{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:11:16.272434", "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": "2020-Jan-24_to_2020-Jan-27_249.5_43.5"}, "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": 2020010002400}, "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 24 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "January 27 2020"}, "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": 64736.86085472564}, "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": []}, "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": 43.5}, "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": 249.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "249.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 248.0}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 251.0}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 42.0}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 45.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-112.0, 45.25], [-111.75, 45.146], [-111.677, 45.177], [-111.53, 45.53], [-111.0, 45.75], [-110.75, 45.646], [-110.5, 45.75], [-110.25, 45.646], [-110.0, 45.75], [-109.5, 45.543], [-109.0, 45.75], [-108.47, 45.53], [-108.25, 45.0], [-108.47, 44.47], [-108.823, 44.323], [-108.844, 44.274], [-108.854, 44.25], [-108.75, 44.0], [-108.854, 43.75], [-108.75, 43.5], [-108.97, 42.97], [-109.323, 42.823], [-109.344, 42.774], [-109.354, 42.75], [-109.323, 42.677], [-108.97, 42.53], [-108.75, 42.0], [-108.97, 41.47], [-109.5, 41.25], [-110.03, 41.47], [-110.177, 41.823], [-110.5, 41.957], [-111.0, 41.75], [-111.25, 41.854], [-111.5, 41.75], [-111.75, 41.854], [-112.0, 41.75], [-112.53, 41.97], [-112.75, 42.5], [-112.53, 43.03], [-112.177, 43.177], [-112.125, 43.302], [-112.53, 43.47], [-112.75, 44.0], [-112.646, 44.25], [-112.75, 44.5], [-112.53, 45.03], [-112.0, 45.25]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["W.North-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", 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