NERC Data Catalogue Service
Water debt for the annual production of nine major crops globally at 5 arcmin resolution for the year 2000
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Identification info
- Metadata Language
- English (en)
- Character set
- utf8
- Dataset Reference Date ()
- 2023-01-26
- Identifier
- doi: / 10.5285/45cb218c-b050-4ee8-8c87-73d3895a111f
- Other citation details
- Tuninetti, M., Tamea, S., Dalin, C. (2023). Water debt for the annual production of nine major crops globally at 5 arcmin resolution for the year 2000. NERC EDS Environmental Information Data Centre 10.5285/45cb218c-b050-4ee8-8c87-73d3895a111f
- GEMET - INSPIRE themes, version 1.0 ()
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- Hydrography
- GEMET - Concepts, version 4.1.3
- Keywords
- Limitations on Public Access
- otherRestrictions
- Other constraints
- no limitations
- Use constraints
- otherRestrictions
- Use constraints
- otherRestrictions
- Other constraints
- If you reuse this data, you should cite: Tuninetti, M., Tamea, S., Dalin, C. (2023). Water debt for the annual production of nine major crops globally at 5 arcmin resolution for the year 2000. NERC EDS Environmental Information Data Centre https://doi.org/10.5285/45cb218c-b050-4ee8-8c87-73d3895a111f
- Spatial representation type
- grid
- Distance
- 6548 urn:ogc:def:uom:EPSG::9001
- Topic category
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- Inland waters
- Farming
))
- Begin date
- 2000-01-01
- End date
- 2000-12-31
- Code
- WGS 84
Distribution Information
- Data format
-
-
Text (txt)
()
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Text (txt)
()
- Resource Locator
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- Quality Scope
- dataset
- Other
- dataset
Report
- Dataset Reference Date ()
- 2010-12-08
- Statement
- Definition of the Water Debt (WD) Repayment Time: The WD is calculated, at a 5' × 5' spatial resolution for the production of year 2000, as the ratio of the cell annual water footprint, WFs, cr, l, which is specific for each source s, crop cr, and location l, and the average renewable volume of water annually available in the cell. The annual renewability rate is calculated as a long-term average along the period 1987–2013. In this way, we obtain an average measure of the water availability in the cell, which smooths out potential extremely dry or extremely wet years. The water footprint (WF) estimates are computed for year 2000 because this is the most referenced year in agricultural datasets available in the literature. The WFs, cr, l estimate is obtained as the product of the local crop water footprint (CWF) by source, (CWFs, cr, l, expressed in cubic meters per ton of crop), and the annual crop production (Pr), (Pcr, l, expressed in tons of crop). The total WD of the sources, arising from all the crops cultivated in the grid cell, WDs, l, equals the sum of debts generated by each crop. Owing to the simultaneous replenishment of soil water, surface water, and groundwater by precipitation, the crop WD across the threes sources, WDcr, l, is given by the maximum WDs, l, cr value across sources s.
Metadata
- File identifier
- 45cb218c-b050-4ee8-8c87-73d3895a111f XML
- Metadata Language
- English (en)
- Character set
- ISO/IEC 8859-1 (also known as Latin 1)
- Resource type
- dataset
- Hierarchy level name
- dataset
- Metadata Date
- 2023-11-10T09:29:53
- Metadata standard name
- UK GEMINI
- Metadata standard version
- 2.3
