Standardized Groundwater Index (SGI)
This index can be used to determine and characterize groundwater drought hazards.
Simple
- Date (Publication)
- Date
- Presentation form
- Digital map
- Purpose
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Mapping hydrological drought hazard
- Credit
-
N/A
- Maintenance and update frequency
- Daily
- Update scope
- Indices
- Theme
-
-
Type: Indices
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Type of Drought: Hydrological Drought
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Application: Mapping hydrological drought hazard
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Extent: Not relevant
-
- Use limitation
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Groundwater levels
- Access constraints
- Intellectual property rights
- Use constraints
- Other restrictions
- Date
- Spatial representation type
- Vector
Spatial resolution
- Distance
- Aggregation period: Not relevant
- Distance
- Spatial scale: Not relevant
Spatial resolution
- Metadata language
-
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
)
-
(
Various
)
- OnLine resource
- http://www.hydrol-earth-syst-sci.net/17/4769/2013/
- Hierarchy level
- Series
- Description
-
Not relevant
Temporal Extent
Vertical extent
- Dataset
-
Mapping hydrological 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
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Data requirements to use: Groundwater levels;
Data used: Not relevant;
Data format: N/A;
Data access: N/A;
Concise description:
The SGI builds on the Standardized Precipitation Index (SPI) to account for differences in the form and characteristics of groundwater level and precipitation time series. The SGI is estimated using a non-parametric normal scores transform of groundwater level data for each calendar month. These monthly estimates are then merged to form a continuous index.
- File identifier
- d2fbf0c3-14e4-4e29-ac11-c64c999cbb5c XML
- Metadata language
-
eng
- Character set
- UTF8
- Hierarchy level
- Indices
- Hierarchy level name
-
Standardized Groundwater Index (SGI)
- Date stamp
- 2022-02-07T11:04:24
- Metadata standard name
-
ISO 19115:2003/19139
- Metadata standard version
-
1.0
Overviews
Spatial extent
Provided by
