{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:47.590536", "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-Jun-17_to_2012-Jun-19_257.5_41.0"}, "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": 2012060002730}, "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 17 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 19 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": 96517.3146516241}, "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", "W.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": 41.0}, "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": 257.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "257.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 254.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 260.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 39.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 44.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-06-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.25, 42.0], [-106.03, 42.53], [-105.5, 42.75], [-105.25, 42.65], [-105.0, 42.75], [-104.75, 42.65], [-104.5, 42.75], [-103.97, 42.53], [-103.82, 42.18], [-103.75, 42.15], [-103.68, 42.18], [-103.53, 42.53], [-103.18, 42.68], [-103.03, 43.03], [-102.5, 43.25], [-102.25, 43.15], [-102.18, 43.18], [-102.03, 43.53], [-101.68, 43.68], [-101.65, 43.75], [-101.75, 44.0], [-101.53, 44.53], [-101.0, 44.75], [-100.75, 44.65], [-100.5, 44.75], [-100.25, 44.65], [-100.0, 44.75], [-99.47, 44.53], [-99.25, 44.0], [-99.35, 43.75], [-99.25, 43.5], [-99.35, 43.25], [-99.25, 43.0], [-99.47, 42.47], [-99.82, 42.32], [-99.97, 41.97], [-100.37, 41.8], [-100.25, 41.5], [-100.47, 40.97], [-100.82, 40.82], [-100.97, 40.47], [-101.32, 40.32], [-101.47, 39.97], [-101.82, 39.82], [-101.97, 39.47], [-102.5, 39.25], [-103.03, 39.47], [-103.18, 39.82], [-103.25, 39.85], [-103.5, 39.75], [-104.03, 39.97], [-104.18, 40.32], [-104.53, 40.47], [-104.68, 40.82], [-104.75, 40.85], [-105.0, 40.75], [-105.53, 40.97], [-105.68, 41.32], [-106.03, 41.47], [-106.25, 42.0]]]]}, "2012-06-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.25, 42.0], [-106.03, 42.53], [-105.5, 42.75], [-105.25, 42.65], [-105.0, 42.75], [-104.75, 42.65], [-104.5, 42.75], [-103.97, 42.53], [-103.82, 42.18], [-103.75, 42.15], [-103.68, 42.18], [-103.53, 42.53], [-103.18, 42.68], [-103.03, 43.03], [-102.5, 43.25], [-102.25, 43.15], [-102.18, 43.18], [-102.03, 43.53], [-101.68, 43.68], [-101.65, 43.75], [-101.75, 44.0], [-101.53, 44.53], [-101.0, 44.75], [-100.75, 44.65], [-100.5, 44.75], [-100.25, 44.65], [-100.0, 44.75], [-99.47, 44.53], [-99.25, 44.0], [-99.35, 43.75], [-99.25, 43.5], [-99.35, 43.25], [-99.25, 43.0], [-99.47, 42.47], [-99.82, 42.32], [-99.97, 41.97], [-100.37, 41.8], [-100.25, 41.5], [-100.47, 40.97], [-100.82, 40.82], [-100.97, 40.47], [-101.32, 40.32], [-101.47, 39.97], [-101.82, 39.82], [-101.97, 39.47], [-102.5, 39.25], [-103.03, 39.47], [-103.18, 39.82], [-103.25, 39.85], [-103.5, 39.75], [-104.03, 39.97], [-104.18, 40.32], [-104.53, 40.47], [-104.68, 40.82], [-104.75, 40.85], [-105.0, 40.75], [-105.53, 40.97], [-105.68, 41.32], [-106.03, 41.47], [-106.25, 42.0]]]]}, "2012-06-19T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-106.25, 42.0], [-106.03, 42.53], [-105.5, 42.75], [-105.25, 42.65], [-105.0, 42.75], [-104.75, 42.65], [-104.5, 42.75], [-103.97, 42.53], [-103.82, 42.18], [-103.75, 42.15], [-103.68, 42.18], [-103.53, 42.53], [-103.18, 42.68], [-103.03, 43.03], [-102.5, 43.25], [-102.25, 43.15], [-102.18, 43.18], [-102.03, 43.53], [-101.68, 43.68], [-101.65, 43.75], [-101.75, 44.0], [-101.53, 44.53], [-101.0, 44.75], [-100.75, 44.65], [-100.5, 44.75], [-100.25, 44.65], [-100.0, 44.75], [-99.47, 44.53], [-99.25, 44.0], [-99.35, 43.75], [-99.25, 43.5], [-99.35, 43.25], [-99.25, 43.0], [-99.47, 42.47], [-99.82, 42.32], [-99.97, 41.97], [-100.37, 41.8], [-100.25, 41.5], [-100.47, 40.97], [-100.82, 40.82], [-100.97, 40.47], [-101.32, 40.32], [-101.47, 39.97], [-101.82, 39.82], [-101.97, 39.47], [-102.5, 39.25], [-103.03, 39.47], [-103.18, 39.82], [-103.25, 39.85], [-103.5, 39.75], [-104.03, 39.97], [-104.18, 40.32], [-104.53, 40.47], [-104.68, 40.82], [-104.75, 40.85], [-105.0, 40.75], [-105.53, 40.97], [-105.68, 41.32], [-106.03, 41.47], [-106.25, 42.0]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 9.666684342705082}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.0058223381538625}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [25.53478998486969, 28.091528975364668, 27.764642490135202]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [27.191065707615735, 31.369051292060192, 31.224353041147424]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.51963996856152, 7.9320375468475035, 7.56578949905257]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.7067178518971104, 9.666684342705082, 9.437766362562513]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.573165956826862, 2.268889766081228, 2.1577098109827286]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.9266377641220254, 2.7294341553839243, 2.757982787658569]}}