{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:07:30.920792", "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": "2017-Mar-06_to_2017-Mar-08_277.5_45.0"}, "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": 2017030001314}, "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": "March 06 2017"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "March 08 2017"}, "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": 54618.72916242263}, "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": ["E.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": 45.0}, "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": 277.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "277.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 275.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 279.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 43.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 46.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2017-03-06T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.03, 45.47], [-85.25, 46.0], [-85.03, 46.53], [-84.5, 46.75], [-84.25, 46.65], [-84.0, 46.75], [-83.75, 46.65], [-83.5, 46.75], [-83.25, 46.65], [-83.0, 46.75], [-82.75, 46.65], [-82.5, 46.75], [-82.25, 46.65], [-82.0, 46.75], [-81.47, 46.53], [-81.32, 46.18], [-80.97, 46.03], [-80.82, 45.68], [-80.47, 45.53], [-80.25, 45.0], [-80.47, 44.47], [-80.82, 44.32], [-80.97, 43.97], [-81.32, 43.82], [-81.35, 43.75], [-81.25, 43.5], [-81.47, 42.97], [-82.0, 42.75], [-82.25, 42.85], [-82.5, 42.75], [-83.03, 42.97], [-83.2, 43.38], [-83.5, 43.25], [-84.03, 43.47], [-84.25, 44.0], [-84.03, 44.53], [-83.68, 44.68], [-83.65, 44.75], [-83.68, 44.82], [-84.03, 44.97], [-84.18, 45.32], [-84.25, 45.35], [-84.5, 45.25], [-85.03, 45.47]]]]}, "2017-03-07T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.03, 45.47], [-85.25, 46.0], [-85.03, 46.53], [-84.5, 46.75], [-84.25, 46.65], [-84.0, 46.75], [-83.75, 46.65], [-83.5, 46.75], [-83.25, 46.65], [-83.0, 46.75], [-82.75, 46.65], [-82.5, 46.75], [-82.25, 46.65], [-82.0, 46.75], [-81.47, 46.53], [-81.32, 46.18], [-80.97, 46.03], [-80.82, 45.68], [-80.47, 45.53], [-80.25, 45.0], [-80.47, 44.47], [-80.82, 44.32], [-80.97, 43.97], [-81.32, 43.82], [-81.35, 43.75], [-81.25, 43.5], [-81.47, 42.97], [-82.0, 42.75], [-82.25, 42.85], [-82.5, 42.75], [-83.03, 42.97], [-83.2, 43.38], [-83.5, 43.25], [-84.03, 43.47], [-84.25, 44.0], [-84.03, 44.53], [-83.68, 44.68], [-83.65, 44.75], [-83.68, 44.82], [-84.03, 44.97], [-84.18, 45.32], [-84.25, 45.35], [-84.5, 45.25], [-85.03, 45.47]]]]}, "2017-03-08T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-85.03, 45.47], [-85.25, 46.0], [-85.03, 46.53], [-84.5, 46.75], [-84.25, 46.65], [-84.0, 46.75], [-83.75, 46.65], [-83.5, 46.75], [-83.25, 46.65], [-83.0, 46.75], [-82.75, 46.65], [-82.5, 46.75], [-82.25, 46.65], [-82.0, 46.75], [-81.47, 46.53], [-81.32, 46.18], [-80.97, 46.03], [-80.82, 45.68], [-80.47, 45.53], [-80.25, 45.0], [-80.47, 44.47], [-80.82, 44.32], [-80.97, 43.97], [-81.32, 43.82], [-81.35, 43.75], [-81.25, 43.5], [-81.47, 42.97], [-82.0, 42.75], [-82.25, 42.85], [-82.5, 42.75], [-83.03, 42.97], [-83.2, 43.38], [-83.5, 43.25], [-84.03, 43.47], [-84.25, 44.0], [-84.03, 44.53], [-83.68, 44.68], [-83.65, 44.75], [-83.68, 44.82], [-84.03, 44.97], [-84.18, 45.32], [-84.25, 45.35], [-84.5, 45.25], [-85.03, 45.47]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 11.412940593841483}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.428688423715379}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [2.1763481842526176, 5.650166380696874, 2.8576602221655776]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [3.280322360816342, 7.508965856467739, 4.28857254733947]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [7.403476908181158, 10.476392875355568, 7.4061954876094065]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [8.539049099830152, 11.412940593841483, 7.823690672275575]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.498904244154822, 2.109525989636659, 1.4761911321571848]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.6415095194847884, 2.2819490534836255, 1.6097497001374093]}}