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: 2023-04-20

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 85586 2006 23
FY ice 351 57646 1559
MY ice 0 13682 11129
...date precedes bulletin

Date: 2023-04-16:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 85903 1721 21
FY ice 569 56131 1780
MY ice 5 13454 11103
...date precedes bulletin

Date: 2023-04-18:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 86387 1669 0
FY ice 460 56100 1428
MY ice 18 13906 10857
...date precedes bulletin

Date: 2023-04-20:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 86340 1761 9
FY ice 557 56643 1217
MY ice 81 13634 10887
observations
open FY ice MY ice
m
d
l
open 86342 1783 10
FY ice 553 56110 1195
MY ice 83 14145 10908

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 86180 1772 66
FY ice 687 57132 1325
MY ice 113 15288 9350
observations
open FY ice MY ice
m
d
l
open 86102 1863 46
FY ice 750 56597 1279
MY ice 128 15732 9416

Date: 2023-04-26:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 85986 2092 114
FY ice 730 55740 1401
MY ice 120 14745 9568
observations
open FY ice MY ice
m
d
l
open 85904 2147 95
FY ice 797 55262 1357
MY ice 135 15168 9631

Date: 2023-04-28:

Best estimate Forecast
observations
open FY ice MY ice
m
d
l
open 86467 1880 171
FY ice 804 55111 1579
MY ice 90 14303 9943
observations
open FY ice MY ice
m
d
l
open 86387 1891 145
FY ice 887 54601 1495
MY ice 87 14802 10053


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