"Geodesy stubs" typically refers to short or incomplete articles related to the field of geodesy on platforms like Wikipedia. A stub is a term used in online encyclopedias and wikis to denote an article that lacks sufficient content to provide a comprehensive overview of the topic.
The African Geodetic Reference Frame (AFREF) is a framework developed for accurately referencing geographic locations and measurements across the African continent. It provides a standardized coordinate system that allows for consistent positioning, mapping, and navigation throughout Africa, facilitating various applications in fields such as surveying, geodesy, GIS (Geographic Information Systems), and scientific research. AFREF is designed to enhance interoperability among different national and regional geodetic systems in Africa.
The Canadian Journal of Remote Sensing is a peer-reviewed scientific journal that focuses on the field of remote sensing, particularly as it pertains to applications and research relevant to Canada and its unique environmental and societal contexts. The journal publishes articles, research papers, and reviews that cover various aspects of remote sensing technology, methodologies, data analysis, and applications in fields such as ecology, agriculture, forestry, urban planning, and climate studies.
"Cartographica" is a term that can refer to several different things depending on the context. Primarily, it is associated with: 1. **Cartographica (Journal)**: This is a scholarly journal focused on cartography, which is the study and practice of making maps. The journal publishes research articles, reviews, and case studies related to the theory, creation, and application of maps, as well as advancements in cartographic technology and techniques.
Controlled Source Electromagnetic (CSEM) is a geophysical method used primarily in exploration geophysics to investigate subsurface properties, particularly in the context of oil and gas exploration, as well as mineral exploration and environmental studies. CSEM employs controlled sources of electromagnetic (EM) fields to probe the electrical resistivity of the Earth's subsurface materials.
A Digital Orthophoto Quadrangle (DOQ) is a digital aerial photograph that has been geometrically corrected (orthorectified) to ensure that the scale of the photograph is uniform across the image. This means that the image accurately represents the Earth's surface, allowing it to be used as a map where distances and areas can be measured accurately.
Dwell time in the context of Global Navigation Satellite Systems (GNSS) refers to the duration that a GNSS receiver spends receiving signals from a specific satellite. This is important for several reasons: 1. **Signal Acquisition**: The longer a receiver dwells on a satellite, the better it can acquire and process the signals. This includes determining the satellite's position and the timing of the signals. 2. **Position Accuracy**: Increased dwell time can lead to improved position accuracy.
The European Journal of Remote Sensing (EJRS) is a scientific journal that focuses on research and advancements in the field of remote sensing. It covers a wide range of topics related to remote sensing technologies, applications, data analysis, and methodologies. This can include studies involving satellite and aerial imagery, sensor technologies, data processing techniques, and the application of remote sensing in various fields such as environmental monitoring, urban studies, agriculture, and land management.
The French Geodesic Mission to Lapland, which took place in the 18th century, was a significant scientific expedition aimed at determining the shape of the Earth by measuring a meridian arc. Specifically, it was part of a larger effort to resolve the debate over whether the Earth was an oblate spheroid (flattened at the poles) or a prolate spheroid (elongated at the poles).
Full spectral imaging is a technique that captures and analyzes the full spectrum of light reflected or emitted from an object across a wide range of wavelengths, rather than just in discrete bands. This method allows for detailed characterization of materials, enabling the identification of chemical compositions and physical properties based on their spectral signatures. Key aspects of full spectral imaging include: 1. **Multispectral and Hyperspectral Imaging**: Full spectral imaging encompasses multispectral and hyperspectral imaging.
GIScience (Geographic Information Science) and Remote Sensing are two interconnected fields that deal with the analysis and management of spatial data. Here's a breakdown of each: ### GIScience (Geographic Information Science) GIScience is the study of geographic information systems (GIS) and encompasses the theories, techniques, and technology used to collect, analyze, and visualize spatial data.
A GPS buoy is a floating device equipped with a Global Positioning System (GPS) receiver. These buoys are typically used in marine environments to gather data related to navigation, oceanographic research, and environmental monitoring. Here are some key features and applications of GPS buoys: 1. **Navigation Aid**: GPS buoys can serve as reference points for navigation, helping ships and boats determine their position and course.
Geocarto International is a company that specializes in remote sensing and geospatial technology solutions. It is involved in providing services related to geographic information systems (GIS), satellite imagery analysis, and environmental monitoring. Geocarto International typically offers products and services that help organizations and governments make informed decisions based on spatial data. The company may focus on various applications, including land-use planning, natural resource management, disaster response, and environmental assessments.
A Geodimeter is a type of electronic distance measuring (EDM) instrument used in surveying and geodesy to measure distances between points with high precision. It operates by emitting a light signal, usually a laser or infrared beam, towards a target point, and measuring the time it takes for the signal to return. The instrument uses the speed of light to calculate the distance based on the elapsed time.
Guy Bomford is a British mathematician, known for his work in various fields, particularly in the context of mathematics and integrative approaches to mathematical education.
The International Journal of Applied Earth Observation and Geoinformation is a peer-reviewed academic journal that focuses on research and developments in the fields of earth observation and geoinformation technologies. It publishes articles related to the application of remote sensing, geographic information systems (GIS), and other related technologies in various domains such as environmental monitoring, urban planning, disaster management, agriculture, forestry, and natural resource management.
The International Journal of Digital Earth is a scholarly, peer-reviewed journal that focuses on the integration of digital technologies with Earth sciences and environmental studies. It provides an interdisciplinary platform for researchers, practitioners, and policymakers to share their findings and developments related to digital representations of the Earth's surface, including remote sensing, geographic information systems (GIS), and spatial data analysis.
The Japan Microgravity Centre (JMC) is an organization focused on conducting research and development in the field of microgravity and its applications. Established in Japan, the center serves as a platform for scientists, researchers, and industry professionals to explore the effects of microgravity on various physical, biological, and chemical processes. The center typically collaborates with various institutions, including universities and businesses, to facilitate experiments and promote innovation in areas such as materials science, life sciences, and space technology.
The Josephinian Land Survey, also known as the Josephinian Cadastre, was a systematic survey of land carried out in the late 18th century, primarily in the Habsburg Monarchy, under the reign of Emperor Joseph II. Initiated around 1785, this survey aimed to create a detailed and accurate record of landownership, land use, and agricultural potential in the empire, which included regions that are now parts of modern Austria, Hungary, and the Czech Republic, among others.
The Journal of Photogrammetry, Remote Sensing and Geoinformation Science is an academic journal that focuses on the field of photogrammetry, remote sensing, and geoinformation science. It publishes research articles, reviews, and technical papers that cover a wide range of topics related to the collection, analysis, and interpretation of geospatial data obtained from various sources, including aerial and satellite imagery, LiDAR, and other remote sensing technologies.
The Journal of the Indian Society of Remote Sensing (JISRS) is a scientific journal that focuses on the field of remote sensing. It is published by the Indian Society of Remote Sensing, which is an organization dedicated to promoting the application of remote sensing technology in various fields such as agriculture, forestry, land use, disaster management, and environmental monitoring. The journal publishes original research articles, reviews, and technical notes related to remote sensing techniques and applications.
Lower crustal flow refers to the movement of rocks in the lower part of the Earth's crust, typically occurring over geological timescales. This process is significant in the context of tectonics and geomorphology, as it plays a role in continental dynamics, mountain building, and the formation of various geological features. The lower crust is primarily composed of crystalline rocks, which, when subjected to high temperatures and pressures, can behave like viscoelastic materials.
The Maximum-value composite procedure is a method used in decision-making and optimization, particularly within the context of multi-criteria decision analysis (MCDA). This procedure helps in evaluating alternatives based on multiple criteria and is particularly useful when decisions need to account for conflicting criteria. ### Key Features of the Maximum-value Composite Procedure: 1. **Multiple Criteria**: It allows decision-makers to assess alternatives based on several different criteria, which may have different units or scales.
Mikhail Molodenskii is a notable figure in the field of geophysics and applied mathematics, particularly known for his contributions to the study of fluid dynamics and the mathematical modeling of geophysical phenomena. He is often referenced in discussions related to geophysical fluid dynamics, wave phenomena in the atmosphere and oceans, and various mathematical methods used in earth sciences.
The Normalized Difference Red Edge Index (NDREI) is a remote sensing index used to assess vegetation health and monitor plant stress. It leverages the reflectance properties of plants in the red edge region of the electromagnetic spectrum, which is typically found between the red and near-infrared (NIR) wavelengths. The red edge is particularly sensitive to changes in chlorophyll content and leaf structure, making it an effective indicator for analyzing vegetation conditions.
The Nummela Standard Baseline is a systematic approach used in the context of forest carbon accounting and greenhouse gas emissions measurement. It is named after the town of Nummela in Finland, where this methodology was developed. The Nummela Standard Baseline provides a framework for establishing baseline scenarios that help determine the carbon stock of forests and the changes in carbon dioxide emissions associated with different land-use practices.
Ordnance Datum is a specific reference point used in surveying and mapping that provides a standard level from which height or elevation measurements can be made. In the context of the United Kingdom, the term commonly refers to the mean sea level at Newlyn, Cornwall, which has been used as a base for height measurements since the 19th century. Measurements taken relative to Ordnance Datum are typically expressed in meters or feet above this reference level.
The Photochemical Reflectance Index (PRI) is a vegetation index used to assess the physiological state of plants and their photosynthetic activity. It is particularly useful for monitoring stress in plants, such as drought or nutrient deficiency, and understanding the dynamics of ecosystems. PRI is based on the reflection of light in certain wavelengths, specifically focusing on the relationship between the reflectance in the red edge (around 700 nm) and the reflectance in the green region of the spectrum (approximately 530 nm).
A rational polynomial coefficient refers to a coefficient in a polynomial that is a rational number. A polynomial is typically expressed in the form: \[ P(x) = a_n x^n + a_{n-1} x^{n-1} + \ldots + a_1 x + a_0 \] where the \(a_i\) (coefficients) can be any real or complex numbers.
The term "red edge" can refer to several concepts depending on the context, including: 1. **Biological Context**: In ecology and remote sensing, the "red edge" phenomenon refers to the sharp change in reflectance of plant leaves in the near-infrared spectrum. Specifically, it occurs between the red and near-infrared wavelengths (approximately 680 to 750 nanometers).
Remote Sensing is a peer-reviewed open-access scientific journal that focuses on the field of remote sensing, which involves the acquisition of information about the Earth's surface without direct contact, typically through the use of satellites, aircraft, drones, and other sensor technologies.
Remote sensing in ecology and conservation refers to the use of satellite or aerial imagery to collect and analyze data about the Earth's surface and its ecosystems without physical contact. This technology enables researchers and conservationists to monitor, assess, and manage environmental conditions and natural resources efficiently and effectively. ### Key Aspects of Remote Sensing in Ecology and Conservation: 1. **Data Collection**: Remote sensing involves the capture of data using sensors that measure electromagnetic radiation reflected or emitted from the Earth’s surface.
The Soil-Adjusted Vegetation Index (SAVI) is a spectral index used in remote sensing to assess vegetation cover and health, specifically in areas where soil brightness can affect the measurement of vegetation. It was developed to address some limitations of traditional vegetation indices like the Normalized Difference Vegetation Index (NDVI), which can be influenced by soil backgrounds, especially in regions with sparse vegetation. SAVI incorporates a soil adjustment factor (L), which allows for better estimation of vegetation coverage in different soil conditions.
The Swedish–Russian Arc-of-Meridian Expedition (also known as the Great Northern Expedition) was a significant scientific endeavor in the 18th century aimed at measuring a meridian arc—a crucial task for understanding the shape and size of the Earth. Conducted between 1736 and 1743, the expedition was a collaboration between Swedish and Russian scientists and explorers.
The Tasseled Cap Transformation (TCT) is a mathematical technique used in remote sensing, primarily applied to multispectral satellite imagery, to enhance the interpretation of vegetation, soil, and moisture content in an area. It simplifies and summarizes multispectral data into a few key components that represent different landscape features. The transformation works by creating a new set of synthetic bands (commonly three) from the original multispectral bands.
The Cartographic Journal is a scholarly publication that focuses on the field of cartography, which is the study and practice of making maps. It serves as a platform for researchers, practitioners, and educators in the field to share their findings, methodologies, and advancements. The journal typically includes peer-reviewed articles, research papers, and case studies that cover a wide range of topics related to cartographic theory, techniques, technologies, and applications.
Thermal infrared spectroscopy (TIRS) is an analytical technique used to study the infrared spectral characteristics of materials based on their thermal emissions. This technique measures the intensity of infrared radiation emitted by a sample at a specific temperature, typically in the mid-infrared range (approximately 3-30 micrometers, or 3000-30,000 nanometers).
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