{"version_information": {"version": "det_AHW_v1.1", "compiled_date": "2026-03-19 18:14:53.339295", "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-Jun-29_to_2020-Jul-03_258.0_34.0"}, "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": 2020060003320}, "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": "June 29 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 03 2020"}, "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": 52205.17727784787}, "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": 34.0}, "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": 258.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "258.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 257.0}, "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": 30.5}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 34.0}, "polygons_merged": {"name": "Merged polygon", "description": "Merger or polygons at each time step", "value": {"type": "Polygon", "coordinates": [[[-103.75, 32.0], [-103.53, 32.53], [-103.177, 32.677], [-103.146, 32.75], [-103.177, 32.823], [-103.53, 32.97], [-103.75, 33.5], [-103.53, 34.03], [-103.0, 34.25], [-102.698, 34.125], [-102.53, 34.53], [-102.0, 34.75], [-101.47, 34.53], [-101.323, 34.177], [-100.97, 34.03], [-100.823, 33.677], [-100.47, 33.53], [-100.25, 33.0], [-100.47, 32.47], [-100.823, 32.323], [-100.854, 32.25], [-100.75, 32.0], [-100.97, 31.47], [-101.323, 31.323], [-101.47, 30.97], [-101.823, 30.823], [-101.97, 30.47], [-102.323, 30.323], [-102.47, 29.97], [-103.0, 29.75], [-103.53, 29.97], [-103.75, 30.5], [-103.646, 30.75], [-103.75, 31.0], [-103.543, 31.5], [-103.75, 32.0]]]}}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America", "N.Central-America"]}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-29T11:30:00.000000000": {"type": "Polygon", "coordinates": [[[-103.64644660940672, 30.75], [-103.75, 31.0], [-103.54289321881345, 31.5], [-103.75, 32.0], [-103.53033008588989, 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31.30017461287912, 31.47095723057498, 29.034448384317727, 29.295044566292574]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [32.67673795353511, 32.619109923314284, 32.60885166269907, 29.144624277815126, 29.295044566292574]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.0640878146541795, 3.9862598802235825, 4.198353254632698, 3.161900656154046, 3.361388801385033]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.477903719075982, 4.385557823676038, 4.684704810717278, 3.2606201055813813, 3.361388801385033]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.443432428583516, 1.4945971114362797, 1.6728833440431903, 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