{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:15:39.418072", "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": "2021-Nov-05_to_2021-Nov-09_254.5_39.0"}, "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": 2021110001477}, "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 05 2021"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 09 2021"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 143005.57471021143}, "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": 39.0}, "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": 254.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "254.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 253.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 257.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 35.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-105.97, 34.47], [-106.5, 34.25], [-107.03, 34.47], [-107.25, 35.0], [-107.04, 35.5], [-107.18, 35.82], [-107.53, 35.97], [-107.75, 36.5], [-107.53, 37.03], [-107.12, 37.2], [-107.15, 37.26], [-107.18, 37.32], [-107.53, 37.47], [-107.75, 38.0], [-107.53, 38.53], [-107.18, 38.68], [-107.03, 39.03], [-106.68, 39.18], [-106.53, 39.53], [-106.18, 39.68], [-106.15, 39.75], [-106.25, 40.0], [-106.15, 40.25], [-106.25, 40.5], [-106.03, 41.03], [-105.5, 41.25], [-105.25, 41.15], [-105.0, 41.25], [-104.75, 41.15], [-104.5, 41.25], [-104.25, 41.15], [-104.18, 41.18], [-104.03, 41.53], [-103.5, 41.75], [-102.97, 41.53], [-102.82, 41.18], [-102.75, 41.15], [-102.5, 41.25], [-101.97, 41.03], [-101.75, 40.5], [-101.85, 40.25], [-101.75, 40.0], [-101.85, 39.75], [-101.75, 39.5], [-101.97, 38.97], [-102.5, 38.75], [-102.75, 38.85], [-102.87, 38.8], [-102.75, 38.5], [-102.97, 37.97], [-103.5, 37.75], [-103.75, 37.85], [-103.82, 37.82], [-103.85, 37.75], [-103.75, 37.5], [-103.85, 37.25], [-103.82, 37.18], [-103.75, 37.15], [-103.5, 37.25], [-102.97, 37.03], [-102.75, 36.5], [-102.97, 35.97], [-103.5, 35.75], [-103.75, 35.85], [-104.0, 35.75], [-104.25, 35.85], [-104.32, 35.82], [-104.35, 35.75], [-104.25, 35.5], [-104.47, 34.97], [-105.0, 34.75], [-105.25, 34.85], [-105.5, 34.75], [-105.75, 34.85], [-105.82, 34.82], [-105.97, 34.47]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.North-America", "C.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2021-11-05T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.25, 38.0], [-107.15, 38.25], [-107.25, 38.5], [-107.03, 39.03], [-106.68, 39.18], [-106.53, 39.53], [-106.18, 39.68], [-106.15, 39.75], [-106.25, 40.0], [-106.15, 40.25], [-106.25, 40.5], [-106.03, 41.03], [-105.5, 41.25], [-105.25, 41.15], [-105.0, 41.25], [-104.75, 41.15], [-104.5, 41.25], [-104.25, 41.15], [-104.18, 41.18], [-104.03, 41.53], [-103.5, 41.75], [-102.97000000000003, 41.53], [-102.82, 41.18], [-102.75, 41.15], [-102.5, 41.25], [-101.97000000000003, 41.03], [-101.75, 40.5], [-101.85000000000002, 40.25], [-101.75, 40.0], [-101.85000000000002, 39.75], [-101.75, 39.5], [-101.97000000000003, 38.97], [-102.5, 38.75], [-102.75, 38.85], [-103.0, 38.75], [-103.25, 38.85], [-103.5, 38.75], [-103.75, 38.85], [-104.0, 38.75], [-104.25, 38.85], [-104.32, 38.82], [-104.35, 38.75], [-104.25, 38.5], [-104.35, 38.25], [-104.25, 38.0], [-104.35, 37.75], [-104.25, 37.5], [-104.35, 37.25], [-104.25, 37.0], [-104.47, 36.47], [-105.0, 36.25], [-105.53, 36.47], [-105.68, 36.82], [-106.0, 36.96], [-106.5, 36.75], [-107.03, 36.97], [-107.25, 37.5], [-107.15, 37.75], [-107.25, 38.0]]]]}, "2021-11-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.53, 35.97], [-107.75, 36.5], [-107.53, 37.03], [-107.12, 37.2], [-107.18, 37.32], [-107.53, 37.47], [-107.75, 38.0], [-107.53, 38.53], [-107.18, 38.68], [-107.03, 39.03], [-106.68, 39.18], [-106.53, 39.53], [-106.18, 39.68], [-106.15, 39.75], [-106.25, 40.0], [-106.15, 40.25], [-106.25, 40.5], [-106.03, 41.03], [-105.5, 41.25], [-105.25, 41.15], [-105.0, 41.25], [-104.75, 41.15], [-104.5, 41.25], [-104.25, 41.15], [-104.18, 41.18], [-104.03, 41.53], [-103.5, 41.75], [-102.97000000000003, 41.53], [-102.82, 41.18], [-102.75, 41.15], [-102.5, 41.25], [-101.97000000000003, 41.03], [-101.75, 40.5], [-101.85000000000002, 40.25], [-101.75, 40.0], [-101.85000000000002, 39.75], [-101.75, 39.5], [-101.97000000000003, 38.97], [-102.5, 38.75], [-102.75, 38.85], [-102.87, 38.8], [-102.75, 38.5], [-102.97000000000003, 37.97], [-103.5, 37.75], [-103.75, 37.85], [-103.82, 37.82], [-103.85000000000002, 37.75], [-103.75, 37.5], [-103.85000000000002, 37.25], [-103.82, 37.18], [-103.75, 37.15], [-103.5, 37.25], [-102.97000000000003, 37.03], [-102.75, 36.5], [-102.97000000000003, 35.97], [-103.5, 35.75], [-103.75, 35.85], [-104.0, 35.75], [-104.25, 35.85], [-104.32, 35.82], [-104.35, 35.75], [-104.25, 35.5], [-104.47, 34.97], [-105.0, 34.75], [-105.25, 34.85], [-105.5, 34.75], [-105.80000000000001, 34.88], [-105.97, 34.47], [-106.5, 34.25], [-107.03, 34.47], [-107.25, 35.0], [-107.03999999999999, 35.5], [-107.18, 35.82], [-107.53, 35.97]]]]}, "2021-11-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.53, 35.97], [-107.75, 36.5], [-107.53, 37.03], [-107.12, 37.2], [-107.18, 37.32], [-107.53, 37.47], [-107.75, 38.0], [-107.53, 38.53], [-107.18, 38.68], [-107.03, 39.03], [-106.68, 39.18], [-106.53, 39.53], [-106.18, 39.68], [-106.15, 39.75], [-106.25, 40.0], [-106.15, 40.25], [-106.25, 40.5], [-106.03, 41.03], [-105.5, 41.25], [-105.25, 41.15], [-105.0, 41.25], [-104.75, 41.15], [-104.5, 41.25], [-104.25, 41.15], [-104.18, 41.18], [-104.03, 41.53], [-103.5, 41.75], [-102.97000000000003, 41.53], [-102.82, 41.18], [-102.75, 41.15], [-102.5, 41.25], [-101.97000000000003, 41.03], [-101.75, 40.5], [-101.85000000000002, 40.25], [-101.75, 40.0], [-101.85000000000002, 39.75], [-101.75, 39.5], [-101.97000000000003, 38.97], [-102.5, 38.75], [-102.75, 38.85], [-102.87, 38.8], [-102.75, 38.5], [-102.97000000000003, 37.97], [-103.5, 37.75], [-103.75, 37.85], [-103.82, 37.82], [-103.85000000000002, 37.75], [-103.75, 37.5], [-103.85000000000002, 37.25], [-103.82, 37.18], [-103.75, 37.15], [-103.5, 37.25], [-102.97000000000003, 37.03], [-102.75, 36.5], [-102.97000000000003, 35.97], [-103.5, 35.75], [-103.75, 35.85], [-104.0, 35.75], [-104.25, 35.85], [-104.32, 35.82], [-104.35, 35.75], [-104.25, 35.5], [-104.47, 34.97], [-105.0, 34.75], [-105.25, 34.85], [-105.5, 34.75], [-105.75, 34.85], [-105.82, 34.82], [-105.97, 34.47], [-106.5, 34.25], [-107.03, 34.47], [-107.25, 35.0], [-107.03999999999999, 35.5], [-107.18, 35.82], [-107.53, 35.97]]]]}, "2021-11-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.53, 35.97], [-107.75, 36.5], [-107.53, 37.03], [-107.12, 37.2], [-107.18, 37.32], [-107.53, 37.47], [-107.75, 38.0], [-107.53, 38.53], [-107.18, 38.68], [-107.03, 39.03], [-106.68, 39.18], [-106.53, 39.53], [-106.18, 39.68], [-106.03, 40.03], [-105.5, 40.25], [-104.97, 40.03], [-104.82, 39.68], [-104.47, 39.53], [-104.32, 39.18], [-104.25, 39.15], [-104.0, 39.25], [-103.75, 39.15], [-103.5, 39.25], [-102.97000000000003, 39.03], [-102.75, 38.5], [-102.97000000000003, 37.97], [-103.5, 37.75], [-103.75, 37.85], [-103.82, 37.82], [-103.85000000000002, 37.75], [-103.75, 37.5], [-103.85000000000002, 37.25], [-103.82, 37.18], [-103.75, 37.15], [-103.5, 37.25], [-102.97000000000003, 37.03], [-102.75, 36.5], [-102.97000000000003, 35.97], [-103.5, 35.75], [-103.75, 35.85], [-104.0, 35.75], [-104.25, 35.85], [-104.32, 35.82], [-104.35, 35.75], [-104.25, 35.5], [-104.47, 34.97], [-105.0, 34.75], [-105.25, 34.85], [-105.5, 34.75], [-105.75, 34.85], [-105.82, 34.82], [-105.97, 34.47], [-106.5, 34.25], [-107.03, 34.47], [-107.25, 35.0], [-107.03999999999999, 35.5], [-107.18, 35.82], [-107.53, 35.97]]]]}, "2021-11-09T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.53, 36.03], [-106.0, 36.25], [-105.47, 36.03], [-105.25, 35.5], [-105.47, 34.97], [-106.0, 34.75], [-106.53, 34.97], [-106.75, 35.5], [-106.53, 36.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.164183962942559}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.643018680922334}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [9.634034675253076, 9.67418984887513, 11.33182111079384, 8.599064946829742, 10.876651459526443]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [13.818997272476338, 13.955724220546927, 17.6178591560502, 16.70281049885864, 10.876651459526443]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.630172280035552, 6.046497148673381, 7.682286791994776, 6.012476739981996, 4.334666784856779]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.079748951262161, 7.665207772698466, 11.164183962942559, 8.842101279699534, 4.334666784856779]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3578103821146463, 1.3334288014198856, 1.764823614972792, 1.442179062956321, 1.239626385948946]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5746188211731869, 1.633380688303055, 2.3167665263721906, 1.9541963070667068, 1.239626385948946]}}