The full resolution dataset of roads have been produced from visual interpretation of digitally enhanced LANDSAT TM images (Bands 4,3,2) acquired mainly in the year 1999.

The Soil and Terrain Database Map of East Africa is a computer system for the storage, display, interpretation and analysis of the Soil Map of East Africa at scale 1:1.000.000. The system consists of the soil and terrain database with corresponding soil maps, that are accessed by the programme for visualization in different viewer formats. Various interactive querying and selection tools provide easy access to specific parts of the database for display as thematic map, data browser or data entry form.

The full resolution dataset of towns was developed from data from the National Imagery and Mapping Agency (NIMA).

The rivers have been produced from visual interpretation of digitally enhanced LANDSAT TM images (Bands 4,3,2) acquired mainly in the year 1999.

The Soil and Terrain Database Map of East Africa is a computer system for the storage, display, interpretation and analysis of the Soil Map of East Africa at scale 1:1.000.000. The system consists of the soil and terrain database with corresponding soil maps, that are accessed by the programme for visualization in different viewer formats. Various interactive querying and selection tools provide easy access to specific parts of the database for display as thematic map, data browser or data entry form.

The national and administrative boundaries have been provided by the NFPI. Coastlines have been adapted to match the landcover dataset.

The full resolution dataset of landform and lithology has been produced from visual interpretation of digitally enhanced LANDSAT TM images acquired mainly in the year 1999. The landform classes have been developed using the ITC (International Institute for Geo-Information Science and Earth Observation) and SOTER (Soil and Terrain Database) methods. The structure of the derived legend follows a specific criteria that allows an easy correlation between these classes and the standardised one listed in LCCS (SOTER classification first and second level). SOTER is a pure Parametric or Morphometric classification. The main origin or process of terrain units is an important descriptive element because it realtes to the dominant exogenous or endogenous processes. this aspect in a general classification gives a meaningful grouping and has analytical value. The proposed legend is structured in such a way that it can be read, not only from the Morphometric point of view as in SOTER, but also taking into account the main origin and the age of landforms (mainly derived from the lithology legend). Lithology is linked with the mapping units, but is listed seperately. See the full landform/lithology legend in the resource section.

This is a thematic aggregation of the original full resolution Geomorphology/Landform and Lithology database which has been produced from visual interpretation of digitally enhanced LANDSAT TM images acquired mainly in the year 1999. The landform classes have been developed using the ITC (International Institute for Geo-Information Science and Earth Observation) and SOTER (Soil and Terrain Database) methods. This thematic aggregation groups the lithology codes into three main groupings based on geological origin (i.e. Igneous, sedimentary or metamorphic). The structure of the derived legend follows a specific criteria that allows and easy correlation between these classes and the standardised one listed in LCCS (SOTER classification first and second level). SOTER is a pure Parametric or Morphometric classification. The main origin or process of terrain units is an important descriptive element because it relates to the dominant exogenous or endogenous processes. This aspect in a general classification gives a meaningful grouping and has analytical value. The proposed legend is structured in such a way that it can be read, not only from the Morphometric point of view as in SOTER, but also taking into account the main origin and the age of landforms (mainly derived from the lithology legend). Lithology is linked with the mapping units, but is listed separately. See the full landform/lithology legend in the resource section.

This is a thematic aggregation of the original full resolution Geomorphology/Landform and Lithology database which has been produced from visual interpretation of digitally enhanced LANDSAT TM images acquired mainly in the year 1999. The landform classes have been developed using the ITC (International Institute for Geo-Information Science and Earth Observation) and SOTER (Soil and Terrain Database) methods. This thematic aggregation groups the landform codes into broader landform units. The structure of the derived legend follows a specific criteria that allows and easy correlation between these classes and the standardised one listed in LCCS (SOTER classification first and second level). SOTER is a pure Parametric or Morphometric classification. The main origin or process of terrain units is an important descriptive element because it relates to the dominant exogenous or endogenous processes. This aspect in a general classification gives a meaningful grouping and has analytical value. The proposed legend is structured in such a way that it can be read, not only from the Morphometric point of view as in SOTER, but also taking into account the main origin and the age of landforms (mainly derived from the lithology legend). Lithology is linked with the mapping units, but is listed separately. See the full landform/lithology legend in the resource section.

This dataset is a thematic reaggregated version of the original national Africover landcover multipurpose database. It contains all cultivated land. The original full resolution land cover has been produced from visual interpretation of digitally enhanced LANDSAT TM images (Bands 4,3,2) acquired mainly in the year 1999 (see the "Multipurpose Landcover Database" metadata for more details). This dataset is intended for free public access. Thematic aggregation is the way that the end user customizes the Africover database to fulfil his/her specific requirements. The Africover database gives equal level of detail to Agriculture as well as Natural vegetation or Bare Areas etc. Generally a single user does not need this level of detail for each class type; therefore he/she will enhance the information of one land cover type and will generalize or erase the information related to other land cover aspects. The most powerful way to conduct an aggregation exercise is to use the classifiers as basic elements of the exercise. This gives the user the maximum flexibility on the use of data. The shape main attributes correspond to the following fields: -ID -HECTARES -GRASS_ID -GRASS_DESC You can download a zip archive containing: -the er-grass-agg (.shp) -the Eritrea Classifiers Used (.pdf) -the Eritrea legend (.pdf and .xls) -the Eritrea Legend - LCCS Import file (.xls) -the LCCSglossary_eritrea (.pdf) -the thematic-aggregation-procedure (.pdf) -the thematic-aggregation-annex1 (.pdf) -the thematic-aggregation-annex2 (.pdf) -the Userlabel Definitions (.pdf)