{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:08:22.653644", "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": "2017-Jun-19_to_2017-Jun-21_301.0_48.0"}, "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": 2017060002398}, "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": "June 19 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 21 2017"}, "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": "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": 51163.75704150289}, "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"]}, "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": ["Gulf of St. Lawrence"]}, "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": 48.0}, "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": 301.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "301.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 300.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 306.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 47.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 49.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.68, 49.18], [-58.53, 49.53], [-58.0, 49.75], [-57.75, 49.65], [-57.5, 49.75], [-57.25, 49.65], [-57.0, 49.75], [-56.75, 49.65], [-56.5, 49.75], [-56.0, 49.54], [-55.5, 49.75], [-55.25, 49.65], [-55.0, 49.75], [-54.75, 49.65], [-54.5, 49.75], [-54.25, 49.65], [-54.0, 49.75], [-53.47, 49.53], [-53.32, 49.18], [-52.97, 49.03], [-52.75, 48.5], [-52.97, 47.97], [-53.5, 47.75], [-53.75, 47.85], [-54.0, 47.75], [-54.25, 47.85], [-54.5, 47.75], [-54.75, 47.85], [-55.0, 47.75], [-55.25, 47.85], [-55.5, 47.75], [-55.75, 47.85], [-55.82, 47.82], [-55.97, 47.47], [-56.5, 47.25], [-56.75, 47.35], [-57.0, 47.25], [-57.25, 47.35], [-57.5, 47.25], [-57.75, 47.35], [-58.0, 47.25], [-58.25, 47.35], [-58.5, 47.25], [-58.75, 47.35], [-59.0, 47.25], [-59.53, 47.47], [-59.75, 48.0], [-59.53, 48.53], [-59.18, 48.68], [-59.03, 49.03], [-58.68, 49.18]]]]}, "2017-06-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.68, 49.18], [-58.53, 49.53], [-58.0, 49.75], [-57.75, 49.65], [-57.5, 49.75], [-57.25, 49.65], [-57.0, 49.75], [-56.75, 49.65], [-56.5, 49.75], [-56.0, 49.54], [-55.5, 49.75], [-55.25, 49.65], [-55.0, 49.75], [-54.75, 49.65], [-54.5, 49.75], [-54.25, 49.65], [-54.0, 49.75], [-53.47, 49.53], [-53.32, 49.18], [-52.97, 49.03], [-52.75, 48.5], [-52.97, 47.97], [-53.5, 47.75], [-53.75, 47.85], [-54.0, 47.75], [-54.25, 47.85], [-54.5, 47.75], [-54.75, 47.85], [-55.0, 47.75], [-55.25, 47.85], [-55.5, 47.75], [-55.75, 47.85], [-55.82, 47.82], [-55.97, 47.47], [-56.5, 47.25], [-56.75, 47.35], [-57.0, 47.25], [-57.25, 47.35], [-57.5, 47.25], [-57.75, 47.35], [-58.0, 47.25], [-58.25, 47.35], [-58.5, 47.25], [-58.75, 47.35], [-59.0, 47.25], [-59.53, 47.47], [-59.75, 48.0], [-59.53, 48.53], [-59.18, 48.68], [-59.03, 49.03], [-58.68, 49.18]]]]}, "2017-06-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-58.68, 49.18], [-58.53, 49.53], [-58.0, 49.75], [-57.75, 49.65], [-57.5, 49.75], [-57.25, 49.65], [-57.0, 49.75], [-56.75, 49.65], [-56.5, 49.75], [-56.0, 49.54], [-55.5, 49.75], [-55.25, 49.65], [-55.0, 49.75], [-54.75, 49.65], [-54.5, 49.75], [-54.25, 49.65], [-54.0, 49.75], [-53.47, 49.53], [-53.32, 49.18], [-52.97, 49.03], [-52.75, 48.5], [-52.97, 47.97], [-53.5, 47.75], [-53.75, 47.85], [-54.0, 47.75], [-54.25, 47.85], [-54.5, 47.75], [-54.75, 47.85], [-55.0, 47.75], [-55.25, 47.85], [-55.5, 47.75], [-55.75, 47.85], [-55.82, 47.82], [-55.97, 47.47], [-56.5, 47.25], [-56.75, 47.35], [-57.0, 47.25], [-57.25, 47.35], [-57.5, 47.25], [-57.75, 47.35], [-58.0, 47.25], [-58.25, 47.35], [-58.5, 47.25], [-58.75, 47.35], [-59.0, 47.25], [-59.53, 47.47], [-59.75, 48.0], [-59.53, 48.53], [-59.18, 48.68], [-59.03, 49.03], [-58.68, 49.18]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.904518929946278}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.986789903863669}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [17.39971054470459, 20.623567102244692, 18.233654648645313]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [19.680865800339177, 24.364611038258374, 21.099441600920215]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.869601895346935, 7.83711297009827, 5.253654846145805]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.480686209621183, 10.904518929946278, 7.333916947215016]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5473764763828732, 2.483772607738537, 1.6150832983316696]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.359197297851004, 3.0490335314072374, 2.0193827794169064]}}