Groundwater levels, salinity, pH, and rainfall on the Indian Ocean island of Karainagar, Sri Lanka, 2019–2024
[This dataset is embargoed until August 31, 2026]. This dataset includes measurements of groundwater levels, salinity, and pH collected from 36 dug wells, along with rainfall data, on the Indian Ocean island of Karainagar, Sri Lanka, spanning the period from 2019 to 2024. Karainagar, the study area, is one of seven islands located off the coast of Jaffna in northern Sri Lanka. This rectangular island is bounded on three sides by the Palk Strait, while the fourth side faces the Jaffna Lagoon and is connected to the mainland by a causeway. Karainagar covers an area of approximately 22 km², including inland water bodies. Thirty-six dug wells—used for agricultural, domestic, Kovil (Temple), and public purposes—were inventoried. These wells were monitored to track groundwater levels and key physicochemical parameters, specifically salinity (measured as electrical conductivity, EC) and pH, on Karainagar Island. Full details about this dataset can be found at
https://doi.org/10.5285/ba22d53b-4eee-48a1-b6f3-653d252c0358
Simple
- Date (Publication)
- 2025-05-28
- Identifier
- doi: / 10.5285/ba22d53b-4eee-48a1-b6f3-653d252c0358
- Other citation details
- Karthiga, I., Rameshwaran, P., Ketheesan, B., Sriskandarajah, N. (2025). Groundwater levels, salinity, pH, and rainfall on the Indian Ocean island of Karainagar, Sri Lanka, 2019–2024. NERC EDS Environmental Information Data Centre 10.5285/ba22d53b-4eee-48a1-b6f3-653d252c0358
Author
Swedish University of Agricultural Sciences
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Sriskandarajah, N.
https://orcid.org/0000-0002-9429-6767
- GEMET - INSPIRE themes, version 1.0
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- Environmental Monitoring Facilities
- Access constraints
- otherRestrictions Other restrictions
- Other constraints
- Embargoed
- Use constraints
- otherRestrictions Other restrictions
- Use constraints
- otherRestrictions Other restrictions
- Other constraints
- If you reuse this data, you should cite: Karthiga, I., Rameshwaran, P., Ketheesan, B., Sriskandarajah, N. (2025). Groundwater levels, salinity, pH, and rainfall on the Indian Ocean island of Karainagar, Sri Lanka, 2019–2024. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/ba22d53b-4eee-48a1-b6f3-653d252c0358
- Spatial representation type
- textTable Text, table
- Metadata language
- EnglishEnglish
- Character set
- utf8 UTF8
- Topic category
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- Environment
- Inland waters
- Utilities communication
- Begin date
- 2019-01-01
- End date
- 2024-12-31
N
S
E
W
- Unique resource identifier
- WGS 84
- Distribution format
-
-
Comma-separated values (CSV)
()
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Comma-separated values (CSV)
()
- Hierarchy level
- dataset Dataset
- Other
- dataset
Conformance result
- Date (Publication)
- 2010-12-08
- Statement
- Groundwater levels and well dimensions (kerb height, diameter/width, and bottom elevation) were measured using a measuring tape. The locations of the dug wells and ground elevations relative to Mean Sea Level (MSL) were determined using a Global Positioning System (GPS) and land surveys. Salinity (measured as electrical conductivity, EC) and pH were recorded using a Hach HQ40D multi-parameter meter. Daily rainfall time series data were obtained from the records of the Agrarian Services Centre (ASC) in Karainagar.
- File identifier
- ba22d53b-4eee-48a1-b6f3-653d252c0358 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
- 2025-11-13T16:12:51
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
Point of contact
NERC EDS Environmental Information Data Centre
Lancaster Environment Centre, Library Avenue, Bailrigg
,
Lancaster
,
LA1 4AP
,
UK
https://eidc.ac.uk/
Overviews
Spatial extent
N
S
E
W
Provided by
Associated resources
Not available
NERC Data Catalogue Service