Geography (from the Greek γεωγραφία - geografia) is the study of the Earth and its lands, features, inhabitants, and phenomena. A literal translation would be "to describe or write about the Earth". The first person to use the word "geography" was Eratosthenes (276-194 B.C.). Four historical traditions in geographical research are the spatial analysis of natural and human phenomena (geography as a study of distribution), area studies (places and regions), study of man-land relationship, and research in earth sciences. Nonetheless, modern geography is an all-encompassing discipline that foremost seeks to understand the Earth and all of its human and natural complexities-- not merely where objects are, but how they have changed and come to be. As "the bridge between the human and physical sciences," geography is divided into two main branches - human geography  and physical geography.
- 1 Introduction
- 2 Branches of geography
- 3 Geographical techniques
- 4 Geographical institutions and societies
- 5 Publications
- 6 Notes and references
- 7 External links
Traditionally, geographers have been viewed the same way as cartographers and people who study place names and numbers. Although many geographers are trained in toponymy and cartology, this is not their main preoccupation. Geographers study the spatial and temporal distribution of phenomena, processes and feature as well as the interaction of humans and their environment.  As space and place affect a variety of topics such as economics, health, climate, plants and animals, geography is highly interdisciplinary.
- mere names of places...are not geography... know by heart a whole gazetteer full of them would not, in itself, constitute anyone a geographer. Geography has higher aims than this: it seeks to classify phenomena (alike of the natural and of the political world, in so far as it treats of the latter), to compare, to generalize, to ascend from effects to causes, and, in doing so, to trace out the great laws of nature and to mark their influences upon man. This is 'a description of the world';that is Geography. In a word Geography is a Science - a thing not of mere names but of argument and reason, of cause and effect.
Geography as a discipline can be split broadly into two main sub fields:[human geography and physical geography. The former focuses largely on the built environment and how space is created, viewed and managed by humans as well as the influence humans have on the space they occupy. The latter examines the natural environment and how the climate, vegetation & life, soil, water, and landforms are produced and interact. As a result of the two subfields using different approaches a third field has emerged, which is environmental geography. Environmental geography combines physical and human geography and looks at the interactions between the environment and humans.
Branches of geography
Physical geography (or physiogeography) focuses on geography as an Earth science. It aims to understand the physical lithosphere, hydrosphere, atmosphere, pedosphere, and global flora and fauna patterns (biosphere). Physical geography can be divided into the following broad categories:
- Coastal geography
- Environmental geography
- Environmental management
- Landscape ecology
- Pedology (soil study)
- Quaternary science
Human geography is a branch of geography that focuses on the study of patterns and processes that shape human interaction with various environments. It encompasses human, political, cultural, social, and economic aspects. While the major focus of human geography is not the physical landscape of the Earth (see physical geography), it is hardly possible to discuss human geography without referring to the physical landscape on which human activities are being played out, and environmental geography is emerging as a link between the two. Human geography can be divided into many broad categories, such as:
- Cultural geography
- Development geography
- Economic geography
- Health geography,
- Historical geography
- Time geography
- Political geography
- Population geography
- Religion geography
- Social geography
- Transportation geography
- Tourism geography
- Urban geography
Various approaches to the study of human geography have also arisen through time and include:
Environmental geography is the branch of geography that describes the spatial aspects of interactions between humans and the natural world. It requires an understanding of the traditional aspects of physical and human geography, as well as the ways in which human societies conceptualize the environment.
Environmental geography has emerged as a bridge between human and physical geography as a result of the increasing specialisation of the two sub-fields. Furthermore, as human relationship with the environment has changed as a result of globalization and technological change, a new approach was needed to understand the changing and dynamic relationship. Examples of areas of research in environmental geography include emergency management, environmental management, sustainability, and political ecology.
Geomatics is a branch of geography that has emerged since the quantitative revolution in geography in the mid 1950s. Geomatics involves the use of traditional spatial techniques used in cartography and topography and their application to computers. Geomatics has become a widespread field with many other disciplines using techniques such as GIS and remote sensing. Geomatics has also led to a revitalization of some geography departments especially in Northern America where the subject had a declining status during the 1950s.
Regional geography is a branch of geography that studies the regions of all sizes across the Earth. It has a prevailing descriptive character. The main aim is to understand or define the uniqueness or character of a particular region which consists of natural as well as human elements. Attention is paid also to regionalization which covers the proper techniques of space delimitation into regions.
Regional geography is also considered as a certain approach to study in geographical sciences (similar to quantitative or critical geographies.
- Urban planning, regional planning and spatial planning use the science of geography to assist in determining how to develop (or not develop) the land to meet particular criteria, such as safety, beauty, economic opportunities, the preservation of the built or natural heritage, and so on. The planning of towns, cities, and rural areas may be seen as applied geography.
- Regional science: In the 1950s the regional science movement led by Walter Isard arose, to provide a more quantitative and analytical base to geographical questions, in contrast to the descriptive tendencies of traditional geography programs. Regional science comprises the body of knowledge in which the spatial dimension plays a fundamental role, such as regional economics, resource management, location theory, urban planning, and regional planning, transport and communication, human geography, population distribution, landscape ecology, and environmental quality.
- Interplanetary Sciences: While the discipline of geography is normally concerned with the Earth, the term can also be informally used to describe the study of other worlds, such as the planets of the Solar System and even beyond. The study of systems larger than the earth itself usually forms part of Astronomy or Cosmology. The study of other planets is usually called planetary science. Alternative terms such as Areology (the study of Mars) have been proposed, but are not widely used.
As spatial interrelationships are key to this synoptic science, maps are a key tool. Classical cartography has been joined by a more modern approach to geographical analysis, computer-based geographic information systems (GIS).
In their study, geographers use four interrelated approaches:
- Systematic - Groups geographical knowledge into categories that can be explored globally.
- Regional - Examines systematic relationships between categories for a specific region or location on the planet.
- Descriptive - Simply specifies the locations of features and populations.
- Analytical - Asks why we find features and populations in a specific geographic area.
Cartography studies the representation of the Earth's surface with abstract symbols (map making). Although other subdisciplines of geography rely on maps for presenting their analyses, the actual making of maps is abstract enough to be regarded separately. Cartography has grown from a collection of drafting techniques into an actual science.
Cartographers must learn cognitive psychology and ergonomics to understand which symbols convey information about the Earth most effectively, and behavioral psychology to induce the readers of their maps to act on the information. They must learn geodesy and fairly advanced mathematics to understand how the shape of the Earth affects the distortion of map symbols projected onto a flat surface for viewing. It can be said, without much controversy, that cartography is the seed from which the larger field of geography grew. Most geographers will cite a childhood fascination with maps as an early sign they would end up in the field.
Geographic information systems
Geographic information systems (GIS) deal with the storage of information about the Earth for automatic retrieval by a computer, in an accurate manner appropriate to the information's purpose. In addition to all of the other subdisciplines of geography, GIS specialists must understand computer science and database systems. GIS has revolutionized the field of cartography; nearly all mapmaking is now done with the assistance of some form of GIS software. GIS also refers to the science of using GIS software and GIS techniques to represent, analyze and predict spatial relationships. In this context, GIS stands for Geographic Information Science.
Remote sensing can be defined as the art and science of obtaining information about Earth features from measurements made at a distance. Remotely sensed data comes in many forms such as satellite imagery, aerial photography and data obtained from hand-held sensors. Geographers increasingly use remotely sensed data to obtain information about the Earth's land surface, ocean and atmosphere because it: a) supplies objective information at a variety of spatial scales (local to global), b) provides a synoptic view of the area of interest, c) allows access to distant and/or inaccessible sites, d) provides spectral information outside the visible portion of the electromagnetic spectrum, and e) facilitates studies of how features/areas change over time. Remotely sensed data may be analyzed either independently of, or in conjunction with, other digital data layers (e.g., in a Geographic Information System).
Geographic quantitative methods
Geostatistics deal with quantitative data analysis, specifically the application of statistical methodology to the exploration of geographic phenomena. Geostatistics is used extensively in a variety of fields including: hydrology, geology, petroleum exploration, weather analysis, urban planning, logistics, and epidemiology. The mathematical basis for geostatistics derives from cluster analysis, linear discriminant analysis and non-parametric statistical tests, and a variety of other subjects. Applications of geostatistics rely heavily on geographic information systems, particularly for the interpolation (estimate) of unmeasured points. Geographers are making notable contributions to the method of quantitative techniques.
Geographic qualitative methods
Geographic qualitative methods, or ethnographical; research techniques, are used by human geographers. In cultural geography there is a tradition of employing qualitative research techniques also used in anthropology and sociology. Participant observation and in-depth interviews provide human geographers with qualitative data.
Geographical institutions and societies
- Anton Melik Geographical Institute (Slovenia)
- National Geographic Society (U.S.)
- National Geographic Bee (U.S.)
- Royal Canadian Geographical Society (Canada)
- Royal Geographical Society (UK)
Notes and references
- "Geography". The American Heritage Dictionary/ of the English Language, Fourth Edition. Houghton Mifflin Company. Retrieved on October 9, 2006.
- Pattison, W.D. (1990). "The Four Traditions of Geography". Journal of Geography 89 (5): pp. 202–6. doi:10.1080/00221349008979196. ISSN 0022-1341. http://www.geog.ucsb.edu/~kclarke/G200B/four_20traditions_20of_20geography.pdf. Reprint of a 1964 article.
- Hayes-Bohanan, James. "What is Environmental Geography, Anyway?". Retrieved on October 9, 2006.
- Hughes, William. (1863). The Study of Geography. Lecture delivered at King's College, London by Sir Marc Alexander. Quoted in Baker, J.N.L (1963). The History of Geography. Oxford: Basil Blackwell. pp. p. 66.
- "What is geography?". AAG Career Guide: Jobs in Geography and related Geographical Sciences. Association of American Geographers. Retrieved on October 9, 2006.
- Jean-Louis and Monique Tassoul (1920). A Concise History of Solar and Stellar Physics. London: Princeton University Press.
- "Hipparcos of Rhodes". Technology Museum of Thessaloniki (2001). Retrieved on 2006-10-16.
- Sullivan, Dan (2000). "Mapmaking and its History". Rutgers University. Retrieved on 2006-10-16.
- Needham, Joseph (1986). Science and Civilization in China: Volume 3. Taipei: Caves Books, Ltd. Page 512.
- IslamiCity.com - Education
- E. Edson and Emilie Savage-Smith, Medieval Views of the Cosmos, pp. 61-3, Bodleian Library, University of Oxford
- David A. King (1996), "Astronomy and Islamic society: Qibla, gnomics and timekeeping", in Roshdi Rashed, ed., Encyclopedia of the History of Arabic Science, Vol. 1, p. 128-184 . Routledge, London and New York.
- Scheppler, Bill (2006), Al-Biruni: Master Astronomer and Muslim Scholar of the Eleventh Century, The Rosen Publishing Group, ISBN 1404205128
- Khwarizm". Foundation for Science Technology and Civilisation. Retrieved on 2008-01-22.
- James S. Aber (2003). Alberuni calculated the Earth's circumference at a small town of Pind Dadan Khan, District Jhelum, Punjab, Pakistan.Abu Rayhan al-Biruni, Emporia State University.
- Lenn Evan Goodman (1992), Avicenna, p. 31, Routledge, ISBN 041501929X.
- Scheppler, Bill (2006), Al-Biruni: Master Astronomer and Muslim Scholar of the Eleventh Century, The Rosen Publishing Group, ISBN 1404205128
- "Société de Géographie, Paris, France" (in French). Retrieved on 2007-01-15.
- "About Us". Royal Geographical Society. Retrieved on 2007-01-15.
- Русское Географическое Общество (основано в 1845 г.)
- The American Geographical Society
- National Geographic - Inspiring People to Care About the Planet
- Teaching Geography
- GeoKnow.net - Geography news, information and resources at your fingertips
- Juicy Geography - ideas and resources for teachers
- GeoInteractive - shared resources for teachers
- Geography case studies for students
- The Geography-Site
- Geography Teaching Today - Curriculum development project
- geographyalltheway.com - Online Geography Resources
- Seterra - Free Geography Software
- Multimedia Geography Resources
- Geographical Associations and Pressure Groups
- International Geographical Union
- National Geographic Online
- Royal Geographical Society
- Association of American Geographers
- Royal Canadian Geographical Society
- Canadian Association of Geographers
- Russian Geographical Society (Moscow Centre)
- International Geographical Union - Russian National Committee
- Colegio de Geógrafos - España
- Col.legi de Geògrafs - Catalunya