{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:44.186680", "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": "2017-Apr-14_to_2017-Apr-16_272.0_36.0"}, "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": 2017040001960}, "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 14 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 16 2017"}, "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": 223337.7962782305}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "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": []}, "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": 36.0}, "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": 272.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "272.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 268.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 276.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 33.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-04-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.25, 39.0], [-92.03, 39.53], [-91.68, 39.68], [-91.53, 40.03], [-91.0, 40.25], [-90.75, 40.15], [-90.68, 40.18], [-90.53, 40.53], [-90.0, 40.75], [-89.75, 40.65], [-89.5, 40.75], [-89.25, 40.65], [-89.0, 40.75], [-88.75, 40.65], [-88.5, 40.75], [-87.97, 40.53], [-87.82, 40.18], [-87.75, 40.15], [-87.5, 40.25], [-86.97, 40.03], [-86.75, 39.5], [-86.85, 39.25], [-86.75, 39.0], [-86.97, 38.47], [-87.32, 38.32], [-87.46, 38.0], [-87.25, 37.5], [-87.46, 37.0], [-87.32, 36.68], [-87.25, 36.65], [-87.18, 36.68], [-87.03, 37.03], [-86.5, 37.25], [-85.97, 37.03], [-85.75, 36.5], [-85.87, 36.2], [-85.75, 36.15], [-85.68, 36.18], [-85.53, 36.53], [-85.0, 36.75], [-84.47, 36.53], [-84.25, 36.0], [-84.35, 35.75], [-84.32, 35.68], [-84.25, 35.65], [-84.0, 35.75], [-83.47, 35.53], [-83.25, 35.0], [-83.47, 34.47], [-83.82, 34.32], [-83.97, 33.97], [-84.5, 33.75], [-85.0, 33.96], [-85.5, 33.75], [-85.75, 33.85], [-85.82, 33.82], [-85.97, 33.47], [-86.5, 33.25], [-86.75, 33.35], [-87.0, 33.25], [-87.25, 33.35], [-87.32, 33.32], [-87.47, 32.97], [-88.0, 32.75], [-88.53, 32.97], [-88.68, 33.32], [-88.75, 33.35], [-88.82, 33.32], [-88.97, 32.97], [-89.5, 32.75], [-90.03, 32.97], [-90.25, 33.5], [-90.15, 33.75], [-90.25, 34.0], [-90.15, 34.25], [-90.18, 34.32], [-90.53, 34.47], [-90.75, 35.0], [-90.65, 35.25], [-90.68, 35.32], [-91.03, 35.47], [-91.25, 36.0], [-91.15, 36.25], [-91.25, 36.5], [-91.03, 37.03], [-90.68, 37.18], [-90.54, 37.5], [-90.68, 37.82], [-90.75, 37.85], [-91.0, 37.75], [-91.53, 37.97], [-91.68, 38.32], [-92.03, 38.47], [-92.25, 39.0]]]]}, "2017-04-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.25, 39.0], [-92.03, 39.53], [-91.68, 39.68], [-91.53, 40.03], [-91.0, 40.25], [-90.75, 40.15], [-90.68, 40.18], [-90.53, 40.53], [-90.0, 40.75], [-89.75, 40.65], [-89.5, 40.75], [-89.25, 40.65], [-89.0, 40.75], [-88.75, 40.65], [-88.5, 40.75], [-87.97, 40.53], [-87.82, 40.18], [-87.75, 40.15], [-87.5, 40.25], [-86.97, 40.03], [-86.75, 39.5], [-86.85, 39.25], [-86.75, 39.0], [-86.97, 38.47], [-87.32, 38.32], [-87.46, 38.0], [-87.25, 37.5], [-87.46, 37.0], [-87.32, 36.68], [-87.25, 36.65], [-87.18, 36.68], [-87.03, 37.03], [-86.5, 37.25], [-85.97, 37.03], [-85.75, 36.5], [-85.87, 36.2], [-85.75, 36.15], [-85.68, 36.18], [-85.53, 36.53], [-85.0, 36.75], [-84.47, 36.53], [-84.25, 36.0], [-84.35, 35.75], [-84.32, 35.68], [-84.25, 35.65], [-84.0, 35.75], [-83.47, 35.53], [-83.25, 35.0], [-83.47, 34.47], [-83.82, 34.32], [-83.97, 33.97], [-84.5, 33.75], [-85.0, 33.96], [-85.5, 33.75], [-85.75, 33.85], [-85.82, 33.82], [-85.97, 33.47], [-86.5, 33.25], [-86.75, 33.35], [-87.0, 33.25], [-87.25, 33.35], [-87.32, 33.32], [-87.47, 32.97], [-88.0, 32.75], [-88.53, 32.97], [-88.68, 33.32], [-88.75, 33.35], [-88.82, 33.32], [-88.97, 32.97], [-89.5, 32.75], [-90.03, 32.97], [-90.25, 33.5], [-90.15, 33.75], [-90.25, 34.0], [-90.15, 34.25], [-90.18, 34.32], [-90.53, 34.47], [-90.75, 35.0], [-90.65, 35.25], [-90.68, 35.32], [-91.03, 35.47], [-91.25, 36.0], [-91.15, 36.25], [-91.25, 36.5], [-91.03, 37.03], [-90.68, 37.18], [-90.54, 37.5], [-90.68, 37.82], [-90.75, 37.85], [-91.0, 37.75], [-91.53, 37.97], [-91.68, 38.32], [-92.03, 38.47], [-92.25, 39.0]]]]}, "2017-04-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.25, 39.0], [-92.03, 39.53], [-91.68, 39.68], [-91.53, 40.03], [-91.0, 40.25], [-90.75, 40.15], [-90.68, 40.18], [-90.53, 40.53], [-90.0, 40.75], [-89.75, 40.65], [-89.5, 40.75], [-89.25, 40.65], [-89.0, 40.75], [-88.75, 40.65], [-88.5, 40.75], [-87.97, 40.53], [-87.82, 40.18], [-87.75, 40.15], [-87.5, 40.25], [-86.97, 40.03], [-86.75, 39.5], [-86.85, 39.25], [-86.75, 39.0], [-86.97, 38.47], [-87.32, 38.32], [-87.46, 38.0], [-87.25, 37.5], [-87.46, 37.0], [-87.32, 36.68], [-87.25, 36.65], [-87.18, 36.68], [-87.03, 37.03], [-86.5, 37.25], [-85.97, 37.03], [-85.75, 36.5], [-85.87, 36.2], [-85.75, 36.15], [-85.68, 36.18], [-85.53, 36.53], [-85.0, 36.75], [-84.47, 36.53], [-84.25, 36.0], [-84.35, 35.75], [-84.32, 35.68], [-84.25, 35.65], [-84.0, 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amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.774667245636802}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.707227144866238, 22.50100781999697, 21.948815167812313]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.024631019952665, 23.490267536347517, 23.552320745399584]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.562176519220813, 7.23708894340244, 6.524736274287163]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.328516486350907, 9.960963614602804, 7.9976965298432106]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4093735177843916, 1.5389478021548115, 1.374263208289535]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6049066019727645, 1.8258567140119113, 1.5615415614710508]}}