{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 17:02:34.705392", "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-Dec-08_to_2024-Dec-10_266.5_26.5"}, "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": 2024120001371}, "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": "December 08 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 10 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": 65858.10143345248}, "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": ["United States"]}, "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": 26.5}, "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": 266.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "266.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 266.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 269.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 28.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-94.75, 27.0], [-94.53, 27.53], [-94.18, 27.68], [-94.15, 27.75], [-94.25, 28.0], [-94.03, 28.53], [-93.68, 28.68], [-93.53, 29.03], [-93.0, 29.25], [-92.75, 29.15], [-92.5, 29.25], [-92.25, 29.15], [-92.0, 29.25], [-91.75, 29.15], [-91.5, 29.25], [-91.25, 29.15], [-91.0, 29.25], [-90.47, 29.03], [-90.25, 28.5], [-90.47, 27.97], [-90.82, 27.82], [-90.97, 27.47], [-91.32, 27.32], [-91.47, 26.97], [-91.82, 26.82], [-91.97, 26.47], [-92.32, 26.32], [-92.47, 25.97], [-92.82, 25.82], [-92.85, 25.75], [-92.75, 25.5], [-92.97, 24.97], [-93.5, 24.75], [-94.03, 24.97], [-94.18, 25.32], [-94.53, 25.47], [-94.75, 26.0], [-94.65, 26.25], [-94.75, 26.5], [-94.65, 26.75], [-94.75, 27.0]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "N.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-12-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.75, 26.5], [-94.64999999999998, 26.75], [-94.75, 27.0], [-94.52999999999997, 27.53], [-94.18, 27.68], [-94.14999999999998, 27.75], [-94.25, 28.0], [-94.02999999999997, 28.53], [-93.68, 28.68], [-93.52999999999997, 29.03], [-93.0, 29.25], [-92.75, 29.15], [-92.5, 29.25], [-92.25, 29.15], [-92.0, 29.25], [-91.75, 29.15], [-91.5, 29.25], [-91.25, 29.15], [-91.0, 29.25], [-90.47000000000003, 29.03], [-90.25, 28.5], [-90.47000000000003, 27.97], [-90.82, 27.82], [-90.97000000000003, 27.47], [-91.32, 27.32], [-91.47000000000003, 26.97], [-91.82, 26.82], [-91.97000000000003, 26.47], [-92.32, 26.32], [-92.47000000000003, 25.97], [-92.82, 25.82], [-92.85000000000002, 25.75], [-92.75, 25.5], [-92.97000000000003, 24.97], [-93.5, 24.75], [-94.02999999999997, 24.97], [-94.18, 25.32], [-94.52999999999997, 25.47], [-94.75, 26.0], [-94.64999999999998, 26.25], [-94.75, 26.5]]]]}, "2024-12-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.75, 26.5], [-94.64999999999998, 26.75], [-94.75, 27.0], [-94.52999999999997, 27.53], [-94.18, 27.68], [-94.14999999999998, 27.75], [-94.25, 28.0], [-94.02999999999997, 28.53], [-93.68, 28.68], [-93.52999999999997, 29.03], [-93.0, 29.25], [-92.75, 29.15], [-92.5, 29.25], [-92.25, 29.15], [-92.0, 29.25], [-91.75, 29.15], [-91.5, 29.25], [-91.25, 29.15], [-91.0, 29.25], [-90.47000000000003, 29.03], [-90.25, 28.5], [-90.47000000000003, 27.97], [-90.82, 27.82], [-90.97000000000003, 27.47], [-91.32, 27.32], [-91.47000000000003, 26.97], [-91.82, 26.82], [-91.97000000000003, 26.47], [-92.32, 26.32], [-92.47000000000003, 25.97], [-92.82, 25.82], [-92.85000000000002, 25.75], [-92.75, 25.5], [-92.97000000000003, 24.97], [-93.5, 24.75], [-94.02999999999997, 24.97], [-94.18, 25.32], [-94.52999999999997, 25.47], [-94.75, 26.0], [-94.64999999999998, 26.25], [-94.75, 26.5]]]]}, "2024-12-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-94.75, 26.5], [-94.64999999999998, 26.75], [-94.75, 27.0], [-94.52999999999997, 27.53], [-94.18, 27.68], [-94.14999999999998, 27.75], [-94.25, 28.0], [-94.02999999999997, 28.53], [-93.68, 28.68], [-93.52999999999997, 29.03], [-93.0, 29.25], [-92.75, 29.15], [-92.5, 29.25], [-92.25, 29.15], [-92.0, 29.25], [-91.75, 29.15], [-91.5, 29.25], [-91.25, 29.15], [-91.0, 29.25], [-90.47000000000003, 29.03], [-90.25, 28.5], [-90.47000000000003, 27.97], [-90.82, 27.82], [-90.97000000000003, 27.47], [-91.32, 27.32], [-91.47000000000003, 26.97], [-91.82, 26.82], [-91.97000000000003, 26.47], [-92.32, 26.32], [-92.47000000000003, 25.97], [-92.82, 25.82], [-92.85000000000002, 25.75], [-92.75, 25.5], [-92.97000000000003, 24.97], [-93.5, 24.75], [-94.02999999999997, 24.97], [-94.18, 25.32], [-94.52999999999997, 25.47], [-94.75, 26.0], [-94.64999999999998, 26.25], [-94.75, 26.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 5.368002716468197}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.269087096690913}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.129976314968587, 24.61838896009658, 24.656665208604693]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.768814341227255, 25.183581288655603, 25.639385477701865]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.96779317132016, 4.412848412385067, 4.426619706367511]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.017160032550464, 5.368002716468197, 5.153139868891742]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2956030738223254, 1.4490810164892236, 1.475042099931957]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.406422476419533, 1.514164134474752, 1.6636674565849099]}}