Ice survey to SST L2P producers
The GHRSST High Latitude Technical Advisory Group (HL-TAG) would like detailed information about this to be able to advise GHRSST on how sea ice should be treated. The purpose of this survey is to better understand how different GHRSST SST L2P producers handle the issue of sea ice in their production chains.
So therefore we kindly ask you to provide us with the requested information and other relevation information. If you have written documentation that you can share (like ATBDs, PUMs, publications)
- Which sensors/instruments are you processing SST from that covers areas with sea ice?
- Do you use an external data source to mask out areas with sea ice (like a passive microwave-based ice concentration/edge product)? If so, please describe the procedure used, which ice product is used and how often the ice product you use is updated (twice daily, daily etc).
- Do you use masking/retrieval procedures that includes (directly or in-directly) tests for masking out sea ice (like cloud masking for IR)? If so, can you describe the tests used for identifying sea ice?
- Do you use specific tests (in addition to the cloud mask) based on on-board instruments to mask out sea ice? If so, can you describe the procedures?
- If you have sea ice masking procesdures, are they different at day time, twilight and night time?
- Have you done any validation work to document how your sea ice masking
procedures work? - Do you process SST over lakes, and if so, how do you deal with lake ice?
- Do you (or have you considered) to include retrieval of ice surface temperature in (or parallel with) your SST processing?
If possible, we would like to receive the answers wll in advance of the GHRSST Science Team meeting in Lima in June, so if possible before 10. June.
Send your answers to: Steinar Eastwood, s.eastwood_at_met.no
(Last Updated: 11-05-2010)