Date (Publication)

2015-11-05

Identifier

CEH:EIDC: / 1426780471009

Identifier

https://catalogue.ceh.ac.uk/id/00895096-e083-498f-9a52-b7f9e3291125

Identifier

doi: / 10.5285/00895096-e083-498f-9a52-b7f9e3291125

Other citation details

Leach, D., Henville, P., Wyatt, R., Hewitt, E., Morrissey, I., Weller, J., Tindall, C.I., Bachiller-Jareno, N. (2015). Continuous measurements of conductivity, dissolved oxygen, pH, temperature and water level in rivers (2002-2007) [LOCAR]. NERC Environmental Information Data Centre 10.5285/00895096-e083-498f-9a52-b7f9e3291125

Maintenance and update frequency

notPlanned Not planned

Maintenance note

Dataset completed

GEMET - INSPIRE themes, version 1.0

• Environmental Monitoring Facilities

Access constraints

otherRestrictions Other restrictions

Other constraints

no limitations

Use constraints

otherRestrictions Other restrictions

Other constraints

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

Use constraints

otherRestrictions Other restrictions

Other constraints

© UK Centre for Ecology & Hydrology

Use constraints

otherRestrictions Other restrictions

Other constraints

If you reuse this data, you should cite: Leach, D., Henville, P., Wyatt, R., Hewitt, E., Morrissey, I., Weller, J., Tindall, C.I., Bachiller-Jareno, N. (2015). Continuous measurements of conductivity, dissolved oxygen, pH, temperature and water level in rivers (2002-2007) [LOCAR]. NERC Environmental Information Data Centre https://doi.org/10.5285/00895096-e083-498f-9a52-b7f9e3291125

Spatial representation type

textTable Text, table

Metadata language

EnglishEnglish

Character set

utf8 UTF8

Topic category

• Environment

Begin date

2002-08-30

End date

2007-04-12

Unique resource identifier

OSGB 1936 / British National Grid

Distribution format

• Comma-separated values (CSV) ()

OnLine resource

Download the data

Download a copy of this data

OnLine resource

Supporting information

Supporting information available to assist in re-use of this dataset

Hierarchy level

dataset Dataset

Other

dataset

Statement

Temperature, pH, conductivity and dissolved oxygen data were collected using YSI 6-Series multi-parameter water quality sondes. Each sonde had multiple sensors that read water quality data. Water level data were collected using Druck Pressure Transducers. The transducers were fully submersible high performance sensors that produced reliable and accurate water level measurements. After two weeks of deployment in the river the sondes were taken back to the laboratory for calibration checks, cleaning, changing the membrane on the oxygen electrode and recalibration. During their transportation and storage they were kept moist at all times by adding a few drops of deionised water in the containing bottle. On return to the laboratory, the outside of the sonde body was wiped to remove silt, etc. The electrode guard was removed and the body of the electrode rinsed, avoiding cleaning the surface of the electrodes. The sonde was then connected to the battery pack and computer and the calibration software launched. Then, in the corresponding calibration software menus, the specific conductance, conductivity, dissolved oxygen charge were activated and their post calibration values recorded in the post calibration form. Before the sondes could be returned to the field they needed to be recalibrated. First, the glass surface of the pH electrode was gently wiped with a cotton bud wetted in alcohol. The inside of the conductivity electrode was scrubbed with a small bottle brush then the sonde was rinsed with distilled water. The 'O' ring was removed and the plastic membrane from the oxygen electrode was replaced by a new one. The 'O' ring was then replaced. The new membrane needed at least 12 hours to condition before calibration. The sonde was therefore left in the transportation pot (containing moist sponge) until the next day before being calibrated. To calibrate the sonde, it was connected to the battery pack and the computer. From the calibration routine, in the sonde software menu, the dissolved oxygen charge was activated. Then dissolved oxygen, conductivity and pH were consecutively selected for calibration. The Catchment Service Team in each catchment was responsible for installing, maintaining and downloading the loggers on the YSI sondes and Druck pressure transducers at each site on a regular basis. Data are raw and have not been quality controlled nor corrected for instrument failure or instrument drift. A zip file containing box-and-whisker plots for each determinand, showing the range of values (median, inter-quartile range, 1.5 * inter-quartile range, outliers) recorded at each site is available to enable prospective users of the data to understand data quality. (For further details see the supporting documentation for this dataset)

File identifier

00895096-e083-498f-9a52-b7f9e3291125 XML

Metadata language

EnglishEnglish

Character set

ISO/IEC 8859-1 (also known as Latin 1) 8859 Part 1

Hierarchy level

dataset Dataset

Hierarchy level name

dataset

Date stamp

2025-02-04T14:50:24

Metadata standard name

UK GEMINI

Metadata standard version

2.3