{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:48:02.582464", "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": "2011-Jul-18_to_2011-Jul-24_14.5_9.5"}, "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": 2011070002681}, "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": "July 18 2011"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 24 2011"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 7}, "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": "Heat wave"}, "area": {"name": "Area", "description": "The area (in square meters) encompassing all grid points under the influence of an event during its lifetime.", "value": 100561.88593545636}, "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", "Chad", "Nigeria"]}, "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": 9.5}, "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": 14.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "14.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 12.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 16.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 7.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 11.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2011-07-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, 9.53], [12.82, 9.68], [12.85, 9.75], [12.75, 10.0], [12.97, 10.53], [13.5, 10.75], [13.75, 10.65], [13.82, 10.68], [13.85, 10.75], [13.82, 10.82], [13.47, 10.97], [13.25, 11.5], [13.47, 12.03], [14.0, 12.25], [14.25, 12.15], [14.5, 12.25], [15.03, 12.03], [15.18, 11.68], [15.53, 11.53], [15.68, 11.18], [16.0, 11.04], [16.5, 11.25], [17.03, 11.03], [17.25, 10.5], [17.15, 10.25], [17.25, 10.0], [17.03, 9.47], [16.5, 9.25], [16.25, 9.35], [16.18, 9.32], [16.15, 9.25], [16.25, 9.0], [16.03, 8.47], [15.68, 8.32], [15.53, 7.97], [15.18, 7.82], [15.03, 7.47], [14.5, 7.25], [14.25, 7.35], [14.0, 7.25], [13.47, 7.47], [13.32, 7.82], [13.25, 7.85], [13.0, 7.75], [12.47, 7.97], [12.25, 8.5], [12.35, 8.75], [12.25, 9.0], [12.47, 9.53]]]]}, "2011-07-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, 9.53], [12.82, 9.68], [12.85, 9.75], [12.75, 10.0], [12.97, 10.53], [13.5, 10.75], [13.75, 10.65], [13.82, 10.68], [13.85, 10.75], [13.82, 10.82], [13.47, 10.97], [13.25, 11.5], [13.47, 12.03], [14.0, 12.25], [14.25, 12.15], [14.5, 12.25], [15.03, 12.03], [15.18, 11.68], [15.53, 11.53], [15.68, 11.18], [16.0, 11.04], [16.5, 11.25], [17.03, 11.03], [17.25, 10.5], [17.15, 10.25], [17.25, 10.0], [17.03, 9.47], [16.5, 9.25], [16.25, 9.35], [16.18, 9.32], [16.15, 9.25], [16.25, 9.0], [16.03, 8.47], [15.68, 8.32], [15.53, 7.97], [15.18, 7.82], [15.03, 7.47], [14.5, 7.25], [14.25, 7.35], [14.0, 7.25], [13.47, 7.47], [13.32, 7.82], [13.25, 7.85], [13.0, 7.75], [12.47, 7.97], [12.25, 8.5], [12.35, 8.75], [12.25, 9.0], [12.47, 9.53]]]]}, "2011-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.47, 9.53], [12.82, 9.68], [12.85, 9.75], [12.75, 10.0], [12.97, 10.53], [13.5, 10.75], [13.75, 10.65], [13.82, 10.68], [13.85, 10.75], [13.82, 10.82], [13.47, 10.97], [13.25, 11.5], [13.47, 12.03], [14.0, 12.25], [14.25, 12.15], [14.5, 12.25], [15.03, 12.03], [15.18, 11.68], [15.53, 11.53], [15.68, 11.18], [16.0, 11.04], [16.5, 11.25], [17.03, 11.03], [17.25, 10.5], [17.15, 10.25], [17.25, 10.0], [17.03, 9.47], [16.5, 9.25], [16.25, 9.35], [16.18, 9.32], [16.15, 9.25], [16.25, 9.0], [16.03, 8.47], [15.68, 8.32], [15.53, 7.97], [15.18, 7.82], [15.03, 7.47], [14.5, 7.25], [14.25, 7.35], [14.0, 7.25], [13.47, 7.47], [13.32, 7.82], [13.25, 7.85], [13.0, 7.75], [12.47, 7.97], [12.25, 8.5], [12.35, 8.75], [12.25, 9.0], [12.47, 9.53]]]]}, "2011-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.0, 10.75], [14.53, 10.53], [14.75, 10.0], [14.65, 9.75], [14.75, 9.5], [14.53, 8.97], [14.0, 8.75], [13.75, 8.85], [13.5, 8.75], [12.97, 8.97], [12.75, 9.5], [12.97, 10.03], [13.32, 10.18], [13.47, 10.53], [14.0, 10.75]]]]}, "2011-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.5, 10.25], [15.03, 10.03], [15.25, 9.5], [15.03, 8.97], [14.5, 8.75], [13.97, 8.97], [13.75, 9.5], [13.97, 10.03], [14.5, 10.25]]]]}, "2011-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.5, 10.25], [15.03, 10.03], [15.25, 9.5], [15.03, 8.97], [14.5, 8.75], [13.97, 8.97], [13.75, 9.5], [13.97, 10.03], [14.5, 10.25]]]]}, "2011-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[14.5, 10.25], [15.03, 10.03], [15.25, 9.5], [15.03, 8.97], [14.5, 8.75], [13.97, 8.97], [13.75, 9.5], [13.97, 10.03], [14.5, 10.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 3.586428904501304}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 2.0026449618832793}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [27.990649862279213, 28.348442796922825, 27.76649849164187, 28.05494881342645, 27.45749506986641, 27.37062222175149, 28.273047313967993]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.834166533029702, 30.398054576986738, 29.2775833488148, 28.358977599535308, 27.45749506986641, 27.37062222175149, 28.273047313967993]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.9496604040387628, 2.348109689081265, 1.7622841032311918, 1.6461472159803634, 1.5118798202807398, 1.4596379926153418, 2.385973057316903]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.779893648103098, 3.586428904501304, 2.4198005103849027, 1.7076880369501168, 1.5118798202807398, 1.4596379926153418, 2.385973057316903]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.8281604189089897, 2.266150910410605, 1.7175146631217784, 1.518935872743688, 1.3780009614712672, 1.3065143293732657, 2.1296005129523974]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.561846016949044, 3.30014147625948, 2.231894820626629, 1.664459602660773, 1.3780009614712672, 1.3065143293732657, 2.1296005129523974]}}