Precision-Decoding Database and Visualization
- [Google Maps Engine Link] Interactive visualization of precision-decoding results. Approximately 1700 stations outside of the United States and 300 within it are displayed. A limit of 2000 stations are displayed due to technical restrictions of the Google Maps Engine. Note that large deviations of the observed versus expected digit counts are suggestive of additional quality control issues such as digit-preference biases by operators.
- [GHCND_decode_results.mat (542 MB)] Detected precision for all stations reporting minimum and maximum daily temperature are archived in a large (542 MB) MATLAB file at this location. The file is compressed and contains:
- dates [1 x 60265] double array (MATLAB-formatted date values)
- station_codes [1 x 28824] cell array of strings (GHCND codes for each station in the dataset)
- station_lats [1 x 28824] double array (Latitudes for each station in the dataset)
- station_lons [1 x 28824] double array (Longitudes for each station in the dataset)
- precision_states_Tx [60265 x 28824] int16 array (Precision state detected by precision-decoding for each station Tx time series. Missing values and flagged values excluded from the analysis have values of -32768)
- precision_states_Tn [60265 x 28824] int16 array (Precision state detected by precision-decoding for each station Tn time series. Missing values and flagged values excluded from the analysis have values of -32768)
- state_info [1 x 6] cell array of strings (Labels for the precision state categories given in precision_states_Tx and precision_states_Tn)
Beware that precision_states_Tx and precision_states_Tn each require approximately 4 GB of memory when loaded. - [precision_decoder.tar.gz (1.4 MB)] MATLAB software package for precision-decoding, including several example input files.