Quote:
Originally Posted by strongmanmike
Looking at the ACCESS-R Meteogram What is the relationship between the %ages for Low, Middle and High cloud cover and the Total cloud cover figure? ie. the three cloud cover columns (low, middle and high) often don't add up to the Total cloud cover %, why is that? Eg. Tues night in Canberra is showing zero% Low, Middle and High cloud up to 01:00 but 72% Total cloud from 22:00..?
Mike
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This situation has been observed a number of times already and is most likely associated with the recent upgrade to the ACCESS-R model. I believe this anomaly is due to the model trying to predict fog conditions and somehow counting this value towards the total cloud cover. It appears the model is not correctly handling some fog/low cloud conditions. This situation is currently under investigation and will be clarified once the updated model documentation is released by the Bureau of Meteorology.