{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:20:36.311394", "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": "2019-Sep-22_to_2019-Sep-24_282.5_38.5"}, "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": 2019090002437}, "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": "September 22 2019"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "September 24 2019"}, "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": 75866.30717421029}, "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": ["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": ["North Atlantic Ocean"]}, "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": 38.5}, "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": 282.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "282.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 279.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 284.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2019-09-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, 37.5], [-80.53, 38.03], [-80.0, 38.25], [-79.75, 38.15], [-79.5, 38.25], [-79.25, 38.15], [-79.18, 38.18], [-79.03, 38.53], [-78.68, 38.68], [-78.53, 39.03], [-78.18, 39.18], [-78.03, 39.53], [-77.5, 39.75], [-77.25, 39.65], [-77.0, 39.75], [-76.75, 39.65], [-76.5, 39.75], [-76.25, 39.65], [-76.0, 39.75], [-75.47, 39.53], [-75.25, 39.0], [-75.47, 38.47], [-75.82, 38.32], [-75.85, 38.25], [-75.75, 38.0], [-75.97, 37.47], [-76.32, 37.32], [-76.47, 36.97], [-76.82, 36.82], [-76.97, 36.47], [-77.5, 36.25], [-77.75, 36.35], [-77.82, 36.32], [-77.97, 35.97], [-78.5, 35.75], [-78.75, 35.85], [-79.0, 35.75], [-79.25, 35.85], [-79.5, 35.75], [-79.75, 35.85], [-80.0, 35.75], [-80.25, 35.85], [-80.5, 35.75], [-81.03, 35.97], [-81.25, 36.5], [-81.03, 37.03], [-80.68, 37.18], [-80.65, 37.25], [-80.75, 37.5]]]]}, "2019-09-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, 37.5], [-80.53, 38.03], [-80.0, 38.25], [-79.75, 38.15], [-79.5, 38.25], [-79.25, 38.15], [-79.18, 38.18], [-79.03, 38.53], [-78.68, 38.68], [-78.53, 39.03], [-78.18, 39.18], [-78.03, 39.53], [-77.5, 39.75], [-77.25, 39.65], [-77.0, 39.75], [-76.75, 39.65], [-76.5, 39.75], [-76.25, 39.65], [-76.0, 39.75], [-75.47, 39.53], [-75.25, 39.0], [-75.47, 38.47], [-75.82, 38.32], [-75.85, 38.25], [-75.75, 38.0], [-75.97, 37.47], [-76.32, 37.32], [-76.47, 36.97], [-76.82, 36.82], [-76.97, 36.47], [-77.5, 36.25], [-77.75, 36.35], [-77.82, 36.32], [-77.97, 35.97], [-78.5, 35.75], [-78.75, 35.85], [-79.0, 35.75], [-79.25, 35.85], [-79.5, 35.75], [-79.75, 35.85], [-80.0, 35.75], [-80.25, 35.85], [-80.5, 35.75], [-81.03, 35.97], [-81.25, 36.5], [-81.03, 37.03], [-80.68, 37.18], [-80.65, 37.25], [-80.75, 37.5]]]]}, "2019-09-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-80.75, 37.5], [-80.53, 38.03], [-80.0, 38.25], [-79.75, 38.15], [-79.5, 38.25], [-79.25, 38.15], [-79.18, 38.18], [-79.03, 38.53], [-78.68, 38.68], [-78.53, 39.03], [-78.18, 39.18], [-78.03, 39.53], [-77.5, 39.75], [-77.25, 39.65], [-77.0, 39.75], [-76.75, 39.65], [-76.5, 39.75], [-76.25, 39.65], [-76.0, 39.75], [-75.47, 39.53], [-75.25, 39.0], [-75.47, 38.47], [-75.82, 38.32], [-75.85, 38.25], [-75.75, 38.0], [-75.97, 37.47], [-76.32, 37.32], [-76.47, 36.97], [-76.82, 36.82], [-76.97, 36.47], [-77.5, 36.25], [-77.75, 36.35], [-77.82, 36.32], [-77.97, 35.97], [-78.5, 35.75], [-78.75, 35.85], [-79.0, 35.75], [-79.25, 35.85], [-79.5, 35.75], [-79.75, 35.85], [-80.0, 35.75], [-80.25, 35.85], [-80.5, 35.75], [-81.03, 35.97], [-81.25, 36.5], [-81.03, 37.03], [-80.68, 37.18], [-80.65, 37.25], [-80.75, 37.5]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.21345719597764}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.542384269720549}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.081707437379805, 26.080331970112923, 25.051012617195624]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [26.32099264276644, 27.785134527858474, 26.43905044169611]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.049535204189028, 6.249481979941003, 5.328135625031617]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.175372569929948, 8.21345719597764, 6.205724971429504]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6196021895773152, 1.9399876209776452, 1.6169703169472294]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9044461201038172, 2.407494672543732, 1.8115981625445]}}