{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:57:32.138473", "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": "2014-Oct-31_to_2014-Nov-02_36.5_18.5"}, "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": 2014100001074}, "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": "October 31 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 02 2014"}, "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": 52559.17216393989}, "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": ["Sudan"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Sahara"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Africa"]}, "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": 18.5}, "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": 36.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "36.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 34.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 37.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 17.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 20.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.46, 19.5], [34.25, 20.0], [34.47, 20.53], [34.82, 20.68], [34.97, 21.03], [35.5, 21.25], [36.03, 21.03], [36.18, 20.68], [36.25, 20.65], [36.5, 20.75], [37.03, 20.53], [37.25, 20.0], [37.15, 19.75], [37.25, 19.5], [37.15, 19.25], [37.18, 19.18], [37.53, 19.03], [37.75, 18.5], [37.65, 18.25], [37.75, 18.0], [37.53, 17.47], [37.18, 17.32], [37.03, 16.97], [36.5, 16.75], [35.97, 16.97], [35.75, 17.5], [35.88, 17.8], [35.5, 17.96], [35.0, 17.75], [34.47, 17.97], [34.25, 18.5], [34.35, 18.75], [34.25, 19.0], [34.46, 19.5]]]]}, "2014-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.46, 19.5], [34.25, 20.0], [34.47, 20.53], [34.82, 20.68], [34.97, 21.03], [35.5, 21.25], [36.03, 21.03], [36.18, 20.68], [36.25, 20.65], [36.5, 20.75], [37.03, 20.53], [37.25, 20.0], [37.15, 19.75], [37.25, 19.5], [37.15, 19.25], [37.18, 19.18], [37.53, 19.03], [37.75, 18.5], [37.65, 18.25], [37.75, 18.0], [37.53, 17.47], [37.18, 17.32], [37.03, 16.97], [36.5, 16.75], [35.97, 16.97], [35.75, 17.5], [35.88, 17.8], [35.5, 17.96], [35.0, 17.75], [34.47, 17.97], [34.25, 18.5], [34.35, 18.75], [34.25, 19.0], [34.46, 19.5]]]]}, "2014-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[34.46, 19.5], [34.25, 20.0], [34.47, 20.53], [34.82, 20.68], [34.97, 21.03], [35.5, 21.25], [36.03, 21.03], [36.18, 20.68], [36.25, 20.65], [36.5, 20.75], [37.03, 20.53], [37.25, 20.0], [37.15, 19.75], [37.25, 19.5], [37.15, 19.25], [37.18, 19.18], [37.53, 19.03], [37.75, 18.5], [37.65, 18.25], [37.75, 18.0], [37.53, 17.47], [37.18, 17.32], [37.03, 16.97], [36.5, 16.75], [35.97, 16.97], [35.75, 17.5], [35.88, 17.8], [35.5, 17.96], [35.0, 17.75], [34.47, 17.97], [34.25, 18.5], [34.35, 18.75], [34.25, 19.0], [34.46, 19.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -3.165015412665582}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -2.0319030062254027}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.136464782048392, 24.345954908588794, 24.780771157656545]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.223020719732858, 21.153243596036987, 21.742587008788234]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.7727777925803991, -2.4315140572498737, -1.891417168845935]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-2.4750269529376965, -3.165015412665582, -2.528569942006584]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.543300973668343, -2.136568505323913, -1.6732518904194977]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-1.8058086375100146, -2.714431558131366, -2.0005940013656]}}