BOREHOLE METADATA FORM (09/2006)

 

BOREHOLENAME Selawik School

 

COUNTRYUSA

 

LATITUDEAND LONGITUDE  (degrees, minutes)

N 66∫36.329   W 160∫00.612

 

BOREHOLEDEPTH (m) AND MEASUREMENT INTERVAL IF DIFFERENT FROM DEPTH 6m (AT, GT 0,0.5, 1, 2m)

 

YEARDRILLED April 13, 2007

 

METHODOF DRILLING 2"SS auger with gas power head

 

DURATIONOF DRILLING (hours/days) 1 day

 

TYPEOF AND DISTANCE FROM HEAT SOURCES (surface disturbance, m)                   

Natural[ ] no disturbance [ ] lake           [ ] river      [] other naturaldisturbance (describe)

[] anthropogenic (describe type of disturbance; pipeline, storage area,reservoir, etc.)

 

PERIODOF PRIOR MEASUREMENTS AND FREQUENCY (starting date; annually, monthly, weekly,or daily etc.) not yet (hourly by logger)

 

METHODOF TEMPERATURE MEASUREMENT (thermistor probe, permanent cable [provide numberof sensors and nominal depth], fluid filled hole and its level, diameter andtype of casing , depth of casing, etc.) 8 Cable with two loggers

1”metal tube

 

PERMAFROSTZONE            Continuous[X]              Discontinuous[  ]           Sporadic [ ]

Isolated[ ]         Mountain[ ]

 

PERMAFROST           [x] PRESENT              [] ABSENT

  

PERMAFROSTTHICKNESS (if known, m)

 

MEANANNUAL GROUND TEMPERATURE AT OR NEAR DEPTH OF ZERO ANNUAL AMPLITUDE (°C)– report  value for mostrecent year or 12 month interval     °C

 

Depthof zero annual amplitude (or depth of measurement reported above)  (m)

(not zero amp.)

 

 

 

Range(if applicable) of mean annual ground temperature over observation period (°C)

 

 

ELEVATION(above sea level , m) ca.  m

 

SITESLOPE (angle, aspect)   levellocation

 

SITETOPOGRAPHY AND LOCAL RELIEF [x ]Valley  [ ]Top of hill or ridge  [  ]Plain

Localrelief (m)

 

LANDFORMOR GEOMORPHOLOGICAL DESCRIPTION AND HISTORY  OF SITE (age)

none glaciated fluvial plain: ice-rich silt

 

GEOLOGY(brief description of bedrock, sediments, including types and estimate of icecontent volume [high, medium, low])

Organic layer was around 0.2m. Silt 0.2-6m

Icelayer  5.0-5.2m

 

DOMINANTSITE VEGETATION    

[] Polar desert []Tundra  [x ] ShrubTundra [x ] Forest Tundra [ ]Coniferous Forest 

[ ]Deciduous Forest [ ] Grassland [ ] Other (describe)

 

AIRTEMPERATURE AND SNOW COVER THICKNESS/DENSITY MEASUREMENTS AT THE BOREHOLE SITE(indicate frequency of observations):

Airtemperature: Yes [x ] No [ ] hourly  Snow thickness: Yes[ ] No[x]  Density: Yes [ ] No[x ]

 

ACCESSIBILITYOF THE BOREHOLE        

Modeof transportation (helicopter, road, offroad vehicle, river, etc.) road

Distancefrom road access (km) 0.1 km            

 

NAMEAND LOCATION OF CLOSEST CLIMATE STATION (latitude, longitude, and distance fromborehole, km) – provide (if available) mean monthly air temperature andsnow depth of reporting interval for mean annual ground temperature

Kotzebue

 

OTHERCOMMENTS: (use additional space)