Home->SIRAL Mode

Documentation

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Unavailability periods

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Performance

 Crossovers

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L2 Parameters

 SIRAL Mode

 Surface Type

 Height

 SSHA

 Backscatter

 Quality Flags

 Aux. Corrections

 Waveform Peakiness

 Freeboard

 Snow Depth

 Snow Density

 Sea Ice Conc.

 Mispointing Angle

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L2I Parameters

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Further Info

ESA Cryosat Site

L2 SIRAL Mode Monitoring

IPF Baseline:

E D C B A

Phase:

Operational Commissioning

Cryosat L2 data includes a SIRAL Mode indicator (field 2) for each 20Hz record. For each measurement, Cryosat may be operating in LRM, SAR, SARIN or SARIN Degraded mode depending upon the instrument health and current operational geographical mode mask (see latest example v3.9 ).
The operational geographical mode mask is updated weekly (every Monday at 00:00 UCT), primarily to account for changes in sea-ice extent, and we therefore expect to mainly observe changes in the SAR/LRM mode extent between data takes in areas of sea-ice.

Note that for 30 day data takes, the mode mask will normally change during the data take period and therefore some areas will have a mixed mode.

This tool provides statistics and global and polar map plots of the SIRAL mode for each 7-day and 30-day data take. 7-day data takes are aligned to the mode mask change dates.

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Select Data Take Period:

7-days 30-days

View Global Trend

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Operational Phase (Baseline-B)

Data take	Timespan	%LRM SAR SARin Unk	Global Map	North Polar	South Polar
53	25/1/15 -> 23/2/15	59.24 / 27.15 / 13.4 / 0.2	View	View	View
52	26/12/14 -> 24/1/15	58.24 / 28.02 / 13.52 / 0.2	View	View	View
51	26/11/14 -> 25/12/14	58.37 / 27.8 / 13.6 / 0.21	View	View	View
50	27/10/14 -> 25/11/14	59.25 / 26.79 / 13.75 / 0.19	View	View	View
49	27/9/14 -> 26/10/14	60.08 / 25.56 / 14.16 / 0.18	View	View	View
48	28/8/14 -> 26/9/14	64.43 / 21.84 / 13.53 / 0.17	View	View	View
47	29/7/14 -> 27/8/14	67.17 / 20.49 / 12.15 / 0.17	View	View	View
46	29/6/14 -> 28/7/14	66.29 / 20.74 / 12.78 / 0.18	View	View	View
45	30/5/14 -> 28/6/14	58.99 / 25.75 / 15.06 / 0.19	View	View	View
44	30/4/14 -> 29/5/14	58.18 / 26.77 / 14.83 / 0.2	View	View	View
43	31/3/14 -> 29/4/14	58.93 / 27.22 / 13.63 / 0.21	View	View	View
42	1/3/14 -> 30/3/14	59.33 / 27.53 / 12.92 / 0.21	View	View	View
41	30/1/14 -> 28/2/14	59.53 / 27.77 / 12.48 / 0.2	View	View	View
40	31/12/13 -> 29/1/14	58.94 / 28.29 / 12.55 / 0.21	View	View	View
39	1/12/13 -> 30/12/13	57.89 / 29.43 / 12.45 / 0.2	View	View	View
38	1/11/13 -> 30/11/13	59.12 / 27.9 / 12.77 / 0.19	View	View	View
37	2/10/13 -> 31/10/13	59.99 / 27.1 / 12.7 / 0.19	View	View	View
36	2/9/13 -> 1/10/13	65.86 / 20.33 / 13.62 / 0.18	View	View	View
35	1/9/13 -> 3/9/13	65.99 / 20.21 / 13.6 / 0.18	View	View	View
34	4/7/13 -> 2/8/13	65.77 / 20.43 / 13.59 / 0.18	View	View	View
33	4/6/13 -> 3/7/13	66.79 / 19.26 / 13.79 / 0.14	View	View	View
32	5/5/13 -> 3/6/13	67.64 / 18.9 / 13.27 / 0.16	View	View	View
31	5/4/13 -> 4/5/13	66.42 / 19.86 / 13.53 / 0.18	View	View	View
30	6/3/13 -> 4/4/13	67.14 / 19.12 / 13.54 / 0.18	View	View	View
29	4/2/13 -> 5/3/13	66.57 / 19.49 / 13.74 / 0.18	View	View	View
28	5/1/13 -> 3/2/13	66.14 / 20.08 / 13.58 / 0.18	View	View	View
27	6/12/12 -> 4/1/13	65.39 / 21.13 / 13.29 / 0.18	View	View	View
26	6/11/12 -> 5/12/12	65.14 / 20.95 / 13.72 / 0.17	View	View	View
25	7/10/12 -> 5/11/12	65.8 / 20.52 / 13.49 / 0.17	View	View	View
24	7/9/12 -> 6/10/12	66.16 / 20.04 / 13.62 / 0.15	View	View	View
23	8/8/12 -> 6/9/12	65.98 / 20.25 / 13.6 / 0.15	View	View	View
22	9/7/12 -> 7/8/12	65.96 / 20.16 / 13.71 / 0.16	View	View	View
21	9/6/12 -> 8/7/12	65.97 / 20.29 / 13.56 / 0.16	View	View	View
20	10/5/12 -> 8/6/12	65.85 / 20.39 / 13.57 / 0.16	View	View	View
19	10/4/12 -> 9/5/12	68.49 / 17.15 / 14.17 / 0.17	View	View	View
18	11/3/12 -> 9/4/12	68.74 / 16.88 / 14.18 / 0.18	View	View	View
17	10/2/12 -> 10/3/12	71.74 / 15.47 / 12.6 / 0.16	View	View	View
16	11/1/12 -> 9/2/12	68.36 / 17.03 / 14.4 / 0.19	View	View	View
15	12/12/11 -> 10/1/12	67.63 / 17.97 / 14.18 / 0.19	View	View	View
14	12/11/11 -> 11/12/11	67.55 / 18.12 / 14.13 / 0.18	View	View	View
13	13/10/11 -> 11/11/11	67.81 / 17.74 / 14.25 / 0.18	View	View	View
12	13/9/11 -> 12/10/11	69.92 / 16.52 / 13.38 / 0.16	View	View	View
11	14/8/11 -> 12/9/11	68.72 / 16.98 / 14.11 / 0.17	View	View	View
10	15/7/11 -> 13/8/11	68.37 / 17.22 / 14.23 / 0.17	View	View	View
9	15/6/11 -> 14/7/11	68.54 / 17.25 / 14.02 / 0.18	View	View	View
8	16/5/11 -> 14/6/11	68.35 / 17.37 / 14.08 / 0.18	View	View	View
7	16/4/11 -> 15/5/11	68.57 / 17.15 / 14.08 / 0.18	View	View	View
6	17/3/11 -> 15/4/11	69.19 / 16.47 / 14.14 / 0.18	View	View	View
5	15/2/11 -> 16/3/11	71.1 / 15.76 / 12.93 / 0.19	View	View	View
4	16/1/11 -> 14/2/11	69 / 16.8 / 13.94 / 0.24	View	View	View
3	17/12/10 -> 15/1/11	67.98 / 17.78 / 13.98 / 0.24	View	View	View
2	17/11/10 -> 16/12/10	67.81 / 18.02 / 13.92 / 0.23	View	View	View
1	18/10/10 -> 16/11/10	68.87 / 17.33 / 13.56 / 0.22	View	View	View

Note: data takes may be missing if they have not been processed by this IPF Baseline-B

©UCL 2010 Mullard Space Science Laboratory