active layer
(redirected from Active soil layer)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.
Mentioned in
?
References in periodicals archive
?
Seven clone libraries were constructed from the uppermost active soil layer to the lowermost permafrost layer at 10 cm intervals.
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.
Encyclopedia browser
?
- ▲
- Active Measurement Project
- Active Membership
- active mirror
- active missile
- active monitor
- Active Monitoring
- active network
- Active noise control
- active object
- active optics
- active oxygen method
- active permafrost
- Active Power
- active prominence
- active prominence region
- Active Reconfiguring Message
- active region
- active regions
- Active Repeater
- active RFID tag
- active runway
- active satellite
- Active Server Pages
- active site
- active sludge
- Active soil layer
- Active solar
- Active solar energy
- active solar energy system
- Active solar heating
- Active solar power
- active solar system
- Active solar water heater
- 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
- ▼
Full browser
?
- ▲
- Active Session History
- Active Setup Controls
- Active Setup Temp Folders
- Active Shaft Grounding System
- Active Ship File
- Active Shipping Data
- Active shooter
- Active Shooter/Hostile Event
- Active Shooter/Threat Training Program
- active shooters
- active shutter glasses
- Active Signal Integrity Architecture
- Active Single Christian Scientists of America
- active site
- active site
- active site
- active site
- active site
- active site
- active sites
- active sites
- active sites
- active sites
- Active Sites Environmental Monitoring Program
- Active Skid Control
- 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
- Active solar energy system
- Active solar energy systems
- active solar heating
- active solar heating
- Active solar heating system
- Active solar power
- active solar system
- Active Solar Thermal Industry Group
- Active solar water heater
- 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 Speech Level
- active splint
- Active Splitting Point
- Active Sports and Youth Recreation Commission
- ▼