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Permafrost, Ground Ice, and Soils Database in Japan. Compiled by Norikazu Matsuoka (University of Tsukuba). East Ongul Island (Syowa Station). Blue: Coastal sites Red: Inland sites. Prince Olav Coast. James Ross Island. S ør Rondane Mountains. Riiser-Larsen Mts., Enderby Land.

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permafrost ground ice and soils database in japan
Permafrost, Ground Ice, and Soils Database in Japan

Compiled by Norikazu Matsuoka

(University of Tsukuba)

slide2

East Ongul Island

(Syowa Station)

Blue: Coastal sites

Red: Inland sites

Prince Olav Coast

James Ross Island

Sør Rondane Mountains

Riiser-Larsen Mts.,

Enderby Land

Seymour Island

Thiel Mountains

+

South Pole

Ellesworth Mountains

Periglacial Research Sites

by Japanese Scientists

slide3

East Ongul Island

(Syowa Station)

Japan-Argentina

Joint Team (1987-)

Prince Olav Coast

James Ross Island

Sør RondaneMountains

Seymour Island

Riiser-Larsen Mts.,

Enderby Land

Japanese Antarctic

Research Expedition

(1956-)

Thiel Mountains

+

South Pole

Antarctic Walk

Environmental Research

Expedition (1991-1993)

Ellesworth Mountains

Periglacial Research Sites

by Japanese Scientists

slide4

ALT >80 cm

MAGT ~-10˚C

ALT 60 cm

MAGT -10˚C

ALT 50- 130 cm

MAGT -3 to -7˚C

ALT 65 cm

MAGT -7˚C

ALT 8- 40 cm

MAGT -17 ˚C

ALT 100- 120 cm

MAGT -4 to -7 ˚C

+

South Pole

ALT 15 cm

MAGT -20 to -22 ˚C

ALT: Active Layer Thickness

MAGT: Mean Annual Ground

Temperature

Ground Temperature

slide5

Rock glaciers

Rock glaciers

Ice wedge

polygons

Large sorted circles

+

South Pole

Major permafrost features

slide6

Frost heave:

max. 10 mm

(mainly diurnal)

Solifluction

Rock glacier creep

Frost heave:

max. 20 mm

(seasonal)

Frost heave:

<2 mm (diurnal)

Frost creep:

<1.5 cm/yr

<17 cm deep

• Only at humid sites

Solifluction :

no movement

+

South Pole

Monitoring of

Periglacial Processes

slide7

Soil: Profile, Granulometry,

Mineralogy, Salts

Rock: Chemistry of varnish,

Weathering index, Salts

+

South Pole

Chemistry of

weathered rocks

and varnish

Rock Weathering & Soils

slide8
Contacts (Data Reporters):
  • Antarctic Peninsula (Seymour & James Ross)

Dr. T. Sone (Hokkaido University)

  • Ellsworth Mountains & Polar Plateau

Dr. K. Yoshikawa (Univ. Alaska-Fairbanks)

  • Enderby Land

Dr. H. Miura (National Institute of Polar Research)

  • Prins Olav Coast (Japanese Main Base)

Dr. T. Sawagaki (Hokkaido Univ.)

  • Sør Rondane Mountains

Dr. N. Matsuoka (Univ. Tsukuba)