mattsymbios
commented
1 week ago From the draft WGClimate Coordinated Action Plan:
Recommendation #19: The CEOS Land Surface Imaging-Virtual Constellation (LSI-VC) to coordinate on the formulation of future high-resolution missions and seamless continuity of sustained Land Surface Temperature CDRs. Action #2018-22: LSI-VC to formulate future high-resolution missions for Land Surface Temperature climate data records aiming at seamless continuity of CDRs. Status: Open After discussion at LSI-VC #15 in 2024 WGClimate decided to keep the action open. LSI-VC proposed to update the surface temperature PFS with a new stability metric to bring it in line with GCOS requirements metrics. For USGS and ESA missions LSI-VC members will coordinate on this formulation.
PFS Version(s)
5.0
Requirement number(s)
No response
Description
To build a Climate Data Record (CDR) for LST, data records from multiple sensors need to be consistently processed and harmonised. Consistency in processing includes retrieval algorithms, auxiliary data, cloud masking and uncertainty models.
LSI-VC-15-24: LSI-VC to consider adding a long-term stability parameter to future iterations of the Surface Temperature/Combined Optical PFS.
Steve Covington (USGS) noted that USGS considers stability over the orbit (minute scale) rather than decades. USGS is not currently measuring stability in the way GCOS is thinking. USGS does not include a long-term stability metric for their products.