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WMO OSCAR  |  Theme: Cryosphere

Theme: Cryosphere

Requirements defined for Variables related to Theme Cryosphere  (42)

This tables shows all related requirements. For more operations/filtering, please consult the full list of Requirements
Note: In reading the values, goal is marked blue, breakthrough green, threshold orange
Application-dependent Technical Priority (ATP) Magenta and Relative priority of the attributes Red

Id Variable Layer App Area ATP Uncertainty Layer/s Quality Coverage Quality Stability / decade Hor Res Ver Res Obs Cyc Timeliness Coverage Conf Level Val Date Source General Comment Application Area Comment Horizontal Coverage Comment Observation Comment Performance Comment
7 Sea-ice cover Sea surface CLIC (deprecated) 10 %
13 %
20 %
1 km
2.2 km
10 km
1 y
2 y
4 y
30 d
43 d
90 d
Global ocean tentative 1998-10-29 WCRP
8 Sea-ice cover Sea surface CLIC (deprecated) 5 %
7 %
10 %
25 km
39.7 km
100 km
24 h
46 h
7 d
7 d
11 d
30 d
Global ocean reasonable 1998-10-29 WCRP
9 Sea-ice elevation Sea surface CLIC (deprecated) 1 cm
1.4 cm
3 cm
1 km
2.2 km
10 km
1 y
2 y
4 y
30 d
43 d
90 d
Global ocean tentative 1998-10-29 WCRP
10 Sea-ice surface temperature Sea surface CLIC (deprecated) 1 K
1.3 K
2 K
100 km
200 km
500 km
12 h
15 h
24 h
24 h
30 h
2 d
Global ocean reasonable 1998-10-29 WCRP
11 Sea-ice thickness Sea surface CLIC (deprecated) 100 cm
126 cm
200 cm
200 km
300 km
500 km
7 d
12 d
30 d
30 d
45 d
90 d
Global ocean tentative 1998-10-29 WCRP
12 Snow cover Land surface CLIC (deprecated) 10 %
13 %
20 %
1 km
2.9 km
25 km
24 h
41 h
5 d
7 d
11 d
30 d
Global land reasonable 1998-10-29 WCRP
13 Snow water equivalent Land surface CLIC (deprecated) 5 mm
8 mm
20 mm
10 km
13.6 km
25 km
24 h
41 h
5 d
7 d
11 d
30 d
Global land tentative 1998-10-29 WCRP
47 Snow cover Land surface 2.9 Agricultural Meteorology 2 %
4 %
10 %
1 km
2.2 km
10 km
5 d
6 d
7 d
24 h
44 h
6 d
Global land reasonable 2003-10-20 ET ODRRGOS Evaluation of crop wintering
48 Snow water equivalent Land surface 2.9 Agricultural Meteorology 5 mm
23.2 mm
500 mm
30 km
2.2 km
10 km
7 d
11 d
30 d
24 h
46 h
7 d
Global land reasonable 2003-10-20 ET ODRRGOS Evaluation of soil water storage in spring
108 Snow cover Land surface Climate-AOPC (deprecated) 10 %
13 %
20 %
100 km
200 km
500 km
24 h
2 d
7 d
6 h
12 h
24 h
Global land firm 2007-07-19 AOPC For model assimilation. Decadal changes may be of order 5% (N. Nicholls et al. 1996 Observed Climate Variability and Change. Chapter 2 of Climate Change 1995 (IPCC Second Assessment).)
109 Snow water equivalent Land surface Climate-AOPC (deprecated) 5 mm
6.5 mm
10 mm
100 km
200 km
500 km
24 h
2 d
7 d
6 h
12 h
24 h
Global land firm 2007-07-19 AOPC
202 Sea-ice cover Sea surface CLIVAR (deprecated) 2 %
3 %
5 %
15 km
25 km
50 km
24 h
36 h
3 d
3 d
4 d
7 d
Global ocean reasonable 1998-10-29 WCRP
220 Snow cover Land surface GEWEX (deprecated) 10 %
20 %
50 %
15 km
50 km
250 km
24 h
2 d
7 d
30 d
45 d
90 d
Global land reasonable 1998-10-29 WCRP
221 Snow water equivalent Land surface GEWEX (deprecated) 5 mm
10 mm
20 mm
15 km
50 km
250 km
12 h
24 h
7 d
30 d
45 d
90 d
Global land tentative 1998-10-29 WCRP
293 Sea-ice cover Sea surface 2.1 Global Numerical Weather Prediction and Real-time Monitoring 5 %
10 %
20 %
5 km
15 km
100 km
3 h
24 h
5 d
3 h
24 h
5 d
Global ocean firm 2009-02-10 John Eyre
294 Sea-ice surface temperature Sea surface 2.1 Global Numerical Weather Prediction and Real-time Monitoring 0.5 K
1 K
4 K
5 km
15 km
250 km
60 min
3 h
12 h
6 min
30 min
6 h
Global ocean reasonable 2009-02-10 John Eyre
295 Sea-ice thickness Sea surface 2.1 Global Numerical Weather Prediction and Real-time Monitoring 20 cm
50 cm
100 cm
15 km
50 km
250 km
24 h
5 d
30 d
24 h
5 d
30 d
Global ocean tentative 2009-02-10 John Eyre
296 Sea-ice type Sea surface 2.1 Global Numerical Weather Prediction and Real-time Monitoring 0.25 Classes -1
0.333 Classes -1
0.5 Classes -1
10 km
25 km
100 km
3 h
24 h
5 d
3 h
24 h
5 d
Global ocean tentative 2009-02-10 John Eyre
299 Snow cover Land surface 2.1 Global Numerical Weather Prediction and Real-time Monitoring 10 %
20 %
50 %
5 km
15 km
100 km
3 h
24 h
5 d
3 h
24 h
5 d
Global land firm 2009-02-10 John Eyre
300 Snow water equivalent Land surface 2.1 Global Numerical Weather Prediction and Real-time Monitoring 2 mm
10 mm
20 mm
5 km
15 km
100 km
3 h
24 h
5 d
3 h
24 h
5 d
Global land reasonable 2009-02-10 John Eyre
371 Sea-ice cover Sea surface 2.2 High-Resolution Numerical Weather Prediction 5 %
10 %
20 %
5 km
10 km
40 km
60 min
3 h
12 h
60 min
2 h
6 h
Global ocean reasonable 2011-07-29 JF Mahfouf
372 Sea-ice surface temperature Sea surface 2.2 High-Resolution Numerical Weather Prediction 0.5 K
1 K
4 K
5 km
10 km
40 km
60 min
3 h
12 h
60 min
3 h
12 h
Global ocean tentative 2011-07-29 JF Mahfouf
373 Sea-ice thickness Sea surface 2.2 High-Resolution Numerical Weather Prediction 20 cm
50 cm
100 cm
2 km
10 km
40 km
12 h
24 h
2 d
12 h
24 h
3 d
Global ocean speculative 2011-07-29 T Montmerle
375 Snow cover Land surface 2.2 High-Resolution Numerical Weather Prediction 5 %
15 %
20 %
1 km
5 km
20 km
60 min
3 h
12 h
60 min
3 h
12 h
Global land reasonable 2010-02-01 JF Mahfouf
376 Snow water equivalent Land surface 2.2 High-Resolution Numerical Weather Prediction 5 mm
8 mm
20 mm
0.5 km
2 km
20 km
60 min
3 h
6 h
60 min
3 h
24 h
Global land tentative 2010-02-01 JF Mahfouf
445 Sea-ice cover Sea surface 2.3 Nowcasting / Very Short-Range Forecasting 10 %
13 %
20 %
5 km
10 km
50 km
24 h
3 d
24 d
24 h
2 d
7 d
Global ocean firm 2013-04-03 P. Ambrosetti
446 Snow cover Land surface 2.3 Nowcasting / Very Short-Range Forecasting 10 %
13 %
20 %
5 km
10 km
50 km
60 min
6 h
24 h
60 min
2 h
6 h
Global land reasonable 2013-04-03 P. Ambrosetti
561 Sea-ice cover Sea surface Climate-OOPC (deprecated) 5 %
6 %
10 %
12 km
25 km
100 km
24 h
2 d
7 d
3 h
6 h
24 h
Global ocean firm 2007-07-19 OOPC
562 Sea-ice thickness Climate-OOPC (deprecated) 0.1 cm
0.2 cm
1 cm
100 km
170 km
500 km
24 h
2 d
7 d
24 h
3 d
24 d
Global reasonable 2007-07-19 OOPC
665 Glacier cover Land surface Climate-TOPC (deprecated) 5 %
7 %
10 %
30 m
45 m
100 m
356 d
1 y
5 y
360 d
1 y
2 y
Global land firm 2007-07-19 TOPC Glacier inventory
666 Glacier topography Land surface Climate-TOPC (deprecated) 10 cm
22 cm
100 cm
30 m
45 m
100 m
356 d
1 y
5 y
360 d
1 y
2 y
Global land firm 2007-07-19 TOPC Glacier inventory
675 Permafrost Land surface Climate-TOPC (deprecated)

10 
0.25 km
0.85 km
10 km
24 h
36 h
5 d
24 h
36 h
5 d
Global land firm 2007-07-19 TOPC Permafrost extent including seasonally-frozen ground
677 Snow cover Land surface Climate-TOPC (deprecated) 5 %
7 %
10 %
0.1 km
0.45 km
10 km
24 h
3 d
30 d
30 h
3 d
15 d
Global land firm 2007-07-19 TOPC For impact and hydrological cycle studies. Snow cover area
699 Snow depth Land surface 2.3 Nowcasting / Very Short-Range Forecasting 0.1 cm
0.5 cm
2 cm
5 km
10 km
15 km
10 min
60 min
24 h
10 min
60 min
24 h
Global land reasonable 2013-04-15 P. Ambrosetti Over populated area and along transport routes requirements are more strict than elsewhere.
758 Snow water equivalent 2.4 Sub-Seasonal to Longer Predictions 5 mm
10 mm
20 mm
50 km
100 km
500 km
24 h
2 d
7 d
24 h
2 d
7 d
Global land tentative 2009-01-19 Laura Ferranti
824 Snow cover Land surface 2.5 Atmospheric Climate Monitoring 5 % 4 % 0.1 km
1 km
24 h Global reasonable 2019-09-30 GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016) Requirements in the GCOS-200 IP, Annex A, are only specified at the goal level.
825 Snow water equivalent Land surface 2.5 Atmospheric Climate Monitoring 10 mm 10 mm 1 km 24 h Global reasonable 2019-09-30 GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016) Requirements in the GCOS-200 IP, Annex A, are only specified at the goal level.
826 Glacier cover Land surface 2.5 Atmospheric Climate Monitoring 5 % 15 m
30 m
1 y Global reasonable 2019-09-30 GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016) Requirements in the GCOS-200 IP, Annex A, are only specified at the goal level.
846 Sea-ice cover Sea surface 2.5 Atmospheric Climate Monitoring 5 % 5 % 1 km
15 km
7 d Global reasonable 2019-10-15 GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016) Requirements in the GCOS-200 IP, Annex A, are only specified at the goal level.
847 Sea-ice thickness Sea surface 2.5 Atmospheric Climate Monitoring 10 cm 25 km 30 d Global reasonable 2019-10-15 GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016) Requirements in the GCOS-200 IP, Annex A, are only specified at the goal level.
848 Sea-ice motion Sea surface 2.5 Atmospheric Climate Monitoring 1 km*d-1 5 km 7 d Global reasonable 2019-10-15 GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016) Requirements in the GCOS-200 IP, Annex A, are only specified at the goal level.
860 Snow depth Land surface 2.5 Atmospheric Climate Monitoring 0.1 cm 0.1 cm 1 km 24 h Global reasonable 2020-03-05 TOPC GCOS-200: The Global Observing System for Climate: Implementation Needs (Published 2016)