{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 09:05:56.209680", "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": "2016-Jul-20_to_2016-Jul-25_271.0_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": 2016070002632}, "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": "July 20 2016"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "July 25 2016"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 6}, "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": 84811.08379471586}, "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", "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": 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": 271.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "271.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 268.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 273.25}, "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": 47.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2016-07-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.53, 45.97], [-90.75, 46.5], [-90.53, 47.03], [-90.0, 47.25], [-89.47, 47.03], [-89.25, 46.5], [-89.47, 45.97], [-90.0, 45.75], [-90.53, 45.97]]], [[[-89.03, 46.47], [-89.25, 47.0], [-89.03, 47.53], [-88.5, 47.75], [-87.97, 47.53], [-87.75, 47.0], [-87.97, 46.47], [-88.5, 46.25], [-89.03, 46.47]]]]}, "2016-07-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.0, 46.75], [-90.7, 46.62], [-90.53, 47.03], [-90.0, 47.25], [-89.75, 47.15], [-89.5, 47.25], [-89.25, 47.15], [-89.18, 47.18], [-89.03, 47.53], [-88.5, 47.75], [-87.97, 47.53], [-87.82, 47.18], [-87.47, 47.03], [-87.32, 46.68], [-87.25, 46.65], [-87.0, 46.75], [-86.47, 46.53], [-86.25, 46.0], [-86.47, 45.47], [-87.0, 45.25], [-87.25, 45.35], [-87.32, 45.32], [-87.35, 45.25], [-87.25, 45.0], [-87.35, 44.75], [-87.25, 44.5], [-87.35, 44.25], [-87.25, 44.0], [-87.47, 43.47], [-88.0, 43.25], [-88.5, 43.46], [-89.0, 43.25], [-89.25, 43.35], [-89.5, 43.25], [-89.75, 43.35], [-90.0, 43.25], [-90.53, 43.47], [-90.75, 44.0], [-90.62, 44.3], [-91.03, 44.47], [-91.18, 44.82], [-91.25, 44.85], [-91.5, 44.75], [-92.03, 44.97], [-92.25, 45.5], [-92.03, 46.03], [-91.68, 46.18], [-91.53, 46.53], [-91.0, 46.75]]]]}, "2016-07-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.0, 46.75], [-90.7, 46.62], [-90.53, 47.03], [-90.0, 47.25], [-89.75, 47.15], [-89.5, 47.25], [-89.25, 47.15], [-89.18, 47.18], [-89.03, 47.53], [-88.5, 47.75], [-87.97, 47.53], [-87.82, 47.18], [-87.47, 47.03], [-87.32, 46.68], [-87.25, 46.65], [-87.0, 46.75], [-86.47, 46.53], [-86.25, 46.0], [-86.47, 45.47], [-87.0, 45.25], [-87.25, 45.35], [-87.32, 45.32], [-87.35, 45.25], [-87.25, 45.0], [-87.35, 44.75], [-87.25, 44.5], [-87.35, 44.25], [-87.25, 44.0], [-87.47, 43.47], [-88.0, 43.25], [-88.25, 43.35], [-88.5, 43.25], [-88.75, 43.35], [-89.0, 43.25], [-89.25, 43.35], [-89.5, 43.25], [-89.75, 43.35], [-90.0, 43.25], [-90.53, 43.47], [-90.75, 44.0], [-90.62, 44.3], [-91.03, 44.47], [-91.18, 44.82], [-91.25, 44.85], [-91.5, 44.75], [-92.03, 44.97], [-92.25, 45.5], [-92.03, 46.03], [-91.68, 46.18], [-91.53, 46.53], [-91.0, 46.75]]]]}, "2016-07-23T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-91.0, 46.75], [-90.5, 46.54], [-90.18, 46.68], [-90.03, 47.03], [-89.5, 47.25], [-89.25, 47.15], [-89.0, 47.25], [-88.75, 47.15], [-88.5, 47.25], [-88.25, 47.15], [-88.0, 47.25], [-87.47, 47.03], [-87.32, 46.68], [-87.25, 46.65], [-87.0, 46.75], [-86.47, 46.53], [-86.25, 46.0], [-86.47, 45.47], [-87.0, 45.25], [-87.25, 45.35], [-87.32, 45.32], [-87.35, 45.25], [-87.25, 45.0], [-87.35, 44.75], [-87.25, 44.5], [-87.35, 44.25], [-87.25, 44.0], [-87.47, 43.47], [-87.82, 43.32], [-87.85, 43.25], [-87.75, 43.0], [-87.97, 42.47], [-88.5, 42.25], [-89.03, 42.47], [-89.25, 43.0], [-89.15, 43.25], [-89.18, 43.32], [-89.25, 43.35], [-89.5, 43.25], [-89.75, 43.35], [-90.0, 43.25], [-90.53, 43.47], [-90.75, 44.0], [-90.62, 44.3], [-91.03, 44.47], [-91.18, 44.82], [-91.25, 44.85], [-91.5, 44.75], [-92.03, 44.97], [-92.25, 45.5], [-92.03, 46.03], [-91.68, 46.18], [-91.53, 46.53], [-91.0, 46.75]]]]}, "2016-07-24T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.75, 44.0], [-89.53, 44.53], [-89.0, 44.75], [-88.75, 44.65], [-88.5, 44.75], [-87.97, 44.53], [-87.75, 44.0], [-87.85, 43.75], [-87.75, 43.5], [-87.85, 43.25], [-87.75, 43.0], [-87.97, 42.47], [-88.5, 42.25], [-89.03, 42.47], [-89.25, 43.0], [-89.15, 43.25], [-89.18, 43.32], [-89.53, 43.47], [-89.75, 44.0]]]]}, "2016-07-25T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-89.03, 44.03], [-88.5, 44.25], [-87.97, 44.03], [-87.75, 43.5], [-87.85, 43.25], [-87.75, 43.0], [-87.97, 42.47], [-88.5, 42.25], [-89.03, 42.47], [-89.25, 43.0], [-89.15, 43.25], [-89.25, 43.5], [-89.03, 44.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 6.3577015910505}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 4.788533119199106}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [23.883701379934507, 25.36562200908071, 25.39962955793618, 24.628289331430835, 25.95745348383258, 25.83910513118184]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.9072860606243, 27.11352778683562, 26.646423624416627, 28.054535298899566, 26.297795299408847, 26.12849553748407]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.112225765596406, 5.103809431174647, 5.15035877621635, 4.302969831235034, 3.90792688877184, 3.8402254906129087]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [4.270729990703785, 6.065809078975349, 6.3577015910505, 5.849339428962821, 4.2720147985289145, 3.8474306504715514]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.3937094715886071, 1.724342125573299, 1.7698285322458889, 1.4573505499516153, 1.3380966734065574, 1.3155793546429801]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.433931225056713, 1.9133124812899733, 2.187488897919515, 2.165003110021124, 1.4289950221706569, 1.3211740982625955]}}