The creation of quality controlled homogenised datasets from the databank white paper is now available for discussion. When making posts please remember to follow the house rules. Please also take time to read the full pdf before commenting and where possible refer to one or more of section titles, pages and line numbers to make it easy to cross-reference your comment with the document.
The recommendations are reproduced below:
• To use daily maximum/minimum temperature as the ‘base’ data set to which adjustments are made, with data at monthly and longer timescales derived from the daily data (adjusted where appropriate) rather than adjusted separately.
• To ensure that all detection and adjustment of inhomogeneities is fully documented, allowing reassessments to be made in the future (e.g. if new techniques are developed or previously unknown data or metadata become available).
• To carry out an objective evaluation of known methods for homogenisation/adjustment, in collaboration with the COST action;
• To establish a testbed of data for this purpose (see white paper 9);
• To seek to ensure that all sources of uncertainty are well quantified and defined.