{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:55:23.679972", "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": "2013-Dec-20_to_2013-Dec-22_270.5_30.5"}, "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": 2013120002241}, "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": "December 20 2013"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "December 22 2013"}, "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": 70271.27564632441}, "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": ["Gulf of Mexico"]}, "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": 30.5}, "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": 270.5}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "270.5\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 269.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 272.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": 27.25}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": 30.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2013-12-20T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.65, 28.25], [-90.75, 28.5], [-90.65, 28.75], [-90.75, 29.0], [-90.65, 29.25], [-90.75, 29.5], [-90.53, 30.03], [-90.18, 30.18], [-90.15, 30.25], [-90.25, 30.5], [-90.03, 31.03], [-89.5, 31.25], [-88.97, 31.03], [-88.82, 30.68], [-88.75, 30.65], [-88.5, 30.75], [-88.25, 30.65], [-88.0, 30.75], [-87.75, 30.65], [-87.5, 30.75], [-86.97, 30.53], [-86.75, 30.0], [-86.97, 29.47], [-87.32, 29.32], [-87.35, 29.25], [-87.25, 29.0], [-87.35, 28.75], [-87.25, 28.5], [-87.47, 27.97], [-88.0, 27.75], [-88.25, 27.85], [-88.32, 27.82], [-88.47, 27.47], [-88.82, 27.32], [-88.97, 26.97], [-89.5, 26.75], [-89.75, 26.85], [-90.0, 26.75], [-90.53, 26.97], [-90.75, 27.5], [-90.65, 27.75], [-90.75, 28.0], [-90.65, 28.25]]]]}, "2013-12-21T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.65, 28.25], [-90.75, 28.5], [-90.65, 28.75], [-90.75, 29.0], [-90.65, 29.25], [-90.75, 29.5], [-90.53, 30.03], [-90.18, 30.18], [-90.15, 30.25], [-90.25, 30.5], [-90.03, 31.03], [-89.5, 31.25], [-88.97, 31.03], [-88.82, 30.68], [-88.75, 30.65], [-88.5, 30.75], [-88.25, 30.65], [-88.0, 30.75], [-87.75, 30.65], [-87.5, 30.75], [-86.97, 30.53], [-86.75, 30.0], [-86.97, 29.47], [-87.32, 29.32], [-87.35, 29.25], [-87.25, 29.0], [-87.35, 28.75], [-87.25, 28.5], [-87.47, 27.97], [-88.0, 27.75], [-88.25, 27.85], [-88.32, 27.82], [-88.47, 27.47], [-88.82, 27.32], [-88.97, 26.97], [-89.5, 26.75], [-89.75, 26.85], [-90.0, 26.75], [-90.53, 26.97], [-90.75, 27.5], [-90.65, 27.75], [-90.75, 28.0], [-90.65, 28.25]]]]}, "2013-12-22T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[-90.65, 28.25], [-90.75, 28.5], [-90.65, 28.75], [-90.75, 29.0], [-90.65, 29.25], [-90.75, 29.5], [-90.53, 30.03], [-90.18, 30.18], [-90.15, 30.25], [-90.25, 30.5], [-90.03, 31.03], [-89.5, 31.25], [-88.97, 31.03], [-88.82, 30.68], [-88.75, 30.65], [-88.5, 30.75], [-88.25, 30.65], [-88.0, 30.75], [-87.75, 30.65], [-87.5, 30.75], [-86.97, 30.53], [-86.75, 30.0], [-86.97, 29.47], [-87.32, 29.32], [-87.35, 29.25], [-87.25, 29.0], [-87.35, 28.75], [-87.25, 28.5], [-87.47, 27.97], [-88.0, 27.75], [-88.25, 27.85], [-88.32, 27.82], [-88.47, 27.47], [-88.82, 27.32], [-88.97, 26.97], [-89.5, 26.75], [-89.75, 26.85], [-90.0, 26.75], [-90.53, 26.97], [-90.75, 27.5], [-90.65, 27.75], [-90.75, 28.0], [-90.65, 28.25]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 10.164446713155257}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 5.094896428015153}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [21.76813879167355, 22.60200319333171, 22.042571617612623]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [23.61181287175981, 24.145195438819883, 24.481373970897096]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [4.529163379694405, 5.5592373499023235, 5.19628855444873]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [7.309576974961487, 10.164446713155257, 7.433695309128154]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.285028129469795, 1.5474326729898467, 1.4263217752160218]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [1.4173086043834404, 1.9360361232445462, 1.6421666310637066]}}