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

Validation of ice type - Full domain

Bulletin date: 2023-04-13

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

Model vs. observations, ice type area extent contingency tables

Date: 2023-04-07:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 85243 1609 0
FY ice 562 55145 2467
MY ice 7 12772 12040
...date precedes bulletin

Date: 2023-04-09:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 85369 1613 1
FY ice 598 57704 1878
MY ice 10 13557 11517
...date precedes bulletin

Date: 2023-04-11:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 85133 2037 0
FY ice 454 58366 1836
MY ice 7 13540 10195
...date precedes bulletin

Date: 2023-04-13:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 85331 2205 0
FY ice 334 57922 1388
MY ice 0 13387 11309
observations
open FY ice MY ice
m
d
l
open 85334 2221 0
FY ice 331 57452 1393
MY ice 0 13841 11304

Date: 2023-04-15:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 85928 1739 3
FY ice 455 57010 1346
MY ice 1 13475 10967
observations
open FY ice MY ice
m
d
l
open 85951 1744 3
FY ice 432 56607 1344
MY ice 1 13873 10969

Date: 2023-04-17:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 86282 1596 0
FY ice 498 55669 1486
MY ice 33 13571 10927
observations
open FY ice MY ice
m
d
l
open 86118 1659 2
FY ice 665 55147 1460
MY ice 30 14030 10951

Date: 2023-04-19:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 86498 1652 0
FY ice 434 56416 1143
MY ice 59 13841 10802
observations
open FY ice MY ice
m
d
l
open 86290 1666 0
FY ice 637 55804 1116
MY ice 64 14439 10829

Date: 2023-04-21:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 86292 1591 91
FY ice 591 56640 1821
MY ice 62 14213 10446
observations
open FY ice MY ice
m
d
l
open 86066 1687 119
FY ice 800 55914 1751
MY ice 79 14843 10488


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