{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:12:51.431244", "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-Apr-06_to_2020-Apr-08_256.0_38.0"}, "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": 2020040001453}, "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 06 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 08 2020"}, "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": 84470.77481736345}, "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": 38.0}, "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": 256.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "256.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 255.5}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 259.0}, "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": 41.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-105.146, 38.75], [-105.25, 39.0], [-105.03, 39.53], [-104.5, 39.75], [-104.25, 39.646], [-104.125, 39.698], [-104.177, 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"description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-04-06T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-105.14644660940672, 38.25], [-105.25, 38.5], [-105.14644660940672, 38.75], [-105.25, 39.0], [-105.03033008588991, 39.53033008588991], [-104.5, 39.75], [-104.25, 39.64644660940672], [-104.125, 39.69822330470336], [-104.17677669529664, 39.82322330470336], [-104.53033008588991, 39.96966991411009], [-104.75, 40.5], [-104.53033008588991, 41.03033008588991], [-104.17677669529664, 41.17677669529664], [-104.03033008588991, 41.53033008588991], [-103.5, 41.75], [-102.96966991411011, 41.53033008588991], [-102.82322330470339, 41.17677669529664], [-102.46966991411011, 41.03033008588991], [-102.25, 40.5], [-102.35355339059328, 40.25], [-102.25, 40.0], [-102.35355339059328, 39.75], [-102.32322330470339, 39.67677669529664], [-102.25, 39.64644660940672], [-102.0, 39.75], [-101.75, 39.64644660940672], [-101.5, 39.75], 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{"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.193109465435668, 8.384464118021185, 8.491285891944926]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3728279006442934, 1.4024214470290568, 1.3179357516226013]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.55389063108575, 1.585184689920047, 1.4729281528121967]}}