Date (Creation)

2022-11-02

Date (Revision)

2022-11-02

Date (Publication)

2022-11-02

Date (released)

2022-11-02

Edition

1.0

Unique resource identifier

https://doi.org/10.5285/3d7b47b5-eb0b-40d9-948a-1ae05bd62250

Codespace

doi

Unique resource identifier

GB/NERC/BAS/PDC/01676

Codespace

https://data.bas.ac.uk/

Unique resource identifier

NE/N011228/1

Codespace

award

Other citation details

Please cite this item as: Bentley, M., Smith, J., Jamieson, S., & Roberts, D. (2022). Pressure transducer (tidal) data for Blaso epishelf lake, Northeast Greenland July - August 2017 (Version 1.0) [Data set]. NERC EDS UK Polar Data Centre. https://doi.org/10.5285/3d7b47b5-eb0b-40d9-948a-1ae05bd62250

Credit

No credit.

Status

Completed

Point of contact

Organisation name	Individual name	Electronic mail address	Role
Durham University	Bentley, Michael J.		Author
British Antarctic Survey	Smith, James A.		Author
Durham University	Jamieson, Stewart S. R.		Author
Durham University	Roberts, David		Author
NERC EDS UK Polar Data Centre		PDCServiceDesk@bas.ac.uk	Point of contact

Maintenance and update frequency

As needed

Maintenance note

Completed

Global Change Master Directory (GCMD) Science Keywords

• EARTH SCIENCE > Hydrosphere > Surface Water > Lakes

Theme

• Epishelf lake

• Greenland

• Pressure Transducer

• Tide

Place

• Blaso, NE Greenland Arctic

GEMET - INSPIRE themes, version 1.0

• Hydrography

Access constraints

Other restrictions

Other constraints

no limitations to public access

Access constraints

Other restrictions

Other constraints

no limitations

Use constraints

License

Other constraints

Open Government Licence v3.0

Use constraints

Other restrictions

Other constraints

Data released under Open Government Licence V3.0:

Use constraints

Other restrictions

Other constraints

No restrictions apply

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Unique resource identifier

url

Codespace

url

Association Type

Cross reference

Spatial representation type

Text, table

Language

English

Character set

UTF8

Topic category

• Inland waters

Begin date

2017-07-25

End date

2017-08-12

Supplemental Information

It is recommended that careful attention be paid to the contents of any data, and that the author be contacted with any questions regarding appropriate use. If you find any errors or omissions, please report them to polardatacentre@bas.ac.uk.

Title

European Petroleum Survey Group (EPSG) Geodetic Parameter Registry

Date (Publication)

2008-11-12

Cited responsible party

Organisation name	Individual name	Electronic mail address	Role
European Petroleum Survey Group		EPSGadministrator@iogp.org	Publisher

Unique resource identifier

urn:ogc:def:crs:EPSG::3031

Version

6.18.3

Hierarchy level

Dataset

Statement

Methodology:

Over several weeks a VanWalt LevelSCOUT water pressure transducer was used to measure any tidal variation within the lake. This uses a silicon strain gauge to measure water pressure variations, with a manufacturer: cited accuracy of 0.05 percent full scale (FS) and a resolution of 0.0034 percent FS. Water pressure variations were corrected for barometric (atmospheric pressure) variations using measurements from a VanWalt BaroSCOUT instrument and the Aqua4Plus software package. The LevelSCOUT was secured to a stake submerged in the western end of the lake (79.59083 N, -22.6075 W), and the BaroSCOUT was secured to a stake on the lakeshore less than 50 m away. Overnight on 28/29th July 2017 the tidal pressure transducer stake was impacted by windblown lake ice floes. The transducer continued to record tidal information but with anomalously high-water depth readings due to the tilted stake. On 2nd August the lake ice had moved and the stake was re-positioned to the vertical at the same site. The tidal measurements are therefore presented as three measurement intervals: Interval 1 (25th July - 29th July), Interval 2 (29th July ? 2nd August), and Interval 3 (2nd August - 12th August).

The breakpoints of the record are:

Interval 1: Record 4 to Record 1273

Interval 2: Record 1275 to Record 2491

Interval 3: Record 2495 to 3475

Data headings are:

Record_number: sequential numbering

Device_date_time: timezone is UK

Local_date_time: Measurement times are all corrected by -3 hours to correct from UK (device time) to local Greenland time

Corrected_pressure_h2o: Pressure recorded by submerged transducer, corrected for atmospheric variations

Pressure_cm_h2o: pressure measurement on submerged LevelScout

Temperature_degC: temperature of water

SensorPressure_cm_h2o): air pressure from BaroScout used to correct LevelScout for air pressure variations

Barometric_date_time: time of barometric reading used to correct LevelScout

Data collection:

VanWalt LevelSCOUT

VanWalt BaroSCOUT

Aqua4Plus software package

Data quality:

The data are not tied to a benchmark. Over several weeks a VanWalt LevelSCOUT water pressure transducer was used to measure any tidal variation within the lake. This uses a silicon strain gauge to measure water pressure variations, with a manufacturer: cited accuracy of 0.05 percent full scale (FS) and a resolution of 0.0034 percent FS. Water pressure variations were corrected for barometric (atmospheric pressure) variations using measurements from a VanWalt BaroSCOUT instrument and the Aqua4Plus software package. The LevelSCOUT was secured to a stake submerged in the western end of the lake (79.59083 N, -22.6075 W), and the BaroSCOUT was secured to a stake on the lakeshore <50 m away. Overnight on 28/29th July 2017 the tidal pressure transducer stake was impacted by windblown lake ice floes. The transducer continued to record tidal information but with anomalously high-water depth readings due to the tilted stake. On 2nd August the lake ice had moved and the stake was re-positioned to the vertical at the same site. The tidal measurements are therefore presented as three measurement intervals: Interval 1 (25th July - 29th July), Interval 2 (29th July - 2nd August), and Interval 3 (2nd August -12th August).

The breakpoints of the record are:

Interval 1: Record 4 to Record 1273

Interval 2: Record 1275 to Record 2491

Interval 3: Record 2495-3475

Metadata

File identifier

3d7b47b5-eb0b-40d9-948a-1ae05bd62250 XML

Metadata language

English

Character set

UTF8

Hierarchy level

Dataset

Hierarchy level name

dataset

Date stamp

2022-11-02

Metadata standard name

ISO 19115 Geographic Information - Metadata

Metadata standard version

ISO 19115:2003(E)

Metadata author

Organisation name	Individual name	Electronic mail address	Role
NERC EDS UK Polar Data Centre		polardatacentre@bas.ac.uk	Point of contact