Description of algorithm
Interpretation of results
Full domain
American sector
  Ice type distr., stat.s
  Contingency tables
European sector
Asian sector

Validation of ice type - American sector

Bulletin date: 2021-12-16

Data source: OSI SAF N.H. sea ice type

Model vs. observations, ice type area extent contingency tables

Date: 2021-12-10:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 5582 726 0
FY ice 196 19244 1900
MY ice 0 3129 10146
...date precedes bulletin

Date: 2021-12-12:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 4801 1115 0
FY ice 281 18975 2092
MY ice 0 3328 10073
...date precedes bulletin

Date: 2021-12-14:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 4532 589 0
FY ice 210 19122 2454
MY ice 0 3257 10574
...date precedes bulletin

Date: 2021-12-16:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 4472 501 0
FY ice 277 19069 2202
MY ice 0 3537 10488
observations
open FY ice MY ice
m
d
l
open 4459 505 0
FY ice 290 19018 2281
MY ice 0 3584 10409

Date: 2021-12-18:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 3559 929 0
FY ice 404 19466 2180
MY ice 0 3669 10706
observations
open FY ice MY ice
m
d
l
open 3562 901 0
FY ice 401 19434 2249
MY ice 0 3729 10637

Date: 2021-12-20:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 1702 1007 0
FY ice 320 21156 1970
MY ice 11 3978 10544
observations
open FY ice MY ice
m
d
l
open 1791 1834 6
FY ice 231 20703 2069
MY ice 11 3604 10439

Date: 2021-12-22:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 989 1067 0
FY ice 330 21845 1906
MY ice 0 4430 10460
observations
open FY ice MY ice
m
d
l
open 1070 1938 0
FY ice 249 21450 2227
MY ice 0 3954 10139

Date: 2021-12-24:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 677 823 0
FY ice 383 22357 1981
MY ice 0 4840 10261
observations
open FY ice MY ice
m
d
l
open 707 1637 0
FY ice 353 22074 2312
MY ice 0 4309 9930


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