{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:56:15.450174", "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-10_to_2014-Apr-13_259.5_32.0"}, "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": 2014040001718}, "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 10 2014"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "April 13 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": 55372.29594753661}, "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", "N.Central-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": 32.0}, "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": 258.25}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 261.25}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 30.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 32.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2014-04-10T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.03, 32.53], [-101.5, 32.75], [-101.25, 32.65], [-101.0, 32.75], [-100.75, 32.65], [-100.5, 32.75], [-100.25, 32.65], [-100.18, 32.68], [-100.03, 33.03], [-99.5, 33.25], [-98.97, 33.03], [-98.75, 32.5], [-98.87, 32.2], [-98.47, 32.03], [-98.25, 31.5], [-98.35, 31.25], [-98.25, 31.0], [-98.47, 30.47], [-99.0, 30.25], [-99.25, 30.35], [-99.5, 30.25], [-99.75, 30.35], [-99.82, 30.32], [-99.97, 29.97], [-100.5, 29.75], [-101.03, 29.97], [-101.25, 30.5], [-101.15, 30.75], [-101.18, 30.82], [-101.25, 30.85], [-101.5, 30.75], [-102.03, 30.97], [-102.25, 31.5], [-102.15, 31.75], [-102.25, 32.0], [-102.03, 32.53]]]]}, "2014-04-11T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.03, 32.53], [-101.5, 32.75], [-101.25, 32.65], [-101.0, 32.75], [-100.75, 32.65], [-100.5, 32.75], [-100.25, 32.65], [-100.18, 32.68], [-100.03, 33.03], [-99.5, 33.25], [-99.25, 33.15], [-99.0, 33.25], [-98.47, 33.03], [-98.25, 32.5], [-98.46, 32.0], [-98.25, 31.5], [-98.35, 31.25], [-98.25, 31.0], [-98.47, 30.47], [-99.0, 30.25], [-99.25, 30.35], [-99.5, 30.25], [-99.75, 30.35], [-99.82, 30.32], [-99.97, 29.97], [-100.5, 29.75], [-100.75, 29.85], [-101.0, 29.75], [-101.25, 29.85], [-101.5, 29.75], [-102.03, 29.97], [-102.25, 30.5], [-102.04, 31.0], [-102.25, 31.5], [-102.15, 31.75], [-102.25, 32.0], [-102.03, 32.53]]]]}, "2014-04-12T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.03, 32.53], [-101.5, 32.75], [-101.25, 32.65], [-101.0, 32.75], [-100.75, 32.65], [-100.5, 32.75], [-100.25, 32.65], [-100.18, 32.68], [-100.03, 33.03], [-99.5, 33.25], [-99.25, 33.15], [-99.0, 33.25], [-98.47, 33.03], [-98.25, 32.5], [-98.46, 32.0], [-98.25, 31.5], [-98.35, 31.25], [-98.25, 31.0], [-98.47, 30.47], [-99.0, 30.25], [-99.25, 30.35], [-99.5, 30.25], [-99.75, 30.35], [-99.82, 30.32], [-99.97, 29.97], [-100.5, 29.75], [-100.75, 29.85], [-101.0, 29.75], [-101.25, 29.85], [-101.5, 29.75], [-102.03, 29.97], [-102.25, 30.5], [-102.04, 31.0], [-102.25, 31.5], [-102.15, 31.75], [-102.25, 32.0], [-102.03, 32.53]]]]}, "2014-04-13T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-102.03, 32.53], [-101.5, 32.75], [-101.25, 32.65], [-101.0, 32.75], [-100.75, 32.65], [-100.5, 32.75], [-100.25, 32.65], [-100.18, 32.68], [-100.03, 33.03], [-99.5, 33.25], [-99.25, 33.15], [-99.0, 33.25], [-98.47, 33.03], [-98.25, 32.5], [-98.47, 31.97], [-98.82, 31.82], [-98.85, 31.75], [-98.75, 31.5], [-98.97, 30.97], [-99.5, 30.75], [-99.75, 30.85], [-99.82, 30.82], [-99.97, 30.47], [-100.32, 30.32], [-100.47, 29.97], [-101.0, 29.75], [-101.25, 29.85], [-101.5, 29.75], [-102.03, 29.97], [-102.25, 30.5], [-102.04, 31.0], [-102.25, 31.5], [-102.15, 31.75], [-102.25, 32.0], [-102.03, 32.53]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 7.722427454678325}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.642900716189136}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [24.03199342852787, 24.189272811928276, 24.357210032510523, 24.83888687558624]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [24.59056482977934, 25.2918865449098, 25.298294482201243, 26.016292275102217]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [5.385215339080071, 5.440163756681763, 5.608451441116174, 6.195787690115573]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [6.301258885360994, 6.206096675820106, 6.989127452209345, 7.722427454678325]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.1969352493707368, 1.2508561443164654, 1.3025168091165096, 1.4541420800422253]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.32997692176695, 1.389495731559005, 1.5044074083274783, 1.7314202327578456]}}