• Spatial association

    Spatial association is the degree to which things are similarly arranged in space. Analysis of the distribution patterns of two phenomena is done by map over...

  • Spatial analysis

    Spatial analysis or spatial statistics includes any of the formal techniques which studies entities using their topological, geometric, or geographic propert...

  • Soil in Tanqwa Abergele

    The soils of the Tanqwa Abergele woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively high temperature...

  • Soil in Sa'isi Tsa'ida Imba

    The soils of the Saisi Tsaida Imba woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively low temperatur...

  • Soil in Kola Tembien

    The soils of the Kola Tembien woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively high temperatures, ...

  • Soil in Kilte Awula'ilo

    The soils of the Kilte Awula’ilo woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively low temperatures...

  • Soil in Dogu'a Tembien

    The soils of the Dogu’a Tembien woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively low temperatures,...

  • Soil in Atsbi Wenberta

    The soils of the Atsbi Wenberta woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime and relatively low temperatur...

  • Small Island Developing States

    Small Island Developing States are a group of small island countries that tend to share similar sustainable development challenges, including small but growi...

  • Region

    In geography, regions are areas that are broadly divided by physical characteristics, human impact characteristics, and the interaction of humanity and the e...

  • Rank-size distribution

    Rank-size distribution is the distribution of size by rank, in decreasing order of size. For example, if a data set consists of items of sizes 5, 100, 5, and...

  • Primary care service area

    Primary Care Service Areas are geographic areas that are self-sufficient markets of primary care. These areas are designed in a manner such that the majority...

  • Population density

    Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently appl...

  • Phonolite series in North Ethiopia

    The phonolite or clinkstone of northern Ethiopia is a shallow-seated igneous rock. The phonolites intruded and punctured the Mesozoic sedimentary rocks and t...

  • Paraiba Valley

    The Paraiba Valley is a natural geographical accident that encompasses the regions: Paraiba Valley Metropolitan Region and Northern Coast, in the state of Sã...

  • Pan-region

    A pan-region is a geographic region or state’s sphere of economic, political and cultural influence extending beyond that states borders. For example, the pa...

  • Natural landscape

    A natural landscape is the original landscape that exists before it is acted upon by human culture. The natural landscape and the cultural landscape are sepa...

  • Mountain research

    Mountain research or montology, traditionally also known as orology, is a field of research that regionally concentrates on the Earths surfaces part covered ...

  • Map

    A map is a symbolic depiction emphasizing relationships between elements of some space, such as objects, regions, or themes. Many maps are static, fixed to p...

  • Mainland

    Mainland is defined as "relating to or forming the main part of a country or continent, not including the islands around it." The term is often politically, ...

  • Land systems

    Land systems constitute the terrestrial component of the Earth system and encompass all processes and activities related to the human use of land, including ...

  • Land cover

    Land cover is the physical material at the surface of the earth. Land covers include grass, asphalt, trees, bare ground, water, etc. Earth cover is the expre...

  • Intra-volcanic sedimentary rock in North Ethiopia

    Between 29 and 27 million years ago, the extrusion of Ethiopia’s flood basalts was interrupted and deposition of continental sediments occurred. Inter-trappe...

  • Internet geography

    Internet geography, also called cybergeography, is a subdiscipline of geography that studies the spatial organization of the Internet, from social, economic,...

  • Hjulstrom curve

    The Hjulstrom curve, named after Filip Hjulstrom, is a graph used by hydrologists and geologists to determine whether a river will erode, transport, or depos...

  • Hemispheres of Earth

    In geography and cartography, the hemispheres of Earth refer to any division of the globe into two hemispheres. The most common such divisions are by latitud...

  • Governmentality

    Governmentality is a concept first developed by the French philosopher Michel Foucault in the later years of his life, roughly between 1977 and his death in ...

  • Geopark

    A geopark is a unified area that advances the protection and use of geological heritage in a sustainable way, and promotes the economic well-being of the peo...

  • Geography of aging

    Geography of aging or gerontological geography is an emerging field of knowledge of Human Geography that analyzes the socio-spatial implications of aging of ...

  • Geographical feature

    Geographical features are naturally-created features of the Earth. Natural geographical features consist of landforms and ecosystems. For example, terrain ty...

  • Geographic targeting

    Geographic targeting is a viable way for resource allocation, especially to alleviate poverty in a country. In this context, public expenditure and policy in...

  • Geoarchaeology

    Geoarchaeology is a multi-disciplinary approach which uses the techniques and subject matter of geography, geology, geophysics and other Earth sciences to ex...

  • Fictional geography

    Fictional geography is the use of maps, text and imagery to create lands and territories to accompany works of fiction. Depending on the completeness and com...

  • Extreme environment

    An extreme environment is a habitat that is considered very hard to survive in due to its considerably extreme conditions such as temperature, accessibility ...

  • Enticho Sandstone

    The Enticho Sandstone is a geological formation in north Ethiopia. It forms the lowermost sedimentary rock formation in the region and lies directly on the b...

  • Edgelands

    Edgelands are the transitional, liminal areas of space to be found on the boundaries of country and town - with the spread of urbanisation, an increasingly i...

  • Edaga Arbi Glacials

    The Edaga Arbi Glacials are a Palaeozoic geological formation in Tigray and in Eritrea. The matrix is composed of grey, black and purple clays, that contains...

  • Easting and northing

    Easting and northing are geographic Cartesian coordinates for a point. Easting is the eastward-measured distance and northing is the northward-measured dista...

  • Earth section paths

    Earth section paths are paths on the earth defined by the intersection of a reference ellipsoid and a plane. Common examples of earth sections include the gr...

  • Degua Tembien

    Dogua Tembien is one of the woredas in the Tigray Region of Ethiopia. It is named in part after the former province of Tembien. Nowadays, the mountainous dis...

  • Ashangi Basalts

    The Ashangi Basalts are the earliest Tertiary volcanic rocks in north Ethiopia, hence they are in the lowest position. These dark porphyritic basalts are sep...

  • Antalo Limestone

    The Antalo Limestone, also known as the Antalo Sequence, is a geological formation in Ethiopia. It is between 300 and 800 metres thick and comprises fossilif...

  • Amba Aradam Formation

    The Amba Aradam Formation is a Cretaceous sandstone formation in Ethiopia. It is up to 200 metres thick, for instance in the Degua Tembien district. As fossi...

  • Adigrat Sandstone

    The Adigrat Sandstone formation in north Ethiopia, in a wide array of reddish colours, comprises sandstones with coarse to fine grains, and locally conglomer...

  • Outline of geography

    a social science – field of academic scholarship that explores aspects of human society human geography. a field of science – widely recognized category of s...

  • Geography

    Geography is a field of science devoted to the study of the lands, features, inhabitants, and phenomena of the Earth and planets. The first person to use the...

Geography

Geography is a field of science devoted to the study of the lands, features, inhabitants, and phenomena of the Earth and planets. The first person to use the...

Outline of geography

a social science – field of academic scholarship that explores aspects of human society human geography. a field of science – widely recognized category of s...

Adigrat Sandstone

The Adigrat Sandstone formation in north Ethiopia, in a wide array of reddish colours, comprises sandstones with coarse to fine grains, and locally conglomer...

Amba Aradam Formation

The Amba Aradam Formation is a Cretaceous sandstone formation in Ethiopia. It is up to 200 metres thick, for instance in the Degua Tembien district. As fossi...

Antalo Limestone

The Antalo Limestone, also known as the Antalo Sequence, is a geological formation in Ethiopia. It is between 300 and 800 metres thick and comprises fossilif...

Ashangi Basalts

The Ashangi Basalts are the earliest Tertiary volcanic rocks in north Ethiopia, hence they are in the lowest position. These dark porphyritic basalts are sep...

Boundary problem (spatial analysis)

A boundary problem in analysis is a phenomenon in which geographical patterns are differentiated by the shape and arrangement of boundaries that are drawn fo...

Degua Tembien

Dogua Tembien is one of the woredas in the Tigray Region of Ethiopia. It is named in part after the former province of Tembien. Nowadays, the mountainous dis...

Distance decay

Distance decay is a geographical term which describes the effect of distance on cultural or spatial interactions. The distance decay effect states that the i...

Earth section paths

Earth section paths are paths on the earth defined by the intersection of a reference ellipsoid and a plane. Common examples of earth sections include the gr...

Easting and northing

Easting and northing are geographic Cartesian coordinates for a point. Easting is the eastward-measured distance and northing is the northward-measured dista...

Economic restructuring

Economic restructuring is used to indicate changes in the constituent parts of an economy in a very general sense. In the western world, it is usually used t...

Edaga Arbi Glacials

The Edaga Arbi Glacials are a Palaeozoic geological formation in Tigray and in Eritrea. The matrix is composed of grey, black and purple clays, that contains...

Edgelands

Edgelands are the transitional, liminal areas of space to be found on the boundaries of country and town - with the spread of urbanisation, an increasingly i...

Enticho Sandstone

The Enticho Sandstone is a geological formation in north Ethiopia. It forms the lowermost sedimentary rock formation in the region and lies directly on the b...

Extreme environment

An extreme environment is a habitat that is considered very hard to survive in due to its considerably extreme conditions such as temperature, accessibility ...

Fictional geography

Fictional geography is the use of maps, text and imagery to create lands and territories to accompany works of fiction. Depending on the completeness and com...

Fundamental plane (spherical coordinates)

The fundamental plane in a spherical coordinate system is a plane of reference that divides the sphere into two hemispheres. The geocentric latitude of a poi...

Geo-literacy

The term "geo-literacy" arose from the National Geographic Societys "Fight against Geographic Illiteracy." The organization released various media to help ex...

Geo-replication

Geo-replication systems are designed to improve the distribution of data across geographically distributed data networks. This is intended to improve the res...

Geoarchaeology

Geoarchaeology is a multi-disciplinary approach which uses the techniques and subject matter of geography, geology, geophysics and other Earth sciences to ex...

Geocriticism

Geocriticism is a method of literary analysis and literary theory that incorporates the study of geographic space. The term designates a number of different ...

Geographic contiguity

Geographic contiguity is the characteristic in geography of political or geographical land divisions, as a group, not being interrupted by other land or wate...

Geographic targeting

Geographic targeting is a viable way for resource allocation, especially to alleviate poverty in a country. In this context, public expenditure and policy in...

Geographical cluster

A geographical cluster is a localised anomaly, usually an excess of something given the distribution or variation of something else. Often it is considered a...

Geographical feature

Geographical features are naturally-created features of the Earth. Natural geographical features consist of landforms and ecosystems. For example, terrain ty...

Geography of aging

Geography of aging or gerontological geography is an emerging field of knowledge of Human Geography that analyzes the socio-spatial implications of aging of ...

Geopark

A geopark is a unified area that advances the protection and use of geological heritage in a sustainable way, and promotes the economic well-being of the peo...

Glacial refugium

A glacial refugium is a geographic region which made possible the survival of flora and fauna in times of ice ages and allowed for post-glacial re-colonizati...

Governmentality

Governmentality is a concept first developed by the French philosopher Michel Foucault in the later years of his life, roughly between 1977 and his death in ...

Hemispheres of Earth

In geography and cartography, the hemispheres of Earth refer to any division of the globe into two hemispheres. The most common such divisions are by latitud...

Hermit kingdom

The term hermit kingdom is used to refer to any country, organization or society which willfully walls itself off, either metaphorically or physically, from ...

Hjulstrom curve

The Hjulstrom curve, named after Filip Hjulstrom, is a graph used by hydrologists and geologists to determine whether a river will erode, transport, or depos...

International date line in Judaism

The international date line in Judaism is used to demarcate the change of one calendar day to the next in the Jewish calendar. The Jewish calendar defines da...

Internet geography

Internet geography, also called cybergeography, is a subdiscipline of geography that studies the spatial organization of the Internet, from social, economic,...

Intra-volcanic sedimentary rock in North Ethiopia

Between 29 and 27 million years ago, the extrusion of Ethiopia’s flood basalts was interrupted and deposition of continental sediments occurred. Inter-trappe...

Laminar sublayer

The laminar sublayer, also called the viscous sublayer, is the region of a mainly-turbulent flow that is near a no-slip boundary and in which the flow is lam...

Land cover

Land cover is the physical material at the surface of the earth. Land covers include grass, asphalt, trees, bare ground, water, etc. Earth cover is the expre...

Land systems

Land systems constitute the terrestrial component of the Earth system and encompass all processes and activities related to the human use of land, including ...

Landlocked developing countries

Landlocked developing countries are developing countries that are landlocked. The economic and other disadvantages experienced by such countries makes the ma...

Mainland

Mainland is defined as "relating to or forming the main part of a country or continent, not including the islands around it." The term is often politically, ...

Map

A map is a symbolic depiction emphasizing relationships between elements of some space, such as objects, regions, or themes. Many maps are static, fixed to p...

Mountain research

Mountain research or montology, traditionally also known as orology, is a field of research that regionally concentrates on the Earths surfaces part covered ...

Natural landscape

A natural landscape is the original landscape that exists before it is acted upon by human culture. The natural landscape and the cultural landscape are sepa...

Pan-region

A pan-region is a geographic region or state’s sphere of economic, political and cultural influence extending beyond that states borders. For example, the pa...

Paraiba Valley

The Paraiba Valley is a natural geographical accident that encompasses the regions: Paraiba Valley Metropolitan Region and Northern Coast, in the state of Sã...

Phonolite series in North Ethiopia

The phonolite or clinkstone of northern Ethiopia is a shallow-seated igneous rock. The phonolites intruded and punctured the Mesozoic sedimentary rocks and t...

Place identity

Place identity or place-based identity refers to a cluster of ideas about place and identity in the fields of geography, urban planning, urban design, landsc...

Population density

Population density is a measurement of population per unit area, or exceptionally unit volume; it is a quantity of type number density. It is frequently appl...

Primary care service area

Primary Care Service Areas are geographic areas that are self-sufficient markets of primary care. These areas are designed in a manner such that the majority...

Rank-size distribution

Rank-size distribution is the distribution of size by rank, in decreasing order of size. For example, if a data set consists of items of sizes 5, 100, 5, and...

Region

In geography, regions are areas that are broadly divided by physical characteristics, human impact characteristics, and the interaction of humanity and the e...

Small Island Developing States

Small Island Developing States are a group of small island countries that tend to share similar sustainable development challenges, including small but growi...

Soil in Atsbi Wenberta

The soils of the Atsbi Wenberta woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime and relatively low temperatur...

Soil in Dogu'a Tembien

The soils of the Dogu’a Tembien woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively low temperatures,...

Soil in Inderta

The soils of the Inderta woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively low temperatures, overal...

Soil in Kilte Awula'ilo

The soils of the Kilte Awula’ilo woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively low temperatures...

Soil in Kola Tembien

The soils of the Kola Tembien woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively high temperatures, ...

Soil in Sa'isi Tsa'ida Imba

The soils of the Saisi Tsaida Imba woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively low temperatur...

Soil in Tanqwa Abergele

The soils of the Tanqwa Abergele woreda in Tigray reflect its longstanding agricultural history, highly seasonal rainfall regime, relatively high temperature...

Solar equator

The solar equator is the latitude on Earth at which the Sun is directly overhead; where the sun is vertically above at midday. Because of the inclination of ...

Spatial analysis

Spatial analysis or spatial statistics includes any of the formal techniques which studies entities using their topological, geometric, or geographic propert...

Spatial association

Spatial association is the degree to which things are similarly arranged in space. Analysis of the distribution patterns of two phenomena is done by map over...