{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:02:00.469686", "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": "2024-Nov-06_to_2024-Nov-08_234.0_54.0"}, "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": 2024110001274}, "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": "November 06 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 08 2024"}, "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": 98330.90667497365}, "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"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["America", "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": 54.0}, "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": 234.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "234.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 229.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 236.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 53.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 58.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-131.18, 56.68], [-131.03, 57.03], [-130.5, 57.25], [-130.25, 57.15], [-130.0, 57.25], [-129.75, 57.15], [-129.5, 57.25], [-128.97, 57.03], [-128.82, 56.68], [-128.75, 56.65], [-128.62, 56.7], [-128.75, 57.0], [-128.65, 57.25], [-128.75, 57.5], [-128.54, 58.0], [-128.75, 58.5], [-128.53, 59.03], [-128.0, 59.25], [-127.47, 59.03], [-127.32, 58.68], [-127.25, 58.65], [-127.0, 58.75], [-126.47, 58.53], [-126.25, 58.0], [-126.35, 57.75], [-126.25, 57.5], [-126.35, 57.25], [-126.25, 57.0], [-126.35, 56.75], [-126.25, 56.5], [-126.47, 55.97], [-126.82, 55.82], [-126.85, 55.75], [-126.75, 55.5], [-126.85, 55.25], [-126.82, 55.18], [-126.75, 55.15], [-126.68, 55.18], [-126.53, 55.53], [-126.0, 55.75], [-125.5, 55.54], [-125.0, 55.75], [-124.75, 55.65], [-124.68, 55.68], [-124.53, 56.03], [-124.0, 56.25], [-123.47, 56.03], [-123.25, 55.5], [-123.47, 54.97], [-123.82, 54.82], [-123.85, 54.75], [-123.75, 54.5], [-123.85, 54.25], [-123.75, 54.0], [-123.97, 53.47], [-124.32, 53.32], [-124.47, 52.97], [-125.0, 52.75], [-125.25, 52.85], [-125.32, 52.82], [-125.47, 52.47], [-126.0, 52.25], [-126.53, 52.47], [-126.68, 52.82], [-126.75, 52.85], [-127.0, 52.75], [-127.53, 52.97], [-127.68, 53.32], [-128.03, 53.47], [-128.25, 54.0], [-128.15, 54.25], [-128.18, 54.32], [-128.25, 54.35], [-128.5, 54.25], [-129.03, 54.47], [-129.18, 54.82], [-129.25, 54.85], [-129.5, 54.75], [-129.75, 54.85], [-130.0, 54.75], [-130.25, 54.85], [-130.5, 54.75], [-130.75, 54.85], [-131.0, 54.75], [-131.53, 54.97], [-131.75, 55.5], [-131.65, 55.75], [-131.75, 56.0], [-131.53, 56.53], [-131.18, 56.68]]]]}}, "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": {"2024-11-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-131.75, 56.0], [-131.53, 56.53], [-131.18, 56.68], [-131.03, 57.03], [-130.5, 57.25], [-130.25, 57.15], [-130.0, 57.25], [-129.75, 57.15], [-129.5, 57.25], [-128.97, 57.03], [-128.82, 56.68], [-128.75, 56.65], [-128.62, 56.7], [-128.75, 57.0], [-128.65, 57.25], [-128.75, 57.5], [-128.54, 58.0], [-128.75, 58.5], [-128.53, 59.03], [-128.0, 59.25], [-127.47, 59.03], [-127.32, 58.68], [-127.25, 58.65], [-127.0, 58.75], [-126.47, 58.53], [-126.25, 58.0], [-126.35, 57.75], [-126.25, 57.5], [-126.35, 57.25], [-126.25, 57.0], [-126.35, 56.75], [-126.25, 56.5], [-126.47, 55.97], [-126.82, 55.82], [-126.85, 55.75], [-126.75, 55.5], [-126.85, 55.25], [-126.82, 55.18], [-126.75, 55.15], [-126.68, 55.18], [-126.53, 55.53], [-126.0, 55.75], [-125.5, 55.54], [-125.0, 55.75], [-124.75, 55.65], [-124.68, 55.68], [-124.53, 56.03], [-124.0, 56.25], [-123.47, 56.03], [-123.25, 55.5], [-123.47, 54.97], [-123.82, 54.82], [-123.85, 54.75], [-123.75, 54.5], [-123.85, 54.25], [-123.75, 54.0], [-123.97, 53.47], [-124.32, 53.32], [-124.47, 52.97], [-125.0, 52.75], [-125.25, 52.85], [-125.32, 52.82], [-125.47, 52.47], [-126.0, 52.25], [-126.53, 52.47], [-126.68, 52.82], [-126.75, 52.85], [-127.0, 52.75], [-127.53, 52.97], [-127.68, 53.32], [-128.03, 53.47], [-128.25, 54.0], [-128.15, 54.25], [-128.18, 54.32], [-128.25, 54.35], [-128.5, 54.25], [-129.03, 54.47], [-129.18, 54.82], [-129.25, 54.85], [-129.5, 54.75], [-129.75, 54.85], [-130.0, 54.75], [-130.25, 54.85], [-130.5, 54.75], [-130.75, 54.85], [-131.0, 54.75], [-131.53, 54.97], [-131.75, 55.5], [-131.65, 55.75], [-131.75, 56.0]]]]}, "2024-11-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-131.75, 56.0], [-131.53, 56.53], [-131.18, 56.68], [-131.03, 57.03], [-130.5, 57.25], [-130.25, 57.15], [-130.0, 57.25], [-129.75, 57.15], [-129.5, 57.25], [-128.97, 57.03], [-128.82, 56.68], [-128.75, 56.65], [-128.62, 56.7], [-128.75, 57.0], [-128.65, 57.25], [-128.75, 57.5], [-128.54, 58.0], [-128.75, 58.5], [-128.53, 59.03], [-128.0, 59.25], [-127.47, 59.03], [-127.32, 58.68], [-127.25, 58.65], [-127.0, 58.75], [-126.47, 58.53], [-126.25, 58.0], [-126.35, 57.75], [-126.25, 57.5], [-126.35, 57.25], [-126.25, 57.0], [-126.35, 56.75], [-126.25, 56.5], [-126.47, 55.97], [-126.82, 55.82], [-126.85, 55.75], [-126.75, 55.5], [-126.85, 55.25], [-126.82, 55.18], [-126.75, 55.15], [-126.68, 55.18], [-126.53, 55.53], [-126.0, 55.75], [-125.5, 55.54], [-125.0, 55.75], [-124.75, 55.65], [-124.68, 55.68], [-124.53, 56.03], [-124.0, 56.25], [-123.47, 56.03], [-123.25, 55.5], [-123.47, 54.97], [-123.82, 54.82], [-123.85, 54.75], [-123.75, 54.5], [-123.85, 54.25], [-123.75, 54.0], [-123.97, 53.47], [-124.32, 53.32], [-124.47, 52.97], [-125.0, 52.75], [-125.25, 52.85], [-125.32, 52.82], [-125.47, 52.47], [-126.0, 52.25], [-126.53, 52.47], [-126.68, 52.82], [-126.75, 52.85], [-127.0, 52.75], [-127.53, 52.97], [-127.68, 53.32], [-128.03, 53.47], [-128.25, 54.0], [-128.15, 54.25], [-128.18, 54.32], [-128.25, 54.35], [-128.5, 54.25], [-129.03, 54.47], [-129.18, 54.82], [-129.25, 54.85], [-129.5, 54.75], [-129.75, 54.85], [-130.0, 54.75], [-130.25, 54.85], [-130.5, 54.75], [-130.75, 54.85], [-131.0, 54.75], [-131.53, 54.97], [-131.75, 55.5], [-131.65, 55.75], [-131.75, 56.0]]]]}, "2024-11-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-131.75, 56.0], [-131.53, 56.53], [-131.18, 56.68], [-131.03, 57.03], [-130.5, 57.25], [-130.25, 57.15], [-130.0, 57.25], [-129.75, 57.15], [-129.5, 57.25], [-128.97, 57.03], [-128.82, 56.68], [-128.75, 56.65], [-128.62, 56.7], [-128.75, 57.0], [-128.65, 57.25], [-128.75, 57.5], [-128.54, 58.0], [-128.75, 58.5], [-128.53, 59.03], [-128.0, 59.25], [-127.47, 59.03], [-127.32, 58.68], [-127.25, 58.65], [-127.0, 58.75], [-126.47, 58.53], [-126.25, 58.0], [-126.35, 57.75], [-126.25, 57.5], [-126.35, 57.25], [-126.25, 57.0], [-126.35, 56.75], [-126.25, 56.5], [-126.47, 55.97], [-126.82, 55.82], [-126.85, 55.75], [-126.75, 55.5], [-126.85, 55.25], [-126.82, 55.18], [-126.75, 55.15], [-126.68, 55.18], [-126.53, 55.53], [-126.0, 55.75], [-125.5, 55.54], [-125.0, 55.75], [-124.75, 55.65], [-124.68, 55.68], [-124.53, 56.03], [-124.0, 56.25], [-123.47, 56.03], [-123.25, 55.5], [-123.47, 54.97], [-123.82, 54.82], [-123.85, 54.75], [-123.75, 54.5], [-123.85, 54.25], [-123.75, 54.0], [-123.97, 53.47], [-124.32, 53.32], [-124.47, 52.97], [-125.0, 52.75], [-125.25, 52.85], [-125.32, 52.82], [-125.47, 52.47], [-126.0, 52.25], [-126.53, 52.47], [-126.68, 52.82], [-126.75, 52.85], [-127.0, 52.75], [-127.53, 52.97], [-127.68, 53.32], [-128.03, 53.47], [-128.25, 54.0], [-128.15, 54.25], [-128.18, 54.32], [-128.25, 54.35], [-128.5, 54.25], [-129.03, 54.47], [-129.18, 54.82], [-129.25, 54.85], [-129.5, 54.75], [-129.75, 54.85], [-130.0, 54.75], [-130.25, 54.85], [-130.5, 54.75], [-130.75, 54.85], [-131.0, 54.75], [-131.53, 54.97], [-131.75, 55.5], [-131.65, 55.75], [-131.75, 56.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.501230786453675}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.846858418655821}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [1.514592379615408, 3.7875248863583693, 2.4247248331705578]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [7.244362131754599, 8.692212677001976, 8.124045308430993]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.456119177616361, 7.106442026395818, 5.978014051955287]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.875274800973841, 10.501230786453675, 9.47943014028607]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2267467483986665, 2.0074247659985462, 1.6802821721411612]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8866152142119084, 2.5865658774478852, 2.474751684215869]}}