L2 Freeboard Monitoring

IPF Baseline:

Phase:

Cryosat L2 data includes a SAR mode computed Sea Ice Freeboard calculation for each 20Hz record.

This tool provides polar plots of sea ice freeboard (orbit view, gridded mean, median and maximum values, histograms) for each 30-day data take.

Notes:

Freeboard is only available from Baseline-C onwards.
Freeboard can be a small negative value where there is sufficient snow loading on thin ice.
Freeboard is used in the calculation of sea ice thickness and volume. Near real time and seasonal thickness and volume data is now available from the CryoSat Operational Sea Ice Monitoring website courtesy of UCL/ESA and partner data providers.
Plots on this page show freeboard parameter values where the freeboard_error flag is not set

Operational Phase (Baseline-D)

Freeboard viewed as:


Data take	Time Span	North Polar Plot	South Polar Plot
133	21/8/21 -> 19/9/21	View	View
132	22/7/21 -> 20/8/21	View	View
131	22/6/21 -> 21/7/21	View	View
130	23/5/21 -> 21/6/21	View	View
129	23/4/21 -> 22/5/21	View	View
128	24/3/21 -> 22/4/21	View	View
127	22/2/21 -> 23/3/21	View	View
126	23/1/21 -> 21/2/21	View	View
125	24/12/20 -> 22/1/21	View	View
124	24/11/20 -> 23/12/20	View	View
123	25/10/20 -> 23/11/20	View	View
122	25/9/20 -> 24/10/20	View	View
121	26/8/20 -> 24/9/20	View	View
120	27/7/20 -> 25/8/20	View	View
119	27/6/20 -> 26/7/20	View	View
118	28/5/20 -> 26/6/20	View	View
117	28/4/20 -> 27/5/20	View	View
116	29/3/20 -> 27/4/20	View	View
115	28/2/20 -> 28/3/20	View	View
114	29/1/20 -> 27/2/20	View	View
113	30/12/19 -> 28/1/20	View	View
112	30/11/19 -> 29/12/19	View	View
111	31/10/19 -> 29/11/19	View	View
110	1/10/19 -> 30/10/19	View	View
109	1/9/19 -> 30/9/19	View	View
108	2/8/19 -> 31/8/19	View	View
107	3/7/19 -> 1/8/19	View	View
106	3/6/19 -> 2/7/19	View	View
105	4/5/19 -> 2/6/19	View	View

Please refer any problems to asm@mssl.ucl.ac.uk