{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:06.743152", "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": "2014-Apr-01_to_2014-Apr-04_277.5_36.0"}, "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": 2014040001257}, "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": "April 01 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 04 2014"}, "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": 57702.39164628065}, "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": 36.0}, "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": 276.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 280.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 34.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 37.25}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-04-01T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.5, 35.75], [-82.97, 35.53], [-82.75, 35.0], [-82.97, 34.47], [-83.5, 34.25], [-84.03, 34.47], [-84.25, 35.0], [-84.03, 35.53], [-83.5, 35.75]]]]}, "2014-04-02T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.18, 36.18], [-83.03, 36.53], [-82.68, 36.68], [-82.65, 36.75], [-82.75, 37.0], [-82.53, 37.53], [-82.0, 37.75], [-81.75, 37.65], [-81.5, 37.75], [-81.25, 37.65], [-81.0, 37.75], [-80.47, 37.53], [-80.25, 37.0], [-80.35, 36.75], [-80.25, 36.5], [-80.37, 36.2], [-80.25, 36.15], [-80.0, 36.25], [-79.47, 36.03], [-79.25, 35.5], [-79.47, 34.97], [-79.82, 34.82], [-79.97, 34.47], [-80.5, 34.25], [-80.75, 34.35], [-81.0, 34.25], [-81.25, 34.35], [-81.5, 34.25], [-81.75, 34.35], [-82.0, 34.25], [-82.25, 34.35], [-82.5, 34.25], [-82.75, 34.35], [-83.0, 34.25], [-83.25, 34.35], [-83.5, 34.25], [-84.03, 34.47], [-84.25, 35.0], [-84.03, 35.53], [-83.68, 35.68], [-83.53, 36.03], [-83.18, 36.18]]]]}, "2014-04-03T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.18, 36.18], [-83.03, 36.53], [-82.68, 36.68], [-82.65, 36.75], [-82.75, 37.0], [-82.53, 37.53], [-82.0, 37.75], [-81.75, 37.65], [-81.5, 37.75], [-81.25, 37.65], [-81.0, 37.75], [-80.47, 37.53], [-80.25, 37.0], [-80.35, 36.75], [-80.25, 36.5], [-80.37, 36.2], [-80.25, 36.15], [-80.0, 36.25], [-79.47, 36.03], [-79.25, 35.5], [-79.47, 34.97], [-79.82, 34.82], [-79.97, 34.47], [-80.5, 34.25], [-80.75, 34.35], [-81.0, 34.25], [-81.25, 34.35], [-81.5, 34.25], [-81.75, 34.35], [-82.0, 34.25], [-82.25, 34.35], [-82.5, 34.25], [-82.75, 34.35], [-83.0, 34.25], [-83.25, 34.35], [-83.5, 34.25], [-84.03, 34.47], [-84.25, 35.0], [-84.03, 35.53], [-83.68, 35.68], [-83.53, 36.03], [-83.18, 36.18]]]]}, "2014-04-04T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-83.53, 36.03], [-83.18, 36.18], [-83.03, 36.53], [-82.68, 36.68], [-82.65, 36.75], [-82.75, 37.0], [-82.53, 37.53], [-82.0, 37.75], [-81.75, 37.65], [-81.5, 37.75], [-81.25, 37.65], [-81.0, 37.75], [-80.47, 37.53], [-80.25, 37.0], [-80.35, 36.75], [-80.25, 36.5], [-80.37, 36.2], [-80.25, 36.15], [-80.0, 36.25], [-79.47, 36.03], [-79.25, 35.5], [-79.47, 34.97], [-79.82, 34.82], [-79.97, 34.47], [-80.5, 34.25], [-80.75, 34.35], [-81.0, 34.25], [-81.25, 34.35], [-81.5, 34.25], [-81.75, 34.35], [-82.0, 34.25], [-82.25, 34.35], [-82.5, 34.25], [-82.75, 34.35], [-83.0, 34.25], [-83.53, 34.47], [-83.75, 35.0], [-83.65, 35.25], [-83.75, 35.5], [-83.53, 36.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 8.457437009239072}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 6.4964666228265795}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [16.539802265701383, 18.37375458986321, 19.044698184256163, 18.569711167575576]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [16.539802265701383, 20.626444972328215, 21.24917295055826, 21.217210468164637]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.1513249915030315, 6.297718414792383, 6.9379672596885955, 6.303822794112204]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [5.1513249915030315, 7.552747977939816, 8.457437009239072, 6.959299181373751]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.2730112093928727, 1.475256964384528, 1.6264871403248493, 1.4235234351454984]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.2730112093928727, 1.6081775233802285, 1.8401088374486987, 1.5554161656307097]}}