Date (Publication)

2023-01-26

Identifier

https://catalogue.ceh.ac.uk/id/45cb218c-b050-4ee8-8c87-73d3895a111f

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

• Hydrography

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no limitations

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

Use constraints

otherRestrictions Other restrictions

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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 Grid

Distance

6548  urn:ogc:def:uom:EPSG::9001

Metadata language

EnglishEnglish

Character set

utf8 UTF8

Topic category

• Inland waters
• Farming

Begin date

2000-01-01

End date

2000-12-31

Unique resource identifier

WGS 84

Distribution format

• Text (txt) ()

OnLine resource

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Supporting information

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

Hierarchy level

dataset Dataset

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dataset

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.

File identifier

45cb218c-b050-4ee8-8c87-73d3895a111f 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

2025-03-21T09:34:15

Metadata standard name

UK GEMINI

Metadata standard version

2.3