{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:49:37.382414", "data_source": "ERA5", "website": "http://wexa.jamstec.go.jp", "Author": "Patrick Martineau"}, "event_id": {"name": "Event ID", "description": "A unique identifier based on: beginning_date, end_date, longitude, and latitude", "value": "2012-Feb-18_to_2012-Feb-20_103.5_13.0"}, "event_label": {"name": "Event label", "description": "Integer-valued grid identifier that uniquely labels each detected extreme event in space and time, consistent with the corresponding labels stored in the NetCDF dataset.", "value": 2012020001055}, "status": {"name": "Status", "description": "An ongoing event denotes an event that lasts up to the latest data available. These events are subject to change as newer data is added.", "value": false}, "start_date": {"name": "Start date", "description": "First date on which grid points are under the influence of an event", "value": "February 18 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "February 20 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 3}, "figures_available": {"name": "Figures available", "description": "True if figures were pre-generated for this event", "value": true}, "detection_var": {"name": "Detection variable", "description": "Variable used for the detection scheme", "value": "t2m"}, "event_type": {"name": "Event type", "description": "Type of the event detected", "value": "Cold spell"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 54124.52105241945}, "countries_affected": {"name": "Countries affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the countries affected by an event during its lifetime.", "value": ["Cambodia", "Thailand"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["S.E.Asia"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Asia"]}, "oceans_affected": {"name": "Ocean basins affected", "description": "The ArcGIS geocoding API (https://developers.arcgis.com/rest/geocode/) is used to obtain a list of all the ocean basins affected by an event during its lifetime.", "value": []}, "center_lat": {"name": "Center latitude", "description": "Latitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 13.0}, "center_lon": {"name": "Center longitude", "description": "Longitude of the maximum time-integrated standardized t2m anomalies. Only t2m of the same polarity as the events are considered (positive T2m for a HW, for instance). The centre is thus representative of both the severity and persistence of anomalies.", "value": 103.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "103.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 101.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 104.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 12.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 14.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-02-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.25, 13.5], [101.47, 14.03], [101.82, 14.18], [101.97, 14.53], [102.5, 14.75], [102.75, 14.65], [102.82, 14.68], [102.97, 15.03], [103.5, 15.25], [104.03, 15.03], [104.18, 14.68], [104.53, 14.53], [104.68, 14.18], [105.03, 14.03], [105.25, 13.5], [105.04, 13.0], [105.25, 12.5], [105.03, 11.97], [104.5, 11.75], [104.0, 11.96], [103.5, 11.75], [103.25, 11.85], [103.0, 11.75], [102.47, 11.97], [102.32, 12.32], [101.97, 12.47], [101.82, 12.82], [101.47, 12.97], [101.25, 13.5]]]]}, "2012-02-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.25, 13.5], [101.47, 14.03], [101.82, 14.18], [101.97, 14.53], [102.5, 14.75], [102.75, 14.65], [102.82, 14.68], [102.97, 15.03], [103.5, 15.25], [104.03, 15.03], [104.18, 14.68], [104.53, 14.53], [104.68, 14.18], [105.03, 14.03], [105.25, 13.5], [105.04, 13.0], [105.25, 12.5], [105.03, 11.97], [104.5, 11.75], [104.0, 11.96], [103.5, 11.75], [103.25, 11.85], [103.0, 11.75], [102.47, 11.97], [102.32, 12.32], [101.97, 12.47], [101.82, 12.82], [101.47, 12.97], [101.25, 13.5]]]]}, "2012-02-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[101.25, 13.5], [101.47, 14.03], [101.82, 14.18], [101.97, 14.53], [102.5, 14.75], [102.75, 14.65], [102.82, 14.68], [102.97, 15.03], [103.5, 15.25], [104.03, 15.03], [104.18, 14.68], [104.53, 14.53], [104.68, 14.18], [105.03, 14.03], [105.25, 13.5], [105.04, 13.0], [105.25, 12.5], [105.03, 11.97], [104.5, 11.75], [104.0, 11.96], [103.5, 11.75], [103.25, 11.85], [103.0, 11.75], [102.47, 11.97], [102.32, 12.32], [101.97, 12.47], [101.82, 12.82], [101.47, 12.97], [101.25, 13.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -4.185571225147328}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.8918475887519075}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.00408382143877, 25.1320029462413, 25.049831671671257]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.21029706677905, 22.79315964991082, 22.995633943079667]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-2.936593588041398, -2.830590161982665, -2.90835901623166]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-3.5969386613218717, -4.185571225147328, -3.5082051551611926]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.8785859110426522, -1.8218064577858963, -1.8847397134339527]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.2223067560697163, -2.227803955379588, -2.2532880933230173]}}