Vegetation

Total Summer

Surficial

Surficial

Topographic

Slope

Aspect

Plant communities

Soil

Soil

Thaw Depth

Site

Vol. soil moisture (%),

Microrelief

Canopy

Moss

Site

Coordinates

Type

Warmth (oC)

Geology

Geomorphology

Position

(deg.)

(deg.)

(% of grid pts)

pH

Units

(cm ± s.d.)

Moisture

top mineral horizon

height (cm)

height (cm)

depth (cm)

Ivotuk 1

N68 28.23

MAT

29.3 1

Glaciofluvial

Frost scars

Mid sideslope

4

80

Betnan-Erivag: 83%

4.9

Ruptic Pergelic

25.9 ± 9.7

Mesic to

46

24 ± 7

29 ± 8

3.7 ± 2.9

W155 44.52

1999

deposits

Betnan-Carbig: 13%

Cryaquept,

n=242

subhygric;

n=1

Anthjur-Luzarc: 4%

acid and

6/26/99

Hygric in

Histic

depressions

Pergelic

Cryoquept, acid

Ivotuk 2

Shrubby

Glaciofluvial

Well-developed hillslope

Lower side

5

120

Betnan-Erivag: 34%

Pergelic

7.4±3.1

Eriang-Salpla:

40

15 ± 7

42 ± 17

4.7 ± 2.5

deposits

water tracks

slope and

Eriang-Salpla: 29%

Cryoquept,

n=440

Mesic to subhygric

n=1

drainage

Rubcha-Betnan: 16%

acid and

Rubcha-Betnan: Mesic

channels

Nonacidic tundra: 8%

Histic

Calstr-Eriang: hygric

Others: 13%

Pergelic

Cryoquept, acid

Ivotuk 2

N68 28.75

MAT

29.3 1

Glaciofluvial

Well developed

Lower side

5

120

Betnan-Erivag: 34%

n.d

Pergelic

21.1 ±7.7

Eriang: mesic

40

15 ± 7

42 ±1 7

4.7± 2.5

W155 44.14

1999

deposits

hill slope

slope and

Eriang-Salpla: 29%

Cryaquept,

n=242

to subhygric

water tracks

drainage

Rubcha-Betnan: 16%

acid and

6/25/99

Rubcha: mesic

channels

Non-acidic tundra: 8%

Histic

Calstr-Eriang:

Other: 13%

Pergelic

hygric

Cryoquept, acid

Ivotuk 3

N68 28.72

MNT

29.3 1

Hill slope

Gelifluction features

Mid-side slope

6

145

Dryint-Carbig-Equarv: 49%

6.8

Pergelic

25.8 ± 11.9

Dryint-Carbig-

34

17 ±  10

14 ± 7

2.4 ± 1.3

W155 44.28

1999

colluvium from

and flarks;

Dryint-Carbig: 20%

Cryaquept,

n=242

Equarv:

n=1

small limestone

Sorted and non-sorted

Novgla-Dryint: 11%

nonacid;

6/25/99

Mesic to

outcrop

stripes, and

Lecepi-Dryint: 7%

Pergelic

subhygric

frost scars

Calstr-Noscom: 6%

Cryoboroll; and

Others: 7%

Ruptic Pergelic

Cryaquept,

nonacid

Ivotuk 4

Glaciofluvial

Featureless, less than

Hill crest or

2

98

Sphlen-Erivag: 100%

Pergelic

4.4

7.7±2.9

Mesic to subhygric

38

19 ± 6

21 ± 6

3.7 ± 2.6

deposits

20% frost scars

shoulder

Cryaquept

n=484

n=1

Ivotuk 4

N68 28.82

MAT

29.3 1

Glaciofluvial

Featureless, less

Hill crest

2

98

Sphlen-Erivag:100%

4.4

Pergelic

20.7 ± 5.5

mesic to

38

19 ±  6

21 ± 6

3.7 ± 2.6

W155 44.65

1999

deposits

than 20% frost scars

or shoulder

cryaquept

n=242

subhygric

n=1

6/25/99

1 www.uaf.edu/water/projects/atlas/atlas.html