{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:53:27.589091", "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-May-19_to_2013-May-23_278.5_41.0"}, "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": 2013050002375}, "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": "May 19 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 23 2013"}, "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": 196603.59932139388}, "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": ["Canada", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North America"]}, "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": 41.0}, "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": 278.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "278.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 275.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 283.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 43.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-05-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-81.5, 41.75], [-80.97, 41.53], [-80.75, 41.0], [-80.97, 40.47], [-81.32, 40.32], [-81.47, 39.97], [-82.0, 39.75], [-82.53, 39.97], [-82.75, 40.5], [-82.53, 41.03], [-82.18, 41.18], [-82.03, 41.53], [-81.5, 41.75]]]]}, "2013-05-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.03, 42.03], [-84.68, 42.18], [-84.53, 42.53], [-84.18, 42.68], [-84.03, 43.03], [-83.5, 43.25], [-83.25, 43.15], [-83.18, 43.18], [-83.03, 43.53], [-82.5, 43.75], [-82.25, 43.65], [-82.18, 43.68], [-82.03, 44.03], [-81.5, 44.25], [-80.97, 44.03], [-80.82, 43.68], [-80.75, 43.65], [-80.68, 43.68], [-80.53, 44.03], [-80.0, 44.25], [-79.47, 44.03], [-79.32, 43.68], [-79.25, 43.65], [-79.0, 43.75], [-78.75, 43.65], [-78.5, 43.75], [-78.25, 43.65], [-78.0, 43.75], [-77.75, 43.65], [-77.5, 43.75], [-77.25, 43.65], [-77.0, 43.75], [-76.47, 43.53], [-76.25, 43.0], [-76.47, 42.47], [-76.82, 42.32], [-76.97, 41.97], [-77.5, 41.75], [-77.75, 41.85], [-77.82, 41.82], [-77.85, 41.75], [-77.75, 41.5], [-77.85, 41.25], [-77.75, 41.0], [-77.97, 40.47], [-78.32, 40.32], [-78.47, 39.97], [-78.82, 39.82], [-78.97, 39.47], [-79.32, 39.32], [-79.47, 38.97], [-80.0, 38.75], [-80.25, 38.85], [-80.5, 38.75], [-80.75, 38.85], [-81.0, 38.75], [-81.25, 38.85], [-81.5, 38.75], [-82.03, 38.97], [-82.18, 39.32], [-82.25, 39.35], [-82.5, 39.25], [-82.75, 39.35], [-83.0, 39.25], [-83.53, 39.47], [-83.68, 39.82], [-84.03, 39.97], [-84.18, 40.32], [-84.25, 40.35], [-84.5, 40.25], [-85.03, 40.47], [-85.25, 41.0], [-85.15, 41.25], [-85.25, 41.5], [-85.03, 42.03]]]]}, "2013-05-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.03, 42.03], [-84.68, 42.18], [-84.53, 42.53], [-84.18, 42.68], [-84.03, 43.03], [-83.5, 43.25], [-83.25, 43.15], [-83.18, 43.18], [-83.03, 43.53], [-82.5, 43.75], [-82.25, 43.65], [-82.18, 43.68], [-82.03, 44.03], [-81.5, 44.25], [-80.97, 44.03], [-80.82, 43.68], [-80.75, 43.65], [-80.68, 43.68], [-80.53, 44.03], [-80.0, 44.25], [-79.47, 44.03], [-79.32, 43.68], [-79.25, 43.65], [-79.0, 43.75], [-78.75, 43.65], [-78.5, 43.75], [-78.25, 43.65], [-78.0, 43.75], [-77.75, 43.65], [-77.5, 43.75], [-77.25, 43.65], [-77.18, 43.68], [-77.03, 44.03], [-76.5, 44.25], [-75.97, 44.03], [-75.75, 43.5], [-75.97, 42.97], [-76.32, 42.82], [-76.47, 42.47], [-76.82, 42.32], [-76.97, 41.97], [-77.5, 41.75], [-77.75, 41.85], [-77.82, 41.82], [-77.85, 41.75], [-77.75, 41.5], [-77.85, 41.25], [-77.75, 41.0], [-77.97, 40.47], [-78.32, 40.32], [-78.47, 39.97], [-78.82, 39.82], [-78.97, 39.47], [-79.32, 39.32], [-79.47, 38.97], [-80.0, 38.75], [-80.25, 38.85], [-80.5, 38.75], [-80.75, 38.85], [-81.0, 38.75], [-81.25, 38.85], [-81.5, 38.75], [-82.03, 38.97], [-82.18, 39.32], [-82.25, 39.35], [-82.5, 39.25], [-82.75, 39.35], [-83.0, 39.25], [-83.53, 39.47], [-83.68, 39.82], [-84.03, 39.97], [-84.18, 40.32], [-84.25, 40.35], [-84.5, 40.25], [-85.03, 40.47], [-85.25, 41.0], [-85.15, 41.25], [-85.25, 41.5], [-85.03, 42.03]]]]}, "2013-05-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.03, 42.03], [-84.68, 42.18], [-84.53, 42.53], [-84.18, 42.68], [-84.03, 43.03], [-83.5, 43.25], [-83.25, 43.15], [-83.18, 43.18], [-83.03, 43.53], [-82.5, 43.75], [-82.25, 43.65], [-82.18, 43.68], [-82.03, 44.03], [-81.5, 44.25], [-80.97, 44.03], [-80.82, 43.68], [-80.75, 43.65], [-80.68, 43.68], [-80.53, 44.03], [-80.0, 44.25], [-79.47, 44.03], [-79.32, 43.68], [-79.25, 43.65], [-79.0, 43.75], [-78.75, 43.65], [-78.5, 43.75], [-78.25, 43.65], [-78.0, 43.75], [-77.75, 43.65], [-77.5, 43.75], [-77.25, 43.65], [-77.18, 43.68], [-77.03, 44.03], [-76.5, 44.25], [-75.97, 44.03], [-75.75, 43.5], [-75.97, 42.97], [-76.32, 42.82], [-76.47, 42.47], [-76.82, 42.32], [-76.97, 41.97], [-77.5, 41.75], [-77.75, 41.85], [-77.82, 41.82], [-77.85, 41.75], [-77.75, 41.5], [-77.85, 41.25], [-77.75, 41.0], [-77.97, 40.47], [-78.32, 40.32], [-78.47, 39.97], [-78.82, 39.82], [-78.97, 39.47], [-79.32, 39.32], [-79.47, 38.97], [-80.0, 38.75], [-80.25, 38.85], [-80.5, 38.75], [-80.75, 38.85], [-81.0, 38.75], [-81.25, 38.85], [-81.5, 38.75], [-82.03, 38.97], [-82.18, 39.32], [-82.25, 39.35], [-82.5, 39.25], [-82.75, 39.35], [-83.0, 39.25], [-83.53, 39.47], [-83.68, 39.82], [-84.03, 39.97], [-84.18, 40.32], [-84.25, 40.35], [-84.5, 40.25], [-85.03, 40.47], [-85.25, 41.0], [-85.15, 41.25], [-85.25, 41.5], [-85.03, 42.03]]]]}, "2013-05-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-76.5, 44.25], [-75.97, 44.03], [-75.75, 43.5], [-75.97, 42.97], [-76.5, 42.75], [-77.03, 42.97], [-77.25, 43.5], [-77.03, 44.03], [-76.5, 44.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.68572312573508}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.340454462396283}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.878094115464933, 22.220698094603108, 23.705900704773228, 22.65284199726483, 16.732855743325445]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.991803451179578, 25.32257080845727, 26.377644316891406, 24.627861103407554, 16.732855743325445]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.93257831780565, 7.044724392784225, 8.207926543690277, 6.832287616152984, 4.456587619681613]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.075387901038084, 8.889301782537586, 9.68572312573508, 8.65950052891759, 4.456587619681613]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2912275995538147, 1.6677802218298405, 1.9966370009967322, 1.6841879873334629, 1.6234786261761294]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.3049899779971539, 2.0927992045402295, 2.44040603501114, 2.160882386827695, 1.6234786261761294]}}