{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:43:56.340549", "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-Jan-09_to_2010-Jan-13_19.5_68.5"}, "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": 2010010001662}, "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": "January 09 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 13 2010"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 98032.02639631323}, "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": ["Finland", "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": 68.5}, "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": 19.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "19.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 12.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 22.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 65.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 69.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-01-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.97, 68.03], [12.5, 68.25], [12.75, 68.15], [13.0, 68.25], [13.25, 68.15], [13.32, 68.18], [13.47, 68.53], [13.82, 68.68], [13.97, 69.03], [14.5, 69.25], [14.75, 69.15], [14.82, 69.18], [14.97, 69.53], [15.5, 69.75], [15.75, 69.65], [16.0, 69.75], [16.53, 69.53], [16.75, 69.0], [16.65, 68.75], [16.75, 68.5], [16.57, 68.07], [17.0, 68.25], [17.53, 68.03], [17.75, 67.5], [17.53, 66.97], [17.0, 66.75], [16.47, 66.97], [16.25, 67.5], [16.43, 67.93], [16.18, 67.82], [16.03, 67.47], [15.5, 67.25], [15.25, 67.35], [15.18, 67.32], [15.03, 66.97], [14.68, 66.82], [14.53, 66.47], [14.0, 66.25], [13.47, 66.47], [13.32, 66.82], [13.25, 66.85], [13.18, 66.82], [13.03, 66.47], [12.5, 66.25], [11.97, 66.47], [11.75, 67.0], [11.85, 67.25], [11.75, 67.5], [11.97, 68.03]]]]}, "2010-01-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.97, 68.03], [12.5, 68.25], [12.75, 68.15], [13.0, 68.25], [13.25, 68.15], [13.32, 68.18], [13.35, 68.25], [13.25, 68.5], [13.47, 69.03], [14.0, 69.25], [14.25, 69.15], [14.32, 69.18], [14.47, 69.53], [15.0, 69.75], [15.25, 69.65], [15.5, 69.75], [15.75, 69.65], [16.0, 69.75], [16.25, 69.65], [16.5, 69.75], [17.0, 69.54], [17.5, 69.75], [17.75, 69.65], [18.0, 69.75], [18.25, 69.65], [18.5, 69.75], [18.75, 69.65], [19.0, 69.75], [19.25, 69.65], [19.5, 69.75], [19.75, 69.65], [20.0, 69.75], [20.25, 69.65], [20.5, 69.75], [20.75, 69.65], [21.0, 69.75], [21.53, 69.53], [21.68, 69.18], [22.03, 69.03], [22.18, 68.68], [22.53, 68.53], [22.75, 68.0], [22.53, 67.47], [22.18, 67.32], [22.03, 66.97], [21.5, 66.75], [21.25, 66.85], [21.0, 66.75], [20.75, 66.85], [20.5, 66.75], [20.25, 66.85], [20.0, 66.75], [19.75, 66.85], [19.63, 66.8], [19.75, 66.5], [19.53, 65.97], [19.0, 65.75], [18.75, 65.85], [18.5, 65.75], [18.25, 65.85], [18.0, 65.75], [17.75, 65.85], [17.68, 65.82], [17.53, 65.47], [17.0, 65.25], [16.75, 65.35], [16.5, 65.25], [15.97, 65.47], [15.82, 65.82], [15.75, 65.85], [15.5, 65.75], [14.97, 65.97], [14.82, 66.32], [14.5, 66.46], [14.0, 66.25], [13.47, 66.47], [13.32, 66.82], [13.25, 66.85], [13.18, 66.82], [13.03, 66.47], [12.5, 66.25], [11.97, 66.47], [11.75, 67.0], [11.85, 67.25], [11.75, 67.5], [11.97, 68.03]]]]}, "2010-01-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[11.97, 68.03], [12.5, 68.25], [12.75, 68.15], [13.0, 68.25], [13.25, 68.15], [13.32, 68.18], [13.35, 68.25], [13.25, 68.5], [13.47, 69.03], [14.0, 69.25], [14.25, 69.15], [14.32, 69.18], [14.47, 69.53], [15.0, 69.75], [15.25, 69.65], [15.5, 69.75], [15.75, 69.65], [16.0, 69.75], [16.25, 69.65], [16.5, 69.75], [17.0, 69.54], [17.5, 69.75], [17.75, 69.65], [18.0, 69.75], [18.25, 69.65], [18.5, 69.75], [18.75, 69.65], [19.0, 69.75], [19.25, 69.65], [19.5, 69.75], [19.75, 69.65], [20.0, 69.75], [20.25, 69.65], [20.5, 69.75], [20.75, 69.65], [21.0, 69.75], [21.53, 69.53], [21.68, 69.18], [22.03, 69.03], [22.18, 68.68], [22.53, 68.53], [22.75, 68.0], [22.53, 67.47], [22.18, 67.32], [22.03, 66.97], [21.5, 66.75], [21.25, 66.85], [21.0, 66.75], [20.75, 66.85], [20.5, 66.75], [20.25, 66.85], [20.0, 66.75], [19.75, 66.85], [19.63, 66.8], [19.75, 66.5], [19.53, 65.97], [19.0, 65.75], [18.75, 65.85], [18.5, 65.75], [18.25, 65.85], [18.0, 65.75], [17.75, 65.85], [17.68, 65.82], [17.53, 65.47], [17.0, 65.25], [16.75, 65.35], [16.5, 65.25], [15.97, 65.47], [15.82, 65.82], [15.75, 65.85], [15.5, 65.75], [14.97, 65.97], [14.82, 66.32], [14.5, 66.46], [14.0, 66.25], [13.47, 66.47], [13.32, 66.82], [13.25, 66.85], [13.18, 66.82], [13.03, 66.47], [12.5, 66.25], [11.97, 66.47], [11.75, 67.0], [11.85, 67.25], [11.75, 67.5], [11.97, 68.03]]]]}, "2010-01-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[13.35, 68.25], [13.25, 68.5], [13.47, 69.03], [14.0, 69.25], [14.25, 69.15], [14.32, 69.18], [14.47, 69.53], [15.0, 69.75], [15.25, 69.65], [15.5, 69.75], [15.75, 69.65], [16.0, 69.75], [16.25, 69.65], [16.5, 69.75], [17.0, 69.54], [17.5, 69.75], [17.75, 69.65], [18.0, 69.75], [18.25, 69.65], [18.5, 69.75], [18.75, 69.65], [19.0, 69.75], [19.25, 69.65], [19.5, 69.75], [19.75, 69.65], [20.0, 69.75], [20.25, 69.65], [20.5, 69.75], [20.75, 69.65], [21.0, 69.75], [21.53, 69.53], [21.68, 69.18], [22.03, 69.03], [22.18, 68.68], [22.53, 68.53], [22.75, 68.0], [22.53, 67.47], [22.18, 67.32], [22.03, 66.97], [21.5, 66.75], [21.25, 66.85], [21.0, 66.75], [20.75, 66.85], [20.5, 66.75], [20.25, 66.85], [20.0, 66.75], [19.75, 66.85], [19.63, 66.8], [19.75, 66.5], [19.53, 65.97], [19.0, 65.75], [18.75, 65.85], [18.5, 65.75], [18.25, 65.85], [18.0, 65.75], [17.75, 65.85], [17.68, 65.82], [17.53, 65.47], [17.0, 65.25], [16.75, 65.35], [16.5, 65.25], [15.97, 65.47], [15.82, 65.82], [15.75, 65.85], [15.5, 65.75], [14.97, 65.97], [14.82, 66.32], [14.47, 66.47], [14.32, 66.82], [14.25, 66.85], [14.0, 66.75], [13.47, 66.97], [13.25, 67.5], [13.35, 67.75], [13.25, 68.0], [13.35, 68.25]]]]}, "2010-01-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[17.75, 69.0], [17.97, 69.53], [18.5, 69.75], [18.75, 69.65], [19.0, 69.75], [19.25, 69.65], [19.5, 69.75], [19.75, 69.65], [20.0, 69.75], [20.25, 69.65], [20.5, 69.75], [20.75, 69.65], [21.0, 69.75], [21.53, 69.53], [21.68, 69.18], [22.03, 69.03], [22.25, 68.5], [22.03, 67.97], [21.5, 67.75], [21.25, 67.85], [21.0, 67.75], [20.75, 67.85], [20.5, 67.75], [20.25, 67.85], [20.0, 67.75], [19.75, 67.85], [19.5, 67.75], [19.25, 67.85], [19.0, 67.75], [18.47, 67.97], [18.32, 68.32], [17.97, 68.47], [17.75, 69.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.773825940220092}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.648616351220873}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [4.535926174323777, 2.617002407562609, 1.7762294036419348, 0.5951532868485288, -1.8227056059878919]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [6.176201247231745, 6.780322277662947, 6.4409581883130045, 5.148469111070767, 0.6705467142510884]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.036314059482633, 9.549714974524798, 8.818246846411755, 8.323595386002758, 8.410662122738941]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.0199128905017, 12.773825940220092, 12.58590755187032, 11.377465516779353, 8.866505641621018]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2783638322985469, 1.7231627973173143, 1.556809989272948, 1.4152950228322476, 1.3235348979481039]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4741529902643145, 2.1168058505220473, 1.964170164330781, 1.7931036402845957, 1.3876877827200202]}}