{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:30:29.517048", "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": "2022-Mar-23_to_2022-Mar-25_271.0_58.0"}, "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": 2022030002279}, "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": "March 23 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 25 2022"}, "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": 51639.50459581312}, "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": ["N.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": ["Hudson Bay"]}, "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": 58.0}, "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": 271.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 269.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 273.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 55.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 59.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-03-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.65, 58.25], [-90.75, 58.5], [-90.65, 58.75], [-90.75, 59.0], [-90.65, 59.25], [-90.75, 59.5], [-90.53, 60.03], [-90.0, 60.25], [-89.47, 60.03], [-89.25, 59.5], [-89.35, 59.25], [-89.32, 59.18], [-88.97, 59.03], [-88.82, 58.68], [-88.75, 58.65], [-88.5, 58.75], [-88.25, 58.65], [-88.0, 58.75], [-87.75, 58.65], [-87.5, 58.75], [-86.97, 58.53], [-86.82, 58.18], [-86.47, 58.03], [-86.32, 57.68], [-85.97, 57.53], [-85.75, 57.0], [-85.96, 56.5], [-85.75, 56.0], [-85.97, 55.47], [-86.5, 55.25], [-86.75, 55.35], [-87.0, 55.25], [-87.25, 55.35], [-87.5, 55.25], [-88.03, 55.47], [-88.18, 55.82], [-88.25, 55.85], [-88.5, 55.75], [-89.03, 55.97], [-89.18, 56.32], [-89.25, 56.35], [-89.5, 56.25], [-90.03, 56.47], [-90.18, 56.82], [-90.53, 56.97], [-90.75, 57.5], [-90.65, 57.75], [-90.75, 58.0], [-90.65, 58.25]]]]}, "2022-03-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.65, 58.25], [-90.75, 58.5], [-90.65, 58.75], [-90.75, 59.0], [-90.65, 59.25], [-90.75, 59.5], [-90.53, 60.03], [-90.0, 60.25], [-89.47, 60.03], [-89.25, 59.5], [-89.35, 59.25], [-89.32, 59.18], [-88.97, 59.03], [-88.82, 58.68], [-88.75, 58.65], [-88.5, 58.75], [-88.25, 58.65], [-88.0, 58.75], [-87.75, 58.65], [-87.5, 58.75], [-86.97, 58.53], [-86.82, 58.18], [-86.47, 58.03], [-86.32, 57.68], [-85.97, 57.53], [-85.75, 57.0], [-85.96, 56.5], [-85.75, 56.0], [-85.97, 55.47], [-86.5, 55.25], [-86.75, 55.35], [-87.0, 55.25], [-87.25, 55.35], [-87.5, 55.25], [-88.03, 55.47], [-88.18, 55.82], [-88.25, 55.85], [-88.5, 55.75], [-89.03, 55.97], [-89.18, 56.32], [-89.25, 56.35], [-89.5, 56.25], [-90.03, 56.47], [-90.18, 56.82], [-90.53, 56.97], [-90.75, 57.5], [-90.65, 57.75], [-90.75, 58.0], [-90.65, 58.25]]]]}, "2022-03-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.65, 58.25], [-90.75, 58.5], [-90.65, 58.75], [-90.75, 59.0], [-90.65, 59.25], [-90.75, 59.5], [-90.53, 60.03], [-90.0, 60.25], [-89.47, 60.03], [-89.25, 59.5], [-89.35, 59.25], [-89.32, 59.18], [-88.97, 59.03], [-88.82, 58.68], [-88.75, 58.65], [-88.5, 58.75], [-88.25, 58.65], [-88.0, 58.75], [-87.75, 58.65], [-87.5, 58.75], [-86.97, 58.53], [-86.82, 58.18], [-86.47, 58.03], [-86.32, 57.68], [-85.97, 57.53], [-85.75, 57.0], [-85.96, 56.5], [-85.75, 56.0], [-85.97, 55.47], [-86.5, 55.25], [-86.75, 55.35], [-87.0, 55.25], [-87.25, 55.35], [-87.5, 55.25], [-88.03, 55.47], [-88.18, 55.82], [-88.25, 55.85], [-88.5, 55.75], [-89.03, 55.97], [-89.18, 56.32], [-89.25, 56.35], [-89.5, 56.25], [-90.03, 56.47], [-90.18, 56.82], [-90.53, 56.97], [-90.75, 57.5], [-90.65, 57.75], [-90.75, 58.0], [-90.65, 58.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.21973859771333}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 9.240157612814983}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-6.185874230402703, -4.191109796334672, -4.943434932427181]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-3.4325998380754186, -1.955337542195366, -3.639566105676977]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.533043747796624, 10.168760164669346, 9.018668925978979]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [11.101970189182623, 12.21973859771333, 9.935790887631242]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5711213610959345, 1.9092028443540425, 1.7112256876773952]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7539289087430074, 2.209070820461635, 2.007602835265625]}}