{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-04-05 16:58:38.249025", "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": "2024-Apr-29_to_2024-May-03_282.0_40.0"}, "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": 2024040002096}, "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 29 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 03 2024"}, "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": 104992.58806798508}, "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": ["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": 40.0}, "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": 282.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "282.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 281.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 285.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.5}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "MultiPolygon", "coordinates": [[[[-79.03, 40.53], [-78.5, 40.75], [-78.25, 40.65], [-78.18, 40.68], [-78.04, 41.0], [-78.25, 41.5], [-78.03, 42.03], [-77.5, 42.25], [-77.25, 42.15], [-77.0, 42.25], [-76.75, 42.15], [-76.5, 42.25], [-75.97, 42.03], [-75.82, 41.68], [-75.75, 41.65], [-75.5, 41.75], [-75.25, 41.65], [-75.0, 41.75], [-74.47, 41.53], [-74.25, 41.0], [-74.47, 40.47], [-74.82, 40.32], [-74.85, 40.25], [-74.82, 40.18], [-74.47, 40.03], [-74.25, 39.5], [-74.35, 39.25], [-74.25, 39.0], [-74.47, 38.47], [-74.82, 38.32], [-74.85, 38.25], [-74.75, 38.0], [-74.97, 37.47], [-75.32, 37.32], [-75.35, 37.25], [-75.25, 37.0], [-75.47, 36.47], [-76.0, 36.25], [-76.53, 36.47], [-76.68, 36.82], [-77.03, 36.97], [-77.18, 37.32], [-77.25, 37.35], [-77.5, 37.25], [-78.03, 37.47], [-78.18, 37.82], [-78.53, 37.97], [-78.75, 38.5], [-78.53, 39.03], [-78.18, 39.18], [-78.15, 39.25], [-78.18, 39.32], [-78.25, 39.35], [-78.5, 39.25], [-79.03, 39.47], [-79.25, 40.0], [-79.03, 40.53]]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2024-04-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-78.5, 39.25], [-79.02999999999997, 39.47], [-79.25, 40.0], [-79.02999999999997, 40.53], [-78.5, 40.75], [-78.25, 40.65], [-78.18, 40.68], [-78.04000000000002, 41.0], [-78.25, 41.5], [-78.02999999999997, 42.03], [-77.5, 42.25], [-77.25, 42.15], [-77.0, 42.25], [-76.75, 42.15], [-76.5, 42.25], [-75.97000000000003, 42.03], [-75.82, 41.68], [-75.75, 41.65], [-75.5, 41.75], [-75.25, 41.65], [-75.0, 41.75], [-74.47000000000003, 41.53], [-74.25, 41.0], [-74.47000000000003, 40.47], [-74.82, 40.32], [-74.85000000000002, 40.25], [-74.82, 40.18], [-74.47000000000003, 40.03], [-74.25, 39.5], [-74.35000000000002, 39.25], [-74.25, 39.0], [-74.47000000000003, 38.47], [-74.82, 38.32], [-74.85000000000002, 38.25], [-74.75, 38.0], [-74.97000000000003, 37.47], [-75.32, 37.32], [-75.35000000000002, 37.25], [-75.25, 37.0], 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"description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.453155030227793, 2.4382867182094996, 2.075384257179705, 2.1439787002293604, 1.352179336374665]}}