N80 Freezing Degree Days thru Feb 2, 2017

Freezing Degree Days thru Feb 2, 2017
(Climatology = 1958 to 2002)

Accumulated FDDs 

Climatology: 3095.9

2016-7:          1833.0

Anomaly:     -1262.9

Implied new ice thickness to date:
Per Lebedev:
Climo:   1.755 m
2016-7:  1.288 m

Per Bilello:
Climo:   1.408 m
2016-7:  1.039 m

Accumulated Freezing Degree Days N80 thru Jan 26, 2017

Accumulated Freezing Degree Days N80 thru Jan 26, 2017:
Climatology: 2899.4
2016:            1683.9
Anomaly:     -1215.4

Implied new ice thickness to date:
Per Lebedev:
Climo: 1.688 m
2016:   1.225 m

Per Billelo
Climo:  1.355 m
2016:    0.989 m

Note: Anyone claiming a "recovery" in extent is ignoring new ice thickness this year is 27% less than climatology and 10 to 15% less than the average of the past decade.  The accumulated FDD anomaly is now greater than at *any* time in the DMI N80 dataset with 40% of the freezing season still to go.

Accumulated Freezing Degree Days N80 thru Dec 29, 2016

Accumulated Freezing Degree Days N80 thru Dec 29, 2016:
Climatology: 2141.1
2016:             1138.6
Anomaly:     -1002.5

Implied new ice thickness to date:
Per Lebedev:
Climo: 1.412 m
2016:   0.973 m

Per Billelo
Climo:  1.137 m
2016:    0.788 m