicular to the flow. Boat position during the transect was recorded using an external GPS unit with horizontal accuracy of <5 m. Between 1 and 5 such transects were collected, depending on the site, with total discharge reproducibility typically better than 6%. Additional flow velocity data were collected during suspended sediment sampling in August 2018 and May 2019 while the boat was drifting with the current. ADCP data were collected and initially processed using WinRiver II software. The data were then exported and further processed using Velocity Mapping Toolbox. Using multiple river cross-sectional transects, a mean cross-section was created for each sampling date, ensuring it was perpendicular to the river channel, and calculating the average stream-wise flow velocity field across the river channel. The data were then additionally processed in MATLAB 2019b, filling data gaps, removing erroneous outlier data, and calculating total discharge. Both the raw flow velocity (WinRiver-exported) data and the processed flow velocity and discharge data are included in this dataset. Depth profiles of suspended sediments were collected in August 2017, August 2018, and May 2019 at both sites. Only surface sediment samples were collected in February 2018. Sediment samples were collected at various depths using a modified Van Dorn style depth sampler while the boat was drifting with the flow. Samples were transferred into 10 L sterile polyethylene bags, ensuring complete transfer of all sediment particles. The bags were weighed and the samples filtered within 24h using 0.2μm polyethersulfone (PES) membrane and freeze-dried back in the lab. Particle size distributions of dried samples were measured using laser diffractometry. The organic carbon concentration (as weight %) was measured using coupled elemental analysis - isotope ratio mass spectrometry (EA-IRMS) after carbonate removal using liquid HCl. All methods are described in detail in the supporting documentation.

Metadata

File identifier

86f17d61-141f-4500-9aa5-26a82aef0b33 XML

Metadata language

English

Character set

8859 Part 1

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2025-11-21T10:08:28

Metadata standard name

UK GEMINI

Metadata standard version

2.3

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS Environmental Information Data Centre		info@eidc.ac.uk	Point of contact