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L2 Parameters

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L2I Parameters

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Further Info

ESA Cryosat Site

L2 SIRAL Mode Monitoring

IPF Baseline:

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 examples v3.3 v3.2).
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
31	5/4/13 -> 4/5/13	66.58 / 19.71 / 13.51 / 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	68.45 / 17.17 / 14.16 / 0.19	View	View	View

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

©UCL 2013, Mullard Space Science Laboratory