{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:46:07.174204", "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": "2010-Nov-16_to_2010-Nov-18_17.5_4.0"}, "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": 2010110000690}, "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": "November 16 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 18 2010"}, "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": 64749.92973500118}, "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": ["Cameroon", "Central African Republic", "Congo"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["Central-Africa"]}, "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": 4.0}, "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": 17.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 14.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 18.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 2.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 5.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-11-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.75, 4.5], [13.97, 5.03], [14.5, 5.25], [15.03, 5.03], [15.18, 4.68], [15.25, 4.65], [15.32, 4.68], [15.47, 5.03], [16.0, 5.25], [16.53, 5.03], [16.68, 4.68], [16.75, 4.65], [16.82, 4.68], [16.85, 4.75], [16.75, 5.0], [16.97, 5.53], [17.5, 5.75], [17.75, 5.65], [18.0, 5.75], [18.53, 5.53], [18.68, 5.18], [19.03, 5.03], [19.25, 4.5], [19.15, 4.25], [19.25, 4.0], [19.15, 3.75], [19.25, 3.5], [19.03, 2.97], [18.5, 2.75], [18.25, 2.85], [18.0, 2.75], [17.7, 2.88], [17.53, 2.47], [17.0, 2.25], [16.47, 2.47], [16.32, 2.82], [16.25, 2.85], [16.0, 2.75], [15.5, 2.96], [15.0, 2.75], [14.47, 2.97], [14.25, 3.5], [14.35, 3.75], [14.32, 3.82], [13.97, 3.97], [13.75, 4.5]]]]}, "2010-11-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.75, 4.5], [13.97, 5.03], [14.5, 5.25], [15.03, 5.03], [15.18, 4.68], [15.25, 4.65], [15.32, 4.68], [15.47, 5.03], [16.0, 5.25], [16.53, 5.03], [16.68, 4.68], [16.75, 4.65], [16.82, 4.68], [16.85, 4.75], [16.75, 5.0], [16.97, 5.53], [17.5, 5.75], [17.75, 5.65], [18.0, 5.75], [18.53, 5.53], [18.68, 5.18], [19.03, 5.03], [19.25, 4.5], [19.15, 4.25], [19.25, 4.0], [19.15, 3.75], [19.25, 3.5], [19.03, 2.97], [18.5, 2.75], [18.25, 2.85], [18.0, 2.75], [17.7, 2.88], [17.53, 2.47], [17.0, 2.25], [16.47, 2.47], [16.32, 2.82], [16.25, 2.85], [16.0, 2.75], [15.5, 2.96], [15.0, 2.75], [14.47, 2.97], [14.25, 3.5], [14.35, 3.75], [14.32, 3.82], [13.97, 3.97], [13.75, 4.5]]]]}, "2010-11-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.75, 4.5], [13.97, 5.03], [14.5, 5.25], [15.03, 5.03], [15.18, 4.68], [15.25, 4.65], [15.32, 4.68], [15.47, 5.03], [16.0, 5.25], [16.53, 5.03], [16.68, 4.68], [16.75, 4.65], [16.82, 4.68], [16.85, 4.75], [16.75, 5.0], [16.97, 5.53], [17.5, 5.75], [17.75, 5.65], [18.0, 5.75], [18.53, 5.53], [18.68, 5.18], [19.03, 5.03], [19.25, 4.5], [19.15, 4.25], [19.25, 4.0], [19.15, 3.75], [19.25, 3.5], [19.03, 2.97], [18.5, 2.75], [18.25, 2.85], [18.0, 2.75], [17.7, 2.88], [17.53, 2.47], [17.0, 2.25], [16.47, 2.47], [16.32, 2.82], [16.25, 2.85], [16.0, 2.75], [15.5, 2.96], [15.0, 2.75], [14.47, 2.97], [14.25, 3.5], [14.35, 3.75], [14.32, 3.82], [13.97, 3.97], [13.75, 4.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": -2.0938513258989246}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": -1.5804615657220233}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.006954742044286, 22.92391135658511, 22.843550737489124]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.150951456933797, 22.26296871911518, 22.04440327284715]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [-1.4821932995915181, -1.579963549758488, -1.679227847816064]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [-1.819014839696763, -1.9491433534692533, -2.0938513258989246]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [-1.586363569349951, -1.697064084213264, -1.8804698993858728]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [-2.217506464378017, -2.0847365955542583, -2.2940827846801346]}}