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Sigma KEE - AirMass
AirMass(air mass)

appearance as argument number 1
-------------------------


(subclass AirMass AirStream) Weather.kif 1261-1261 Air mass is a subclass of air stream
(documentation AirMass EnglishLanguage "An AirMass,in meteorology, is a volume of air defined by its temperature and humidity. Air masses cover many hundreds or thousands of square miles, and adapt to the characteristics of the surface below them. Colder air masses are termed polar or arctic, while warmer air masses are deemed tropical. Continental and superior air masses are dry, while maritime and monsoon air masses are moist. WeatherFronts separate air masses with different density (temperature or moisture) characteristics.[Wikipedia]") Weather.kif 1262-1268 Air mass is a subclass of air stream

appearance as argument number 2
-------------------------


(termFormat EnglishLanguage AirMass "air mass") Weather.kif 1269-1269
(termFormat ChineseLanguage AirMass "气团") Weather.kif 1270-1270
(termFormat ChineseTraditionalLanguage AirMass "氣團") Weather.kif 1271-1271

antecedent
-------------------------


(=>
    (and
        (instance ?W WeatherFront)
        (instance ?F AirStream)
        (eventLocated ?W ?F)
        (connects ?F ?A ?B)
        (instance ?A AirMass)
        (instance ?B AirMass))
    (not
        (equal ?A ?B)))
Weather.kif 1246-1255 If All of the following hold: (1) X is an instance of weather front (2) Y is an instance of air stream (3) X is located at Y (4) Y connects Z and W (5) Z is an instance of air mass (6) W is an instance of air mass, then equal Z and W
(=>
    (and
        (instance ?M AirMass)
        (part ?A ?M)
        (part ?B ?M)
        (not
            (equal ?A ?B))
        (airTemperature ?A
            (MeasureFn ?X CelsiusDegree))
        (airTemperature ?B
            (MeasureFn ?Y CelsiusDegree)))
    (approximateValue ?X ?Y))
Weather.kif 1273-1284 If All of the following hold: (1) X is an instance of air mass (2) Y is a part of X (3) Z is a part of X (4) equal Y and Z (5) W celsius degree(s) is an air temperature of Y (6) V celsius degree(s) is an air temperature of Z, then the approximate value of W is V
(=>
    (and
        (instance ?M AirMass)
        (part ?A ?M)
        (part ?B ?M)
        (not
            (equal ?A ?B))
        (relativeHumidity ?A ?X)
        (relativeHumidity ?B ?Y))
    (approximateValue ?X ?Y))
Weather.kif 1286-1295 If All of the following hold: (1) X is an instance of air mass (2) Y is a part of X (3) Z is a part of X (4) equal Y and Z (5) W is a relative humidity of Y (6) V is a relative humidity of Z, then the approximate value of W is V
(=>
    (and
        (instance ?WF WarmFront)
        (instance ?W AirMass)
        (origin ?WF ?W)
        (airTemperature ?W
            (MeasureFn ?X CelsiusDegree))
        (instance ?C AirMass)
        (path ?WF ?C)
        (airTemperature ?C
            (MeasureFn ?Y CelsiusDegree)))
    (greaterThan ?X ?Y))
Weather.kif 1303-1314 If All of the following hold: (1) X is an instance of warm front (2) Y is an instance of air mass (3) X originates at Y (4) Z celsius degree(s) is an air temperature of Y (5) W is an instance of air mass (6) W is path along which X occurs (7) V celsius degree(s) is an air temperature of W, then Z is greater than V
(=>
    (and
        (instance ?CF ColdFront)
        (instance ?C AirMass)
        (origin ?CF ?C)
        (airTemperature ?C
            (MeasureFn ?X CelsiusDegree))
        (instance ?W AirMass)
        (path ?W ?W)
        (airTemperature ?W
            (MeasureFn ?Y CelsiusDegree)))
    (lessThan ?X ?Y))
Weather.kif 1323-1334 If All of the following hold: (1) X is an instance of cold front (2) Y is an instance of air mass (3) X originates at Y (4) Z celsius degree(s) is an air temperature of Y (5) W is an instance of air mass (6) W is path along which W occurs (7) V celsius degree(s) is an air temperature of W, then Z is less than V
(=>
    (and
        (instance ?OF OccludedFront)
        (instance ?C AirMass)
        (origin ?OF ?C)
        (airTemperature ?C
            (MeasureFn ?X CelsiusDegree))
        (instance ?W AirMass)
        (airTemperature ?W
            (MeasureFn ?Y CelsiusDegree))
        (lessThan ?X ?Y)
        (moves ?OF ?W))
    (orientation ?C ?W Below))
Weather.kif 1342-1354 If All of the following hold: (1) X is an instance of occluded front (2) Y is an instance of air mass (3) X originates at Y (4) Z celsius degree(s) is an air temperature of Y (5) W is an instance of air mass (6) V celsius degree(s) is an air temperature of W (7) Z is less than V (8) W moves during X, then Y is below to W


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