active layer
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active layer [′ak·tiv ′lā·ər]

(geology)

That part of the soil which is within the suprapermafrost layer and which usually freezes in winter and thaws in summer. Also known as frost zone.

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No references found			At Spitsbergen, Hallet's group found just this relationship: The diameter of a sorted circle was 210 centimeters while the active soil layer measured about 1 meter deep. Halos of stone by Weisburd, Stefi / Science News			active master file active master item active material active matrix active matrix display Active Measurement Project Active Membership active mirror active monitor Active Monitoring active network active object active oxygen method active permafrost Active Power active prominence active prominence region Active Reconfiguring Message active region Active Repeater active RFID tag active satellite Active Server Pages active site active sludge Active soil layer active solar energy system active solar system active solid active sonar active sound attenuator active sound cancellation active sound control Active Streaming Format active substrate active Sun active system active termination active tracking system active transducer active transport active vibration suppression active volcano active voltage active window active workings active-cord mechanism active-matrix liquid-crystal display active-RC filter active-RLC filter ActiveMovie			Active Server Pages Network Active Server Recovery active service Active Service Base Date Active Service Control Protocol Active Service List Active Service System Active Service Unit Active Session History Active Shaft Grounding System Active Ship File Active Shipping Data Active Shooter/Threat Training Program active shutter glasses Active Signal Integrity Architecture Active Single Christian Scientists of America active site active site active site active site active site active sites active sites active sites Active Sites Environmental Monitoring Program Active Slot Ring Antenna active sludge Active Smoke Control Active Smoking Attributable Years of Potential Life Lost Active Soil Depressurization Active soil layer Active solar Active solar energy system active solar heating active solar system Active Solar Thermal Industry Group active solid Active Solutions Consulting Group active sonar Active Sonar Acquisition and Processing System Active Sonar Data Analysis & Conversion System Active Sonar Frequency Analysis and Recording active sound attenuator active sound cancellation active sound control Active space probes Active space probes Active Spacecraft Potential Control Experiment Active species Active species Active species active specific immunotherapy Active Speech Level active splint Active Sports and Youth Recreation Commission Active Sports Retailers Active Squeeze Film Damper Active Stability Management

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active layer (redirected from Active soil layer)

active layer
(redirected from Active soil layer)