{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:44:48.580835", "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": "2010-May-27_to_2010-May-29_259.5_44.0"}, "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": 2010050002580}, "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": "May 27 2010"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 29 2010"}, "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": 73313.60790915963}, "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": 44.0}, "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": 259.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "259.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 256.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 260.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 42.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 45.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2010-05-27T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.0, 44.25], [-102.75, 44.15], [-102.68, 44.18], [-102.65, 44.25], [-102.75, 44.5], [-102.65, 44.75], [-102.75, 45.0], [-102.65, 45.25], [-102.75, 45.5], [-102.53, 46.03], [-102.0, 46.25], [-101.75, 46.15], [-101.5, 46.25], [-101.0, 46.04], [-100.5, 46.25], [-99.97, 46.03], [-99.82, 45.68], [-99.47, 45.53], [-99.32, 45.18], [-98.97, 45.03], [-98.75, 44.5], [-98.85, 44.25], [-98.75, 44.0], [-98.85, 43.75], [-98.75, 43.5], [-98.97, 42.97], [-99.32, 42.82], [-99.47, 42.47], [-100.0, 42.25], [-100.53, 42.47], [-100.68, 42.82], [-100.75, 42.85], [-100.82, 42.82], [-100.97, 42.47], [-101.5, 42.25], [-101.75, 42.35], [-102.0, 42.25], [-102.25, 42.35], [-102.5, 42.25], [-102.75, 42.35], [-103.0, 42.25], [-103.25, 42.35], [-103.5, 42.25], [-104.03, 42.47], [-104.25, 43.0], [-104.03, 43.53], [-103.68, 43.68], [-103.53, 44.03], [-103.0, 44.25]]]]}, "2010-05-28T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.0, 44.25], [-102.75, 44.15], [-102.68, 44.18], [-102.65, 44.25], [-102.75, 44.5], [-102.65, 44.75], [-102.75, 45.0], [-102.65, 45.25], [-102.75, 45.5], [-102.53, 46.03], [-102.0, 46.25], [-101.75, 46.15], [-101.5, 46.25], [-101.0, 46.04], [-100.5, 46.25], [-99.97, 46.03], [-99.82, 45.68], [-99.47, 45.53], [-99.32, 45.18], [-98.97, 45.03], [-98.75, 44.5], [-98.85, 44.25], [-98.75, 44.0], [-98.85, 43.75], [-98.75, 43.5], [-98.97, 42.97], [-99.32, 42.82], [-99.47, 42.47], [-100.0, 42.25], [-100.53, 42.47], [-100.68, 42.82], [-100.75, 42.85], [-100.82, 42.82], [-100.97, 42.47], [-101.5, 42.25], [-101.75, 42.35], [-102.0, 42.25], [-102.25, 42.35], [-102.5, 42.25], [-102.75, 42.35], [-103.0, 42.25], [-103.25, 42.35], [-103.5, 42.25], [-104.03, 42.47], [-104.25, 43.0], [-104.03, 43.53], [-103.68, 43.68], [-103.53, 44.03], [-103.0, 44.25]]]]}, "2010-05-29T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-103.0, 44.25], [-102.75, 44.15], [-102.68, 44.18], [-102.65, 44.25], [-102.75, 44.5], [-102.65, 44.75], [-102.75, 45.0], [-102.65, 45.25], [-102.75, 45.5], [-102.53, 46.03], [-102.0, 46.25], [-101.75, 46.15], [-101.5, 46.25], [-101.0, 46.04], [-100.5, 46.25], [-99.97, 46.03], [-99.82, 45.68], [-99.47, 45.53], [-99.32, 45.18], [-98.97, 45.03], [-98.75, 44.5], [-98.85, 44.25], [-98.75, 44.0], [-98.85, 43.75], [-98.75, 43.5], [-98.97, 42.97], [-99.32, 42.82], [-99.47, 42.47], [-100.0, 42.25], [-100.53, 42.47], [-100.68, 42.82], [-100.75, 42.85], [-100.82, 42.82], [-100.97, 42.47], [-101.5, 42.25], [-101.75, 42.35], [-102.0, 42.25], [-102.25, 42.35], [-102.5, 42.25], [-102.75, 42.35], [-103.0, 42.25], [-103.25, 42.35], [-103.5, 42.25], [-104.03, 42.47], [-104.25, 43.0], [-104.03, 43.53], [-103.68, 43.68], [-103.53, 44.03], [-103.0, 44.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.113252178478547}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 7.582649075511755}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.57480835519243, 25.234477642278193, 24.51990841839023]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [22.49669569577037, 26.310654038125392, 27.367615450178732]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.5820859961040075, 9.073776405090927, 8.092084825340327]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.963248524270966, 9.693544081840855, 10.113252178478547]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3837383743582758, 2.3248767743109187, 2.072769655710979]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4723982990328222, 2.470434889376447, 2.6105035760360242]}}