Wrong maximum values of surface air maximum temperature (Tmax) at some points for BoM data
1. Brief description:
Some coastal grid points may display unrealistic Tmax values. All of the spurious Tmax points are flagged as being ocean points based on the POAMA*'s land-sea mask.
2. Recommendation:
To eliminate the spurious values, use Tmax over land points only, based on POAMA's land-sea mask .
* POAMA stands for Predictive Ocean Atmosphere Model for Australia.
Problem with sea-ice cover in CMA re-forecast and near real-time data
1. Brief description:
The sea-ice cover data in the CMA re-forecasts is incorrect in the ECMWF S2S database. CMA confirmed that there was a problem in their data processing procedure which main effect was to have sea-ice values equal to 0 or 1 instead of covering the range 0 to 1.
This same problem occurred for the near real-time forecasts of 2 to 5 January 2015 and 2016
2. Recommendation:
We recommend not to download the CMA sea-ice cover re-forecast (all dates) or near real-time (periods in Jan 2015 and 2016) until the correct data has been fully uploaded in the ECMWF S2S data server. There will be an announcement when the problem has been fixed.Problem with sea-ice cover in BoM re-forecast data
1. Brief description:
The sea-ice cover data in the BoM re-forecasts is incorrect. The climatological evolution of sea ice in the BoM re-forecats is for 1 January through to early March (62 day re-forecasts) for all start dates. Therefore, the sea ice coverage is wrong in the S2S archive, except for the forecasts that start on or near 1 January
2. Recommendation:
It is recommended to not download the BoM sea-ice cover re-forecast data until the correct data has been fully uploaded in the ECMWF S2S data server. There will be an announcement when the problem has been fixed.