|
CALM SITE R5 |
VASKINY DACHI |
|
Site code |
R5 |
|
Site name |
Vaskiny Dachi Grid |
|
CAPS I Metadata form |
GGD182 |
|
CAPS II Metadata form |
GGD313_R5 |
|
Responsible for data submission |
Marina
Leibman |
|
Email Address |
mleibman”-at-“online.ru |
|
Institution/Organization |
Earth
Cryosphere Institute SB RAS, Moscow |
|
Location description |
West
Siberia |
|
Location Lat. |
70 deg. 17
min. N |
|
Location Lon. |
68 deg. 54 min.
E |
|
Elevation avg. (m) |
29 |
|
Methods Grid |
100 |
|
Methods Other |
Air Temperature, Soil temperature, Soil Moisture, Frost
Heave |
|
Landscape Description |
Fluvial-marine
plain dissected by lakes and ravines |
|
Vegetation /Classification |
Mesic
prostrate dwarf shrub-lichen-shrub moss; shrub-grass tundra |
|
Soils (or Material) |
Gleyic
Cryosols (sandy and clayey) |
|
Thaw depth measurements (year started)
|
1993 |
|
Air temp. measurements (year started) |
1998 |
|
Snow cover measurements (year started) |
NA |
|
soil temp. measurements (year started) |
1996 |
|
soil moisture measurements (year started) |
2005 |
|
general description of soil moisture (dry, moist, wet,
saturated) |
Dry to wet |
|
soil texture: if non organic describe texture, if organic
indicate thickness of organic layer (cm) |
organic layer thickness 8 cm, silty sands to silty clays |
SITE
DESCRIPTION
This site is located in the central Yamal Peninsula and
occupies the top and slopes of the alluvial-marine plain. Its altitude ranges
from 15 to 32 m. The embedded 100 × 100 m CALM site lies in the
26–32 m altitude range and occupies the top and southeastern slope of the
hill. The upper portion of the lithological section at the hilltop is composed
of sands and silts. Saline clays are frequent on slopes. The hilltop is
occupied by well-drained polygonal tundra, in combination with blowout sands.
Slopes are covered by shrub tundra with abnormally tall willows, as well as
poorly vegetated shear surfaces associated with modern landslides. The total thickness
of organic cover (moss, lichen, turf, and peat) does not exceed 8 cm.
SOIL DESCRIPTION:
(predominant texture, i.e., ‘sand’, ‘gravel’,
‘peat’, etc.): Gleyic
Cryosols (sandy and clayey)
SAMPLING DESIGN AND METHOD:
1-ha grid consists of a square array
of surveyed permanent stakes separated by 10 m, yielding an 11 × 11 array
of sampling nodes on each grid. Thaw depth and snow sampling was conducted
twice by manual probing at each stake. The two values for each sampling point
are averaged, yielding a maximum of 121 data points per grid per probing date.
The active layer was not measured at locations where grid points intersect
rocks or deep water.
REFERENCES:
Vasiliev, A.A., Leibman, M.O. &
Moskalenko, N.G. 2008. Active layer monitoring in West Siberia under the CALM
II program. Proceedings of the Ninth
International Conference on Permafrost, Fairbanks,Alaska, June 29–July 3,
2008, Vol.2, 1815-1820
Melnikov, E.S.,
Vasiliev, A.A., Leybman, M.O., Moskalenko, N.G. 2005. Active-Layer Dynamics in
West Siberia. Cryosphere of Earth 9, 2, 23 -32 (in Russian, abstract in
English).
Melnikov, E.S.,
Leibman, M.O., Moskalenko, N.G. and Vasiliev, A.A. 2004. Active-layer
monitoring in the cryolithozone of West Siberia. Polar Geography 28 (4),
267-287.