Remote sensing — There are two kinds of remote sensing. Passive sensors detect natural energy (radiation) that is emitted or reflected by the object or surrounding area being observed. Reflected sunlight is the most common source of radiation measured by passive… … Wikipedia
Indian Remote Sensing satellite — Indian Remote Sensing satellites (IRS) are a series of Earth Observation satellites, mostly built, launched and maintained by Indian Space Research Organisation of India as part of the Indian space program. The IRS series provides remote sensing… … Wikipedia
Collocation (remote sensing) — Collocation is a procedure used in remote sensing to match measurements from two or more different instruments. This is done for two main reasons: for validation purposes when comparing measurements of the same variable, and to relate… … Wikipedia
spatial sensing — Mechanism of sensing a gradient in which the signal is compared at different points on the cell surface and cell movement directed accordingly. Translocation of all or part of the cell is not required. See temporal and pseudospatial gradient… … Dictionary of molecular biology
Chemotaxis — is the phenomenon in which somatic cells, bacteria, and other single cell or multicellular organisms direct their movements according to certain chemicals in their environment. This is important for bacteria to find food (for example, glucose) by … Wikipedia
Biased random walk (biochemistry) — In cell biology, a biased random walk enables bacteria to search for food and flee from harm. Bacteria propel themselves with the aid of flagella in a process called chemotaxis, and a typical bacteria trajectory has many charactistics of a random … Wikipedia
Teledetección — Imagen del Valle de la Muerte, tomada por un radar de apertura sintética y coloreada usando un polarímetro. La teledetección o detección remota es la adquisición de información a pequeña o gran escala de un objeto o fenómeno, ya sea usando… … Wikipedia Español
Geographic information system — GIS redirects here. For other uses, see GIS (disambiguation). A geographic information system, geographical information science, or geospatial information studies is a system designed to capture, store, manipulate, analyze, manage, and present… … Wikipedia
Coastal management — This article is about coastal management aimed to prevent erosion and flooding. For broader management issues, see Integrated coastal zone management. Oosterscheldekering sea wall, the Netherlands. In some jurisdictions the terms sea defense and… … Wikipedia
Wetland — For other uses, see Wetland (disambiguation). The Florida Everglades massive wetland system in the United States saw 1.7 billion gallons of fresh water flushed from it daily and pumped into the ocean following one of the most successive water… … Wikipedia