Tag Archives: GHCN

GHCNV4 September Temperature is either 0.93C or 0.70C

My calculation uses  a 3D integration of GHCNV4 and HadSST3  temperature data.  If I use GHCN V4C (corrected data) I get 0.93C for September,  whereas if instead I use the uncorrected V4U I get 0.70C. In the first case 2020 … Continue reading

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Each monthly update of V4C (corrected)  changes past results as well as adding the new monthly temperatures. This is due to their homogenisation algorithm.  I had already noticed that V4 gave warmer results than V3 but found that the uncorrected … Continue reading

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July global temperature anomaly unchanged from June at 0.79C

My 3D calculation of the global temperature anomaly for July 2020 using GHCN-V4 and HadSST3 is 0.79C (baseline 1961-1990), the same value as for June. However the spatial distribution has changed significantly. Here are the monthly trends and the annual … Continue reading

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