{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:51:43.145335", "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-Oct-20_to_2012-Oct-24_250.5_37.0"}, "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": 2012100002460}, "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 20 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "October 24 2012"}, "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": 76409.03501993482}, "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": ["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": 37.0}, "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": 250.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "250.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 249.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 253.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 36.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 41.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-10-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-107.5, 42.25], [-106.97, 42.03], [-106.75, 41.5], [-106.97, 40.97], [-107.5, 40.75], [-108.03, 40.97], [-108.25, 41.5], [-108.03, 42.03], [-107.5, 42.25]]]]}, "2012-10-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.04, 39.0], [-111.25, 39.5], [-111.03, 40.03], [-110.68, 40.18], [-110.53, 40.53], [-110.18, 40.68], [-110.03, 41.03], [-109.5, 41.25], [-109.25, 41.15], [-109.18, 41.18], [-109.03, 41.53], [-108.5, 41.75], [-108.25, 41.65], [-108.18, 41.68], [-108.03, 42.03], [-107.5, 42.25], [-106.97, 42.03], [-106.82, 41.68], [-106.47, 41.53], [-106.25, 41.0], [-106.47, 40.47], [-106.82, 40.32], [-106.85, 40.25], [-106.75, 40.0], [-106.97, 39.47], [-107.5, 39.25], [-107.75, 39.35], [-108.0, 39.25], [-108.25, 39.35], [-108.5, 39.25], [-108.75, 39.35], [-108.82, 39.32], [-108.85, 39.25], [-108.75, 39.0], [-108.85, 38.75], [-108.75, 38.5], [-108.97, 37.97], [-109.32, 37.82], [-109.37, 37.7], [-108.97, 37.53], [-108.75, 37.0], [-108.97, 36.47], [-109.5, 36.25], [-109.75, 36.35], [-110.0, 36.25], [-110.53, 36.47], [-110.68, 36.82], [-111.03, 36.97], [-111.25, 37.5], [-111.04, 38.0], [-111.25, 38.5], [-111.04, 39.0]]]]}, "2012-10-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.04, 39.0], [-111.25, 39.5], [-111.03, 40.03], [-110.68, 40.18], [-110.53, 40.53], [-110.18, 40.68], [-110.03, 41.03], [-109.5, 41.25], [-109.25, 41.15], [-109.18, 41.18], [-109.03, 41.53], [-108.5, 41.75], [-108.25, 41.65], [-108.18, 41.68], [-108.03, 42.03], [-107.5, 42.25], [-106.97, 42.03], [-106.82, 41.68], [-106.47, 41.53], [-106.25, 41.0], [-106.47, 40.47], [-106.82, 40.32], [-106.85, 40.25], [-106.75, 40.0], [-106.97, 39.47], [-107.37, 39.3], [-107.25, 39.0], [-107.47, 38.47], [-107.82, 38.32], [-107.85, 38.25], [-107.75, 38.0], [-107.97, 37.47], [-108.32, 37.32], [-108.47, 36.97], [-108.82, 36.82], [-108.97, 36.47], [-109.5, 36.25], [-109.75, 36.35], [-110.0, 36.25], [-110.53, 36.47], [-110.68, 36.82], [-111.03, 36.97], [-111.25, 37.5], [-111.04, 38.0], [-111.25, 38.5], [-111.04, 39.0]], [[-108.75, 39.35], [-108.82, 39.32], [-108.85, 39.25], [-108.8, 39.13], [-108.68, 39.18], [-108.62, 39.3], [-108.75, 39.35]]]]}, "2012-10-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-111.04, 39.0], [-111.25, 39.5], [-111.03, 40.03], [-110.68, 40.18], [-110.53, 40.53], [-110.18, 40.68], [-110.03, 41.03], [-109.5, 41.25], [-109.25, 41.15], [-109.18, 41.18], [-109.03, 41.53], [-108.5, 41.75], [-108.25, 41.65], [-108.0, 41.75], [-107.75, 41.65], [-107.5, 41.75], [-107.25, 41.65], [-107.0, 41.75], [-106.47, 41.53], [-106.25, 41.0], [-106.47, 40.47], [-106.82, 40.32], [-106.85, 40.25], [-106.75, 40.0], [-106.97, 39.47], [-107.37, 39.3], [-107.25, 39.0], [-107.47, 38.47], [-107.82, 38.32], [-107.85, 38.25], [-107.75, 38.0], [-107.97, 37.47], [-108.32, 37.32], [-108.47, 36.97], [-108.82, 36.82], [-108.97, 36.47], [-109.5, 36.25], [-109.75, 36.35], [-110.0, 36.25], [-110.53, 36.47], [-110.68, 36.82], [-111.03, 36.97], [-111.25, 37.5], [-111.04, 38.0], [-111.25, 38.5], [-111.04, 39.0]], [[-108.75, 39.35], [-108.82, 39.32], [-108.85, 39.25], [-108.8, 39.13], [-108.68, 39.18], [-108.62, 39.3], [-108.75, 39.35]]]]}, "2012-10-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-110.53, 36.47], [-110.75, 37.0], [-110.53, 37.53], [-110.0, 37.75], [-109.75, 37.65], [-109.68, 37.68], [-109.65, 37.75], [-109.75, 38.0], [-109.62, 38.3], [-110.03, 38.47], [-110.25, 39.0], [-110.03, 39.53], [-109.5, 39.75], [-108.97, 39.53], [-108.8, 39.13], [-108.68, 39.18], [-108.53, 39.53], [-108.0, 39.75], [-107.47, 39.53], [-107.25, 39.0], [-107.47, 38.47], [-107.82, 38.32], [-107.85, 38.25], [-107.75, 38.0], [-107.97, 37.47], [-108.32, 37.32], [-108.47, 36.97], [-108.82, 36.82], [-108.97, 36.47], [-109.5, 36.25], [-109.75, 36.35], [-110.0, 36.25], [-110.53, 36.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.8710796504255995}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.687625679477463}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [11.355778091032732, 13.875901699844007, 13.814268528543607, 13.984795589076782, 13.403466221524184]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [11.355778091032732, 18.28615654169863, 18.878968879994943, 18.47762886817958, 16.487499231561628]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.497732811931144, 5.289930514498847, 5.630562816860149, 6.27839674591966, 4.992597037729354]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.497732811931144, 6.614862350884209, 7.082632806113168, 7.8710796504255995, 5.66450088133854]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2895914611992991, 1.4547876971614029, 1.5489815251611165, 1.6321650150548959, 1.3836643919424416]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2895914611992991, 1.7154413784655507, 2.0716552416359146, 1.9906002102446636, 1.584085500132211]}}