Theme: Cryosphere

Requirements defined for Variables related to Theme Cryosphere  (57)

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
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
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
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
402 Sea-ice cover Sea surface Hydrology 10 %
13 %
20 %
1 km
3.7 km
50 km
24 h
2 d
12 d
24 h
38 h
4 d
Global ocean firm 2003-10-20 ET ODRRGOS
403 Sea-ice elevation Sea surface Hydrology 1 cm
1.3 cm
2 cm
1 km
3.7 km
50 km
24 h
2 d
12 d
24 h
38 h
4 d
Global ocean firm 2003-10-20 ET ODRRGOS
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
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
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
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
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
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
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
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
232 Sea-ice cover Sea surface Climate Modelling Research (deprecated) 5 %
10 %
50 %
15 km
50 km
250 km
24 h
3 d
15 d
30 d
45 d
90 d
Global ocean reasonable 1998-10-29 WCRP
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
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 Prediciton 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
375 Snow cover Land surface 2.2 High-Resolution Numerical Weather Prediciton 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
401 Permafrost Land surface Hydrology
8.5 
25 
0.1 km
1 km
100 km
6 h
14 h
3 d
6 h
17 h
6 d
Global land reasonable 2003-10-20 ET ODRRGOS
404 Snow cover Land surface Hydrology 5 %
8 %
20 %
0.1 km
1 km
100 km
24 h
46 h
7 d
24 h
44 h
6 d
Global land reasonable 2003-10-20 ET ODRRGOS
405 Snow status (wet/dry) Land surface Hydrology 5 HR, FAR
2 HR, FAR
0.1 km
0.464 km
10 km
30 min
4 h
12 d
60 min
5 h
6 d
Global land reasonable 2003-10-20 ET ODRRGOS
406 Snow water equivalent Land surface Hydrology 5 mm
8 mm
20 mm
0.1 km
0.464 km
10 km
24 h
46 h
7 d
24 h
44 h
6 d
Global land reasonable 2003-10-20 ET ODRRGOS
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
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
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.
824 Snow cover Land surface 2.5 Atmospheric Climate Monitoring and Forecasting 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 and Forecasting 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 and Forecasting 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 and Forecasting 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 and Forecasting 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 and Forecasting 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 and Forecasting 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)
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
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
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
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
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
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
372 Sea-ice surface temperature Sea surface 2.2 High-Resolution Numerical Weather Prediciton 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
376 Snow water equivalent Land surface 2.2 High-Resolution Numerical Weather Prediciton 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
480 Sea-ice motion Sea surface Ocean Applications 1 km*d-1
3 km*d-1
5 km*d-1
1 km
25 km
25 km
24 h
24 h
24 h
3 d
4 d
7 d
Global ocean tentative 2011-03-07 JCOMM (Ali Mafimbo) Marine climatology
481 Sea-ice motion Sea surface Ocean Applications 0.5 km*d-1
0.5 km*d-1
0.5 km*d-1
0.1 km
0.5 km
1 km
24 h
24 h
3 d
24 h
24 h
3 d
Costal areas tentative 2016-03-22 JCOMM (Guimei Liu) Sea-ice services
484 Sea-ice surface characteristics Sea surface Ocean Applications 1 %
10 %
10 %
0.5 km
1 km
1 km
24 h
24 h
24 h
3 d
4 d
7 d
Global ocean tentative 2011-03-07 JCOMM (Ali Mafimbo) Marine climatology
486 Snow depth Sea surface Ocean Applications 0.005 cm
0.02 cm
0.05 cm
5 km
10 km
15 km
24 h
24 h
24 h
3 d
4 d
7 d
Global ocean tentative 2011-03-07 JCOMM (Ali Mafimbo) Marine climatology
533 Sea-ice cover Sea surface Ocean Applications 5 %
10 %
15 %
0.1 km
0.1 km
0.1 km
24 h
24 h
3 d
24 h
24 h
3 d
Costal areas tentative 2014-03-16 JCOMM (Guimei Liu) Sea-ice services
534 Sea-ice thickness Sea surface Ocean Applications 10 cm
30 cm
50 cm
25 km
5 km
0.5 km
24 h
3 d
6 d
15 d
30 d
90 d
Global ocean tentative 2011-03-07 JCOMM (Ali Mafimbo) Marine climatology
535 Sea-ice thickness Sea surface Ocean Applications 0.1 cm
0.1 cm
0.1 cm
0.5 km
0.5 km
0.5 km
24 h
24 h
24 h
24 h
24 h
3 d
Costal areas tentative 2014-02-18 JCOMM (Guimei Liu) Sea-ice services
573 Snow water equivalent Land surface SIAF (deprecated) 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
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
373 Sea-ice thickness Sea surface 2.2 High-Resolution Numerical Weather Prediciton 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