{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:52:37.226420", "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": "2023-Apr-05_to_2023-Apr-08_243.5_67.5"}, "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": 2023040001498}, "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 05 2023"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 08 2023"}, "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": 110711.17563064827}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["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": 67.5}, "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": 243.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "243.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 243.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 254.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 66.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 68.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-117.0, 68.25], [-116.75, 68.15], [-116.5, 68.25], [-116.25, 68.15], [-116.18, 68.18], [-116.03, 68.53], [-115.5, 68.75], 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65.35], [-110.0, 65.25], [-110.53, 65.47], [-110.68, 65.82], [-110.75, 65.85], [-111.0, 65.75], [-111.25, 65.85], [-111.5, 65.75], [-111.75, 65.85], [-112.0, 65.75], [-112.25, 65.85], [-112.5, 65.75], [-112.8, 65.88], [-112.97, 65.47], [-113.5, 65.25], [-113.75, 65.35], [-114.0, 65.25], [-114.25, 65.35], [-114.5, 65.25], [-114.75, 65.35], [-115.0, 65.25], [-115.25, 65.35], [-115.5, 65.25], [-115.75, 65.35], [-116.0, 65.25], [-116.53, 65.47], [-116.68, 65.82], [-117.03, 65.97], [-117.25, 66.5], [-117.15, 66.75], [-117.18, 66.82], [-117.53, 66.97], [-117.75, 67.5], [-117.53, 68.03], [-117.0, 68.25]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["N.W.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2023-04-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-117.0, 66.75], [-117.53, 66.97], [-117.75, 67.5], 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evolution of mean t2m.", "value": [-11.834169498114306, -9.944265890297743, -7.3310275277775645, -4.366501214572793]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-11.73226750018631, -7.250939116629922, -3.4873488284655423, -2.263934972009622]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.216915249188247, 8.793554946592636, 10.708755596065599, 13.169099790611863]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.22972147716601, 10.408311353230346, 12.534075269973783, 15.499848217105807]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.434161612173281, 1.58371355282229, 1.8899521426640462, 2.2681769173325903]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4458524721178234, 1.8369863559392279, 2.0908897852085127, 2.791575305035949]}}