{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:19.313623", "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": "2016-Apr-24_to_2016-Apr-26_268.0_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": 2016040002096}, "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 24 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 26 2016"}, "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": 50237.23196384099}, "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": 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": 268.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "268.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 266.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 269.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 37.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 40.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-04-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.65, 38.75], [-93.75, 39.0], [-93.65, 39.25], [-93.75, 39.5], [-93.53, 40.03], [-93.18, 40.18], [-93.03, 40.53], [-92.68, 40.68], [-92.53, 41.03], [-92.0, 41.25], [-91.75, 41.15], [-91.5, 41.25], [-91.25, 41.15], [-91.0, 41.25], [-90.47, 41.03], [-90.25, 40.5], [-90.35, 40.25], [-90.25, 40.0], [-90.47, 39.47], [-90.82, 39.32], [-90.85, 39.25], [-90.75, 39.0], [-90.97, 38.47], [-91.32, 38.32], [-91.35, 38.25], [-91.25, 38.0], [-91.47, 37.47], [-92.0, 37.25], [-92.25, 37.35], [-92.5, 37.25], [-92.75, 37.35], [-93.0, 37.25], [-93.53, 37.47], [-93.75, 38.0], [-93.65, 38.25], [-93.75, 38.5], [-93.65, 38.75]]]]}, "2016-04-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.65, 38.75], [-93.75, 39.0], [-93.65, 39.25], [-93.75, 39.5], [-93.53, 40.03], [-93.18, 40.18], [-93.03, 40.53], [-92.68, 40.68], [-92.53, 41.03], [-92.0, 41.25], [-91.75, 41.15], [-91.5, 41.25], [-91.25, 41.15], [-91.0, 41.25], [-90.47, 41.03], [-90.25, 40.5], [-90.35, 40.25], [-90.25, 40.0], [-90.47, 39.47], [-90.82, 39.32], [-90.85, 39.25], [-90.75, 39.0], [-90.97, 38.47], [-91.32, 38.32], [-91.35, 38.25], [-91.25, 38.0], [-91.47, 37.47], [-92.0, 37.25], [-92.25, 37.35], [-92.5, 37.25], [-92.75, 37.35], [-93.0, 37.25], [-93.53, 37.47], [-93.75, 38.0], [-93.65, 38.25], [-93.75, 38.5], [-93.65, 38.75]]]]}, "2016-04-26T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-93.65, 38.75], [-93.75, 39.0], [-93.65, 39.25], [-93.75, 39.5], [-93.53, 40.03], [-93.18, 40.18], [-93.03, 40.53], [-92.68, 40.68], [-92.53, 41.03], [-92.0, 41.25], [-91.75, 41.15], [-91.5, 41.25], [-91.25, 41.15], [-91.0, 41.25], [-90.47, 41.03], [-90.25, 40.5], [-90.35, 40.25], [-90.25, 40.0], [-90.47, 39.47], [-90.82, 39.32], [-90.85, 39.25], [-90.75, 39.0], [-90.97, 38.47], [-91.32, 38.32], [-91.35, 38.25], [-91.25, 38.0], [-91.47, 37.47], [-92.0, 37.25], [-92.25, 37.35], [-92.5, 37.25], [-92.75, 37.35], [-93.0, 37.25], [-93.53, 37.47], [-93.75, 38.0], [-93.65, 38.25], [-93.75, 38.5], [-93.65, 38.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.512840967012664}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.956210763045934}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [20.29734795651109, 22.135084996162504, 20.606359676124214]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [21.37008400310509, 22.784176415295804, 21.802193402201908]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [6.378257367813381, 8.108200589564103, 6.38217433176032]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.220395393033186, 9.512840967012664, 7.255211358266649]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6989130292409542, 2.1955269002800675, 1.6327058641380912]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.914654048298595, 2.5976507689724406, 1.870534182650412]}}