{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:30:44.568618", "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-Apr-10_to_2022-Apr-13_258.5_29.5"}, "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": 2022040001620}, "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 10 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 13 2022"}, "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": 390937.76629370835}, "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": ["Mexico", "United States"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "N.Central-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": []}, "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": 29.5}, "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": 258.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "258.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 255.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 264.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 25.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.25, 32.0], [-105.03, 32.53], [-104.68, 32.68], [-104.53, 33.03], [-104.0, 33.25], [-103.75, 33.15], [-103.5, 33.25], [-103.25, 33.15], [-103.0, 33.25], [-102.75, 33.15], [-102.5, 33.25], [-102.25, 33.15], [-102.0, 33.25], [-101.75, 33.15], [-101.5, 33.25], [-100.97, 33.03], [-100.82, 32.68], [-100.75, 32.65], [-100.68, 32.68], [-100.53, 33.03], [-100.18, 33.18], [-100.03, 33.53], [-99.68, 33.68], [-99.53, 34.03], [-99.18, 34.18], [-99.03, 34.53], [-98.5, 34.75], [-98.25, 34.65], [-98.0, 34.75], [-97.75, 34.65], [-97.5, 34.75], [-96.97, 34.53], [-96.75, 34.0], [-96.85, 33.75], [-96.75, 33.5], [-96.97, 32.97], [-97.32, 32.82], [-97.35, 32.75], [-97.25, 32.5], [-97.47, 31.97], [-97.82, 31.82], [-97.97, 31.47], [-98.32, 31.32], [-98.47, 30.97], [-98.82, 30.82], [-98.97, 30.47], [-99.32, 30.32], [-99.35, 30.25], [-99.25, 30.0], [-99.47, 29.47], [-100.0, 29.25], [-100.25, 29.35], [-100.5, 29.25], [-100.75, 29.35], [-100.82, 29.32], [-100.85, 29.25], [-100.75, 29.0], [-100.97, 28.47], [-101.5, 28.25], [-101.75, 28.35], [-102.0, 28.25], [-102.3, 28.38], [-102.47, 27.97], [-103.0, 27.75], [-103.53, 27.97], [-103.75, 28.5], [-103.54, 29.0], [-103.68, 29.32], [-104.03, 29.47], [-104.18, 29.82], [-104.53, 29.97], [-104.75, 30.5], [-104.65, 30.75], [-104.75, 31.0], [-104.65, 31.25], [-104.68, 31.32], [-105.03, 31.47], [-105.25, 32.0]]]]}, "2022-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.25, 32.0], [-105.03, 32.53], [-104.68, 32.68], [-104.53, 33.03], [-104.0, 33.25], [-103.75, 33.15], [-103.5, 33.25], [-103.25, 33.15], [-103.0, 33.25], [-102.75, 33.15], [-102.5, 33.25], [-102.25, 33.15], [-102.0, 33.25], [-101.75, 33.15], [-101.5, 33.25], [-100.97, 33.03], [-100.82, 32.68], [-100.75, 32.65], [-100.68, 32.68], [-100.53, 33.03], [-100.18, 33.18], [-100.03, 33.53], [-99.68, 33.68], [-99.53, 34.03], [-99.18, 34.18], [-99.03, 34.53], [-98.5, 34.75], [-98.25, 34.65], [-98.0, 34.75], [-97.75, 34.65], [-97.5, 34.75], [-96.97, 34.53], [-96.75, 34.0], [-96.85, 33.75], [-96.75, 33.5], [-96.87, 33.2], [-96.47, 33.03], [-96.32, 32.68], [-95.97, 32.53], [-95.82, 32.18], [-95.75, 32.15], [-95.5, 32.25], [-94.97, 32.03], [-94.75, 31.5], [-94.85, 31.25], [-94.75, 31.0], [-94.85, 30.75], [-94.75, 30.5], [-94.85, 30.25], [-94.75, 30.0], [-94.97, 29.47], [-95.5, 29.25], [-95.75, 29.35], [-96.0, 29.25], [-96.25, 29.35], [-96.5, 29.25], [-96.75, 29.35], [-97.0, 29.25], [-97.25, 29.35], [-97.5, 29.25], [-97.75, 29.35], [-97.82, 29.32], [-97.97, 28.97], [-98.32, 28.82], [-98.47, 28.47], [-99.0, 28.25], [-99.25, 28.35], [-99.32, 28.32], [-99.47, 27.97], [-100.0, 27.75], [-99.47, 27.53], [-99.25, 27.0], [-99.35, 26.75], [-99.32, 26.68], [-98.97, 26.53], [-98.75, 26.0], [-98.97, 25.47], [-99.5, 25.25], [-99.75, 25.35], [-100.0, 25.25], [-100.25, 25.35], [-100.5, 25.25], [-100.75, 25.35], [-101.0, 25.25], [-101.53, 25.47], [-101.75, 26.0], [-101.65, 26.25], [-101.68, 26.32], [-102.03, 26.47], [-102.18, 26.82], [-102.53, 26.97], [-102.68, 27.32], [-103.03, 27.47], [-103.18, 27.82], [-103.53, 27.97], [-103.75, 28.5], [-103.54, 29.0], [-103.68, 29.32], [-104.03, 29.47], [-104.18, 29.82], [-104.53, 29.97], [-104.75, 30.5], [-104.65, 30.75], [-104.75, 31.0], [-104.65, 31.25], [-104.68, 31.32], [-105.03, 31.47], [-105.25, 32.0]], [[-100.25, 27.85], [-100.5, 27.75], [-100.25, 27.65], [-100.0, 27.75], [-100.25, 27.85]], [[-100.8, 27.88], [-100.85, 27.75], [-100.82, 27.68], [-100.75, 27.65], [-100.5, 27.75], [-100.8, 27.88]]]]}, "2022-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-105.25, 32.0], [-105.03, 32.53], [-104.68, 32.68], [-104.53, 33.03], [-104.0, 33.25], [-103.75, 33.15], [-103.5, 33.25], [-103.25, 33.15], [-103.0, 33.25], [-102.75, 33.15], [-102.5, 33.25], [-102.25, 33.15], [-102.0, 33.25], [-101.75, 33.15], [-101.5, 33.25], [-100.97, 33.03], [-100.82, 32.68], [-100.75, 32.65], [-100.68, 32.68], [-100.53, 33.03], [-100.18, 33.18], [-100.03, 33.53], [-99.68, 33.68], [-99.53, 34.03], [-99.18, 34.18], [-99.03, 34.53], [-98.5, 34.75], [-98.25, 34.65], [-98.0, 34.75], [-97.75, 34.65], [-97.5, 34.75], [-96.97, 34.53], [-96.75, 34.0], [-96.85, 33.75], [-96.75, 33.5], [-96.87, 33.2], [-96.47, 33.03], [-96.32, 32.68], [-95.97, 32.53], [-95.82, 32.18], [-95.75, 32.15], [-95.5, 32.25], [-94.97, 32.03], [-94.75, 31.5], [-94.85, 31.25], [-94.75, 31.0], [-94.85, 30.75], [-94.75, 30.5], [-94.85, 30.25], [-94.75, 30.0], [-94.97, 29.47], [-95.5, 29.25], [-95.75, 29.35], [-96.0, 29.25], [-96.25, 29.35], [-96.5, 29.25], [-96.75, 29.35], [-97.0, 29.25], [-97.25, 29.35], [-97.5, 29.25], [-97.75, 29.35], [-97.82, 29.32], [-97.97, 28.97], [-98.32, 28.82], [-98.47, 28.47], [-99.0, 28.25], [-99.25, 28.35], [-99.32, 28.32], [-99.47, 27.97], [-100.0, 27.75], [-99.47, 27.53], [-99.25, 27.0], [-99.35, 26.75], [-99.32, 26.68], [-98.97, 26.53], [-98.75, 26.0], [-98.97, 25.47], [-99.5, 25.25], [-99.75, 25.35], [-100.0, 25.25], [-100.25, 25.35], [-100.5, 25.25], [-100.75, 25.35], [-101.0, 25.25], [-101.53, 25.47], [-101.75, 26.0], [-101.65, 26.25], [-101.68, 26.32], [-102.03, 26.47], [-102.18, 26.82], [-102.53, 26.97], [-102.68, 27.32], [-103.03, 27.47], [-103.18, 27.82], [-103.53, 27.97], [-103.75, 28.5], [-103.54, 29.0], [-103.68, 29.32], [-104.03, 29.47], [-104.18, 29.82], [-104.53, 29.97], [-104.75, 30.5], [-104.65, 30.75], [-104.75, 31.0], [-104.65, 31.25], [-104.68, 31.32], [-105.03, 31.47], [-105.25, 32.0]], [[-100.25, 27.85], [-100.5, 27.75], [-100.25, 27.65], [-100.0, 27.75], [-100.25, 27.85]], [[-100.8, 27.88], [-100.85, 27.75], [-100.82, 27.68], [-100.75, 27.65], [-100.5, 27.75], [-100.8, 27.88]]]]}, "2022-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.03, 30.53], [-102.68, 30.68], [-102.53, 31.03], [-102.18, 31.18], [-102.03, 31.53], [-101.5, 31.75], [-101.25, 31.65], [-101.18, 31.68], [-101.03, 32.03], [-100.5, 32.25], [-100.25, 32.15], [-100.18, 32.18], [-100.03, 32.53], [-99.5, 32.75], [-99.25, 32.65], [-99.18, 32.68], [-99.03, 33.03], [-98.5, 33.25], [-98.25, 33.15], [-98.0, 33.25], [-97.75, 33.15], [-97.5, 33.25], [-97.25, 33.15], [-97.0, 33.25], [-96.47, 33.03], [-96.32, 32.68], [-95.97, 32.53], [-95.82, 32.18], [-95.75, 32.15], [-95.5, 32.25], [-94.97, 32.03], [-94.75, 31.5], [-94.85, 31.25], [-94.75, 31.0], [-94.85, 30.75], [-94.75, 30.5], [-94.85, 30.25], [-94.75, 30.0], [-94.97, 29.47], [-95.5, 29.25], [-95.75, 29.35], [-96.0, 29.25], [-96.25, 29.35], [-96.5, 29.25], [-96.75, 29.35], [-97.0, 29.25], [-97.25, 29.35], [-97.5, 29.25], [-97.75, 29.35], [-97.82, 29.32], [-97.97, 28.97], [-98.32, 28.82], [-98.47, 28.47], [-99.0, 28.25], [-99.25, 28.35], [-99.32, 28.32], [-99.47, 27.97], [-100.0, 27.75], [-99.47, 27.53], [-99.25, 27.0], [-99.35, 26.75], [-99.32, 26.68], [-98.97, 26.53], [-98.75, 26.0], [-98.97, 25.47], [-99.5, 25.25], [-99.75, 25.35], [-100.0, 25.25], [-100.25, 25.35], [-100.5, 25.25], [-100.75, 25.35], [-101.0, 25.25], [-101.53, 25.47], [-101.75, 26.0], [-101.65, 26.25], [-101.68, 26.32], [-102.03, 26.47], [-102.18, 26.82], [-102.53, 26.97], [-102.68, 27.32], [-103.03, 27.47], [-103.25, 28.0], [-103.03, 28.53], [-102.68, 28.68], [-102.65, 28.75], [-102.68, 28.82], [-103.03, 28.97], [-103.25, 29.5], [-103.15, 29.75], [-103.25, 30.0], [-103.03, 30.53]], [[-100.25, 27.85], [-100.5, 27.75], [-100.25, 27.65], [-100.0, 27.75], [-100.25, 27.85]], [[-100.8, 27.88], [-100.85, 27.75], [-100.82, 27.68], [-100.75, 27.65], [-100.5, 27.75], [-100.8, 27.88]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.940745415192282}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.2852753074939915}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.292505181661852, 25.196810995044473, 26.334785490381307, 26.525181507556567]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.670235920533116, 30.507673522723564, 31.4472101834603, 32.11708921762039]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.9337443624736625, 5.88563596453726, 6.88138379891956, 6.277455830965191]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.952863588804064, 7.678895375125705, 8.940745415192282, 8.114019176528643]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.37308156182176, 1.4562692076914727, 1.7164764379662056, 1.6664721794666544]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6812338720298627, 1.8159543351150849, 2.330731990937587, 2.381366707920295]}}