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Weather - Mesoscale Convective System. Mesoscale Convective System. A complex of thunderstorms which becomes organized on a scale larger than the individual thunderstorms, and normally persists for several hours or more. MCSs may be round or linear in shape, and include systems such as tropical cyclones, squall lines, and Mesoscale Convective Complexes (MCCs) (among others). MCS often is used to describe a cluster of thunderstorms that does not satisfy the size, shape, or duration criteria of an Mesoscale Convective Complex.
NOAA National Weather Service - Cite This Source - This Definition - Browse Related Terms: AAAS, CMPLX, Derecho, HND, Mesoscale, Mesoscale Convective System, PRST, Water Vapor Plume
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Defense - (1) Maneuver Control System. (2) Midcourse Sensor.
DoD Missile Defense Agency - Cite This Source - This Definition - Browse Related Terms: BDY, Cued Operation, ELS, ETESD, FAS, HTSS, KBSF, Kinematic Battlespace, Local Assessment of Engagement, PATHS, QRS, RV Temperature, SBV Sensor, Space-Based Sensor, SSS, Stereo, TSS, WAS
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Defense - Mission Capable Vehicle.
DoD Missile Defense Agency - Cite This Source - This Definition - Browse Related Terms: BGV, BTTV, BV, CDV, Commit, CTV, FDSV, FMTV, ISV, I.V., IVHS, MTTV, OMV, OTV, PBV, RSAV, RSV, Singlet, SNDV, STRV, SV, TAV
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Weather - Mesoscale Discussion- When conditions actually begin to shape up for severe weather, SPC (Storm Prediction Center) often issues a Mesoscale Discussion statement anywhere from roughly half an hour to several hours before issuing a weather watch. SPC also puts out MCDs for hazardous winter weather events on the mesoscale, such as locally heavy snow, blizzards and freezing rain (see below). MCDs are also issued on occasion for heavy rainfall, convective trends, and other phenomena, when the forecaster feels he/she can provide useful information that is not readily available or apparent to field forecasters. MCDs are based on mesoscale analysis and interpretation of observations and of short term, high resolution numerical model output. The MCD basically describes what is currently happening, what is expected in the next few hours, the meteorological reasoning for the forecast, and when/where SPC plans to issue the watch (if dealing with severe thunderstorm potential). Severe thunderstorm MCDs can help you get a little extra lead time on the weather and allow you to begin gearing up operations before a watch is issued. The MCD begins with a numerical string that gives the LAT/LON coordinates of a polygon that loosely describes the area being discussed.
NOAA National Weather Service - Cite This Source - This Definition - Browse Related Terms: Mesoscale Discussion, PFD, RSN, Tropical Weather Discussion
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Telecommunications - The message digest algorithm used in PGP is the MD5 Message Digest Algorithm, placed in the public domain by RSA Data Security, Inc. MD5's designer, Ronald Rivest, writes this about MD5: "It is conjectured that the difficulty of coming up with two messages having the same message digest is on the order of 2^64 operations, and that the difficulty of coming up with any message having a given message digest is on the order of 2^128 operations. The MD5 algorithm has been carefully scrutinized for weaknesses. It is, however, a relatively new algorithm and further security analysis is of course justified, as is the case with any new proposal of this sort. The level of security provided by MD5 should be sufficient for implementing very high security hybrid digital signature schemes based on MD5 and the RSA public-key cryptosystem."
ATIS - Cite This Source - This Definition - Browse Related Terms: Digital Signature Standard (DSS), MD5 (Message Digest Algorithm #5), repudiation, signatory
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Defense - Missile Defense Barrel Integration Center.
DoD Missile Defense Agency - Cite This Source - This Definition - Browse Related Terms: ASMDC, DEFSMAC, ESMC, JS&MDWC, LMMA, MDDC, MDSC, MDSTC, Missile Defense National Team, Battle Management, Command and Control, and Communications (MDNTB), SMC
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Microsoft Exchange 2003 - An instance of a database implemented in Exchange. A single MDB is identified as a mailbox store or public folder store, depending on the type of data that it stores. [Exchange 2003]
Microsoft - Cite This Source - This Definition - Browse Related Terms: Anonymous User, BadMail folder, folder tree, Information Store Viewer, mailbox store, Organizational Forms Library, Permission, public folder, public folder hierarchy, public folder replication, public folder store, replicas, resource, Storage group