{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:12.615822", "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": "2012-Aug-02_to_2012-Aug-04_272.5_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": 2012080001656}, "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": "August 02 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 04 2012"}, "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": 89013.94913415566}, "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", "E.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": 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": 272.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "272.5\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": 273.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 40.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.62, 42.7], [-92.75, 43.0], [-92.53, 43.53], [-92.0, 43.75], [-91.47, 43.53], [-91.32, 43.18], [-91.25, 43.15], [-91.0, 43.25], [-90.75, 43.15], [-90.5, 43.25], [-90.25, 43.15], [-90.0, 43.25], [-89.5, 43.04], [-89.0, 43.25], [-88.75, 43.15], [-88.5, 43.25], [-88.25, 43.15], [-88.18, 43.18], [-88.15, 43.25], [-88.25, 43.5], [-88.04, 44.0], [-88.25, 44.5], [-88.03, 45.03], [-87.5, 45.25], [-87.25, 45.15], [-87.0, 45.25], [-86.75, 45.15], [-86.5, 45.25], [-85.97, 45.03], [-85.75, 44.5], [-85.96, 44.0], [-85.75, 43.5], [-85.85, 43.25], [-85.75, 43.0], [-85.97, 42.47], [-86.32, 42.32], [-86.35, 42.25], [-86.25, 42.0], [-86.47, 41.47], [-87.0, 41.25], [-87.53, 41.47], [-87.68, 41.82], [-87.75, 41.85], [-88.0, 41.75], [-88.25, 41.85], [-88.5, 41.75], [-88.75, 41.85], [-88.82, 41.82], [-88.85, 41.75], [-88.75, 41.5], [-88.85, 41.25], [-88.75, 41.0], [-88.97, 40.47], [-89.5, 40.25], [-89.75, 40.35], [-90.0, 40.25], [-90.53, 40.47], [-90.68, 40.82], [-90.75, 40.85], [-91.0, 40.75], [-91.25, 40.85], [-91.32, 40.82], [-91.47, 40.47], [-92.0, 40.25], [-92.53, 40.47], [-92.68, 40.82], [-92.75, 40.85], [-93.0, 40.75], [-93.53, 40.97], [-93.75, 41.5], [-93.53, 42.03], [-93.18, 42.18], [-93.03, 42.53], [-92.62, 42.7]]]]}, "2012-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.62, 42.7], [-92.75, 43.0], [-92.53, 43.53], [-92.0, 43.75], [-91.47, 43.53], [-91.32, 43.18], [-91.25, 43.15], [-91.0, 43.25], [-90.75, 43.15], [-90.5, 43.25], [-90.25, 43.15], [-90.0, 43.25], [-89.5, 43.04], [-89.0, 43.25], [-88.75, 43.15], [-88.5, 43.25], [-88.25, 43.15], [-88.18, 43.18], [-88.15, 43.25], [-88.25, 43.5], [-88.04, 44.0], [-88.25, 44.5], [-88.03, 45.03], [-87.5, 45.25], [-87.25, 45.15], [-87.0, 45.25], [-86.75, 45.15], [-86.5, 45.25], [-85.97, 45.03], [-85.75, 44.5], [-85.96, 44.0], [-85.75, 43.5], [-85.85, 43.25], [-85.75, 43.0], [-85.97, 42.47], [-86.32, 42.32], [-86.35, 42.25], [-86.25, 42.0], [-86.47, 41.47], [-87.0, 41.25], [-87.53, 41.47], [-87.68, 41.82], [-87.75, 41.85], [-88.0, 41.75], [-88.25, 41.85], [-88.5, 41.75], [-88.75, 41.85], [-88.82, 41.82], [-88.85, 41.75], [-88.75, 41.5], [-88.85, 41.25], [-88.75, 41.0], [-88.97, 40.47], [-89.5, 40.25], [-89.75, 40.35], [-90.0, 40.25], [-90.53, 40.47], [-90.68, 40.82], [-90.75, 40.85], [-91.0, 40.75], [-91.25, 40.85], [-91.32, 40.82], [-91.47, 40.47], [-92.0, 40.25], [-92.53, 40.47], [-92.68, 40.82], [-92.75, 40.85], [-93.0, 40.75], [-93.53, 40.97], [-93.75, 41.5], [-93.53, 42.03], [-93.18, 42.18], [-93.03, 42.53], [-92.62, 42.7]]]]}, "2012-08-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-92.62, 42.7], [-92.75, 43.0], [-92.53, 43.53], [-92.0, 43.75], [-91.47, 43.53], [-91.32, 43.18], [-91.25, 43.15], [-91.0, 43.25], [-90.75, 43.15], [-90.5, 43.25], [-90.25, 43.15], [-90.0, 43.25], [-89.5, 43.04], [-89.0, 43.25], [-88.75, 43.15], [-88.5, 43.25], [-88.25, 43.15], [-88.18, 43.18], [-88.15, 43.25], [-88.25, 43.5], [-88.04, 44.0], [-88.25, 44.5], [-88.03, 45.03], [-87.5, 45.25], [-87.25, 45.15], [-87.0, 45.25], [-86.75, 45.15], [-86.5, 45.25], [-85.97, 45.03], [-85.75, 44.5], [-85.96, 44.0], [-85.75, 43.5], [-85.85, 43.25], [-85.75, 43.0], [-85.97, 42.47], [-86.32, 42.32], [-86.35, 42.25], [-86.25, 42.0], [-86.47, 41.47], [-87.0, 41.25], [-87.53, 41.47], [-87.68, 41.82], [-87.75, 41.85], [-88.0, 41.75], [-88.25, 41.85], [-88.5, 41.75], [-88.75, 41.85], [-88.82, 41.82], [-88.85, 41.75], [-88.75, 41.5], [-88.85, 41.25], [-88.75, 41.0], [-88.97, 40.47], [-89.5, 40.25], [-89.75, 40.35], [-90.0, 40.25], [-90.53, 40.47], [-90.68, 40.82], [-90.75, 40.85], [-91.0, 40.75], [-91.25, 40.85], [-91.32, 40.82], [-91.47, 40.47], [-92.0, 40.25], [-92.53, 40.47], [-92.68, 40.82], [-92.75, 40.85], [-93.0, 40.75], [-93.53, 40.97], [-93.75, 41.5], [-93.53, 42.03], [-93.18, 42.18], [-93.03, 42.53], [-92.62, 42.7]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.131990009389597}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.403985279357921}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.95973018476377, 27.147669169933863, 27.11037184583745]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [28.211326309507342, 28.212410770327153, 28.867591945683614]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.1931581512549565, 4.49107981208138, 4.527717874737425]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.003008554187318, 5.459008788646997, 6.131990009389597]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.5620942495544705, 1.7155210107598902, 1.7930496616730784]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.8421805950817896, 2.117369144163456, 2.7290814823183234]}}