Table 1 Daily properties of the discharge cycles during winter 2012/13.

From: The seasonal evolution of subglacial drainage pathways beneath a soft-bedded glacier

Cycle number

DOY

Phase I

Phase II

Phase III

Phase IV

Days with low/no melt

Days with high melt

Days with low melt but high discharge

Low melt, intermediate discharge

Duration (days)

Mean melt (m3) (mean rain m3)

Mean discharge (m3) (mean rain m3)

Duration (days)

Threshold melt (m3)

Discharge (m3) Inc. discharge PI to PII (mean rain m3)

Duration (days)

Max discharge (m3) Mean discharge (m3) Inc. discharge PII to PIII (mean rain m3)

Duration (days)

Discharge at end of cycle (m3) (mean rain m3)

1

298–315

11

9.50 × 102

5.29 × 104

1

1.70 × 104

1.10 × 105

4

1.92 × 105

1

1.67 × 104

   

(0)

   

3.36 × 104

 

1.62 × 105

 

(0)

       

(0)

 

4.84 × 104

  
         

(221)

  

2

316–328

9

2.12 × 103

1.01 × 104

1

1.46 × 104

2.53 × 104

1

8.71 × 104

1

2.04 × 104

   

(0)

   

1.35 × 104

 

6.18 × 104

 

(0)

       

(0)

 

(2 × 103)

  

3

329–362

24

1.98  × 101

9.82 × 103

4

2.25 × 104

9.92 × 104

4

2.31 × 105

1

1.59 × 104

   

(0)

   

4.95 × 104

 

1.15 × 105

 

(0)

       

(3.7 × 104)

 

4.50 × 104

  
         

(0)

  

4

363–14

10

5.03 × 103

8.28 × 103

2

2.51 × 104

4.39 × 104

4

1.96 × 105

1

4.76 × 104

   

(7.7 × 102)

   

3.18 × 104

 

1.29 × 105

 

(0)

       

(8.6 × 103)

 

4.46 × 104

  
         

(65)

  

5

15–22

3

4.64 × 103

2.71 × 104

1

3.12 × 104

5.14 × 104

3

2.17×105

1

-

   

(103)

   

3.95 × 104

 

1.89 × 105

 

(0)

       

(0)

 

-

  
         

(86)

  

6

23–43

16

5.40 × 102

2.31 × 103

1

3.34 × 104

1.77 × 105

1

3.89 × 104

1

-

   

(0)

   

-

 

2.12 × 105

 

(0)

       

(5.5 × 104)

 

(409)

  

7

43–61

7

2.37 × 103

1.89 × 104

7

3.26 × 104

2.25 × 105

3

1.67 × 105

1

5.04 × 104

   

(72)

   

-

 

9.50 × 104

 

(0)

       

(2.0 × 105)

 

3.74 × 105

  
         

(2.94 × 104)

  

Mean(s.d.)

17.8 (7.8)

12.4 (7.9)

2.47 × 103 (2.30 × 103)

1.15 × 104 (9.28 × 103)

1.8 (1.3)

2.55 × 104 (7.61 × 103)

1.82 × 104 (1.38 × 104)

2.6 (1.5)

2.19 × 105 (9.14 × 104)

1

2.80 × 104 (1.72 × 104)

         

1.79 × 105 (1.09 × 104)

  
       

3.36 × 104 (1.52 × 104)

 

9.09 × 104 (8.13 × 104)

  
   

(1.8 × 102)

   

(2.0 × 104)

   

(0)

   

(3.36 × 102)

   

(6.11 × 104)

 

1.79 × 105 (1.09 × 105)

  
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