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Standards

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The population statistics COD standards and guidance are currently in development at the global level with UNFPA. The minimum standards identified in the current evaluation checklist enable data interoperability and harmonization. 

COD-PS Required Characteristics (minimum requirements in red)

Metadata

  • Source organization must be clearly identified, and acceptable for humanitarian use
  • Population data are endorsed by IM Network
  • The dataset must be able to be shared (at least once at the onset stage of an emergency)
  • P-codes from COD-PS match COD-AB (tables can link 1:1)

Tabular Attributes

  • Field names are clear and understandable
  • Field names used consistently across all Admin layers
  • Population breakdown exists for sex and age for each administrative unit (with sex disaggregation for every age cohort)
  • All values must be integers.
  • All values must be present
  • Sum of data matches the value of higher admin level
  • Data is checked for inconsistencies
  • Data is checked for outliers
  • P-codes are the unique identifiers used in the country (ideally government sourced)
  • P-codes are present and unique for each administrative unit
  • P-code attribution is consistent across all layers
  • P-codes for higher-level administrative units are included in lower levels
  • P-codes and feature names (and therefore feature counts) should conform to established and accepted administrative boundary datasets (COD-AB) - however, it may be that the COD-PS is the more reliable authority.

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Data source 

Advantage 

Disadvantage 

Purpose and process 

Landscan 

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World pop 

 

 

 

ESRI 

 

 

 

GHS Population Grid 

 

 

 

GPW v4 

 

 

 

Facebook population data 

 

 

 

Other 


 

 

Other 

 

 

 

Process

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The COD-PS involves the IMWG and follows the normal COD cycle.

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  • Government: the ideal data source; can help develop estimates; can help clarify links between COD-PS and COD - AB
  • UNFPA: work with the government on population data
  • UNHCR: to provide refugee population data
  • IOM: to provide IDP population data
  • Others as required

Considerations

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  • Leaving no one off the map A gridded population data report from a  wide range of experts: Key messages: 1) census data are still important, gridded population data are not a substitute for census data; 2) gridded population data are not error-free; 3) data users should consider a number of factors when selecting an appropriate dataset for their particular needs; 4) more validation work is needed to compare gridded population data estimates against authoritative data on population location.

Resources

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