Effective Drought Index (EDI)
This index can be used to determine and characterize meteorological, hydrological, andagricultural drought hazards on a daily basis. (source WMO and GWP, 2016)
Simple
- Date (Publication)
- Date
- Presentation form
- Digital map
- Purpose
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Mapping meteorological drought hazard, Mapping hydrological drought hazard, Mapping agricultural drought hazard
- Credit
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N/A
- Maintenance and update frequency
- Daily
- Update scope
- Indices
- Theme
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Type: Indices
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Type of Drought: Meteorological, Agricultural, Hydrological Drought
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Application: Mapping meteorological drought hazard, Mapping hydrological drought hazard, Mapping agricultural drought hazard
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Extent: Not relevant
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- Use limitation
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Daily precipitation.
- Access constraints
- Intellectual property rights
- Use constraints
- Other restrictions
- Date
- Spatial representation type
- Vector
Spatial resolution
- Distance
- Aggregation period: N/A
- Distance
- Spatial scale: Not relevant
Spatial resolution
- Metadata language
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eng
- Description
-
Not relevant
))
- Begin date
- Not relevant
- End date
- Not relevant
- Date (Revision)
- Reference system identifier
- EPSG / Spatial_reference / 7.9
- Distribution format
-
-
(
Various
)
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(
Various
)
- OnLine resource
- http://www.droughtmanagement.info/indices/
- Hierarchy level
- Series
- Description
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Not relevant
Temporal Extent
Vertical extent
- Dataset
-
Mapping meteorological drought hazard, Mapping hydrological drought hazard, Mapping agricultural drought hazard
Non quantitative attribute accuracy
- Measure description
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N/A
- Evaluation Method
- Direct internal
Conformance result
- Date (Revision)
- Pass
Conformance result
- Date
Completeness omission
- Name of measure
-
Codelist omission
- Evaluation Method
- Direct internal
Conformance result
- Date (Revision)
- Pass
- Statement
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Data requirements to use: Daily precipitation.;
Data used: N/A;
Data format: N/A;
Data access: N/A;
Concise description:
Uses daily precipitation data to develop and compute several parameters: effective precipitation (EP), daily mean EP, deviation of EP (DEP) and the standardized value of DEP. These parameters can identify the onset and end of water deficit periods. Using the input parameters, EDI calculations can be performed for any location in the world in which the results are standardized for comparison, giving a clear definition of the onset, ending and duration of drought. At the time of EDI’s development, most drought indices were being calculated using monthly data, so the switch to daily data was unique and important to the utility of the index.
- File identifier
- a4d1066d-360d-49f7-b26f-6ebe4b8255c3 XML
- Metadata language
-
eng
- Character set
- UTF8
- Hierarchy level
- Indices
- Hierarchy level name
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Effective Drought Index (EDI)
- Date stamp
- 2022-02-07T11:04:51
- Metadata standard name
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ISO 19115:2003/19139
- Metadata standard version
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1.0
- Dataset URI
Overviews
Spatial extent
Provided by
