{"version_information": {"version": "det_AHW_tail10.0_v1.1", "compiled_date": "2026-07-16 08:50:29.323123", "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": "2012-May-14_to_2012-May-18_59.0_-81.0"}, "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": 2012050002356}, "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": "May 14 2012"}, "end_date": {"name": "End date", "description": "Last date on which grid points are under the influence of an event", "value": "May 18 2012"}, "duration": {"name": "Duration", "description": "Time elapsed (days) from the start date to the end date", "value": 5}, "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": 89033.57074064692}, "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": ["Antarctica"]}, "IPCC_regions": {"name": "IPCC regions", "description": "List of all IPCC regions affected", "value": ["E.Antarctica"]}, "continents_affected": {"name": "Continents affected", "description": "List of all continents affected", "value": ["Antarctica"]}, "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": -81.0}, "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": 59.0}, "center_latf": {"name": "Center latitude", "description": "Formatted version of center longitude", "value": "59.0\u00b0E"}, "western_lon": {"name": "Westernmost longitude", "description": "Westernmost longitude affected by event", "value": 45.75}, "eastern_lon": {"name": "Easternmost longitude", "description": "Easternmost longitude affected by event", "value": 63.75}, "southern_lat": {"name": "Southernmost latitude", "description": "Southernmost latitude affected by event", "value": -83.75}, "northern_lat": {"name": "Northernmost latitude", "description": "Northernmost latitude affected by event", "value": -79.75}, "polygons": {"name": "Polygons", "description": "Polygon vertices describing the boundary of the event at each time step", "value": {"2012-05-14T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[51.75, -80.0], [51.97, -79.47], [52.5, -79.25], [52.75, -79.35], [53.0, -79.25], [53.25, -79.35], [53.5, -79.25], [53.75, -79.35], [54.0, -79.25], [54.53, -79.47], [54.68, -79.82], [54.75, -79.85], [55.0, -79.75], [55.25, -79.85], [55.5, -79.75], [56.03, -79.97], [56.18, -80.32], [56.25, -80.35], [56.5, -80.25], [56.75, -80.35], [57.0, -80.25], [57.25, -80.35], [57.5, -80.25], [57.75, -80.35], [58.0, -80.25], [58.25, -80.35], [58.5, -80.25], [58.75, -80.35], [59.0, -80.25], [59.25, -80.35], [59.5, -80.25], [59.75, -80.35], [60.0, -80.25], [60.25, -80.35], [60.5, -80.25], [61.03, -80.47], [61.18, -80.82], [61.25, -80.85], [61.5, -80.75], [61.75, -80.85], [62.0, -80.75], [62.25, -80.85], [62.5, -80.75], [62.75, -80.85], [63.0, -80.75], [63.53, -80.97], [63.68, -81.32], [64.03, -81.47], [64.25, -82.0], [64.03, -82.53], [63.5, -82.75], [63.25, -82.65], [63.0, -82.75], [62.75, -82.65], [62.5, -82.75], [62.25, -82.65], [62.0, -82.75], [61.75, -82.65], [61.5, -82.75], [61.25, -82.65], [61.0, -82.75], [60.75, -82.65], [60.5, -82.75], [60.25, -82.65], [60.0, -82.75], [59.75, -82.65], [59.5, -82.75], [59.25, -82.65], [59.0, -82.75], [58.75, -82.65], [58.5, -82.75], [58.25, -82.65], [58.0, -82.75], [57.75, -82.65], [57.5, -82.75], [57.25, -82.65], [57.0, -82.75], [56.75, -82.65], [56.5, -82.75], [56.25, -82.65], [56.0, -82.75], [55.75, -82.65], [55.5, -82.75], [55.25, -82.65], [55.0, -82.75], [54.47, -82.53], [54.32, -82.18], [54.25, -82.15], [54.0, -82.25], [53.75, -82.15], [53.5, -82.25], [52.97, -82.03], [52.82, -81.68], [52.47, -81.53], [52.25, -81.0], [52.35, -80.75], [52.32, -80.68], [51.97, -80.53], [51.75, -80.0]]]]}, "2012-05-15T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.25, -80.0], [45.47, -79.47], [46.0, -79.25], [46.25, -79.35], [46.5, -79.25], [46.75, -79.35], [47.0, -79.25], [47.25, -79.35], [47.5, -79.25], [47.75, -79.35], [48.0, -79.25], [48.53, -79.47], [48.68, -79.82], [48.75, -79.85], [49.0, -79.75], [49.25, -79.85], [49.5, -79.75], [49.75, -79.85], [50.0, -79.75], [50.25, -79.85], [50.5, -79.75], [50.75, -79.85], [51.0, -79.75], [51.25, -79.85], [51.5, -79.75], [51.75, -79.85], [51.82, -79.82], [51.97, -79.47], [52.5, -79.25], [52.75, -79.35], [53.0, -79.25], [53.25, -79.35], [53.5, -79.25], [53.75, -79.35], [54.0, -79.25], [54.53, -79.47], [54.68, -79.82], [54.75, -79.85], [55.0, -79.75], [55.25, -79.85], [55.5, -79.75], [56.03, -79.97], [56.18, -80.32], [56.25, -80.35], [56.5, -80.25], [56.75, -80.35], [57.0, -80.25], [57.25, -80.35], [57.5, -80.25], [57.75, -80.35], [58.0, -80.25], [58.25, -80.35], [58.5, -80.25], [58.75, -80.35], [59.0, -80.25], [59.25, -80.35], [59.5, -80.25], [59.75, -80.35], [60.0, -80.25], [60.25, -80.35], [60.5, -80.25], [61.03, -80.47], [61.18, -80.82], [61.25, -80.85], [61.5, -80.75], [61.75, -80.85], [62.0, -80.75], [62.25, -80.85], [62.5, -80.75], [62.75, -80.85], [63.0, -80.75], [63.53, -80.97], [63.68, -81.32], [64.03, -81.47], [64.25, -82.0], [64.03, -82.53], [63.63, -82.7], [63.75, -83.0], [63.65, -83.25], [63.75, -83.5], [63.53, -84.03], [63.0, -84.25], [62.75, -84.15], [62.5, -84.25], [62.25, -84.15], [62.0, -84.25], [61.75, -84.15], [61.5, -84.25], [61.25, -84.15], [61.0, -84.25], [60.75, -84.15], [60.5, -84.25], [60.25, -84.15], [60.0, -84.25], [59.75, -84.15], [59.5, -84.25], [59.25, -84.15], [59.0, -84.25], [58.75, -84.15], [58.5, -84.25], [58.25, -84.15], [58.0, -84.25], [57.75, -84.15], [57.5, -84.25], [57.25, -84.15], [57.0, -84.25], [56.75, -84.15], [56.5, -84.25], [56.25, -84.15], [56.0, -84.25], [55.75, -84.15], [55.5, -84.25], [55.25, -84.15], [55.0, -84.25], [54.75, -84.15], [54.5, -84.25], [54.25, -84.15], [54.0, -84.25], [53.75, -84.15], [53.5, -84.25], [53.25, -84.15], [53.0, -84.25], [52.75, -84.15], [52.5, -84.25], [52.25, -84.15], [52.0, -84.25], [51.75, -84.15], [51.5, -84.25], [51.25, -84.15], [51.0, -84.25], [50.75, -84.15], [50.5, -84.25], [49.97, -84.03], [49.82, -83.68], [49.75, -83.65], [49.5, -83.75], [49.25, -83.65], [49.0, -83.75], [48.75, -83.65], [48.5, -83.75], [47.97, -83.53], [47.75, -83.0], [47.85, -82.75], [47.82, -82.68], [47.47, -82.53], [47.32, -82.18], [46.97, -82.03], [46.82, -81.68], [46.75, -81.65], [46.5, -81.75], [45.97, -81.53], [45.75, -81.0], [45.85, -80.75], [45.82, -80.68], [45.47, -80.53], [45.25, -80.0]]]]}, "2012-05-16T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.25, -80.0], [45.47, -79.47], [46.0, -79.25], [46.25, -79.35], [46.5, -79.25], [46.75, -79.35], [47.0, -79.25], [47.25, -79.35], [47.5, -79.25], [47.75, -79.35], [48.0, -79.25], [48.53, -79.47], [48.68, -79.82], [48.75, -79.85], [49.0, -79.75], [49.25, -79.85], [49.5, -79.75], [49.75, -79.85], [50.0, -79.75], [50.25, -79.85], [50.5, -79.75], [50.75, -79.85], [51.0, -79.75], [51.25, -79.85], [51.5, -79.75], [51.75, -79.85], [51.82, -79.82], [51.97, -79.47], [52.5, -79.25], [52.75, -79.35], [53.0, -79.25], [53.25, -79.35], [53.5, -79.25], [53.75, -79.35], [54.0, -79.25], [54.53, -79.47], [54.68, -79.82], [54.75, -79.85], [55.0, -79.75], [55.25, -79.85], [55.5, -79.75], [56.03, -79.97], [56.18, -80.32], [56.25, -80.35], [56.5, -80.25], [56.75, -80.35], [57.0, -80.25], [57.25, -80.35], [57.5, -80.25], [57.75, -80.35], [58.0, -80.25], [58.25, -80.35], [58.5, -80.25], [58.75, -80.35], [59.0, -80.25], [59.25, -80.35], [59.5, -80.25], [59.75, -80.35], [60.0, -80.25], [60.25, -80.35], [60.5, -80.25], [61.03, -80.47], [61.18, -80.82], [61.25, -80.85], [61.5, -80.75], [61.75, -80.85], [62.0, -80.75], [62.25, -80.85], [62.5, -80.75], [62.75, -80.85], [63.0, -80.75], [63.53, -80.97], [63.68, -81.32], [64.03, -81.47], [64.25, -82.0], [64.03, -82.53], [63.63, -82.7], [63.75, -83.0], [63.65, -83.25], [63.75, -83.5], [63.53, -84.03], [63.0, -84.25], [62.75, -84.15], [62.5, -84.25], [62.25, -84.15], [62.0, -84.25], [61.75, -84.15], [61.5, -84.25], [61.25, -84.15], [61.0, -84.25], [60.75, -84.15], [60.5, -84.25], [60.25, -84.15], [60.0, -84.25], [59.75, -84.15], [59.5, -84.25], [59.25, -84.15], [59.0, -84.25], [58.75, -84.15], [58.5, -84.25], [58.25, -84.15], [58.0, -84.25], [57.75, -84.15], [57.5, -84.25], [57.25, -84.15], [57.0, -84.25], [56.75, -84.15], [56.5, -84.25], [56.25, -84.15], [56.0, -84.25], [55.75, -84.15], [55.5, -84.25], [55.25, -84.15], [55.0, -84.25], [54.75, -84.15], [54.5, -84.25], [54.25, -84.15], [54.0, -84.25], [53.75, -84.15], [53.5, -84.25], [53.25, -84.15], [53.0, -84.25], [52.75, -84.15], [52.5, -84.25], [52.25, -84.15], [52.0, -84.25], [51.75, -84.15], [51.5, -84.25], [51.25, -84.15], [51.0, -84.25], [50.75, -84.15], [50.5, -84.25], [49.97, -84.03], [49.82, -83.68], [49.75, -83.65], [49.5, -83.75], [49.25, -83.65], [49.0, -83.75], [48.75, -83.65], [48.5, -83.75], [47.97, -83.53], [47.75, -83.0], [47.85, -82.75], [47.82, -82.68], [47.47, -82.53], [47.32, -82.18], [46.97, -82.03], [46.82, -81.68], [46.75, -81.65], [46.5, -81.75], [45.97, -81.53], [45.75, -81.0], [45.85, -80.75], [45.82, -80.68], [45.47, -80.53], [45.25, -80.0]]]]}, "2012-05-17T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[45.25, -80.0], [45.47, -79.47], [46.0, -79.25], [46.25, -79.35], [46.5, -79.25], [46.75, -79.35], [47.0, -79.25], [47.25, -79.35], [47.5, -79.25], [47.75, -79.35], [48.0, -79.25], [48.53, -79.47], [48.68, -79.82], [48.75, -79.85], [49.0, -79.75], [49.25, -79.85], [49.5, -79.75], [49.75, -79.85], [50.0, -79.75], [50.25, -79.85], [50.5, -79.75], [50.75, -79.85], [51.0, -79.75], [51.25, -79.85], [51.5, -79.75], [51.75, -79.85], [52.0, -79.75], [52.25, -79.85], [52.5, -79.75], [52.75, -79.85], [53.0, -79.75], [53.25, -79.85], [53.32, -79.82], [53.47, -79.47], [54.0, -79.25], [54.53, -79.47], [54.68, -79.82], [54.75, -79.85], [55.0, -79.75], [55.25, -79.85], [55.5, -79.75], [56.03, -79.97], [56.18, -80.32], [56.25, -80.35], [56.5, -80.25], [56.75, -80.35], [57.0, -80.25], [57.25, -80.35], [57.5, -80.25], [57.75, -80.35], [58.0, -80.25], [58.25, -80.35], [58.5, -80.25], [58.75, -80.35], [59.0, -80.25], [59.25, -80.35], [59.5, -80.25], [59.75, -80.35], [60.0, -80.25], [60.25, -80.35], [60.5, -80.25], [61.03, -80.47], [61.18, -80.82], [61.25, -80.85], [61.5, -80.75], [61.75, -80.85], [62.0, -80.75], [62.25, -80.85], [62.5, -80.75], [62.75, -80.85], [63.0, -80.75], [63.53, -80.97], [63.75, -81.5], [63.65, -81.75], [63.75, -82.0], [63.54, -82.5], [63.75, -83.0], [63.65, -83.25], [63.75, -83.5], [63.53, -84.03], [63.0, -84.25], [62.75, -84.15], [62.5, -84.25], [62.25, -84.15], [62.0, -84.25], [61.75, -84.15], [61.5, -84.25], [61.25, -84.15], [61.0, -84.25], [60.75, -84.15], [60.5, -84.25], [60.25, -84.15], [60.0, -84.25], [59.75, -84.15], [59.5, -84.25], [59.25, -84.15], [59.0, -84.25], [58.75, -84.15], [58.5, -84.25], [58.25, -84.15], [58.0, -84.25], [57.75, -84.15], [57.5, -84.25], [57.25, -84.15], [57.0, -84.25], [56.75, -84.15], [56.5, -84.25], [56.25, -84.15], [56.0, -84.25], [55.75, -84.15], [55.5, -84.25], [55.25, -84.15], [55.0, -84.25], [54.75, -84.15], [54.5, -84.25], [54.25, -84.15], [54.0, -84.25], [53.75, -84.15], [53.5, -84.25], [53.25, -84.15], [53.0, -84.25], [52.75, -84.15], [52.5, -84.25], [52.25, -84.15], [52.0, -84.25], [51.75, -84.15], [51.5, -84.25], [51.25, -84.15], [51.0, -84.25], [50.75, -84.15], [50.5, -84.25], [49.97, -84.03], [49.82, -83.68], [49.75, -83.65], [49.5, -83.75], [49.25, -83.65], [49.0, -83.75], [48.75, -83.65], [48.5, -83.75], [47.97, -83.53], [47.75, -83.0], [47.85, -82.75], [47.82, -82.68], [47.47, -82.53], [47.32, -82.18], [46.97, -82.03], [46.82, -81.68], [46.75, -81.65], [46.5, -81.75], [45.97, -81.53], [45.75, -81.0], [45.85, -80.75], [45.82, -80.68], [45.47, -80.53], [45.25, -80.0]]]]}, "2012-05-18T11:30:00.000000000": {"type": "MultiPolygon", "coordinates": [[[[55.47, -82.03], [55.25, -81.5], [55.47, -80.97], [56.0, -80.75], [56.25, -80.85], [56.5, -80.75], [56.75, -80.85], [57.0, -80.75], [57.25, -80.85], [57.32, -80.82], [57.47, -80.47], [58.0, -80.25], [58.25, -80.35], [58.5, -80.25], [58.75, -80.35], [59.0, -80.25], [59.25, -80.35], [59.5, -80.25], [59.75, -80.35], [60.0, -80.25], [60.25, -80.35], [60.5, -80.25], [61.03, -80.47], [61.18, -80.82], [61.25, -80.85], [61.5, -80.75], [61.75, -80.85], [62.0, -80.75], [62.25, -80.85], [62.5, -80.75], [62.75, -80.85], [63.0, -80.75], [63.53, -80.97], [63.75, -81.5], [63.65, -81.75], [63.75, -82.0], [63.53, -82.53], [63.0, -82.75], [62.75, -82.65], [62.5, -82.75], [62.25, -82.65], [62.0, -82.75], [61.75, -82.65], [61.5, -82.75], [61.25, -82.65], [61.0, -82.75], [60.75, -82.65], [60.5, -82.75], [60.25, -82.65], [60.0, -82.75], [59.75, -82.65], [59.5, -82.75], [59.25, -82.65], [59.0, -82.75], [58.75, -82.65], [58.5, -82.75], [58.25, -82.65], [58.0, -82.75], [57.75, -82.65], [57.5, -82.75], [56.97, -82.53], [56.82, -82.18], [56.75, -82.15], [56.5, -82.25], [56.25, -82.15], [56.0, -82.25], [55.47, -82.03]]]]}}}, "max_amp": {"name": "Maximum anomaly amplitude", "description": "Maximum t2m anomaly recorded over entire duration", "value": 12.576283971291843}, "mean_amp": {"name": "Mean anomaly amplitude", "description": "Mean t2m anomaly over entire duration", "value": 8.751249902506409}, "evo_areamean": {"name": "Evolution of mean t2m", "description": "The daily evolution of mean t2m.", "value": [-51.7594370609645, -49.806276089353275, -50.40567405205931, -51.73298918816971, -53.80878139376949]}, "evo_maxamp": {"name": "Evolution of maximum t2m", "description": "The daily evolution of maximum t2m.", "value": [-50.15100777225703, -48.51158606598344, -47.787978689969464, -48.472710944439314, -53.4160360589664]}, "anom_evo_areamean": {"name": "Evolution of mean t2m anomalies", "description": "The daily evolution of mean t2m anomalies.", "value": [8.987274561341854, 9.521743529110704, 9.056079960953166, 7.762447310300859, 7.633548882492469]}, "anom_evo_maxamp": {"name": "Evolution of maximum t2m anomalies", "description": "The daily evolution of maximum t2m anomalies.", "value": [10.490673994071727, 12.576283971291843, 10.77287825241632, 8.920629673693014, 8.066708059515832]}, "anom_scaled_evo_areamean": {"name": "Evolution of mean standardized t2m anomalies", "description": "The daily evolution of mean standardized t2m anomalies.", "value": [1.6766688195728259, 1.762194608372881, 1.6894939165355212, 1.5054858539567342, 1.507523882049968]}, "anom_scaled_evo_maxamp": {"name": "Evolution of maximum standardized t2m anomalies", "description": "The daily evolution of maximum standardized t2m anomalies.", "value": [2.0354426974506143, 2.435758765126106, 1.9137085802913854, 1.6811996491846872, 1.5978040470245234]}}