{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:10.372505", "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": "2013-Apr-15_to_2013-Apr-18_17.0_68.0"}, "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": 2013040002137}, "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": "April 15 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 18 2013"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 67366.286476193}, "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": ["Norway", "Sweden"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.Europe"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Europe"]}, "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": ["Norwegian Sea"]}, "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": 68.0}, "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": 17.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "17.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 13.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 24.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 65.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 70.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.85, 66.25], [12.75, 66.5], [12.97, 67.03], [13.5, 67.25], [13.75, 67.15], [13.82, 67.18], [13.97, 67.53], [14.5, 67.75], [14.75, 67.65], [14.82, 67.68], [14.97, 68.03], [15.32, 68.18], [15.47, 68.53], [16.0, 68.75], [16.25, 68.65], [16.5, 68.75], [16.75, 68.65], [17.0, 68.75], [17.25, 68.65], [17.5, 68.75], [18.03, 68.53], [18.25, 68.0], [18.15, 67.75], [18.25, 67.5], [18.03, 66.97], [17.5, 66.75], [17.25, 66.85], [17.18, 66.82], [17.03, 66.47], [16.5, 66.25], [16.25, 66.35], [16.18, 66.32], [16.03, 65.97], [15.68, 65.82], [15.65, 65.75], [15.75, 65.5], [15.53, 64.97], [15.0, 64.75], [14.75, 64.85], [14.5, 64.75], [14.25, 64.85], [14.0, 64.75], [13.75, 64.85], [13.5, 64.75], [12.97, 64.97], [12.75, 65.5], [12.85, 65.75], [12.75, 66.0], [12.85, 66.25]]]]}, "2013-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.85, 66.25], [12.75, 66.5], [12.97, 67.03], [13.5, 67.25], [13.75, 67.15], [13.82, 67.18], [13.97, 67.53], [14.5, 67.75], [14.75, 67.65], [14.82, 67.68], [14.97, 68.03], [15.32, 68.18], [15.47, 68.53], [16.0, 68.75], [16.25, 68.65], [16.5, 68.75], [16.75, 68.65], [16.82, 68.68], [16.85, 68.75], [16.75, 69.0], [16.97, 69.53], [17.5, 69.75], [17.75, 69.65], [17.82, 69.68], [17.97, 70.03], [18.5, 70.25], [18.75, 70.15], [18.82, 70.18], [18.97, 70.53], [19.5, 70.75], [19.75, 70.65], [20.0, 70.75], [20.25, 70.65], [20.5, 70.75], [20.75, 70.65], [21.0, 70.75], [21.25, 70.65], [21.5, 70.75], [21.75, 70.65], [22.0, 70.75], [22.25, 70.65], [22.32, 70.68], [22.47, 71.03], [23.0, 71.25], [23.25, 71.15], [23.5, 71.25], [23.75, 71.15], [24.0, 71.25], [24.25, 71.15], [24.5, 71.25], [25.03, 71.03], [25.25, 70.5], [25.15, 70.25], [25.25, 70.0], [25.03, 69.47], [24.5, 69.25], [24.25, 69.35], [24.0, 69.25], [23.75, 69.35], [23.5, 69.25], [23.25, 69.35], [23.0, 69.25], [22.75, 69.35], [22.68, 69.32], [22.53, 68.97], [22.0, 68.75], [21.75, 68.85], [21.5, 68.75], [21.25, 68.85], [21.0, 68.75], [20.75, 68.85], [20.68, 68.82], [20.53, 68.47], [20.0, 68.25], [19.75, 68.35], [19.5, 68.25], [19.25, 68.35], [19.18, 68.32], [19.03, 67.97], [18.5, 67.75], [18.25, 67.85], [18.18, 67.82], [18.15, 67.75], [18.25, 67.5], [18.03, 66.97], [17.5, 66.75], [17.25, 66.85], [17.18, 66.82], [17.03, 66.47], [16.5, 66.25], [16.25, 66.35], [16.18, 66.32], [16.03, 65.97], [15.68, 65.82], [15.65, 65.75], [15.75, 65.5], [15.53, 64.97], [15.0, 64.75], [14.75, 64.85], [14.5, 64.75], [14.25, 64.85], [14.0, 64.75], [13.75, 64.85], [13.5, 64.75], [12.97, 64.97], [12.75, 65.5], [12.85, 65.75], [12.75, 66.0], [12.85, 66.25]]]]}, "2013-04-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[12.85, 66.25], [12.75, 66.5], [12.97, 67.03], [13.5, 67.25], [13.75, 67.15], [13.82, 67.18], [13.97, 67.53], [14.5, 67.75], [14.75, 67.65], [14.82, 67.68], [14.97, 68.03], [15.32, 68.18], [15.47, 68.53], [16.0, 68.75], [16.25, 68.65], [16.5, 68.75], [16.75, 68.65], [16.82, 68.68], [16.85, 68.75], [16.75, 69.0], [16.97, 69.53], [17.5, 69.75], [17.75, 69.65], [17.82, 69.68], [17.97, 70.03], [18.5, 70.25], [18.75, 70.15], [18.82, 70.18], [18.97, 70.53], [19.5, 70.75], [19.75, 70.65], [20.0, 70.75], [20.25, 70.65], [20.5, 70.75], [20.75, 70.65], [21.0, 70.75], [21.25, 70.65], [21.5, 70.75], [21.75, 70.65], [22.0, 70.75], [22.25, 70.65], [22.32, 70.68], [22.47, 71.03], [23.0, 71.25], [23.25, 71.15], [23.5, 71.25], [23.75, 71.15], [24.0, 71.25], [24.25, 71.15], [24.5, 71.25], [25.03, 71.03], [25.25, 70.5], [25.15, 70.25], [25.25, 70.0], [25.03, 69.47], [24.5, 69.25], [24.25, 69.35], [24.0, 69.25], [23.75, 69.35], [23.5, 69.25], [23.25, 69.35], [23.0, 69.25], [22.75, 69.35], [22.68, 69.32], [22.53, 68.97], [22.0, 68.75], [21.75, 68.85], [21.5, 68.75], [21.25, 68.85], [21.0, 68.75], [20.75, 68.85], [20.68, 68.82], [20.53, 68.47], [20.0, 68.25], [19.75, 68.35], [19.5, 68.25], [19.25, 68.35], [19.18, 68.32], [19.03, 67.97], [18.5, 67.75], [18.25, 67.85], [18.18, 67.82], [18.15, 67.75], [18.25, 67.5], [18.03, 66.97], [17.5, 66.75], [17.25, 66.85], [17.18, 66.82], [17.03, 66.47], [16.5, 66.25], [16.25, 66.35], [16.18, 66.32], [16.03, 65.97], [15.68, 65.82], [15.65, 65.75], [15.75, 65.5], [15.53, 64.97], [15.0, 64.75], [14.75, 64.85], [14.5, 64.75], [14.25, 64.85], [14.0, 64.75], [13.75, 64.85], [13.5, 64.75], [12.97, 64.97], [12.75, 65.5], [12.85, 65.75], [12.75, 66.0], [12.85, 66.25]]]]}, "2013-04-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[16.75, 69.0], [16.97, 69.53], [17.5, 69.75], [17.75, 69.65], [17.82, 69.68], [17.97, 70.03], [18.5, 70.25], [18.75, 70.15], [18.82, 70.18], [18.97, 70.53], [19.5, 70.75], [19.75, 70.65], [20.0, 70.75], [20.25, 70.65], [20.5, 70.75], [20.75, 70.65], [21.0, 70.75], [21.25, 70.65], [21.5, 70.75], [21.75, 70.65], [22.0, 70.75], [22.25, 70.65], [22.32, 70.68], [22.47, 71.03], [23.0, 71.25], [23.25, 71.15], [23.5, 71.25], [23.75, 71.15], [24.0, 71.25], [24.25, 71.15], [24.5, 71.25], [25.03, 71.03], [25.25, 70.5], [25.15, 70.25], [25.25, 70.0], [25.03, 69.47], [24.5, 69.25], [24.25, 69.35], [24.0, 69.25], [23.75, 69.35], [23.5, 69.25], [23.25, 69.35], [23.0, 69.25], [22.75, 69.35], [22.68, 69.32], [22.53, 68.97], [22.0, 68.75], [21.75, 68.85], [21.5, 68.75], [21.25, 68.85], [21.0, 68.75], [20.75, 68.85], [20.68, 68.82], [20.53, 68.47], [20.0, 68.25], [19.75, 68.35], [19.5, 68.25], [19.25, 68.35], [19.18, 68.32], [19.03, 67.97], [18.5, 67.75], [18.25, 67.85], [18.0, 67.75], [17.75, 67.85], [17.68, 67.82], [17.53, 67.47], [17.0, 67.25], [16.47, 67.47], [16.25, 68.0], [16.47, 68.53], [16.82, 68.68], [16.85, 68.75], [16.75, 69.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.841165309016731}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.829278537221463}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [3.6545496232557184, 4.307429801098692, 3.035726874635202, 3.358925872889415]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [5.928934126959859, 7.001333356881332, 4.9104077467337675, 4.480880972136788]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.1450975140446324, 5.60224017508731, 4.191200536936087, 4.329725598085905]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.896184976610243, 6.841165309016731, 4.782267911056692, 5.249375344624582]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6206522393614673, 1.7982665401168016, 1.3460268038392595, 1.4540269252714881]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9682719638705608, 2.313067444025233, 1.580934555900847, 1.6396900907194318]}}