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: 2023-04-20

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

Model vs. observations, ice type area extent contingency tables

Date: 2023-04-14:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 0 0 0
FY ice 0 21736 596
MY ice 0 7218 8212
...date precedes bulletin

Date: 2023-04-16:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 0 0 0
FY ice 43 21503 558
MY ice 3 7190 8203
...date precedes bulletin

Date: 2023-04-18:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 0 0 0
FY ice 129 21917 383
MY ice 11 7859 7729
...date precedes bulletin

Date: 2023-04-20:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 5 0 0
FY ice 166 21623 428
MY ice 56 7633 7856
observations
open FY ice MY ice
m
d
l
open 4 0 0
FY ice 165 21471 388
MY ice 58 7785 7896

Date: 2023-04-22:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 0 0 0
FY ice 0 0 0
MY ice 0 0 0
observations
open FY ice MY ice
m
d
l
open 0 0 0
FY ice 0 0 0
MY ice 0 0 0

Date: 2023-04-24:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 3 1 0
FY ice 102 21950 294
MY ice 32 8676 7145
observations
open FY ice MY ice
m
d
l
open 4 2 0
FY ice 99 21789 258
MY ice 34 8836 7181

Date: 2023-04-26:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 12 0 0
FY ice 78 21569 289
MY ice 28 8248 7224
observations
open FY ice MY ice
m
d
l
open 18 2 0
FY ice 63 21378 248
MY ice 37 8437 7265

Date: 2023-04-28:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 16 15 0
FY ice 66 21431 394
MY ice 10 7889 7390
observations
open FY ice MY ice
m
d
l
open 15 4 0
FY ice 69 21198 323
MY ice 8 8133 7461


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