Home->SIRAL Mode

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Performance

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L2 Parameters

 SIRAL Mode

 Surface Type

 Height

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 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-E)

Data take	Timespan	%LRM SAR SARin Unk	Global Map	North Polar	South Polar
177	2/4/25 -> 1/5/25	67.79 / 18.45 / 13.74 / 0	View	View	View
176	3/3/25 -> 1/4/25	68.25 / 18.14 / 13.6 / 0	View	View	View
175	1/2/25 -> 2/3/25	68.43 / 18.16 / 13.4 / 0	View	View	View
174	2/1/25 -> 31/1/25	67.53 / 18.82 / 13.63 / 0	View	View	View
173	3/12/24 -> 1/1/25	66.5 / 19.84 / 13.65 / 0	View	View	View
172	3/11/24 -> 2/12/24	66.77 / 19.56 / 13.65 / 0	View	View	View
171	4/10/24 -> 2/11/24	67.21 / 19.21 / 13.57 / 0	View	View	View
170	4/9/24 -> 3/10/24	67.73 / 18.66 / 13.59 / 0	View	View	View
169	5/8/24 -> 3/9/24	67.32 / 18.73 / 13.94 / 0	View	View	View
168	6/7/24 -> 4/8/24	67.24 / 19.17 / 13.58 / 0	View	View	View
167	6/6/24 -> 5/7/24	67.29 / 19.11 / 13.58 / 0	View	View	View
166	7/5/24 -> 5/6/24	67.15 / 19.23 / 13.61 / 0	View	View	View
165	7/4/24 -> 6/5/24	67.86 / 18.5 / 13.62 / 0	View	View	View
164	8/3/24 -> 6/4/24	68.22 / 18.12 / 13.64 / 0	View	View	View
163	7/2/24 -> 7/3/24	68.23 / 18.17 / 13.59 / 0	View	View	View
162	8/1/24 -> 6/2/24	67.69 / 18.74 / 13.55 / 0	View	View	View
161	9/12/23 -> 7/1/24	66.67 / 19.73 / 13.59 / 0	View	View	View
160	9/11/23 -> 8/12/23	66.75 / 19.61 / 13.62 / 0	View	View	View
159	10/10/23 -> 8/11/23	67.13 / 19.31 / 13.54 / 0	View	View	View
158	10/9/23 -> 9/10/23	67.63 / 18.73 / 13.62 / 0	View	View	View
157	11/8/23 -> 9/9/23	67.58 / 18.83 / 13.58 / 0	View	View	View
156	12/7/23 -> 10/8/23	67.3 / 19.07 / 13.62 / 0	View	View	View
155	12/6/23 -> 11/7/23	67.27 / 19.14 / 13.58 / 0	View	View	View
154	13/5/23 -> 11/6/23	67.24 / 19.15 / 13.6 / 0	View	View	View
153	13/4/23 -> 12/5/23	67.07 / 19.24 / 13.67 / 0	View	View	View
152	14/3/23 -> 12/4/23	67.46 / 19.16 / 13.36 / 0	View	View	View
151	12/2/23 -> 13/3/23	68.15 / 18.63 / 13.21 / 0	View	View	View
150	13/1/23 -> 11/2/23	67.27 / 19.43 / 13.29 / 0	View	View	View
149	14/12/22 -> 12/1/23	66.42 / 20.26 / 13.31 / 0	View	View	View
148	14/11/22 -> 13/12/22	66.25 / 20.4 / 13.33 / 0	View	View	View
147	15/10/22 -> 13/11/22	66.52 / 20.14 / 13.33 / 0	View	View	View
146	15/9/22 -> 14/10/22	66.99 / 19.71 / 13.28 / 0	View	View	View
145	16/8/22 -> 14/9/22	67.03 / 19.72 / 13.24 / 0	View	View	View
144	17/7/22 -> 15/8/22	66.8 / 19.98 / 13.2 / 0	View	View	View
143	17/6/22 -> 16/7/22	66.78 / 19.99 / 13.21 / 0	View	View	View
142	18/5/22 -> 16/6/22	66.99 / 19.74 / 13.26 / 0	View	View	View
141	18/4/22 -> 17/5/22	67.05 / 19.58 / 13.36 / 0	View	View	View
140	19/3/22 -> 17/4/22	67.69 / 18.91 / 13.39 / 0	View	View	View
139	17/2/22 -> 18/3/22	67.93 / 18.71 / 13.34 / 0	View	View	View
138	18/1/22 -> 16/2/22	67.42 / 19.22 / 13.35 / 0	View	View	View
137	19/12/21 -> 17/1/22	66.65 / 20.02 / 13.31 / 0	View	View	View
136	19/11/21 -> 18/12/21	65.98 / 20.51 / 13.49 / 0	View	View	View
135	20/10/21 -> 18/11/21	66.48 / 20.24 / 13.26 / 0	View	View	View
134	20/9/21 -> 19/10/21	66.93 / 19.78 / 13.28 / 0	View	View	View
133	21/8/21 -> 19/9/21	67.46 / 19.5 / 13.03 / 0	View	View	View

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

©UCL 2010 Mullard Space Science Laboratory