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FEWS NET IDs (FNIDs)

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FEWS NET assigns FNIDs to new administrative units. Having a unique identifier for every administrative unit allows the query of specific administrative units. FEWS NET uses Microsoft Excel to organize the administration units and to create the FNIDs. 

Type of Shapefiles 

  • Administration Units (A codes)

  • Crop Regions (R codes)

  • Livelihood Zones (L code)

  • Food Security Classification Units (C codes)

All polygons are assigned a unique alpha-numeric FNID. The structure of these codes is explained below: 

Code Element 

Places Needed

Description 

ISO_CODE

2 Digits

Standard ISO 2 digit code

Version (year)

4 Digits

The effective year 

Type

1 Digit (letter)

A=Admin unit, C= Food security classification, L= Livelihood Zone, R= Crop region 

Level/type code

1 Digit

For Admin units, this is the location in the national admin hierarchy. See notes on the classification and the livelihood shapefiles. 

Level 1

2 Digits

Level 2

2 Digits

Level 3

2 Digits

Level 4

2 Digits

FEWS NET ID Structure: 

  1. 2-letter country code

  2. Year of the geographic unit set version

  3. Admin level number 

    1. For example Admin 1, Admin 2, Admin 3

  4.  Admin 1 Level ID in the 00, 01, 02 format 

  5.  Admin 2 level ID in the 00, 01, 02 format 

    1. Each individual Admin unit must have a unique ID at every level

    2. For example, in figure 1 below, Every Admin 1 has its own ID 

    3. then every Admin 2 that falls within each admin 1 has a unique ID

  6. Admin 2 ID resets when the Admin 2 falls under a new Admin1 

    1. In figure 1, you see the Admin 2 ID go from 06 for West Tigray to 01 for Zone 1 because the Admin 1 unit changed from Tigray to Afar

  7. Concatenate all the values together 

  8. This process can be applied to further Admin levels 

    1. For example, Admin 3, Admin 4

    2. Keep adding admin ID levels as necessary

 FEWS NET ID (FNID) Structure: 

  1. 2-letter country code

  2. Year when the intersect shapefiles is being created 

  3. Admin unit code

  4. LHZ code where the admin unit is located 

  5. Concatenate all the values together 

An example from Afghanistan, FEWS NET maps FIC data using the intersection of Admin 2 (districts) and livelihood zones. The FIC data mapping units FNIDs have the following structure: 

AF2018C3010108

Country: AF

Year:2018 

Class: C3 

Kabul admin 2 code: AF2017A20101

LHZ code: AF08

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