ASC ASCII Data File 1 A set of one or more related parameters that describe the state of a domain. A physical domain may be associated with more than one state. A device that measures a physical phenomenon or parameter. At a minimum, it possesses a detector which produces a signal from which the desired quantity is calculated or inferred. The detector signal possesses the information needed to either obtain the value of the phenomenon (e.g, temperature: a voltage is converted into a temperature unit) or infer its value using further processing and computation (magnetic fields: detector intensities at a different wavelengths and polarization states are processed to infer a magnetic field strength). An instrument does not necessarily require a way to store its measured quantity (e.g, a hard disk). TAB Tab delimited data file JPG JPEG Data Image Set of parameters describing a physical domain that all have electric charge = -1 IDL Script Data File IDL Set of parameters describing a physical domain that all have electric charge > 0 A plot of the selected variable (Y axis) versus time (X axis) Time Series Plot Flat space-delimited data file FLAT OPeNDAP DAS (Data Attribute Structure) data file DAS FITS Data Image FTS electric charge = 0 OPeNDAP information data file INFO Stream binary file STREAM A contour plot of the selected variable versus Height (Y axis) and Time (X axis) Altitude vs Time Plot Any 1 1 1 1 Best An interval on the Real numerical axis An instrument that uses the principle of interference of electromagnetic waves for purposes of measurement. Note: Interferometers may be used to measure a variety of physical variables, such as displacement (distance), temperature, pressure, and strain. DDX OPeNDAP DDX (Data descriptor in XML) data file DDS OPeNDAP DDS (Data Descriptor Structure) data file Generic class that defines the functionality for querying metadata information from a data archive. The results of the query may be constrained by an associated DataConstraint object. Instances of MetadataService and DataConstraint are created on demand to support a transient query session. Set of parameters describing a physical domain that all have electric charge = 0 A multiple-beam interferometer, usually consisting of two flat plates, with high reflective ability. The plates are set parallel to one another by spacers so that light waves may bounce back and forth between them several times. The requirements for constructive interference of reflected light waves of a given wavelength can be fulfilled only at particular angles, relative to the normal to the plates. Therefore, Fabry-Perot interferometers can be used as spectrometers with high resolution. Used as a laser resonator, the Fabry-Perot reinforces only light of specific frequencies traveling perpendicular to the mirror surfaces, and its successive reflections and amplifications form the oscillating mode. A physical quantity with electric charge = 0 A measured physical property in signal units. It has units and possibly a timestamp. The signal units are not the physical ones, like Gauss or Kelvin, but are something inherent in the detector, like volts or ADU's. The physical units are either calculated or inferred from the signal units. OPeNDAP data file OPeNDAP electric charge = -1 electric charge > 0 A collection of observations of the physical quantity of interest. They usually have a location, observatory, instrument, and parameter (or set of parameters) associated with them. They also have a format along with an epoch over which they were taken. A collection of data storage media and services that is accessible through a unified interface. A data archive may contain datasets from multiple instruments and multiple observatories. A configuration which allows the instrument to produce the required signal. Utility class representing a generic (name,value) pair A facility which houses and operates one or more instruments either synoptically or periodically. It has a physical location and operating hours. It can be either manned or remote. Average Latitude-Longitude Contour Plot A contour plot of the selected variable versus latitude (Y axis) and longitude (X axis) HTML form for OPeNDAP based data access HTML electric charge < 0 Electric Charge = +1 Class representing the electric charge of a system of particles -180 <= lonngitude <= +180 -90 <= latutude <= +90 Strength -90 <= latitude <= +90 -180 <= longitude <= +90 50.0 From the 7–17 km range (upper boundary of the Troposphere) to about 50 km, temperature increasing with height. 17.0 Earth Stratosphere 50.0 10.0 Or ozonosphere, the region of the Earth's Atmosphere approximately in the range 10 - 50 km, where stratospheric ozone is found. Note that even within this region, ozone is a minor constituent by volume. Earth Ozone Layer 640.0 Earth Troposphere From 80–85 km (upper boundary of the Mesosphere) to 640+ km, temperature increasing with height. 85.0 From about 50 km (upper boundary of the Stratosphere) to the range of 80 km to 85 km, temperature decreasing with height. Earth Mesosphere 85.0 50.0 Earth Magnetosphere The region of the Earth Atmosphere where the Earth's magnetic field interacts with the solar wind from the Sun. It extends for tens of thousands of kilometers, with a long tail away from the Sun. 100000.0 0.0 Earth Atmosphere 800.0 550.0 The region of the Earth Atmosphere above the Ionosphere, where the atmosphere thins out into space. This is the last major atmosphere. Earth Exosphere -90.0 -180.0 Earth Surface 90.0 North Pole 66.0 Arctic Circle -66.0 Antarctic Circle Tropic of Capricorn -23.0 90.0 Arctic 90.0 180.0 -180.0 66.0 180.0 South Pole -90.0 Tropic of Cancer 23.0 -66.0 -90.0 -180.0 180.0 Antarctic Equator 0.0 Earth Earth Troposphere 0.0 From the Greek word "tropos" meaning to turn or mix. The troposphere is the lowest layer of the atmosphere starting at the surface going up to between 7 km at the poles and 17 km at the equator with some variation due to weather factors. The troposphere has a great deal of vertical mixing due to solar heating at the surface. This heating warms air masses, which then rise to release latent heat as sensible heat that further buoys the air mass. This process continues until all water vapor is removed. In the troposphere, on average, temperature decreases with height due to expansive cooling. 17.0 800.0 The region of the Earth's Atmosphere above the mesopause. Earth Upper Atmosphere 85.0 The region of the Earth Atmosphere containing ions: approximately the mesosphere and thermosphere up to 550 km. Earth Ionosphere 550.0 50.0 Sun Atmosphere Sun Corona Sun