{"version_information": {"version": "det_AHW_tail10.0_v1.2", "compiled_date": "2026-06-27 18:20:35.592684", "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": "2020-Jun-27_to_2020-Jun-30_257.0_36.5"}, "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": 2020060002966}, "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 27 2020"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "June 30 2020"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 4}, "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": 94013.17381324059}, "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": 36.5}, "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": 257.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "257.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 255.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 259.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 39.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2020-06-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-104.53, 36.53], [-104.18, 36.68], [-104.03, 37.03], [-103.5, 37.25], [-103.25, 37.15], [-103.18, 37.18], [-103.03, 37.53], [-102.5, 37.75], [-102.25, 37.65], [-102.18, 37.68], [-102.03, 38.03], [-101.5, 38.25], [-101.25, 38.15], [-101.0, 38.25], [-100.47, 38.03], [-100.25, 37.5], [-100.47, 36.97], [-100.82, 36.82], [-100.97, 36.47], [-101.32, 36.32], [-101.47, 35.97], [-101.82, 35.82], [-101.97, 35.47], [-102.32, 35.32], [-102.47, 34.97], [-103.0, 34.75], [-103.25, 34.85], [-103.5, 34.75], [-103.75, 34.85], [-104.0, 34.75], [-104.53, 34.97], [-104.75, 35.5], [-104.65, 35.75], [-104.75, 36.0], [-104.53, 36.53]]]]}, "2020-06-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-104.53, 36.53], [-104.18, 36.68], [-104.03, 37.03], [-103.68, 37.18], [-103.65, 37.25], [-103.75, 37.5], [-103.53, 38.03], [-103.12, 38.2], [-103.18, 38.32], [-103.53, 38.47], [-103.75, 39.0], [-103.53, 39.53], [-103.0, 39.75], [-102.75, 39.65], [-102.5, 39.75], [-102.25, 39.65], [-102.0, 39.75], [-101.47, 39.53], [-101.32, 39.18], [-101.25, 39.15], [-101.0, 39.25], [-100.47, 39.03], [-100.25, 38.5], [-100.35, 38.25], [-100.25, 38.0], [-100.35, 37.75], [-100.25, 37.5], [-100.35, 37.25], [-100.25, 37.0], [-100.47, 36.47], [-100.82, 36.32], [-100.97, 35.97], [-101.32, 35.82], [-101.35, 35.75], [-101.25, 35.5], [-101.35, 35.25], [-101.25, 35.0], [-101.47, 34.47], [-101.82, 34.32], [-101.97, 33.97], [-102.5, 33.75], [-103.03, 33.97], [-103.18, 34.32], [-103.53, 34.47], [-103.68, 34.82], [-103.75, 34.85], [-104.0, 34.75], [-104.53, 34.97], [-104.75, 35.5], [-104.65, 35.75], [-104.75, 36.0], [-104.53, 36.53]]]]}, "2020-06-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-104.53, 36.53], [-104.18, 36.68], [-104.03, 37.03], [-103.68, 37.18], [-103.65, 37.25], [-103.75, 37.5], [-103.53, 38.03], [-103.12, 38.2], [-103.18, 38.32], [-103.53, 38.47], [-103.75, 39.0], [-103.53, 39.53], [-103.0, 39.75], [-102.75, 39.65], [-102.5, 39.75], [-102.25, 39.65], [-102.0, 39.75], [-101.47, 39.53], [-101.32, 39.18], [-101.25, 39.15], [-101.0, 39.25], [-100.47, 39.03], [-100.25, 38.5], [-100.35, 38.25], [-100.25, 38.0], [-100.35, 37.75], [-100.25, 37.5], [-100.35, 37.25], [-100.25, 37.0], [-100.47, 36.47], [-100.82, 36.32], [-100.97, 35.97], [-101.32, 35.82], [-101.35, 35.75], [-101.25, 35.5], [-101.35, 35.25], [-101.25, 35.0], [-101.47, 34.47], [-101.82, 34.32], [-101.97, 33.97], [-102.5, 33.75], [-103.03, 33.97], [-103.18, 34.32], [-103.53, 34.47], [-103.68, 34.82], [-103.75, 34.85], [-104.0, 34.75], [-104.53, 34.97], [-104.75, 35.5], [-104.65, 35.75], [-104.75, 36.0], [-104.53, 36.53]]]]}, "2020-06-30T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-104.53, 36.53], [-104.18, 36.68], [-104.03, 37.03], [-103.68, 37.18], [-103.65, 37.25], [-103.75, 37.5], [-103.53, 38.03], [-103.12, 38.2], [-103.18, 38.32], [-103.53, 38.47], [-103.75, 39.0], [-103.53, 39.53], [-103.0, 39.75], [-102.75, 39.65], [-102.5, 39.75], [-102.25, 39.65], [-102.0, 39.75], [-101.47, 39.53], [-101.32, 39.18], [-101.25, 39.15], [-101.0, 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30.365444436876487, 29.99446027535106]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [29.793318654316067, 30.77912924411754, 32.11240295731011, 32.10723741958725]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [3.845112136769906, 4.366990061958684, 5.324283939113127, 4.8480528734552]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.184753768395069, 5.446052195277446, 6.635888844606086, 6.312218976406882]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3249664192935198, 1.44653057632092, 1.7674688701063241, 1.6052808693935474]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.5301779595035239, 1.832583232887905, 2.087001741439745, 1.9526698019322957]}}