Standardized Precipitation Evapotranspiration Index (SPEI)

This index can be used to determine and characterize meteorological, hydrological and agricultural drought hazards on a monthly basis. (source WMO and GWP, 2016)

Simple

Date (Publication)
Date
Custodian
  N/A - N/A ( )
http://www.droughtmanagement.info/indices/
Presentation form
Digital map
Purpose

Mapping meteorological drought hazard, Mapping hydrological drought hazard, Mapping agricultural drought hazard
Credit

N/A
Custodian
  N/A, N/A
Maintenance and update frequency
Daily
Update scope
Indices
Theme

  • Type: Indices

  • Type of Drought: Meteorological, Agricultural, Hydrological Drought

  • Application: Mapping meteorological drought hazard, Mapping hydrological drought hazard, Mapping agricultural drought hazard

  • Extent: Not relevant
Use limitation

Monthly precipitation and temperature data. A serially complete record of data is required with no missing months.
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

No information provided.
Metadata language

eng
Description

Not relevant
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W
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Begin date
Not relevant
End date
Not relevant
Date (Revision)
Reference system identifier
EPSG / Spatial_reference / 7.9
Distribution format
  • ( Various )

OnLine resource
http://www.droughtmanagement.info/indices/
Hierarchy level
Series
Description

Not relevant
N
S
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W
thumbnail


Temporal Extent

No information provided.

Vertical extent

Dataset

Mapping meteorological drought hazard, Mapping hydrological drought hazard, Mapping agricultural drought hazard

Non quantitative attribute accuracy

Measure description

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

Data requirements to use: Monthly precipitation and temperature data. A serially complete record of data is required with no missing months.;

Data used: N/A;

Data format: N/A;

Data access: N/A;


Concise description:

As a relatively new drought index, SPEI uses the basis of SPI but includes a temperature component, allowing the index to account for the effect of temperature on drought development through a basic water balance calculation. SPEI has an intensity scale in which both positive and negative values are calculated, identifying wet and dry events. It can be calculated for time steps of as little as 1 month up to 48 months or more. Monthly updates allow it to be used operationally, and the longer the time series of data available, the more robust the results will be.
File identifier
b4a33b88-fab5-4971-8379-af08c02f54ba XML
Metadata language

eng
Character set
UTF8
Hierarchy level
Indices
Hierarchy level name

Standardized Precipitation Evapotranspiration Index (SPEI)
Date stamp
2022-02-07T11:04:19
Metadata standard name

ISO 19115:2003/19139
Metadata standard version

1.0
Custodian
  N/A - N/A ( )
http://www.droughtmanagement.info/indices/
Dataset URI

http://www.droughtmanagement.info/indices/

 
 

Overviews

overview overview
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overview
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Spatial extent

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Keywords

Application: Mapping meteorological drought hazard, Mapping hydrological drought hazard, Mapping agricultural drought hazard Extent: Not relevant Type of Drought: Meteorological, Agricultural, Hydrological Drought Type: Indices

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Associated resources

Not available