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GIEWS Update-detail |
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GAUL 2007 available for downloading
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The GIEWS Workstation
team of the
EC-FAO Food Security Programme
has released the 2007 version of the Global Administrative
Unit Layers (GAUL).
In this new version, 26 countries have been updated
at country, province or district level. Updates have
been carried out either because more reliable and
accurate data
is available (Correction Mode) or because administrative
units changed (Updating mode). For details on the
methodology, please read the document GAUL_Doc01_Ver15.pdf
The characteristics of GAUL 2007 dataset are:
• the Level 0 (country), Level 1 (provinces) and Level
2 (districts) are provided with global layers. The
lower levels (level 3, level 4, level5), when available,
are carried out on individual country layers (e.g.
Burkina Faso, Myanmar, Madagascar, etc.)
• The country boundaries are compliant with the latest
version of the UNCS International Boundaries Map (version
5, November 2005)
• The coastal line is mostly compliant with the coast
of the International Boundary map delivered by UNCS,
except for some countries (e.g. Timor-Leste) where
it has been updated according to the satellite images
(e.g. Landsat ETM). For the next release of the GAUL
(GAUL 2008), the coastal line will be totally reviewed.
• Data might not be officially validated by authoritative
national sources and can not be distributed to the
general public. A disclaimer should always accompany
any use of the GAUL data (see GAUL_disclaimer.pdf)
• The country-maps copyrighted and validated by SALB
have been integrated into the GAUL Set layers. The
list of these countries is shown in the GAUL metadata.
According to the SALB data policy, for these countries,
the SALB codes have been added to the GAUL codes in
the attribute tables of the layers.
• The GAUL keeps track of administrative units that
has been changed, added
or dismissed in the past for political causes. Changes
implemented in different years are recorded in the
GAUL on different layers. For this reason the GAUL
product is not a single layer but a group of layers,
named “GAUL Set” (see
GAULSet.pdf)
This is the first release including also time
series of the administrative layers
(see GAULSet.pdf)
The layers can be downloaded from
Geonetwork at the site
http://www.fao.org/geonetwork/srv/en/main.search
Contacts:
Fabio Grita
Coordinator "GIEWS Workstation", GCP/INT/952/EC
ESCG, FAO
Tel: +39-06-57054262
Email: Fabio Grita
Michela Marinelli
Environmental Engineer - GIS Specialist,
ESCG, FAO
Tel: +39-06-57053496
Email: Michela Marinelli
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