{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:04:07.150126", "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": "2015-Oct-31_to_2015-Nov-03_259.5_46.0"}, "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": 2015100002645}, "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": "October 31 2015"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "November 03 2015"}, "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": 52481.17324389183}, "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"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["C.North-America"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["North 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": 46.0}, "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": 259.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "259.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 257.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 261.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 45.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 48.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2015-10-31T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.03, 47.47], [-103.25, 48.0], [-103.03, 48.53], [-102.5, 48.75], [-102.25, 48.65], [-102.0, 48.75], [-101.75, 48.65], [-101.5, 48.75], [-101.25, 48.65], [-101.0, 48.75], [-100.75, 48.65], [-100.5, 48.75], [-100.25, 48.65], [-100.0, 48.75], [-99.75, 48.65], [-99.5, 48.75], [-99.25, 48.65], [-99.0, 48.75], [-98.47, 48.53], [-98.25, 48.0], [-98.35, 47.75], [-98.25, 47.5], [-98.47, 46.97], [-98.82, 46.82], [-98.97, 46.47], [-99.32, 46.32], [-99.47, 45.97], [-99.82, 45.82], [-99.97, 45.47], [-100.5, 45.25], [-100.75, 45.35], [-101.0, 45.25], [-101.25, 45.35], [-101.5, 45.25], [-101.75, 45.35], [-102.0, 45.25], [-102.53, 45.47], [-102.75, 46.0], [-102.53, 46.53], [-102.12, 46.7], [-102.25, 47.0], [-102.15, 47.25], [-102.18, 47.32], [-102.25, 47.35], [-102.5, 47.25], [-103.03, 47.47]]]]}, "2015-11-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.03, 47.47], [-103.25, 48.0], [-103.03, 48.53], [-102.5, 48.75], [-102.25, 48.65], [-102.0, 48.75], [-101.75, 48.65], [-101.5, 48.75], [-101.25, 48.65], [-101.0, 48.75], [-100.75, 48.65], [-100.5, 48.75], [-100.25, 48.65], [-100.0, 48.75], [-99.75, 48.65], [-99.5, 48.75], [-99.25, 48.65], [-99.0, 48.75], [-98.47, 48.53], [-98.25, 48.0], [-98.35, 47.75], [-98.25, 47.5], [-98.47, 46.97], [-98.82, 46.82], [-98.97, 46.47], [-99.32, 46.32], [-99.47, 45.97], [-99.82, 45.82], [-99.97, 45.47], [-100.5, 45.25], [-100.75, 45.35], [-101.0, 45.25], [-101.25, 45.35], [-101.5, 45.25], [-101.75, 45.35], [-102.0, 45.25], [-102.53, 45.47], [-102.75, 46.0], [-102.53, 46.53], [-102.12, 46.7], [-102.25, 47.0], [-102.15, 47.25], [-102.18, 47.32], [-102.25, 47.35], [-102.5, 47.25], [-103.03, 47.47]]]]}, "2015-11-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.03, 47.47], [-103.25, 48.0], [-103.03, 48.53], [-102.5, 48.75], [-102.25, 48.65], [-102.0, 48.75], [-101.75, 48.65], [-101.5, 48.75], [-101.25, 48.65], [-101.0, 48.75], [-100.75, 48.65], [-100.5, 48.75], [-100.25, 48.65], [-100.0, 48.75], [-99.75, 48.65], [-99.5, 48.75], [-99.25, 48.65], [-99.0, 48.75], [-98.47, 48.53], [-98.25, 48.0], [-98.35, 47.75], [-98.25, 47.5], [-98.47, 46.97], [-98.82, 46.82], [-98.97, 46.47], [-99.32, 46.32], [-99.47, 45.97], [-99.82, 45.82], [-99.97, 45.47], [-100.5, 45.25], [-100.75, 45.35], [-101.0, 45.25], [-101.25, 45.35], [-101.5, 45.25], [-101.75, 45.35], [-102.0, 45.25], [-102.53, 45.47], [-102.75, 46.0], [-102.53, 46.53], [-102.12, 46.7], [-102.25, 47.0], [-102.15, 47.25], [-102.18, 47.32], [-102.25, 47.35], [-102.5, 47.25], [-103.03, 47.47]]]]}, "2015-11-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-100.5, 46.75], [-99.97, 46.53], [-99.75, 46.0], [-99.97, 45.47], [-100.5, 45.25], [-101.03, 45.47], [-101.25, 46.0], [-101.03, 46.53], [-100.5, 46.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.474336413546155}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.431596353124877}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [8.312998200624804, 8.380009136143201, 8.220244464022983, 9.633520656737858]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [9.608842739987551, 9.659865832352523, 9.904970055481556, 9.633520656737858]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.19406816502315, 6.483225282228688, 6.59799768193081, 6.919044607924434]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.764846427141322, 7.120467043520591, 7.474336413546155, 6.919044607924434]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1707671146297243, 1.1855636550630775, 1.1992648316958865, 1.279360231395542]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2377982829462113, 1.284696322899452, 1.3628201422678259, 1.279360231395542]}}