{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:52:54.192012", "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": "2024-Aug-01_to_2024-Aug-03_238.5_42.5"}, "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": 2024080001012}, "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 01 2024"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "August 03 2024"}, "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": 108226.45543614114}, "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": 42.5}, "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": 238.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "238.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 237.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 241.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 38.75}, "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": {"2024-08-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.65, 42.75], [-122.75, 43.0], [-122.65, 43.25], [-122.75, 43.5], [-122.53, 44.03], [-122.0, 44.25], [-121.75, 44.15], [-121.68, 44.18], [-121.53, 44.53], [-121.0, 44.75], [-120.47, 44.53], [-120.32, 44.18], [-120.25, 44.15], [-120.0, 44.25], [-119.75, 44.15], [-119.5, 44.25], [-118.97, 44.03], [-118.75, 43.5], [-118.85, 43.25], [-118.75, 43.0], [-118.85, 42.75], [-118.82, 42.68], [-118.47, 42.53], [-118.32, 42.18], [-117.97, 42.03], [-117.75, 41.5], [-117.85, 41.25], [-117.75, 41.0], [-117.85, 40.75], [-117.75, 40.5], [-117.97, 39.97], [-118.32, 39.82], [-118.46, 39.5], [-118.25, 39.0], [-118.47, 38.47], [-119.0, 38.25], [-119.25, 38.35], [-119.5, 38.25], [-120.03, 38.47], [-120.18, 38.82], [-120.53, 38.97], [-120.75, 39.5], [-120.62, 39.8], [-121.03, 39.97], [-121.25, 40.5], [-121.12, 40.8], [-121.25, 40.85], [-121.5, 40.75], [-122.03, 40.97], [-122.18, 41.32], [-122.53, 41.47], [-122.75, 42.0], [-122.65, 42.25], [-122.75, 42.5], [-122.65, 42.75]]]]}, "2024-08-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.65, 42.75], [-122.75, 43.0], [-122.65, 43.25], [-122.75, 43.5], [-122.53, 44.03], [-122.0, 44.25], [-121.75, 44.15], [-121.68, 44.18], [-121.53, 44.53], [-121.0, 44.75], [-120.47, 44.53], [-120.32, 44.18], [-120.25, 44.15], [-120.0, 44.25], [-119.75, 44.15], [-119.5, 44.25], [-118.97, 44.03], [-118.75, 43.5], [-118.85, 43.25], [-118.75, 43.0], [-118.85, 42.75], [-118.82, 42.68], [-118.47, 42.53], [-118.32, 42.18], [-117.97, 42.03], [-117.75, 41.5], [-117.85, 41.25], [-117.75, 41.0], [-117.85, 40.75], [-117.75, 40.5], [-117.97, 39.97], [-118.32, 39.82], [-118.46, 39.5], [-118.25, 39.0], [-118.47, 38.47], [-119.0, 38.25], [-119.25, 38.35], [-119.5, 38.25], [-120.03, 38.47], [-120.18, 38.82], [-120.53, 38.97], [-120.75, 39.5], [-120.62, 39.8], [-121.03, 39.97], [-121.25, 40.5], [-121.12, 40.8], [-121.25, 40.85], [-121.5, 40.75], [-122.03, 40.97], [-122.18, 41.32], [-122.53, 41.47], [-122.75, 42.0], [-122.65, 42.25], [-122.75, 42.5], [-122.65, 42.75]]]]}, "2024-08-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-122.65, 42.75], [-122.75, 43.0], [-122.65, 43.25], [-122.75, 43.5], [-122.53, 44.03], [-122.0, 44.25], [-121.75, 44.15], [-121.68, 44.18], [-121.53, 44.53], [-121.0, 44.75], [-120.47, 44.53], [-120.32, 44.18], [-120.25, 44.15], [-120.0, 44.25], [-119.75, 44.15], [-119.5, 44.25], [-118.97, 44.03], [-118.75, 43.5], [-118.85, 43.25], [-118.75, 43.0], [-118.85, 42.75], [-118.82, 42.68], [-118.47, 42.53], [-118.32, 42.18], [-117.97, 42.03], [-117.75, 41.5], [-117.85, 41.25], [-117.75, 41.0], [-117.85, 40.75], [-117.75, 40.5], [-117.97, 39.97], [-118.32, 39.82], [-118.46, 39.5], [-118.25, 39.0], [-118.47, 38.47], [-119.0, 38.25], [-119.25, 38.35], [-119.5, 38.25], [-120.03, 38.47], [-120.18, 38.82], [-120.53, 38.97], [-120.75, 39.5], [-120.62, 39.8], [-121.03, 39.97], [-121.25, 40.5], [-121.12, 40.8], [-121.25, 40.85], [-121.5, 40.75], [-122.03, 40.97], [-122.18, 41.32], [-122.53, 41.47], [-122.75, 42.0], [-122.65, 42.25], [-122.75, 42.5], [-122.65, 42.75]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.477011025180275}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.45744797806818}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [26.462535591345727, 27.229661977200863, 27.102720041081227]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [30.48079434587811, 30.52546966272007, 31.253207060751038]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.871964614952485, 4.736706612163161, 4.763672707088896]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.869824983077535, 6.477011025180275, 6.351267303889188]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.4102062528781896, 1.7093440036570628, 1.685731097814199]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.7209495737011944, 2.1293597526481194, 2.076815497694294]}}