{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:17:13.004177", "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-Jan-20_to_2022-Jan-22_285.5_26.0"}, "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": 2022010002393}, "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": "January 20 2022"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 22 2022"}, "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": 77920.79400061088}, "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": ["Bahamas"]}, "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": ["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": 26.0}, "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": 285.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "285.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 282.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 285.5}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 23.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 27.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-78.53, 25.53], [-78.18, 25.68], [-78.15, 25.75], [-78.25, 26.0], [-78.03, 26.53], [-77.68, 26.68], [-77.53, 27.03], [-77.18, 27.18], [-77.03, 27.53], [-76.5, 27.75], [-76.25, 27.65], [-76.18, 27.68], [-76.03, 28.03], [-75.5, 28.25], [-74.97, 28.03], [-74.75, 27.5], [-74.85, 27.25], [-74.82, 27.18], [-74.47, 27.03], [-74.32, 26.68], [-73.97, 26.53], [-73.75, 26.0], [-73.85, 25.75], [-73.75, 25.5], [-73.97, 24.97], [-74.5, 24.75], [-74.75, 24.85], [-75.0, 24.75], [-75.25, 24.85], [-75.5, 24.75], [-75.75, 24.85], [-76.0, 24.75], [-76.25, 24.85], [-76.5, 24.75], [-76.75, 24.85], [-76.87, 24.8], [-76.75, 24.5], [-76.85, 24.25], [-76.82, 24.18], [-76.47, 24.03], [-76.25, 23.5], [-76.47, 22.97], [-77.0, 22.75], [-77.25, 22.85], [-77.5, 22.75], [-78.03, 22.97], [-78.25, 23.5], [-78.15, 23.75], [-78.25, 24.0], [-78.15, 24.25], [-78.18, 24.32], [-78.53, 24.47], [-78.75, 25.0], [-78.53, 25.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America", "Caribbean"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2022-01-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.52999999999997, 24.47], [-78.75, 25.0], [-78.52999999999997, 25.53], [-78.18, 25.68], [-78.14999999999998, 25.75], [-78.25, 26.0], [-78.02999999999997, 26.53], [-77.68, 26.68], [-77.52999999999997, 27.03], [-77.18, 27.18], [-77.02999999999997, 27.53], [-76.5, 27.75], [-76.25, 27.65], [-76.18, 27.68], [-76.02999999999997, 28.03], [-75.5, 28.25], [-74.97000000000003, 28.03], [-74.75, 27.5], [-74.85000000000002, 27.25], [-74.82, 27.18], [-74.47000000000003, 27.03], [-74.32, 26.68], [-73.97000000000003, 26.53], [-73.75, 26.0], [-73.85000000000002, 25.75], [-73.75, 25.5], [-73.97000000000003, 24.97], [-74.5, 24.75], [-74.75, 24.85], [-75.0, 24.75], [-75.25, 24.85], [-75.5, 24.75], [-75.75, 24.85], [-76.0, 24.75], [-76.25, 24.85], [-76.5, 24.75], [-76.75, 24.85], [-76.87, 24.8], [-76.75, 24.5], [-76.85000000000002, 24.25], [-76.82, 24.18], [-76.47000000000003, 24.03], [-76.25, 23.5], [-76.47000000000003, 22.97], [-77.0, 22.75], [-77.25, 22.85], [-77.5, 22.75], [-78.02999999999997, 22.97], [-78.25, 23.5], [-78.14999999999998, 23.75], [-78.25, 24.0], [-78.14999999999998, 24.25], [-78.18, 24.32], [-78.52999999999997, 24.47]]]]}, "2022-01-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.52999999999997, 24.47], [-78.75, 25.0], [-78.52999999999997, 25.53], [-78.18, 25.68], [-78.14999999999998, 25.75], [-78.25, 26.0], [-78.02999999999997, 26.53], [-77.68, 26.68], [-77.52999999999997, 27.03], [-77.18, 27.18], [-77.02999999999997, 27.53], [-76.5, 27.75], [-76.25, 27.65], [-76.18, 27.68], [-76.02999999999997, 28.03], [-75.5, 28.25], [-74.97000000000003, 28.03], [-74.75, 27.5], [-74.85000000000002, 27.25], [-74.82, 27.18], [-74.47000000000003, 27.03], [-74.32, 26.68], [-73.97000000000003, 26.53], [-73.75, 26.0], [-73.85000000000002, 25.75], [-73.75, 25.5], [-73.97000000000003, 24.97], [-74.5, 24.75], [-74.75, 24.85], [-75.0, 24.75], [-75.25, 24.85], [-75.5, 24.75], [-75.75, 24.85], [-76.0, 24.75], [-76.25, 24.85], [-76.5, 24.75], [-76.75, 24.85], [-76.87, 24.8], [-76.75, 24.5], [-76.85000000000002, 24.25], [-76.82, 24.18], [-76.47000000000003, 24.03], [-76.25, 23.5], [-76.47000000000003, 22.97], [-77.0, 22.75], [-77.25, 22.85], [-77.5, 22.75], [-78.02999999999997, 22.97], [-78.25, 23.5], [-78.14999999999998, 23.75], [-78.25, 24.0], [-78.14999999999998, 24.25], [-78.18, 24.32], [-78.52999999999997, 24.47]]]]}, "2022-01-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.52999999999997, 24.47], [-78.75, 25.0], [-78.52999999999997, 25.53], [-78.18, 25.68], [-78.14999999999998, 25.75], [-78.25, 26.0], [-78.02999999999997, 26.53], [-77.68, 26.68], [-77.52999999999997, 27.03], [-77.18, 27.18], [-77.02999999999997, 27.53], [-76.5, 27.75], [-76.25, 27.65], [-76.18, 27.68], [-76.02999999999997, 28.03], [-75.5, 28.25], [-74.97000000000003, 28.03], [-74.75, 27.5], 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"value": 2.286161992446717}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.860929508882066, 24.290647931610295, 24.19580190490734]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.460314192227827, 25.143073934564313, 24.960661347588314]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [1.992900585278008, 2.4639603169952187, 2.4016250750669252]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [2.437943439506739, 3.0622093824121634, 2.945621431259326]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2231430593135184, 1.447846979782428, 1.3804366158891548]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.340067444893502, 1.6988554787558106, 1.8015713664429835]}}